Lane Closure Strategy Technical Report and Lane Closure Schedules

NORTH

Colorado Department of Transportation Region 4

Lane Closure Strategy

Fourth Edition

Technical Report and

Lane Closure Schedules

Year 2020

LANE CLOSURE STRATEGY – 4

EDITION

Colorado Department of Transportation

Region 4

Jointly prepared by:

Colorado Department of Transportation, Region 4 – Traffic Section

Felsburg Holt & Ullevig

Colorado Department of Transportation

Jonathan Woodworth

Felsburg Holt & Ullevig

Lyle E. DeVries, PE, PTOE

Ryan K. Saline, EI

FHU Reference No. 117009-21

May 2020

Region 4 Lane Closure Strategy, 4

Ed.

Page i

TABLE OF CONTENTS

Page

I. INTRODUCTION ................................................................................................................... 1

A. Purpose and Use ................................................................................................................................................. 1

B. Summary of Major Changes ............................................................................................................................. 1

C. Strategy Parameters ........................................................................................................................................... 4

D. Technical Report ................................................................................................................................................. 5

E. Analysis Methodology ........................................................................................................................................ 5

II. LANE CLOSURE SCHEDULING AND VARIANCE PROCEDURES ............................... 8

A. Lane Closures for Maintenance Work .......................................................................................................... 8

B. Lane Closures for Design Projects ................................................................................................................. 8

C. Lane Closure Variances – During Construction ......................................................................................... 8

D. Variance Requests .............................................................................................................................................. 8

III. FREEWAY ANALYSIS ......................................................................................................... 13

A. Data Collection and Synthesis ....................................................................................................................... 13

B. Analysis Methodology ...................................................................................................................................... 13

C. Freeway Analysis Results ................................................................................................................................ 15

IV. MULTI-LANE HIGHWAY ANALYSIS ............................................................................... 17

A. Data Collection and Synthesis ....................................................................................................................... 17

B. Analysis Methodology ...................................................................................................................................... 17

C. Multi-Lane Analysis Results ............................................................................................................................ 18

V. TWO-LANE HIGHWAY ANALYSIS ................................................................................. 19

A. Data Collection and Synthesis ....................................................................................................................... 19

B. Capacity Analysis .............................................................................................................................................. 19

C. Analysis Methodology ...................................................................................................................................... 20

D. Two-Lane Analysis Results ............................................................................................................................. 20

VI. ADJUSTMENTS TO ALLOWABLE LANE CLOSURE HOURS ..................................... 21

Appendices

Appendix A. Lane Closure Strategy Use Specifications

Appendix B. Local Noise Ordinances

Appendix C. Spring/Summer Allowable Closure Hours

Appendix D. Fall/Winter Allowable Closure Hours

Appendix E. Dual-Lane Allowable Closure Hours

Region 4 Lane Closure Strategy, 4

Ed.

Page ii

List of Figures

Page

Figure 1. CDOT Region 4 Map ................................................................................................................................. 2

Figure 2. Lane Closure Scheduling Decision Tree ................................................................................................ 3

Figure 3. CDOT Maintenance Work Lane Closure Procedure ...................................................................... 10

Figure 4. CDOT Projects During Design Lane Closure Procedure .............................................................. 11

Figure 5. Variance Procedure – During Construction ...................................................................................... 12

Figure 6. Sample Arterial Arrival / Departure Curves ...................................................................................... 16

List of Tables

Page

Table 1. Analysis Seasons and Months ................................................................................................................... 5

Table 2. ATR Day-of-Week Factors ....................................................................................................................... 6

Table 3. Closure Capacity Values for Two-Lane Highways ............................................................................ 19

Region 4 Lane Closure Strategy, 4

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Page 1

I. Introduction

A. Purpose and Use

The intent of this Lane Closure Strategy (LCS) is to establish uniform criteria and guidance for

scheduling lane closures in Region 4. Figure 1 shows the Region 4 engineering and maintenances areas

covered by this LCS. The LCS was formulated to strike an appropriate balance between delays to the

traveling public in the work zone and the cost of construction and maintenance. It is applicable to single-

lane closures (and multi-lane closures on six-lane roadways) related to construction and maintenance

activities on roads controlled by the Colorado Department of Transportation (CDOT). It is based on

extensive data analyses and estimates of delays expected during lane closures. The LCS addresses

weekday and weekend traffic demand and considers temporal variations in traffic volume occurring over

a typical 24-hour period. The LCS also accounts for seasonal variations in traffic volumes.

Prior to the completion of the 1

Edition of the Region 4 LCS (published in 2009), lane closure decisions

were primarily based on field observations, previous experience, and engineering judgment. Use of the

information presented in this LCS clarifies the lane closure hours that may be more appropriate,

simplifies the decision process for the end user, and reduce the uncertainty associated with handling

traffic during construction.

This LCS is not meant to be a stand-alone document but is intended to be used in concert with all

relevant information available to the decision-maker. For instance, a highway segment may be within the

recommended delay threshold to allow a lane closure, but the use of the route for a special event or

holiday traffic may influence the final selection of a lane closure schedule. At some locations, a noise

ordinance may conflict with lane closure schedules recommended in this LCS. If a potential to generate

noise levels in excess of the limit allowed by the ordinance exists, the project manager may need to seek

a variance.

The Region 4 Traffic Section plans to recalibrate the lane closure schedules presented herein every

three years to reflect changes in traffic volumes and available capacity. This is the 4

Edition of the

Region 4 LCS and a full revision will occur again after 3 years.

Figure 2 depicts a decision tree which can be used to locate and schedule a lane closure. Detailed lane

closure schedules for this LCS are found in Appendix C, Appendix D, and Appendix E.

B. Summary of Major Changes

The 4

Edition of this LCS incorporates some changes compared to the previous edition, including

changes in strategy parameters and allowable closure hours. The following points summarize major

changes to the LCS in this edition:

 Based on conversations with Region 4 Traffic Staff, only a portion of highway segments were

reanalyzed in this edition of the LCS. The highways selected for reanalysis experienced

significant AADT increases, had recent construction altering the roadway geometry, or were

identified as critical highway segments within the Region.

 Since the publishing of the previous Region 4 LCS edition, the Highway Capacity Manual (HCM)

has revised the baseline capacity of two-lane highways, which is used in this LCS to determine

allowable closure hours for three-lane highways. Section III.

B reflects this change.

 This version of the LCS does not include descriptive closure maps like the previous edition.

Tables in

Appendix C, Appendix D, and Appendix E display allowable closure hours.

Figure 1

Map of CDOT Region 4

CDOT NPS TO21 R4 LCS Completion 17-009-21 04/15/20

Within the proper appendix, locate the State Highway number, direction and milepoint of the closure.

The lane closu

re schedule will be shown in the corresponding row.

Only along roadways with 3 or more travel lanes in a single direction

2-Lane Closure

Number of Closed Lanes?

1-Lane Closure

Day of Week?

Season?

APPENDIX C APPENDIX D APPENDIX D APPENDIX EAPPENDIX C

Season?

Weekend

Weekday

(Monday-Friday)

Spring/Summer

(April-October)

Fall/Winter

(November-March)

Spring/Summer

(April-October)

Fall/Winter

(November-March)

Figure 2

Lane Closure Scheduling

Decision Tree

CDOT NPS TO21 R4 LCS Completion 17-009-21 05/08/20

Region 4 Lane Closure Strategy, 4

Ed.

Page 4

 Additional highway segment breaks were added to this edition of the LCS to reflect changes to

the roadway geometry and AADT since the last edition.

 Reanalysis of traffic volumes was limited to select highways chosen based on AADT and highway

geometry changes with input from CDOT Region 4 stakeholders. The highways chosen for

reanalysis included portions of SH 1, SH 7, SH 14, I-25, US 34, US 36, SH 39, US 40, SH 42,

SH 52, SH 56, SH 60, SH 66, SH 72, US 85, SH 86, SH 93, SH 94, SH 113, SH 119, US 138,

SH 144, SH 157, SH 170, SH 257, US 287, US 385, SH 392, and SH 402.

 An additional section was added to this report (Section VI) documenting changes made to the

allowable hours beyond the recommendations provided by the traffic volume analysis.

C. Strategy Parameters

The following parameters are guidelines for the scope and application of this LCS. Appendix A

provides use specifications with respect to special events, emergency situations, and strategy updates.

 This LCS is to be used in conjunction with State of Colorado Statutes 42-04-106 and

24-33.5-226 in the implementation of lane closures.

 The allowable lane closure hours outlined in this LCS are intended for application during typical

“non-event” traffic conditions. Closures during special events will be governed by the

specification outlined in

Appendix A.

 Appendix A also outlines closure notification procedures.

 Closures between 11 AM and 10 PM on Fridays and Sundays for all of I-25 and the portion of

State Highway (SH) 119 between Boulder (SH 157) and Longmont (US 287) should have specific

approval from the Region 4 Traffic Operations Engineer or Traffic Engineer.

 Closures will not be allowed between 11 AM and 10 PM on Fridays and Sundays during the

Spring/Summer season along the following state highway canyon segments:

SH Description

Beginning

Milepoint #

Ending

Milepoint #

SH 119A Boulder Canyon 22.75 40.93

US 36B Lyons to Estes Park 0.00 20.36

SH 7A St. Vrain Canyon 0.00 33.08

US 34A Big Thompson Canyon 64.23 88.68

SH 14B Poudre Canyon 64.82 121.71

 Temporary lane closures necessitated by public safety emergencies supersede the schedules

outlined in this LCS.

 Freeway lane closure hours are to be applied to mainline freeway segments only. The freeway

allowed hours are not applicable to interchange ramps or frontage roads.

 The allowable lane closure hours on two-lane and three-lane roadways were developed to

account specifically for the presence of trucks in the traffic flow. Allowable lane closure hours

on multi-lane roadways were generally account for the presence of trucks.

 The LCS is based on Year 2018 Average Annual Daily Traffic (AADT) volume information from

CDOT’s Online Transportation Information System (OTIS).

Region 4 Lane Closure Strategy, 4

Ed.

Page 5

 The LCS covers weekday and weekend traffic conditions and accounts for temporal variations in

traffic volumes that occur during a typical 24-hour time period.

 Local noise ordinances must be considered before implementing lane closures through

municipalities. Known noise ordinances for cities within Region 4 are included in

Appendix B.

 When analysis determined that lane closures would be allowed or restricted for only one hour

(generally during mid-day hours), schedules were adjusted to remove any such closures.

 Lane closure schedules were developed separately for two seasonal categories: Spring/Summer

and Fall/Winter.

Table 1 depicts the months included in each scheduling category.

Table

1 . Analysis Seasons and Months

Season Months Included

Spring/Summer April, May, June, July, August, September, October

Fall/Winter November, December, January, February, March

D. Technical Report

This report summarizes the underlying methodology and assumptions used to develop the Region 4

LCS. It also establishes guidelines for applying the LCS to situations across the Region. This report

includes allowed closure hours for every state highway facility in the Region except portions that are not

maintained by Region 4, such as US Highway (US) 34A from milepost (MP) 33.33 to MP 57.69 in Rocky

Mountain National Park and US 36B from MP 37.60 to MP 48.00, which is maintained by Region 1.

E. Analysis Methodology

Traffic Information

Region 4 is geographically diverse and covers state highways in the mountainous areas of the Front

Range, the Foothills Cities along the I-25 corridor north of Denver, and the plains north and east of

Greeley to the Wyoming, Nebraska, and Kansas state lines. Traffic data were compiled to provide

information specific to the diverse areas within Region 4.

Through CDOT’s OTIS database, AADT (a 365-day average) volume data are available for all state

highway segments in the Region. AADT information for Year 2018 was used for this 4

Edition of the

LCS. CDOT also maintains a system of 28 Automatic Traffic Recorders (ATRs) throughout Region 4 to

monitor traffic continuously. Hourly volumes are available by direction for every day of the year. ATRs

were used to gather data covering the full calendar Year 2018 for the purposes of this LCS.

Data from each of the 28 ATR locations were analyzed to evaluate variation in daily traffic levels over

the course of the calendar year. The data indicated that the months of May through September were

generally uniform relative to the other months of the year for most of the ATR locations. With

consultation from the Region 4 Traffic Section, it was determined that these months would be

categorized as the Spring/Summer Lane Closure season, and the months of April, May and October

were added. The remaining months were categorized as the Fall/Winter season. Day of week variations

were evaluated within these seasonal categories in a similar fashion, and it was determined that the days

of Monday through Thursday would represent the weekday condition. Fridays were not included in the

weekday data compilation because hourly patterns differ from other weekdays, particularly after noon.

The higher of Saturday or Sunday daily traffic would represent the weekend.

Region 4 Lane Closure Strategy, 4

Ed.

Page 6

Based on these categorizations, four factors were developed for each ATR location. Factors are

multiplied by the AADT volume to calculate the Average Daily Traffic (ADT) volume for a specific

season and day of week. For example, the AADT along US 85 north of Nunn (ATR #215) could be

multiplied by 1.07 to calculate the Summer weekday ADT. This indicates that Summer weekdays carry 7

percent more traffic than the annual average. Table 2 summarizes factors for each ATR location.

Analyses of highways with no ATR location used nearby ATR locations to represent traffic conditions.

Table

2 . ATR Day- of- Week Factors

Highway ATR MP

Spring/Summer Fall/Winter

WD WE WD WE

US 6J 1 439.5 1.10 0.81 1.02 0.70

SH 14C 508 137.9 1.08 0.84 1.07 0.79

SH 14C 7 152.4 1.10 0.78 1.05 0.69

014C 660 234.0 1.13 0.82 1.02 0.71

025A 103 230.5 1.06 0.95 0.96 0.83

025A 16 256.2 1.06 0.99 0.94 0.85

025A 127 272.3 1.09 1.04 0.91 0.80

034A 205 64.9 0.97 1.25 0.49 0.48

034A 245 99.3 1.09 0.85 1.03 0.81

034B 206 257.0 1.17 0.92 0.97 0.70

036B 244 1.5 1.13 1.72 0.76 0.99

036B 4 44.4 1.09 0.86 1.00 0.76

036D 101702 128.3 1.04 1.01 0.90 0.84

040H 13 388.6 1.10 0.92 1.01 0.83

063A 102801 53.1 1.05 0.90 0.99 0.80

070A 14 365.3 1.04 1.18 0.80 0.91

070A 109 438.8 1.06 1.23 0.80 0.91

071D 213 173.3 1.05 0.95 0.92 0.77

076A 10 39.2 1.03 1.14 0.81 0.85

076A 115 128.8 1.04 1.22 0.75 0.82

085C 103694 244.9 1.08 0.86 0.98 0.75

085L 103712 266.9 1.11 0.75 1.02 0.68

085L 215 293.4 1.07 0.88 1.00 0.78

119A 312 21.3 1.04 1.26 0.79 0.83

257A 247 5.4 1.10 0.63 1.08 0.60

287C 256 319.1 1.10 0.86 1.01 0.74

287C 8 352.9 1.04 1.29 0.74 0.81

385C 221 189.4 1.13 0.91 0.98 0.78

Notes: ATR = Automatic Traffic Recorder; MP = Milepost; WD = Weekday; WE = Weekend

Region 4 Lane Closure Strategy, 4

Ed.

Page 7

Additionally, hourly traffic volume information is available for at least one location on all state highways

in Region 4. This information is primarily weekday counts taken during summer months (May through

September). Some hourly distributions from previous LCS editions were carried over from the

Edition of the Region 4 LCS. These distributions are now over 10 years old and may not be reflective

of current traffic conditions, especially the timing of peak periods. As a result, hourly volumes were

compiled for all segments that were reanalyzed in this edition in order to determine new hourly

distributions.

Analytical Procedure

Two analytical procedures were developed to evaluate traffic characteristics throughout the system and

to develop appropriate lane closure schedules. Freeways and multi-lane arterials have one set of capacity

and operational characteristics since both directions can operate simultaneously with one lane closed.

Closures are not allowed when and where the average delay per vehicle caused by the closure exceeds

10 minutes. The delay calculations were performed using a spreadsheet implementation of arrival /

departure curves. This process is further described in Section III and Section IV.

The two-lane and three-lane analysis process is based on the length of the closure and capacities for

various closure lengths outlined in the Workzone Traffic Analysis Guide (Oregon Department of

Transportation, February 2005) of the expected capacity of the single lane that is open to traffic. This

process is further described in Section V.

The lane closure tables in Appendix C, Appendix D, and Appendix E present in detail the allowable

closure hours along all roadway segment types in Region 4. The schedules have been developed for each

segment of state highway. Segments have been divided at locations where the roadway narrows or

widens or where traffic volumes change significantly.

VARIANCE PROCESS and

CLOSURE PROCEDURES

Region 4 Lane Closure Strategy, 4

Ed.

Page 8

II. Lane Closure Scheduling and Variance Procedures

A. Lane Closures for Maintenance Work

Maintenance work efforts along state highways often require lane closures. For such efforts, Figure 3

outlines the procedure for implementing a lane closure.

B. Lane Closures for Design Projects

Allowed lane closure hours are typically outlined in the specifications for CDOT design projects. The

procedure for using the LCS to identify these hours is outlined in Figure 4. The procedure also

includes steps for modifying the closure hours if needed.

Unique circumstances may warrant modification(s) to the basic closure schedule. These unique

circumstances might include, but are not limited to, the following:

 Temporary lane closures necessitated by public safety emergencies supersede the hours

outlined in this LCS.

 Nighttime temperatures, noise restrictions (based on adjacent land use or town ordinances),

materials supply limitations, etc.

 Nature of construction activity, for example, blasting may only be done during daylight hours.

 Seasonal or special events

 Potential restrictions for oversize vehicles.

A work week is typically considered to be from Sunday at 9 PM to Friday at noon.

C. Lane Closure Variances – During Construction

Upon implementing closure hours, it may be determined that an adjustment in the lane closure schedule

is needed during construction. Figure 5 outlines the procedure for changing the closure hours during

construction. Lane closures may require variances for a variety of reasons. Typical reasons for variance

requests include:

 Chip Seals: Due to the short time frame for implementation, the need for higher daytime

temperatures, and the need for higher daytime traffic volumes to compact the product.

 Construction/Maintenance Activities: Due to particular techniques and/or projects that

may require more continuous hours of lane closure than are possible given the restricted hours.

 Alternate Routes: Due to the availability of multiple alternate routes and/or detours that can

potentially lower traffic volumes and allow for expanded lane closure schedules.

 Night-work Restrictions: Due to municipal noise ordinances that restrict night work and/or

the operation of material plants at night.

D. Variance Requests

Variance requests must be submitted to the Region 4 Traffic Section and should, at a minimum, include:

 The location and limits of the state highway lane closure.

 A reiteration of the restricted hours in the Lane Closure Strategy.

 A presentation of the requested change to the restricted hours, specifying the new hours by the

season, day-of-week, and starting and ending time.

Region 4 Lane Closure Strategy, 4

Ed.

Page 9

 A concise statement as to the reason why a variance is being requested.

 A technical basis supporting the new allowed hours. Technical information may include:

• Recent traffic counts that show a different daily volume or hourly traffic pattern from the

data used for the Lane Closure Strategy

• Presentation of a traffic control strategy that would make use of alternate traffic routing or

traffic control measures which would soften the impact of the lane closure during the new

allowed hours.

• Cost efficiencies that would result from implementing the new lane closure hours.

The variance request shall take the form of a letter or a memorandum addressed to the CDOT

Region 4 Traffic Operations Engineer. The request may be delivered as a hard copy or as an email

attachment.

Will work effort

equi

equir

e closu

e closure

of a lane along a

State High

State Highw

ay?

YES

Variances require approval from the Region Trafﬁc Operations

Engineer or Trafﬁc Engineer.

Can

Can w

ork effort

be handled within

the all

the allow

able

closu

closur

e hours?

YES

Identify

Work Effort

Consult Lane Closure

Strategy to Identify

allowable lane

closure hours

Proceed with maintenance work effort

Send email notice to

Region 4 Trafﬁc &

Safety that allowable

hours will be followed

Contact

Region 4 Trafﬁc

& Safety

for approval

Figure 3

CDOT Access Permit Projects

and Maintenance Work

Lane Closure Procedure

(Not applicable to emergency roadway maintenance situations)

CDOT NPS TO21 R4 LCS Completion 17-009-21 03/27/20

CDOT NPS TO12 LCS Completion 17-009-12 12/06/18

Will the construction

effort

effort r

equi

equir

e closu

e closur

e of a lane

along a State High

along a State Highw

ay?

YES

Is a

Is a v

ariance

desi

desir

ed to inc

ed to incr

ease

all

allow

able

closu

closur

e times?

YES

Region 4

Trafﬁc &

Safety

approve?

YES

Variances require approval from the Region Trafﬁc

Operations Engineer or Trafﬁc Engineer.

Complete Preliminary Design

& Submit F.I.R. Plan Set

Consult Lane Closure

Strategy to Identify Allowable

Lane Closure Hours

Hold F.I.R. Meeting &

Compile F.I.R. Comments

Consult Lane Closure

Strategy to Identify

allowable lane closure hours

Incorporate F.I.R. Comments

& Develop F.O.R. Plan Set

Finalize Construction

Documents

Identify allowable lane

closure hours in

Project Speciﬁcations

Enter Design

Variance

Procedure

(below)

Indicate desired

schedule to

Region 4 Trafﬁc

& Safety

Representative

Adjust schedule

to reﬂect

requested hours

(monitor queues and delays

upon implementing)

Modify desired

schedule

Figure 4

CDOT Projects

During Design

Lane Closure Procedure

Variance Procedure -

During Design

CDOT NPS TO21 R4 LCS Completion 17-009-21 03/27/20

Is a variance

desired to increase

allowable

closure times?

Region 4

Trafﬁc &

Safety

approve?

Does

exceed 1 mile

exceed 30 minutes?

YES

YES NO

YES

additional

closure

time

desired?

YES

Variances along freeways require approval from the

Region Trafﬁc Operations Engineer or Trafﬁc Engineer.

Variances along other state highways require approval from

the Region 4 Trafﬁc and Local Agency Resident Engineer.

Initiate lane closure

during times allowed by

Lane Closure Strategy

Modify

desired

schedule

Continue to

operate with

allowable hours

per Lane Closure

Strategy

Indicate desired schedule

to Region 4 Trafﬁc &

Safety

Implement desired lane closure hours. During

closure, conduct the following measurements

using a pilot car every 1/2 hour:

Re-open lanes and

revert to allowable

times per Lane

Closure Strategy

Adjust schedule

to reﬂect

requested hours

and continue to

monitor queue

and delay

File report with Region 4

Trafﬁc & Safety

documenting hours

proposed and results

of measurements

Figure 5

Variance Procedure - During Construction

Distance (in miles) from back end of queued

vehicles to beginning of lane closure

Time spent in the queue (in minutes)

Calculate delay =

-{[60 * ]÷[posted speed]}

CDOT NPS TO21 R4 LCS Completion 17-009-21 05/08/20

2 1

Region 4 Lane Closure Strategy, 4

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Page 13

III. Freeway Analysis

Significant portions of Interstates 25, 70, and 76 form freeway segments within Region 4. All freeways

are four or more lanes wide and are divided highways with controlled access and grade separated

interchanges only. The freeway analysis methodology was developed to address closure conditions

unique to these roadways.

A. Data Collection and Synthesis

Traffic data for I-25, I-70, and I-76 were gathered from ATR information as well as individual spot counts

from the CDOT OTIS database. As shown in Table 2, CDOT maintains three ATR locations on I-25,

two locations on I-70, and two on I-76. ATR data was used to develop seasonal and day-of-week factors,

while spot counts provided segment AADT, truck volumes, and hourly distributions. All these tools

were used to calculate hourly traffic volumes for each freeway segment.

B. Analysis Methodology

Delay Threshold

The approach used to determine appropriate lane closure schedules for freeway segments consisted of

comparing traffic demand with roadway capacity. The closure of a lane on a freeway segment reduces

roadway capacity and can create a bottleneck for traffic. To determine when a lane closure along a

freeway segment would be appropriate, it is necessary to determine times of day at which a lane closure

would reduce the roadway capacity to a point where demand would exceed capacity, creating a

bottleneck and causing delay to vehicles. Times during which the implementation of a lane closure

induced an average vehicle delay in excess of 10 minutes for the duration of the bottleneck are

eliminated as potential closure times. For these analyses, delay was defined as the increase in travel time

encountered during a lane closure compared to the estimated travel time during free-flow conditions.

The average delay value of 10 minutes per vehicle was selected as a suitable delay threshold based on a

review of prevalent practices around the country and internal discussions within CDOT. An average

delay value of 10 minutes per vehicle provides an appropriate balance between delays to the traveling

public and the cost of construction and maintenance.

Lane closures implemented in accordance with the allowable hours included in this strategy are

anticipated to cause delay for drivers. The effects of this delay, however, would be softened by the

availability of alternate routes and detours to get around the closed portion of roadway. By including

delay tolerances in these calculations, the restricted hours in the LCS account for the presence of

alternate routes and detours.

Capacity Values

The closure of a lane along a freeway segment causes a reduction in roadway capacity. In order to

determine when a lane closure along a mainline freeway segment would be appropriate, it is necessary

to determine times of day at which a lane closure would reduce the roadway capacity to a point where

closure delay exceeds 10 minutes. A lane closure would not be allowed during such times. When

adequate capacity to accommodate demand exists even with the closure of a lane, a lane closure is

allowed.

Typical freeway lane capacity varies between approximately 1,800 vehicles per hour per lane (vphpl) and

2,300 vphpl. Mainline freeway traffic volumes recorded in the Denver area have indicated that lane

capacity can be as high as 2,500 vphpl. The introduction of a lane closure to a mainline freeway segment

Region 4 Lane Closure Strategy, 4

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Page 14

would be expected to reduce this typical capacity by distracting drivers and shifting lane alignments,

among other factors. Research conducted by Krammes and Lopez (Transportation Research Record

1442, 1994 pp. 49-56) cited in the Highway Capacity Manual 2010 (HCM 2010) (2010 Edition,

Transportation Research Board, p. 10-26) indicates that the per-lane capacity of a freeway facility is

reduced when a lane closure is initiated. In the research, several freeway lane closure locations were

studied to evaluate the capacity under closed conditions. It was found that, on average, the capacity of a

mainline freeway segment with a lane closed is 1,600 vphpl.

Studies by the California Department of Transportation (CalTrans) and CDOT Region 2 indicate that

freeway capacity during a lane closure depends upon the type of work being completed. Paving and

milling operations have a much lower capacity than other types of construction activities. To develop

conservative allowed closure hours for this Strategy, a lane closure scenario was analyzed for freeways

based on a paving operation. The lane closure capacity of a mainline freeway facility is 1,100 vphpl when

performing paving or milling operations. A delay threshold of 10 minutes was used for freeway

segments. If the average delay with a lane closure exceeded this threshold a lane closure would not be

allowed during that time period. The hourly traffic volumes along each section of mainline freeway were

compared by direction with the estimated lane-closed capacity to determine an appropriate schedule for

lane closures.

Sequential freeway segments with identical characteristics, such as number of lanes, grade, and direction,

should all have the same capacity, even though they may serve different traffic volumes. In these

instances, the capacity of all the sequential segments is dictated by the segment that has the highest

counted hourly volume.

Freeway Analysis

A spreadsheet implementation of arrival / departure curves was formulated to automate the calculation

of average delay induced by a lane closure along each multi-lane highway section. The spreadsheet

enables the user to choose lane closure schedules with average delay values less than 10 based on

calculated hourly traffic volumes. Initial closure schedules were selected that have the fewest restricted

hours while providing the smallest average delay during closure. Additional adjustments were made to

these schedules to provide at least two consecutive hours of closure or restriction. This allows

meaningful construction/maintenance activity to be completed or excess vehicle queues to clear.

Transportation Engineering literature documents the use of arrival and departure curves to calculate

vehicle delays and queues. The methodology outlined in the book Fundamentals of Traffic Engineering

(May 1990, pp. 346-349) uses a plot depicting cumulative vehicle arrivals at and departures from a given

location over the course of 24 hours. For this analysis, the 24-hour traffic count information was used to

plot cumulative arrivals, and the roadway vehicle capacities discussed previously were used to formulate

cumulative departure curves.

Figure 6 provides a sample plot of arrivals and departures. This plot corresponds to a particular

direction of a state highway segment between the hours of 8:00 AM and 2:00 PM on a typical weekday.

The curves become separated when the demand/arrival rate, represented by the blue curve, exceeds

capacity, creating over-saturated conditions. The departure rate, represented by the red curve, is

reduced to the capacity of the partially closed highway between 9:00 AM and 12:00 PM. The curves

reconnect when capacity is sufficient to meet the demand. This can occur if the vehicle arrival rate

decreases (demand is reduced) or if the capacity of the highway increases (the closed lane is reopened).

In the sample plot shown on Figure 6, this occurs at 1:00 PM.

Region 4 Lane Closure Strategy, 4

Ed.

Page 15

At any point, the delay of an individual vehicle can be identified graphically as the horizontal distance

between the arrival (blue) and departure (red) curves. As shown on Figure 6, the number of vehicles

that experience delay is represented by the vertical distance between the curves. The shaded area

between the curves is the total delay in vehicle-hours. The average delay can be calculated by dividing

this area by the number of vehicles serviced during the period of over-saturation. The delay is averaged

for the total time during which over-saturated conditions persist as a result of the lane closure. An

average delay is calculated for each over-saturated period. If this average delay remains below 10

minutes, the closure is allowed. As shown on Figure 6, the calculated delay resulting from the sample

case is 6 minutes per vehicle.

C. Freeway A nalysis Results

The lane closure schedule tables in Appendix C, Appendix D, and Appendix E present, in detail,

allowable closure hours for all freeway segments in Region 4. Freeway segments have been divided at

interchanges where significant AADT changes occur or where lane geometry changes.

Figure 6

Sample Arrival/Departure Curves

CDOT NPS TO21 R4 LCS Completion 17-009-21 03/24/20CDOT NPS TO21 R4 LCS Completion 17-009-21 03/27/20

Example State Highway Arrivals and Departures

22400

23000

23600

24200

24800

25400

26000

7:00 PM 8:00 PM 9:00 PM 10:00 PM

End of Hour

Cumulative # Vehicles

Arrivals

Departures

Average Delay =

Shaded Area / No. of Vehicles Delayed =

3.0 minutes / vehicle

Maximum

Vehicle Delay (hr.)

Shaded Area = Total Delay

(veh.-hrs.)

Maximum

Queue Length (veh.)

Region 4 Lane Closure Strategy, 4

Ed.

Page 17

IV. Multi-Lane Highway Analysis

The multi-lane analysis methodology was developed to create lane closure schedules for state highway

segments within the Region that consist of three or more lanes. Roads maintained by CDOT Region 4

include approximately 540 miles of multi-lane arterial segments. US Highways 6, 34, 36, 85, and 287, and

385 sections and State Highways 1, 7, 14, 52, 66, 71, 86, 93, 119, 138, 157, 170, 257, and 392 include

multi-lane arterial sections.

A. Data Collection and Synthesis

Traffic data for multi-lane arterial facilities in Region 4 were gathered from ATR information as well as

individual spot counts from the CDOT OTIS database. The ATR data was used to develop seasonal and

day-of-week factors, while spot counts provided segment AADT, truck volumes, and hourly

distributions. All these tools were used to calculate hourly traffic volumes for each multi-lane arterial

highway segment.

Some segments did not have ATR locations to determine seasonal and day-of-week factors. Data from a

nearby ATR was used as a representative.

Weekend hourly counts were only provided at ATR locations. Segments without ATRs were assigned

to nearby ATRs to determine a weekend hourly distribution.

B. Analysis Methodology

Delay Threshold

As with the Freeway Analysis procedure, the closure of a lane on a multi-lane highway segment reduces

roadway capacity and can create a bottleneck for traffic. To determine when a lane closure along a

multi-lane highway segment would be appropriate, it is necessary to determine times of day at which a

lane closure would reduce the roadway capacity to a point where demand would exceed capacity,

creating a bottleneck and causing delay to vehicles. Times during which the implementation of a lane

closure induced an average vehicle delay in excess of 10 minutes for the duration of the bottleneck are

eliminated as potential closure times. For these analyses, delay was defined as the increase in travel time

encountered during a lane closure compared to the estimated travel time during free-flow conditions.

The average delay value of 10 minutes per vehicle was selected as a suitable delay threshold based on a

review of prevalent practices around the country and internal discussions within CDOT. An average

delay value of 10 minutes per vehicle provides an appropriate balance between delays to the traveling

public and the cost of construction and maintenance.

Lane closures implemented in accordance with the allowable hours included in this strategy are

anticipated to cause delay for drivers. The effects of this delay, however, would be softened by the

availability of alternate routes and detours to get around the closed portion of roadway. By including

delay tolerances in these calculations, the restricted hours in the LCS account for the presence of

alternate routes and detours.

Capacity Values

To calculate the delay caused by a closure-induced bottleneck, it is necessary to determine a capacity

value for each multi-lane highway section or group of sections being analyzed. Many factors influence the

per-lane capacity of a multi-lane highway, including the composition of vehicular traffic and the green

time allocated to the highway at signalized intersections.

Region 4 Lane Closure Strategy, 4

Ed.

Page 18

According to the HCM, the “ideal saturation flow rate” for an arterial facility is 1,900 passenger cars per

hour per lane (pcphpl). Research conducted by the Denver Regional Council of Governments on

saturation flow rates throughout the Denver metropolitan area concludes that 1,900 pcphpl is an

appropriate value for multi-lane highways under typical operating conditions and can also be used for

multi-lane highways in other parts of the state. This ideal flow rate is reduced to account for factors

such as the presence of heavy vehicles in the traffic stream and signalized intersections. Accounting for

these factors, the HCM estimates that the capacity of a typical arterial facility is 850 vphpl (vehicles per

hour per lane). Therefore, an estimated capacity of 850 vphpl was used as a baseline capacity assumption

for the development of this LCS.

This capacity, however, was adjusted upward in some cases to account for locations where the state

highway facility is given a greater than typical allocation of green time. Such a condition is reflected in the

traffic count information when the counted traffic volume at a given location exceeds 850 vphpl. At

locations where the actual counted traffic volume exceeded 850 vphpl, the capacity value was adjusted

upward to reflect the counted traffic volume.

Sequential multi-lane highway segments with identical characteristics, such as number of lanes, grade,

and direction, should all have the same capacity, even though they may serve different traffic volumes. In

these instances, the capacity of all the sequential segments is dictated by the segment that has the

highest counted hourly volume.

Four- Plus- Lane Highway Analysis

As with the freeway closure analyses, a spreadsheet implementation of arrival / departure curves was

formulated to automate the calculation of average delay induced by a lane closure along each arterial

section. The spreadsheet enables the user to choose lane closure schedules with average delay values

less than 10 based on calculated hourly traffic volumes. Initial closure schedules were selected that have

the fewest restricted hours while providing the smallest average delay during closure. Additional

adjustments were made to these schedules to provide at least two hours consecutive hours of closure

or restriction. This allows meaningful construction/maintenance activity to be completed or excess

vehicle queues to clear.

Three- Lane Highway Analysis

A lane closure along a three-lane roadway segment creates a two-lane operating condition. This

condition was analyzed along each three-lane segment in Region 5 to develop restricted closure hours

along three-lane segments. A capacity was estimated for each based on a two-lane highway analysis

methodology summarized in the HCM – approximately 3,200 passenger cars per hour. The capacity was

established as the traffic volume threshold between Level of Service (LOS) E and LOS F and was

reduced to account for driver rubbernecking passing the work zone to 70 percent of the base capacity,

or about 2,200 passenger cars per hour. Rather than using delay thresholds, closures on three-lane

facilities are allowed simply when the combined hourly volume in both directions is less than the

reduced capacity of the highway segment.

C. Multi- Lane Analysis Results

The lane closure schedule tables in Appendix C, Appendix D, and Appendix E present, in detail,

allowable closure hours for all multi-lane highway segments in Region 4. Highway segments have been

divided at intersections with significant AADT changes or locations where lane geometry changes.

Region 4 Lane Closure Strategy, 4

Ed.

Page 19

V. Two-Lane Highway Analysis

A. Data Collection and Synthesis

As with freeways and multi-lane highways, traffic data for two-lane roadways in Region 4 were gathered

from ATR information as well as individual spot counts from the CDOT OTIS database. ATR data was

used to develop seasonal and day-of-week factors, while spot counts provided segment AADT, truck

volumes, and hourly distributions. All these tools were used to calculate hourly traffic volumes for each

two-lane highway segment.

Some two-lane highways did not have ATR locations available along them to determine seasonal and

day-of-week factors. Data from a nearby ATR was used to represent conditions at such locations.

Weekend hourly counts were only provided at ATR locations. Segments without ATRs were assigned

to nearby ATRs to determine a weekend hourly distribution.

B. Capacity Analysis

Patterns of Operations

Lane closures on two-lane facilities are unique in that only one lane is available to handle traffic. This

generally means flaggers must be used at each end of the closure to alternate the direction of traffic. The

capacity of the detour is related to the length of the closure. A longer detour will have less capacity

because traffic in each direction takes longer to clear the work zone. Based on discussions with Region 4

Traffic Staff, it was confirmed that three typical work zone lengths would be analyzed: less than 0.5-mile,

1.0- mile, and 3.0-mile.

Capacity Values

The two-lane analysis is based on capacities for various closure lengths outlined in the Workzone Traffic

Analysis Guide (Oregon Department of Transportation, February 2005). This document identifies hourly

capacities of one-lane, bi-directional sections with flagger control. Capacities are calibrated for closure

lengths 3.0 miles, 1.0 mile, and 0.5 mile. A conversation with ODOT Staff responsible for developing the

capacities indicated that a capacity for 0.5-mile closures was developed after the document was

published. Table 3 summarizes capacity values adapted from the Oregon DOT information for use in

the LCS.

Table

3 . Closure Capacity Values for Two- Lane Highways

Calibrated Closure

Length

Applicable

Closure Lengths

Hourly Capacity

(Passenger-Car-Equivalents per Hour)

3.0 miles

†

> 1.0 mile 400 PCE/hr

1.0 mile > 0.5 mile to 1.0 mile 750 PCE/hr

0.5 mile ≤ 0.5 mile 900 PCE/hr

†

Value not provided by Oregon DOT information; based on a linear extrapolation from provided capacities.

The ODOT capacity values were developed based on a series of technical calculations supported by

field observations conducted at construction sites. These values have a significant basis in actual field

experience in combination with technical calculations. Comprehensive field evaluations have not been

performed for such closures in Colorado, but Region 4 Traffic Section Staff indicated that field

Region 4 Lane Closure Strategy, 4

Ed.

Page 20

experience with flagging operations on Colorado projects supported capacity values similar to the

ODOT values.

Providing the capacity values in Passenger Car Equivalents (PCE) allowed the specific inclusion of truck

percentages in lane closure schedule calculations. Based on information in the HCM, a PCE of 1.5 or 2.5

was assigned to each 2-lane highway in Region 4. The higher PCE of 2.5 was assigned to segments

carrying and AADT of more than 5,000 vehicles per day and/or at least 10 percent trucks, which

comprises the majority of 2-lane segments within the west portion of Region 4.

The PCE of 1.5 was assigned to 2-lane highways carrying below 5,000 vehicles per day and less than 10

percent trucks. Oregon DOT guidance states that higher PCE values are appropriate for roadways

carrying higher truck percentages and/or roadways on hilly terrain.

C. Analysis Methodology

To identify allowable lane closure hours on two-lane highways, hourly PCE volumes were determined

for each highway segment and compared to the hourly capacity for each closure length category. A

spreadsheet implementation of 0.5-mile, 1.0-mile, and 3.0-mile closure capacities was formulated to

automate the calculation of hourly capacities. The spreadsheet enables the user to input an hourly

distribution of traffic and compare the resulting hourly volumes to the allowable capacity. Each hour is

then evaluated (yes or no) whether it is appropriate for closure. This procedure was followed for both

weekday and weekend volumes in Spring/Summer and Fall/Winter seasons. The result of the calculations

can indicate that specific times should be restricted from lane closures or that no restrictions are

applicable.

D. Two-Lane Analysis Results

The lane closure schedule tables in Appendix C, Appendix D, and Appendix E present, in detail,

allowable closure hours for all two-lane highway segments in Region 4. Highway segments have been

divided at locations where significant AADT changes occur or where lane geometry changes.

Sections were divided where lane geometry changes or daily traffic volumes change significantly. It is

important to note that some sections are shorter than the closure lengths of 0.5, 1.0, and 3.0 miles.

When proposed lane closures will overlap such sections, it is recommended that the segment with the

fewest hours available for closure be implemented.

Region 4 Lane Closure Strategy, 4

Ed.

Page 21

VI. Adjustments to Allowable Lane Closure Hours

Per the request of Region 4 Staff and based on review comments received from CDOT and local agency

representatives, some allowed closure hours were manually adjusted to reflect particular conditions and

ensure consistency. Adjustments made included allowing or disallowing closures during particular time

periods or closure lengths. These adjustments included:

 All lane closures along I-25 south of the Mountain Vista Drive Interchange should be allowed at

night only, beginning no earlier than 9 PM and ending no later than 5 AM.

 Closures along the Diagonal Highway (SH 119 between Boulder and Longmont) and SH 157

should only be allowed during non-peak hours.

 All lane closures along US 287 through Old Town Fort Collins (Laurel Ave to Mountain Ave)

should be allowed at night only, beginning no earlier than 9 PM and ending no later than 5 AM.

 All state highways in Estes Park should only be closed at night during the Spring/Summer season.

 All state highways within Greeley, Loveland, Longmont, and Boulder should only be closed

during non-peak hours during the Spring/Summer season.

APPENDIX A

STRATEGY USE SPECIFICATIONS

Region 4 Lane Closure Strategy, 4

Ed.

Page A- 1

APPENDIX A. LANE CLOSURE STRATEGY

USE SPECIFICATIONS

Closure Implementation Process

The following steps should be followed to analyze, communicate, and document a proposed lane

closure:

Step 1: Review closure tabulation (Appendix C, Appendix D, and Appendix E) to determine the

appropriate allowable closure hours.

Step 2: Analyze a specific closure that is necessary to determine if there are any unique circumstances

that will warrant modification(s) to the basic closure schedule. These circumstances may include, but are

not limited to:

 Temporary lane closures necessitated by public safety emergencies which supersede the

allowable hours identified in this LCS

 Night-time temperatures, noise restrictions (based on adjacent land use or city/town ordinances

included in

Appendix B), material supply limitations, etc.

 Nature of required construction (i.e., blasting work may be completed only during daylight

hours)

 Special or seasonal events

 Potential restrictions for oversize vehicles

Any variances from the basic closure schedule will first require approval from the Region Traffic

Operations Engineer. Closures over multiple highway segments within a single project should be

reviewed and a uniform closure time should be implemented. All modifications to the basic closure

schedule must be documented.

Step 3: Notify the Region Traffic Operations Engineer or Traffic Engineer of the closure and any

requests for variance.

Based on the extent and duration of the proposed closure, additional notifications should be considered.

Information may be distributed to:

 CDOT Public Relations Office

 Statewide Traffic Operations Center (TOC) for possible display on permanent Variable Message

Signs (VMS) located upstream of the closure

 Local media outlets (including newspapers, radio and television stations, etc.)

 Emergency response agencies (State Patrol, Sheriff’s Office, Fire, Paramedics)

Step 4: Place closure documentation in the project file.

Region 4 Lane Closure Strategy, 4

Ed.

Page A- 2

Special Events

The occurrence of special events will affect traffic conditions along state highway facilities. The lane

allowable lane closure schedules outlined in this LCS are not intended to apply to special event traffic

control. When the schedule for a special event is known, construction- or maintenance-related lane

closures should not be scheduled from two hours before the event until one hour after the event.

Variance Requests

Figure 3 and Figure 4 document the process for requesting a variance from the hours allowed in this

LCS.

Emergency Situations

This LCS is intended for application to planned lane closures, not lane closures necessitated by public

safety emergencies. Temporary lane closures required in emergency situations are permitted at all

times.

Updates to the Strategy

To account for future changes in traffic volumes and patterns, the LCS should be updated every three

years. This 4

Edition of the LCS is based on Year 2018 traffic volumes and was completed in 2020.

Therefore, the next update will occur in 2023.

APPENDIX B

LOCAL NOISE ORDINANCES

egion 4 Lane Closure Strategy, 4

Ed.

Appendix B

APPENDIX B. LOCAL NOISE ORDINANCES

CITY OF BOULDER

NOISE INFORMATION

5/12/2020 Boulder, CO Municipal Code

(a)

(1)

(2)

(3)

(b)

(1)

5-9-3. - Exceeding Decibel Sound Levels Prohibited.

No person shall:

Operate any type of vehicle, machine, or device;

Carry on any activity; or

Promote or facilitate the carrying on of any

activity, which makes sound in excess of the level

specified in this section.

Sound from any source, other than a moving vehicular

source located within the public right of way, shall not

exceed any of the following limits for its appropriate

zone:

The sound limits prescribed by this section are set

forth in the following table for the zoning district

within the following use classifications in

Section

9-5-2, "Zoning Districts," B.R.C. 1981:

Zoning District of

the Property on

Which the Sound

is Received

Maximum

Number of

Decibels

Permitted from 7

a.m. until 11 p.m.

of the Same Day

Maximum

Number of

Decibels

Permitted from

11 p.m. until 7

a.m. of the

Following Day

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(2)

(A)

(B)

(C)

(3)

(A)

Residential 55 dBA 50 dBA

Mixed use and

other

65 dBA 60 dBA

Industrial 80 dBA 75 dBA

Sound from construction work for which a

building permit has been issued:

During the hours of 7 a.m. to 5 p.m., sound

for work of any type shall be deemed

received in an industrial zoning district;

During the hours of 5 p.m. until 9 p.m.,

sound from light construction work received

in a residential zone shall be deemed

received in a commercial zoning district; and

Under no circumstances shall amplified

sound be considered as construction work

activity.

Sound from a source regulated by this subsection:

Sound from a source on private property

shall be measured at or inside the property

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(B)

(C)

(c)

(d)

(1)

line of property other than that on which the

sound source is located;

Sound from a source on public property may

be measured on that receiving property so

long as the measurement is taken at least

twenty-five feet from the source, or it may be

measured at or inside the property line of

receiving property other than the public

property on which the sound source is

located;

For the purposes of this paragraph, a

leasehold shall be deemed a property of the

lessee, and its boundary, other than a

boundary with adjacent property owned by

the lessee, shall be deemed a property line.

All sound measurements shall be made on a sound

level meter that meets ANSI specification S1.4-1974 for

Type I or Type II equipment. The manufacturer's

published indication of compliance with such

specifications is prima facie evidence of compliance

with this subsection.

It shall be a defense to a charge of violating this section

that:

The sound was made by an authorized emergency

vehicle when responding to an emergency or as

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(2)

(3)

(4)

(5)

(6)

(7)

otherwise authorized by law or acting in time of

emergency or by an emergency warning device

operated by a government;

The sound was made by the sounding of the horn

of any vehicle as a danger warning signal or by the

sounding of any warning device as required by

law;

The sound was made within the terms of a

fireworks display or temporary street closure

permit issued by the city manager, or was made

by the rendering of military honors at a funeral by

a military funeral honors detail;

The sound was made by an animal;

The sound was made within the terms and

conditions of a sound level variance granted by

the city manager;

The sound was made on property belonging to or

leased or managed by a federal, state, or county

governmental body other than the city and made

by an activity of the governmental body or by

others pursuant to a contract, lease, or permit

granted by such governmental body;

The sound was made by a police alarm device, if

the police alarm shuts off automatically after no

longer than ten minutes, by a fire alarm, or by an

[24]

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(8)

(9)

(e)

alarm system installed in a motor vehicle, if the car

alarm shuts off automatically after no longer than

five minutes;

The sound was made by snow removal equipment

equipped with a standard muffling system in good

repair while removing snow; or

The sound was made between the hours of 7 a.m.

and 9 p.m. by a lawn mower or gardening

equipment equipped with a standard muffling

system in good repair.

This section shall not be construed to conflict with the

right of any person to maintain an action in equity to

abate a noise nuisance under the laws of the state.

Ordinance Nos. 7522 (2007); 7831 (2012); 7965 (2014)

Footnotes:

--- (24) ---

Animal noises are covered in chapter 6-1, "Animals," B.R.C. 1981.

Boulder-5

CITY OF BROOMFIELD

NOISE INFORMATION

5/12/2020 Broomfield, CO Municipal Code

(A)

(B)

(C)

(D)

(E)

(F)

9-36-010 - Denitions.

In this chapter, unless the context otherwise requires, the following words and

phrases have the meanings indicated:

Continuous noise

means a steady, fluctuating, or impulsive noise

which exists, essentially without interruption, for a period of ten

minutes or more.

dB(A)

is the standard notation for the sound pressure level as

measured with a sound level meter using the A-weighting network.

Decibel

means a unit for measuring the volume of a sound,

equal to twenty times the logarithm to the base ten of the ratio of

the pressure of the sound measured to the reference pressure,

which is twenty micropascals (twenty micronewtons per square

meter).

Domestic power equipment

means any power equipment rated five

horsepower or less used for home or building repair or grounds

maintenance including, but not limited to, lawn mowers, garden

tools, snow blowers, and chain saws.

Impulsive noise

means a noise of short duration usually less than

one second, with an abrupt onset and rapid decay.

Industrial use

means any industrial use that must be permitted as a

use by special review in an I-2 or I-3 zone district. Industrial use

includes cement, concrete, lime, or gypsum manufacturing;

chemical plants; fertilizer manufacturing, manufacturing, assembly,

packaging, processing, storage, and distribution of raw vegetable

and animal products; manufacturing or storage of hazardous

materials, the development or operation of oil wells or gas wells,

recycling centers, temporary outdoor storage of rubbish, refuse,

waste, junk vehicles, or workshops.

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(G)

(H)

(I)

(J)

(A)

(B)

(1)

(2)

(3)

Muffler

means an apparatus consisting of a series of chambers or baff

designed for the purpose of transmitting gases while reducing sound e

from such apparatus.

Periodic noise

means a noise recurring at fixed intervals for a

period of ten minutes or more.

Public place

means any street, parking lot, city park, or sidewalk

adjoining a city park; any private property open to or used by the

general public for travel or parking; or any place used by persons

other than the owner or owner's agent without a special permit.

Sound

means an oscillation in pressure, stress, particle

displacement, and particle velocity which induce auditory sensation.

(Ord. 862 §1, 1989;

Ord. No. 2117 , § 3, 1-14-20)

9-36-020 - Noise prohibited.

It shall be unlawful for any person to make, or cause to be made, any

continuous, impulsive, or periodic noise within the city which:

Is of such unusual or exceptional character, intensity, or duration

that it disturbs, injures, or endangers the comfort, repose, health,

peace, or safety of any person or causes damage to any property;

Exceeds the levels shown on schedule 9-36A below:

These levels are based on the district in which the sound is

measured or perceived, regardless of the district in which the

sound originates.

Sound shall be measured at least twenty-five feet from the

source.

In any event, measurements may not be taken from property

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(C)

(D)

(A)

(B)

other than public places without permission of person in

possession or control of such property.

In an I-1, I PUD, or I-1 PUD zone district, is measured or perceived

beyond the boundaries of the lot on which the sound originates.

In an I-2, I-2 PUD, or GA zone district, is measured or perceived

beyond the boundaries of the district.

SCHEDULE 9-36A

NOISE LIMITS

District Time Period Maximum

Permissible

Levels

E-1, E-2, R-1, R-3,

R-5, PUD, R-PUD

7:00 a.m. until 10:00 p.m. of the

same day

55 dB(A)

10:00 p.m. until 7:00 a.m. of the

following day

40 dB(A)

A-1, B-1, B-2, A-

PUD, B-PUD, B-1

PUD, B-2 PUD

7:00 a.m. until 10:00 p.m. of the

same day

65 dB(A)

10:00 p.m. until 7:00 a.m. of the

following day

60 dB(A)

(Ord. 862 §1, 1989)

9-36-030 - Exceptions.

The maximum dB(A) specified in schedule 9-36A shall not apply to sound

from:

Any bell or chime from any building clock, school, or church;

Any siren, whistle, or bell lawfully used by emergency vehicles or

any other alarm system used in case of fire, collision, civil defense,

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(C)

(D)

(E)

(F)

(G)

(H)

(I)

police activity, or other imminent danger; provided, however, that

burglar alarms not terminating within twenty minutes after being

activated shall not be excepted;

Aircraft which are operated in accordance with federal laws or

regulations;

City-authorized or sponsored events including, but not limited to,

parades and fireworks displays;

Any domestic power equipment operated upon any residential,

commercial, industrial, or public premises between 7:00 a.m. and

10:00 p.m., provided that such equipment does not exceed eighty

dB(A);

Any temporary construction, meaning minor remodeling and

additions to existing homes, maintenance, or repair activities

between 7:00 a.m. and 10:00 p.m., provided that the noise from

such activities does not exceed eighty-eight dB(A);

Activities directly connected with the abatement of an emergency;

Golf course greens maintenance activities involving motorized

machinery between the hours of 5:00 a.m. and 7:00 a.m., from May

1 through and including September 30, provided that noise from

such motorized machinery does not exceed seventy-four dB(A); and

Residential construction, not including minor remodeling or

additions to existing homes, within 500 feet of occupied residences,

which shall be performed only from 7:00 a.m. until 7:00 p.m.

Monday through Friday, and 9:00 a.m. to 6:00 p.m. Saturdays,

Sundays, and holidays, unless otherwise provided in the city council

resolution approving the project.

(Ord. 862 §1, 1989; Ord. 1249 §1, 1997; Ord. 1794 §1, 2005)

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9-36-040 - Trash compaction and collection.

The operation of compactor trucks, and the loading and unloading of trash

shall be subject to the maximum level of eighty-eight dB(A). No person shall

engage in any trash, rubbish, or garbage collection activity within a residential

district between the hours of 10:00 p.m. and 7:00 a.m. of the following day.

(Ord. 862 §1, 1989)

9-36-050 - Exhaust; muers.

No person shall discharge the exhaust of any steam engine, internal

combustion engine, air compressor equipment, motor boat, motor vehicle, or

other power device which is not equipped with a properly maintained exhaust

system with a muffler or spark arrestor. It is unlawful for any person to operate a

muffler or exhaust system using a cut-out, bypass, or other similar device.

(Ord. 862 §1, 1989)

9-36-070 - Use of sirens and red lights restricted.

It is unlawful for any person to carry or use upon any vehicle other than

police, fire department, or emergency vehicles, any gong, siren, whistle, or red

light similar to that used on police, fire department, or emergency vehicles.

(Ord. 862 §1, 1989)

Broomfield-5

TOWN OF ESTES PARK

NOISE INFORMATION

5/12/2020 Estes Park, CO Municipal Code

Chapter 8.06 - Noises

Footnotes:

--- (1) ---

Editor's note— Ord. No.

24-17 §1(Exh. A), adopted Oct. 24, 2017, amended Ch. 8.06, §§8.06.010

—8.06.070 in its entirety to read as herein set out. Former Ch. 8.06, pertained to similar subject

matter, and derived from Ord. No.

15-16 §1(Exh. A), adopted May 24, 2016.

8.06.010 - Denitions.

The following words, terms and phrases, when used in this Chapter, shall have the

meanings ascribed to them in this Section, except where the context clearly indicates a

different meaning:

Amplified outdoor sound

means sound modified or amplified by the use of

sound equipment on any premises not fully enclosed by permanent walls and a

roof.

Domestic power equipment

means any power equipment rated five (5)

horsepower or less used for home or building repair or grounds maintenance,

including but not limited to lawn mowers, garden tools, snow blowers and chain

saws.

Muffler

means an apparatus consisting of a series of chambers or baffle plates

designated for the purpose of transmitting gases while reducing sound emanating

from such apparatus.

Sound equipment

means a loudspeaker, public address system, amplification

system, or other sound producing device.

Unreasonable noise

shall mean any excessive or unusually loud noise or sound

with intensity or duration that disturbs the peace, health, comfort, repose or quiet

of a reasonable person of normal sensitivities.

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(a)

(b)

(1)

(2)

(3)

(4)

(c)

(1)

Vehicle

means any machine propelled by power other than human power,

designed to travel along the ground by use of wheels, treads, runners or slides to

transport persons or property or pull machinery and includes, without limitation,

automobile, airplane, truck, trailer, motorcycle, motor scooter, tractor, buggy and

wagon.

(Ord. No.

24-17 §1(Exh. A), 10-24-2017; Ord. No. 19-18 §1(Exh. A), 11-27-2018)

8.06.020 - Noise prohibited.

No person shall make, continue or cause to be made or continued any

unreasonable noise; and no person shall knowingly permit such noise

upon any premises owned or possessed by such person or under such

person's control. For purposes of this Section, Law Enforcement or Code

Enforcement personnel are empowered to make a prima facie

determination as to whether a noise is unreasonable.

In determining whether noise is unreasonable, the following may be

considered:

The time of day;

The size of any gathering of persons creating or contributing to the

noise;

The presence or absence of sound equipment; and

Any other factors tending to show the magnitude and/or disruptive

effect of the noise.

With regard to vehicles, the determination of unreasonable noise, in

addition to the previously stated factors shall include, but not be limited

to:

The continuous or repeated sounding of any horn, alarm or signal

device of a vehicle, except where an actual emergency or danger

exists. For the purposes of this subsection, "continuous" shall mean

continuing for an unnecessary or unreasonable period of time.

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(2)

(1)

(2)

(3)

(4)

(5)

(6)

The operation of any vehicle in a manner which causes unreasonable n

of unnecessary rapid acceleration, deceleration, revving the engine or

(Ord. No.

24-17 §1(Exh. A), 10-24-2017; Ord. No. 19-18 §1(Exh. A), 11-27-2018)

8.06.030 - Restrictions on amplied outdoor sound.

It shall be unlawful for any person to make, cause to be made or to permit

amplified outdoor sound upon any premises possessed or controlled by such person

where such sound occur between the hours of 10:00 p.m., through 10:00 a.m., of the

next day except that on Friday and Saturday nights amplified outdoor sound is

permitted until 11:00 p.m.

(Ord. No.

24-17 §1(Exh. A), 10-24-2017; Ord. No. 19-18 §1(Exh. A), 11-27-2018)

8.06.040 - Exceptions.

The prohibitions set forth in Subsection

8.06.020(1) shall not apply to sound from:

Any bell or chime from any building, clock, school or church;

Any siren, whistle, or bell lawfully used by emergency vehicles or

any other alarm system used in case of fire, collision, civil defense,

police activity or other imminent danger;

Aircraft which are operated in accordance with federal laws or

regulations;

Town authorized or sponsored events including, but not limited to,

parades, fireworks displays, concerts, and events at Stanley Park,

Bond Park, or Performance Park;

Any domestic power equipment, except as provided within this

subsection, operated upon any residential, commercial, industrial

or public place between 7:00 a.m. and 9:00 p.m.;

Any construction, maintenance, or repair activities between 7:00

a.m. and 9:00 p.m.;

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(7)

(8)

(9)

Activities directly connected with the abatement of an emergency;

Noise from snow blowers, snow throwers and snow plows when

operated with a muffler for the purpose of snow removal;

Noise generated from golf course maintenance equipment.

(Ord. No.

24-17 §1(Exh. A), 10-24-2017; Ord. No. 19-18 §1(Exh. A), 11-27-2018)

8.06.050 - Exhaust, muers.

No person shall discharge the exhaust of any steam engine, internal combustion

engine, air compressor equipment, motor boat, or other power device which is not

equipped with a properly maintained exhaust system with a muffler or a spark arrestor.

It is unlawful for any person to operate a muffler or exhaust using a cutout, bypass or

other similar device.

(Ord. No.

24-17 §1(Exh. A), 10-24-2017; Ord. No. 19-18 §1(Exh. A), 11-27-2018)

Estes Park-4

CITY OF FORT COLLINS

NOISE INFORMATION

5/12/2020 Fort Collins, CO Municipal Code

ARTICLE II. - NOISE

Sec. 20-21. - Denitions.

The following words and terms, and phrases, when used

in this Article, shall have the following meanings ascribed

to them in this Section:

Ambient sound level

shall mean the total sound pressure

level in the area of interest including the noise source of

interest.

A-weighting

shall mean the electronic filtering in sound

level meters that models human hearing frequency

sensitivity.

Background sound level

shall mean the total sound

pressure level in the area of interest excluding the noise

source of interest.

Code Compliance Inspector

shall mean an employee of

the City trained in the measurement of sound and

empowered to issue a summons for violations of

§ 20-23

and to issue variances pursuant to

§ 20-27.

Construction

shall mean any site preparation, assembly,

erection, repair, alteration or similar action, or demolition

of buildings or structures.

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(1)

dB(A)

shall mean the A-weighted unit of sound pressure

level.

Decibel [dB]

shall mean the unit of measurement for

sound pressure level at a specified location.

Emergency work

shall mean any work or action necessary

to deliver essential services including, but not limited to,

repairing water, gas, electric, telephone, sewer facilities,

or public transportation facilities, removing fallen trees on

public rights-of-way, or abating life-threatening

conditions.

Impulsive sound

shall mean a sound having a duration of

less than one (1) second with an abrupt onset and rapid

decay.

Motor vehicle

shall mean any vehicle that is propelled or

drawn on land by an engine or motor.

Muffler

shall mean a sound-dissipative device or system

for attenuating the sound of escaping gases of an internal

combustion engine.

Multi-use property

shall mean any distinct parcel of land

that is used for more than one (1) category of activity.

Examples include, but are not limited to:

A commercial, residential, industrial or public

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(2)

service property having boilers, incinerators,

elevators, automatic garage doors, air

conditioners, laundry rooms, utility provisions, or

health and recreational facilities, or other similar

devices or areas, either in the interior or on the

exterior of the building, which may be a source of

elevated sound levels at another category on the

same distinct parcel of land; or

A commercial building which has a residential use

located above, behind, below or adjacent to the

commercial use.

Noise disturbance

shall mean any sound originating from

or received within the City limits that (a) endangers the

safety or health of any person, (b) disturbs a reasonable

person of normal sensitivities, or (c) endangers personal

or real property.

Person

shall mean any individual, corporation, company,

association, society, firm, partnership, joint stock

company, the City or any political subdivision, agency or

instrumentality of the City.

Public right-of-way

shall mean any street, avenue,

boulevard, road, highway, sidewalk, alley or similar place

which is leased, owned or controlled by a governmental

entity.

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Public space

shall mean any real property or structures

thereon that is owned, leased or controlled by a

governmental entity.

Pure tone

shall mean any sound that can be judged as a

single pitch or set of single pitches by the Code

Compliance Inspector.

Real property line

shall mean either (a) the line, including

its vertical extension, that separates one (1) parcel of real

property from another, or (b) the vertical and horizontal

boundaries of a dwelling unit that is contained within a

multi-use building.

Sound level

shall mean the instantaneous sound pressure

level measured in decibels with a sound level meter set

for A-weighting on slow or fast integration speed.

Sound level meter

shall mean an instrument used to

measure sound pressure levels conforming to standards

as specified in ANSI Standard S1.4-1983 or the latest

version thereof.

Sound pressure level

shall mean twenty (20) multiplied by

the logarithm, to the base ten (10), of the measured

sound pressure divided by the sound pressure associated

with the threshold of human hearing, in units of decibels.

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(a)

(Code 1972, § 78-9; Ord. No. 154, 2001, 11-6-01; Ord. No. 071, 2004, §

1, 5-18-04; Ord. No. 084, 2008, § 3, 8-19-08)

Cross reference— Definitions and rules of construction generally,

§ 1-

Sec. 20-22. - Reserved.

Footnotes:

--- (1) ---

Editor's note— Section 1 of Ord. No. 084, 2008, adopted 8-19-08,

renumbered former § 20-22, Unreasonable noise, as § 17-129.

Sec. 20-23. - Maximum permissible noise levels.

A noise measured or registered in the manner provided

§ 20-24 from any source at a level which is in excess

of the dB(A) established for the time period and zoning

districts listed in this Section is hereby declared to be a

noise disturbance and is unlawful. When a noise source

can be identified and its noise measured in more than

one (1) zoning district, the limits of the most restrictive

zoning district shall apply.

Zoning Districts

Maximum Noise [dB (A)]

Areas zoned:

Low Density Residential (R-

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Urban Estate (U-E)

Foothills Residential (R-F)

High Density Mixed-Use

Neighborhood (H-M-N)

Low Density Mixed-Use

Neighborhood (L-M-N)

Medium Density Mixed-Use

Neighborhood (M-M-N)

Neighborhood Conservation

Low Density (N-C-L)

Neighborhood Conservation

Medium Density (N-C-M)

Neighborhood Conservation

Buer (N-C-B)

Public Open Lands (P-O-L)

River Conservation (R-C)

Transition (T)

7:00 a.m. to 8:00 p.m. 55

8:00 p.m. to 7:00 a.m. 50

Areas zoned:

Downtown Old City Center

(D)

Downtown Canyon Avenue

(D-C-A)

Downtown Civic Center (D-

C-C)

River Downtown

Redevelopment Commercial

(R-D-R)

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(b)

(c)

Community Commercial (C-

Community Commercial

North College (C-C-N)

Community Commercial

River (C-C-R)

Commercial North College

(C-N)

Neighborhood Commercial

(N-C)

Limited Commercial (C-L)

Harmony Corridor (H-C)

7:00 a.m. to 8:00 p.m. 60

8:00 p.m. to 7:00 a.m. 55

Areas zoned:

Employment (E)

7:00 a.m. to 8:00 p.m. 70

8:00 p.m. to 7:00 a.m. 65

Areas zoned:

Industrial (I)

7:00 a.m. to 8:00 p.m. 80

8:00 p.m. to 7:00 a.m. 75

If the noise source in question is a pure tone, the limits

set forth above shall be reduced by five (5) dB(A).

In multi-use buildings, when noise originates in one (1)

unit and is received in another unit within the same

building, the maximum dB(A) for such noise shall be the

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5/12/2020 Fort Collins, CO Municipal Code

(1)

(2)

(3)

same as the maximum dB(A) for the zoning district in

which the building is located.

(Code 1972, § 78-2; Ord. No. 9, 1998, 2-3-98; Ord. No. 154, 2001, 11-6-

01)

Cross reference— Zoning, annexations and development of land,

Article 4 of the Land Use Code — Zone Districts.

Sec. 20-24. - Classication and measurement of noise.

For the purposes of classifying any noise disturbance and

determining whether it is in violation of

§ 20-23, the

following test measurements and requirements shall be

applied; provided, however, that a violation of

§ 17-129

may occur without the following measurements being

made:

Noise shall be measured at a distance of at least

twenty-five (25) feet from a noise source located

within the public right-of-way, and if the noise

source is located on private property or public

property other than the public right-of-way, the

noise shall be measured at or within the property

boundary of the receiving land use.

The noise shall be measured on a sound level

meter.

No outdoor measurement shall be taken without a

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(1)

(2)

(3)

(4)

(5)

wind screen recommended by the sound level

meter manufacturer, or during periods when wind

speeds, including gusts, exceed fifteen (15) miles

per hour.

(Code 1972, § 78-3; Ord. No. 154, 2001, 11-6-01; Ord. No. 084, 2008, §

4, 8-19-08)

Sec. 20-25. - Exceptions.

The provisions of this Article shall not apply to:

Noise from emergency signaling devices;

Noise from agricultural activities;

The operation of aircraft or other activities which

are subject to federal law with respect to noise

control, and the generation of sound in situations

within the jurisdiction of the Federal Occupational

Safety and Health Administration;

Noise from domestic power tools and lawn and

garden equipment operated between 7:00 a.m.

and 8:00 p.m., provided that such tools or

equipment generate less than eighty-five (85)

dB(A) at or within any real property line of a

residential property;

Sound from church bells and chimes when a part

of a religious observance or service;

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(6)

(7)

(8)

(9)

(10)

Any tools or equipment used in construction,

drilling, earthmoving, excavating, or demolition,

provided that all motorized equipment used in

such activity is equipped with functioning mufflers,

and further provided that such work takes place

between 7:00 a.m. and 8:00 p.m.;

Noise from snow blowers, snow throwers and

snow plows when operated with a muffler for the

purpose of snow removal;

The City for noise emanating from any public

right-of-way;

Noise generated from golf course maintenance

equipment;

Noise generated by tools or equipment during

emergency operations or activities that are

reasonably necessary for the public health, safety

or welfare.

(Code 1972, § 78-4; Ord. No. 26, 1990, 4-3-90; Ord. No. 93, 1999, 6-15-

99; Ord. No. 154, 2001, 11-6-01)

Sec. 20-26. - Extraterritorial noise source.

If noise measured at a location within the City limits

exceeds the maximum permissible noise levels contained

§ 20-23 for the zoning district in which the noise is

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(1)

(2)

(a)

measured, and the source of the noise is located in an

unincorporated area of the County, the City shall have

jurisdiction to prosecute such noise violation provided

that:

The complainant has first sought enforcement of

any applicable county noise law or regulation and

the County has declined to initiate any court

proceedings to enforce said law or regulation, or

thirty (30) days have elapsed from the date of

filing the complaint with the County and no such

proceedings have been initiated; or

The person charged with a violation of the

County's law or regulation has been acquitted of

such charge, or such charge has been dismissed,

and the elements constituting a violation of the

County law or regulation are substantially

different than the elements constituting a

violation of

§ 20-23.

(Ord. No. 154, 2001, 11-6-01)

Sec. 20-27. - Variances.

Any person who owns or operates any stationary noise

source may apply to the Code Compliance Inspector for

a variance from one (1) or more of the provisions of this

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(1)

(2)

(3)

(4)

(5)

(6)

(b)

(c)

Article. Applications for a variance shall supply

information including, but not limited to:

The nature and location of the noise source for

which such application is made;

The reason for which the variance is requested,

including the hardship that will result to the

applicant, his/her client or the public if the permit

of variance is not granted;

The level of noise that will occur during the period

of the variance;

The section or sections of this Article for which the

variance shall apply;

A description of interim noise control measures to

be taken for the applicant to minimize noise and

the impacts occurring therefrom; and

A specific schedule of the noise control measures

that shall be taken to bring the source into

compliance with this Article within a reasonable

time.

Failure to supply the information required by the Code

Compliance Inspector shall be cause for rejection of the

application.

The Code Compliance Inspector may charge the

applicant a fee, in accordance with

§ 7.5-1 of this Code,

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(d)

(e)

(1)

(2)

(f)

(g)

(1)

to cover expenses resulting from the processing of the

variance application.

The Code Compliance Inspector may, at his or her

discretion, limit the duration of the variance, which shall

be no longer than one (1) year. Any person granted a

variance and requesting an extension of time shall

apply for a new variance under the provisions of this

Section.

No variance shall be approved unless the applicant

presents adequate proof that:

Noise levels occurring during the period of the

variance will not constitute a danger to public

health; and

Compliance with this Article would impose an

unreasonable hardship on the applicant without

equal or greater benefits to the public.

Under no circumstances shall the noise level of an

activity for which a variance is granted for a period of

time in excess of eight (8) hours exceed ninety (90)

decibels.

In determining whether to grant a variance, the Code

Compliance Inspector shall consider:

The character and degree of injury to, or

interference with, the public health and welfare

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(2)

(3)

(h)

(1)

(2)

(3)

(i)

(a)

and the reasonable use of property that is caused

or threatened to be caused;

The social and economic value of the activity for

which the variance is sought; and

The ability of the applicant to apply the best

practical noise control measures.

A variance may be revoked by the Code Compliance

Inspector if there is:

Violation of one (1) or more terms or conditions of

the variance;

Material misrepresentation of fact in the variance

application; or

Material change in any of the circumstances relied

on by the Code Compliance Inspector in granting

the variance.

Variance decisions may be appealed to the City

Manager by the applicant or any affected person.

(Code 1972, § 78-5; Ord. No. 154, 2001, 11-6-01)

Sec. 20-28. - Motor vehicle maximum sound levels.

No person shall operate or cause to be operated a

public or private motor vehicle or motorcycle on a

public right-of-way at any time in such a manner that

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5/12/2020 Fort Collins, CO Municipal Code

the sound level emitted by the motor vehicle or

motorcycle exceeds the levels set forth below:

Vehicles class

(GVWR)

Speed

limit

where

posted

35 mph

or less or

speed

limits

regulated

under

the Fort

Collins

Trac

Code

[sound

pressure

level

dB(A)]

Speed

limit

where

posted

greater

than 35

mph

[sound

pressure

level

dB(A)]

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Motor vehicles

with a

manufacturer's

gross vehicle

weight rating

(GVWR) of

10,000 pounds

(4,536 kg) or

more, or by

any

combination of

vehicles towed

by such motor

vehicle

86 90

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(b)

Any other

motor vehicle

or any

combination of

vehicles towed

by any motor

vehicle, to

include but not

to be limited to

automobiles,

vans, light

trucks or any

motorcycle

with a gross

vehicle weight

rating (GVWR)

less than

10,000 pounds

(4,536 kg)

80 84

No person shall operate or cause to be operated any

motor vehicle or motorcycle off a public right-of-way in

such a manner that the sound level emitted exceeds

the limits set forth in

§ 20-23. This Section shall apply to

all motor vehicles, whether or not duly licensed and

registered, including but not limited to commercial or

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5/12/2020 Fort Collins, CO Municipal Code

(c)

(d)

(e)

(a)

(b)

noncommercial racing vehicles, motorcycles, go-carts,

snowmobiles, amphibious crafts, campers and dune

buggies.

Noise shall be measured at a distance of at least

twenty-five (25) feet from the lane being monitored.

The noise shall be measured on a sound level meter.

No outdoor measurement shall be taken without a wind

screen recommended by the sound level meter

manufacturer, or during periods when wind speeds,

including gusts, exceed fifteen (15) miles per hour.

(Code 1972, § 78-7; Ord. No. 154, 2001, 11-6-01; Ord. No. 16, 2003, §

10, 2-18-03)

Cross reference— Vehicles and traffic,

ch. 28; fort collins traffic code.

Sec. 20-29. - Violations and penalties.

Any person who violates any provision of this Article,

upon conviction, shall be subject to the penalty in

§ 1-

15.

Violation of any provision of this Article shall be cause

for a summons to be issued by authorized enforcement

officials according to adopted procedures.

(Code 1972, § 78-8(A), (B); Ord. No. 154, 2001, 11-6-01)

Cross reference— General penalty,

§ 1-15.

Fort Collins-18

CITY OF GREELEY

NOISE INFORMATION

5/12/2020 Greeley, CO Municipal Code

Article II - Noise

Chapter 9.20 - Denitions

9.20.010 - Applicability.

The definitions set out at this Chapter shall apply in the

interpretation and enforcement of this Article II, except as otherwise

provided in this Article II.

(Prior code §15-130(part))

9.20.020 - Reserved.

9.20.030 - Commercial purpose.

Commercial purpose

means and includes the use, operation or

maintenance of any sound amplifying equipment for the purpose of

advertising any business, any goods or any services or for the purpose

of attracting the attention of the public to, advertising for or soliciting

the patronage of customers to or for, any performance, show,

entertainment, exhibition or event or for the purpose of

demonstrating such sound equipment.

(Prior code §15-130(2))

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9.20.040 - Commercial district.

Commercial district

means any parcel of land zoned with any

commercial classification pursuant to the Zoning and Land Use

Chapter of this Code.

(Ord. 23, 2012 §1; Ord. 04, 2008 §2; Prior code §15-130(3))

9.20.050 - Construction activities.

Construction activities

means any and all activity incidental to the

erection, demolition, assembling, altering and installing or equipping

of buildings, structures, roads or appurtenances thereto, including

land clearing, grading, excavating and filling.

(Prior code §15-130(4))

9.20.060 - Device.

Device

means any mechanism which is intended to produce or

which actually produces sound when operated or handled.

(Prior code §15-130(5))

9.20.070 - Dynamic braking device.

Dynamic braking device

means a device, used primarily on trucks,

for the conversion of the motor from an internal combustion engine to

an air compressor for the purpose of braking.

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(Prior code §15-130(6))

9.20.080 - Emergency work.

Emergency work

means work made necessary to restore property

to a safe condition following a public calamity or work required to

protect persons or property from an imminent exposure to danger or

potential danger.

(Prior code §15-130(7))

9.20.090 - Industrial district.

Industrial district

means any parcel of land zoned with any

industrial classification pursuant to the Zoning and Land Use Chapter

of this Code.

(Ord. 23, 2012 §1; Prior code §15-130(8))

9.20.100 - Motor vehicles.

Motor vehicles

means any vehicle such as, but not limited to, a

passenger vehicle, truck, truck-trailer, trailer or semitrailer propelled

or drawn by mechanical power and shall include motorcycles,

snowmobiles, minibikes, go-carts and any other vehicle which is self-

propelled.

(Prior code §15-130(9))

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9.20.110 - Muer.

Muffler

means an apparatus consisting of a series of chambers or

baffle plates designed for the purpose of transmitting gases while

reducing sound emanating from such apparatus.

(Prior code §15-130(10))

9.20.120 - Noncommercial purpose.

Noncommercial purpose

means the use, operation or

maintenance of any sound amplifying equipment for other than a

commercial purpose.

Noncommercial purpose

means and includes,

but shall not be limited to, philanthropic, political, patriotic and

charitable purposes.

(Prior code §15-130(11))

9.20.125 - Noise.

Noise

means any sound including but not limited to sounds that

are shrill, impulsive, continuous, rhythmic, or periodic, or that create

vibrations.

(

Ord. No. 3, 2015, § 1(Exh. A), 1-20-2015 )

9.20.130 - Plainly audible.

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Plainly audible

means any sound that can be detected and clearly

comprehended by a person using their own unaided hearing faculties.

(

Ord. No. 3, 2015, § 1(Exh. A), 1-20-2015; Prior code §15-130(12))

9.20.140 - Residential district.

Residential district

means any parcel of land zoned with any

residential classification, or any parcel of land zoned with a residential

PUD classification pursuant to the Zoning and Land Use Chapter of

this Code.

(Ord. 23, 2012 §1; Prior code §15-130(13))

9.20.150 - Sound amplifying equipment.

Sound amplifying equipment

means any machine or device for the

amplification of a human voice, music or any other sound, or by which

the human voice, music or any other sound is amplified.

(Prior code §15-130(14))

9.20.160 - Reserved.

9.20.170 - Technical terminology; denitions by reference.

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(a)

(b)

All technical terminology used in this Article II, unless the context

otherwise requires, shall be defined in accordance with American

National Standards Institute (ANSI) publication S1.1-1960, revised

1971, or successor publications of ANSI or its successor bodies.

(Prior code §15-130(16))

Chapter 9.24 - Limitations Generally

9.24.010 - Unlawful noise generally; designated.

The making or creating of any noise emitted at levels

that annoy, disturb, injure or endanger the comfort,

repose, health, peace or safety of a reasonable person

of normal sensitivities, is unlawful. Noises described in

Chapter 9.28 and Sections

9.32.060 and 9.32.070 of this

Code are presumptively unlawful.

Stationary or moving rail vehicles shall comply with the

provisions of this Article II except as provided for in the

United States Noise Control Act of 1972 (Public Law 92-

574).

(

Ord. No. 3, 2015, § 1(Exh. A), 1-20-2015; Ord. 23, 2012 §1; Ord. 7, 2006

§1; Prior code §15-131)

9.24.020 - Reserved.

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(1)

(2)

(3)

(4)

9.24.030 - Reserved.

9.24.040 - Exemptions designated; special permit conditions.

Nothing in Article II of this Title shall be construed to apply to or

restrict any activity conducted by any person for the safety or

protection of life or property in an emergency situation, nor shall the

provisions of the division apply to:

Authorized emergency vehicles, as defined in

Section 20-25.2(b) of the Traffic Code, adopted in

Section 11.04.030 of this Code, when such

emergency vehicles are responding to, but not

returning from, an emergency call, unless the

return is of an emergency nature;

Any bell or chimes from any church, clock or

school;

Authorized construction activity of the City, as

approved by the Director of Public Works or his or

her designees for emergency construction or

necessary street repair; or

The use of heavy equipment for the removal of

snow from private parking lots within twenty-four

(24) hours of the termination of the snowfall.

(Ord. 23, 2012 §1)

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(a)

(b)

(c)

(d)

9.24.050 - Penalties; repeated oenses.

Any person found guilty after trial or plea of: guilt;

Alford; nolo contendere; or deferred sentence plea to

any provision of

Section 9.24.010 shall be fined not less

than one thousand dollars ($1,000.00), plus any

additional penalties assessed pursuant to

Chapter 1.32

of this Code, except as provided in Subsection (b)

below.

A fine may be reduced to two hundred fifty dollars

($250.00) if the guilty party agrees to attend City-

sponsored training related to neighborhood conduct

and perform fifteen (15) hours of community service

within the City, as so approved by the Municipal Court,

within three (3) months following his or her sentencing.

A repeat offense that occurs within three hundred sixty-

five (365) days from the date of a finding of guilt

pursuant to this Section shall cause the full amount of

the penalty as may be modified under Subsection (b)

above to be immediately reinstated in full.

For purposes of assessing penalties for repeated

offenses pursuant to this Section,

violation

includes

each violation at any property or for a tenant,

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regardless of property location within the City; and

violation

is limited to a violation of the same Municipal

Code Section number.

(Ord. 7, 2006 §1; Ord. 56, 1994 §1; Ord. 73, 1981 §2; prior code §15-

136)

Chapter 9.28 - Unlawful Noises

9.28.010 - Horns or other signaling devices sounding; exception.

The sounding of any horn or audible signaling device on any truck,

automobile, motorcycle or other vehicle on any street or public place

of the City, except as a danger warning signal as provided in the Traffic

Code of the City, is unlawful.

(Prior code §15-133(a)(1))

9.28.020 - Reserved.

9.28.030 - Length of sounding.

The sounding of a horn or audible signaling device for any

unnecessary and unreasonable period of time is unlawful.

(Prior code §15-133(a)(3))

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(a)

(b)

(c)

(d)

9.28.040 - Sound-reproduction devices, machines or vehicles; hours and

audibility standard.

Using, operating or permitting the use or operation of

any radio receiving set, musical instrument, television

set, phonograph or other machine or device for the

production or reproduction of sound between the

hours of 10:00 p.m. and the following 7:00 a.m. in such

a manner as to be plainly audible at the property

boundary of the source or plainly audible through party

walls within a building is unlawful.

Using, operating or permitting the use or operation of

any radio receiving set, musical instrument, television

set, phonograph or other machine or device for the

production or reproduction of sound at any time in

such a manner as to be plainly audible at fifty (50) feet

from such device when operated within a vehicle is

unlawful.

It is unlawful for a person to knowingly create loud and

excessive noise during the operation of a motor vehicle,

which includes but is not limited to squealing the tires

of a motor vehicle while it is stationary or in motion,

rapid acceleration, producing smoke from tire slippage

or leaving visible tire acceleration marks on the surface

of the roadway or ground.

A violation of this Section is a misdemeanor infraction

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and shall be punishable under

Chapter 1.32 of this

Code.

(Ord. 09, 2011 §1; Ord. 27, 2010 §1; Ord. 69, 2001 §1; Ord. 17, 1998 §1;

prior code §15-133(a)(4))

9.28.050 - Public entertainment places; violating OSHA standards.

Operating or permitting to be operated in an enclosed place of

public entertainment any loudspeaker or other source of amplified

sound in such a manner as to violate the permissible noise exposure

of the U.S. Occupational Safety and Health Act (OSHA) for any

individual in the enclosed place of public entertainment is unlawful.

(Prior code §15-133(a)(5))

9.28.060 - Use of dynamic braking devices; exception.

Operating any motor vehicle with a dynamic braking device

engaged, except for the aversion of imminent danger, is unlawful.

(Prior code §15-133(a)(6))

9.28.070 - Hours of operation for refuse collecting and compacting vehicles.

It shall be unlawful to operate any refuse compacting or collecting

vehicle for the purpose of collection or compaction of refuse or

recyclable materials in a residential district, or within three hundred

(300) feet of any residential district in the City, between the hours of

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10:00 p.m. and 7:00 a.m., except such vehicles may begin operation at

K—12th grade school sites at 6:00 a.m. during the period of time when

such schools are in session.

(Ord. 23, 2012 §1; Ord. 49, 1996 §1; Ord. 37, 1995 §1; prior code §15-

133(a)(7))

9.28.080 - Motor vehicles beyond ten thousand pounds.

Operating or permitting the operating of any motor of a motor

vehicle in excess of ten thousand (10,000) pounds, manufacturer's

gross vehicle weight or any attached auxiliary equipment, for a

consecutive period longer than ten (10) minutes, while such vehicle is

standing on a public right-of-way in a residential district or is on

private property in a residential district and is not within a completely

enclosed structure, is unlawful.

(Prior code §15-133(a)(8))

Chapter 9.32 - Sound-Amplifying Equipment

9.32.010 - Residential districts; certain installation, use or operation

prohibited; permits.

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It is unlawful for any person to install, use or operate a

loudspeaker or sound-amplifying equipment in a fixed or movable

position, or attached to or mounted upon any motor vehicle, within a

residential district for the purpose of giving instructions, directions,

talks, addresses or lectures, or for transmitting music or sound to any

persons or assemblages of persons; provided, however, that a permit

as described in Sections

9.32.030, 9.32.040 and 9.32.050 may be

applied for, for activities such as but not limited to concerts, speeches

or lectures held in public parks of the City.

(Prior code §15-134(a))

9.32.020 - Commercial or industrial districts; permit required.

It is unlawful for any person to install, use or operate a

loudspeaker or sound-amplifying equipment in a fixed or movable

position, or attached to or mounted upon any motor vehicle, within a

commercial or industrial district for the purpose of giving instructions,

directions, talks, addresses or lectures, or for transmitting music or

sound to any persons or assemblages of persons, without first

obtaining a permit pursuant to Sections

9.32.030, 9.32.040 and

9.32.050.

(Prior code §15-134(b))

9.32.030 - Permit application.

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(1)

(2)

(3)

(4)

(5)

(a)

An application for a permit shall be directed to the Chief of Police

and shall provide the following information:

The name, address and telephone number of both

the owner and user of the sound-amplifying

equipment;

The license number of a vehicle which is to be

used;

The general description of the sound-amplifying

equipment which is to be used;

Whether the sound-amplifying equipment will be

used for commercial or noncommercial purposes;

and

The dates and times upon which and the streets

over which the equipment is proposed to be

operated.

(Ord. 23, 2012 §1; Prior code §15-135(a))

9.32.040 - Issuance.

A permit shall be issued unless the Chief of Police or his

or her designee finds that the conditions of motor

vehicle movement or pedestrian movement are such

that the use of the equipment would constitute an

unreasonable interference with traffic safety or that the

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(b)

applicant for the permit cannot or will not comply with

the provisions of

Section 9.32.050 below, and no

variance has been granted.

The Chief of Police or his or her designee may grant a

variance to the requirements set forth in

Section

9.32.050 below upon finding that such variance serves

the public interest. In making such a determination, the

Chief of Police or his or her designee shall consider the

needs of the community, the reason for the variance

request and the impact to surrounding areas.

(Ord. 23, 2012 §1; Prior code §15-135(b))

9.32.050 - Hours of operation.

Unless a variance is granted authorizing additional or different

hours of operation, commercial and noncommercial sound-amplifying

equipment shall be operated only between the hours of 7:00 a.m. and

10:00 p.m. of each day; except that the operation of sound-amplifying

equipment for commercial purposes on Sundays and legal holidays is

permitted only between the hours of 10:00 a.m. and 4:00 p.m.

(Ord. 23, 2012 §1; Prior code §15-135(c))

9.32.060 - Unlawful acts; hours; sound level; proximity to public sessions;

penalties; repeat oenses.

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(1)

(2)

(3)

(4)

(5)

A person commits a violation of this Section if he or she uses or

operates sound-amplifying equipment:

Out of doors, except between 7:00 a.m. and 10:00

p.m.

Indoors, if the projection of the sound is plainly

audible to persons out of doors and at or beyond

the property line from which the sound is being

emitted.

At a sound level higher than necessary to

accomplish the purposes for which a permit from

the Chief of Police was granted.

Within five hundred feet (500) of any place where

a public council, board or court is in session.

That produces any noise emitted at levels which

annoys, disturbs, injures or endangers the

comfort, repose, health, peace or safety of [a]

reasonable person of normal sensitivities.

(

Ord. No. 3, 2015, § 1(Exh. A), 1-20-2015; Ord. 41, 2006 §1; Ord. 7, 2006

§1; Prior code §15-133(b))

9.32.070 - Defense; sound-amplifying equipment dened.

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(a)

(b)

It is an affirmative defense to

Section 9.32.060 above that the

defendant has been granted a permit from the Chief of Police and that

the use and operation of the sound-amplifying equipment has been

consistent with the use authorized by the permit.

Sound-amplifying

equipment,

as used in this Section and Section 9.32.060 above, means

any machine or device for the amplification of the human voice, music

or any other sound, but shall not be construed as including such

equipment when used in a normal and reasonable manner in or about

a residence, business establishment or vehicle if the equipment is

designed and intended to be heard only by the occupants thereof.

(Ord. 23, 2012 §1; Prior code §15-133(c))

9.32.080 - Penalties; repeated oenses.

Any person found guilty after trial or plea of: guilt;

Alford; nolo contendere; or deferred sentence plea to

any provision of

Section 9.32.060 above shall be fined

not less than one thousand dollars ($1,000.00), plus any

additional penalties assessed pursuant to

Chapter 1.32

of this Code, except as provided in Subsection (b)

below.

Up to seven hundred fifty dollars ($750.00) of the fine

may be suspended if the guilty party agrees to attend

City-sponsored training related to neighborhood

conduct and perform fifteen (15) hours of community

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(c)

(d)

service within the City, as so approved by the Municipal

Court, within three (3) months following his or her

sentencing.

A repeat offense within three hundred sixty-five (365)

days from the date of a finding of guilt pursuant to this

Section shall cause the full amount of the penalty as

may be modified under Subsection (b) above to be

immediately reinstated in full.

For purposes of assessing penalties for repeated

offenses pursuant to this Section,

violation

includes

each violation at any property or for a tenant,

regardless of property location within the City; and

violation

is limited to a violation of the same Municipal

Code Section number.

(Ord. 41, 2006 §2; Ord. 7, 2006 §1)

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CITY OF LONGMONT

NOISE INFORMATION

5/12/2020 Longmont, CO Code of Ordinances

10.20.100. - Unreasonable noises prohibited—Prima facie unreasonable noises.

Notwithstanding

section 10.20.110, it is unlawful to intentionally, knowingly or recklessly

make, permit or assist another to make unreasonable noise in a public place or near a

private residence that a person has no right to occupy, which, under all of the circumstances

presented, would cause a person of ordinary sensitivities significant annoyance and

irritation. The following noises and circumstances shall be deemed as prima facie

unreasonable in the context, however, of the above standards:

Amplified sound as defined at

section 13.37.020 of this Code audible 25

feet from the source of said sound or within a private residence that the

person responsible for the sound has no right to occupy; or

Nonlicensed motor vehicle engines, nonvehicular engines and electric

and pneumatic tools operated between 10:00 p.m. and 7:00 a.m. and

audible 25 feet from the source of the sound or within a private

residence that the person responsible for the sound has no right to

occupy; or

Repair or adjustment of a motor vehicle or other types of machinery or

equipment between 10:00 p.m. and 7:00 a.m. which is audible 25 feet

from the source of the sound or within a private residence that the

person responsible for the sound has no right to occupy; or

A gathering of persons engaged in loud and continuing activities

continuing for a minimum of 15 minutes between 10:00 p.m. and 7:00

a.m. and audible 25 feet from the source of the sound or within a private

residence that the person responsible for the sound has no right to

occupy.

Except that amplified sound of 80 decibels or less as measured from the perimeter of the

area covered by a use of public places permit for a special event issued pursuant to

chapter

13.37 of this Code and city operations such as mowing and maintenance shall not constitute

an unreasonable noise.

(Code 1993, § 10.20.100; Ord. No. O-92-51, § 1; Ord. No. O-2012-89, § 2, 12-18-2012)

10.20.110. - Maximum permissible sound pressure levels—Denitions—Exceptions.

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Notwithstanding section 10.20.100, and except under conditions of emergency o

necessity, or for motor vehicle noise as regulated by section 225 of the Model Tra

is unlawful to make, cause to be made or assist another to make noise measured

distance at least 25 feet from a noise source as set forth in the table immediately

between 10:00 p.m. and 7:00 a.m., unless the prohibited noise pressure level is c

entirely within the confines of private property which the person making or assis

noise has a right to occupy. Such noise shall be measured pursuant to the "A" we

sound pressure level measured with a sound level meter using the "A" weighting

The standard unit notation is dB(A).

TABLE

10.20.110 A

NIGHTTIME NOISE STANDARDS

Premises Receiving Sound Maximum Nighttime Sound Level db(A)

Zone

Residential 50 dB(A)

Commercial 55 dB(A)

Industrial 75 dB(A)

Notwithstanding

section 10.20.100, and except under conditions of emergency

or manifest necessity, it is unlawful to make, cause to be made or assist

another to make noise measured at a distance at least 25 feet from a noise

source as set forth in the table immediately below between 7:00 a.m. and

10:00 p.m., unless the prohibited noise pressure level is contained entirely

within the confines of private property which the person making or assisting

such noise has a right to occupy. Such noise shall be measured pursuant to

the "A" weighted sound pressure level measured with a sound level meter

using the "A" weighting network. The standard unit notation is dB(A).

TABLE

10.20.110 B

DAYTIME NOISE STANDARDS

Premises Receiving Sound Maximum Daytime Sound Level db(A)

Zone

Residential 55 dB(A)

Commercial 65 dB(A)

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ii.

iii.

Industrial 75 dB(A)

Residential dwelling units located in the same building as, or on the same lot

as a nonresidential use shall be considered "commercial" premises for the

purposes of Table

10.20.110 B, i.e., a maximum 65 dB(A) shall apply.

Additional noise standards and exemptions for specific operations and

activities:

Refuse collection/loading.

No person shall engage in waste disposal

services or refuse loading and collection or operate any compacting

equipment or similar mechanical device in any manner so as to create

any noise exceeding the standards stated above when measured at a

distance of 50 feet from the equipment when inside of or within 500 feet

of a residential zone. No refuse loading or collection shall take place

between the hours of 7:00 p.m. and 7:00 a.m.

Truck/rail loading.

Except for truck loading at retail grocery stores, no

truck or rail loading or unloading is allowed within 250 feet of a

residential lot between the hours of 10:00 p.m. and 7:00 a.m.

Homeowners' outdoor equipment.

No person shall operate engine or motor-powered lawn or

maintenance tools intended for use in residential areas such as

power mowers, leaf blowers, garden tools, riding tractors, power

saws, edgers, and similar equipment that would create a noise that

exceeds the fixed source standards stated above, except between

the hours of 7:00 a.m. and 10:00 p.m.

Where applicable, homeowners' outdoor equipment shall have

mufflers that are kept in good working condition.

Snow blowers and snowplows are exempted from the time

requirements of this section when necessary to remove ice and

snow.

Construction activities.

No activity incidental to the erection, demolition,

assembling, altering, installing or equipping of buildings, structures,

roads or appurtenances thereof, including land clearing, grading,

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ii.

excavating and filling shall occur between the hours of 7:00 p.m. and

7:00 a.m. Monday through Saturday or before 9:00 a.m. on Sundays,

within a residential area or within 500 feet of a school, except for

temporary conditions approved by the economic development director.

Exemptions.

The following operations and activities are exempted from

the limitations of this section:

Warning or alarm devices that have the purpose of signaling unsafe

or dangerous situations or calling for police.

Noises resulting from authorized public activities such as parades,

fireworks displays, sports activities and events, musical

productions, and other activities to the extent they are approved

and limited by the city.

When the noise source can be measured from more than one zone, the

permissible sound level of the more restrictive zone applies.

As used in this section:

"Commercial" means any area of offices, clinics, automobile service

stations, shopping, financial, restaurant, entertainment and similar

facilities and institutions.

"Condition of emergency" means a sudden, unexpected or unforeseen

occurrence or condition involving a real threat to human life or safety, or

requiring immediate response to protect or preserve property.

"Industrial" means an area in which commodities are manufactured,

processed or fabricated, and shall conditionally include railroad rights-of-

way.

"Manifest necessity" means that compliance with the sound pressure

levels will cause undue hardship and:

The activity, operation or sound source will be strictly limited to the

least amount of time required, and even with the application of the

best available control technology cannot be done in a manner that

would comply with this section; and

No reasonable alternative is available to comply with this section by

restricting noncompliant sound pressure sources to times between

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7:00 a.m. and 10:00 p.m.

"Residential" means any area of single or multifamily dwellings, transient

lodging facilities, hospitals, nursing homes and similar facilities and

institutions.

Any person responsible for noise limitations may petition the city manager or

designee for a temporary hardship permit setting forth the basis of the undue

hardship in writing, the anticipated duration of the condition creating

hardship and any other relevant matters in the issues set forth below. A

temporary hardship permit shall be granted if it is found that the activity,

operation or noise source will be of temporary duration, and that compliance

with the sound pressure standards of this section cannot reasonably be

obtained. No temporary permit may be issued for a period exceeding 90 days,

and the city manager or designee reviewing the application shall set any

conditions, limitations or requirements necessary to minimize adverse effects

upon the impacted area of the noise. An aggrieved party may appeal the

decision of the city manager to the city council within seven days of the order

of approval or denial of the hardship permit request. An aggrieved party may

appeal the decision of the city council pursuant to Rule 106(a)(4) of the

Colorado Rules of Civil Procedure.

(Code 1993, § 10.20.110; Ord. No. O-2003-52, § 1; Ord. No. O-92-51, § 1; Ord. No. O-2012-89, §

3, 12-18-2012)

Longmont-5

CITY OF LOVELAND

NOISE INFORMATION

5/12/2020 Loveland, CO Code of Ordinances

CHAPTER 7.32. - SOUND LIMITATIONS

Footnotes:

--- (2) ---

Prior ordinance history: prior code §§ 33.1, 33.6, as amended by Ords. 998,

1237, 1250 and 1396.

7.32.010 - Prohibitions.

It is unlawful to make or cause to be made, or create or

cause to be created, any noise, the sound levels of

which, when measured at a distance of 25 feet or more

from any property line, are in excess of the limits set

out in

Section 7.32.040.

It is unlawful to make or cause to be made, or create or

cause to be created, any periodic, impulsive or shrill

noises which, when measured as in Subsection A above,

are in excess of a sound level of 5 db(A) less than the

limits set out in

Section 7.32.040.

It is unlawful to make, continue or cause to be made or

continued any unreasonable noise; and no person shall

knowingly permit such noise upon any premises or in

or upon any vehicle owned or possessed by such

person or under such person's control or operation. For

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purposes of this Section 7.32.010.C, peace officers are

empowered to make a prima facie determination as to

whether a noise is unreasonable.

With regard to the operation of motor vehicles, and

without limiting the generality of the Section,

unreasonable noise shall include, but not be limited to:

The continuous or repeated sounding of any horn

or signal device of a motor vehicle, except as a

danger signal. For the purposes of this Subsection,

continuous shall mean continuing for an

unnecessary or unreasonable period of time.

The operation of any motor vehicle in a manner

which causes excessive noise as a result of

unnecessary rapid acceleration, deceleration,

revving the engine or tire squeal.

(Ord. 1988 § 1 (part), 1981)

7.32.020 - Denitions.

As used in this chapter the following words shall be defined as set

out below:

Adjacent.

When a noise source can be measured for more than

one zone, the permissible sound level of the more restricted zone shall

govern.

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Commercial

means an area containing offices, clinics and facilities

needed to serve them; local shopping and service establishments

located within walking distances of the residents served; tourist-

oriented areas containing hotels, motels and gasoline stations,

integrated regional shopping areas, a business strip along a main

street containing offices, retail businesses and commercial enterprises,

commercial business district or a commercially dominated area with

multiple unit dwellings.

db(A)

means sound levels in decibels measured on the "A" scale of

a standard sound level meter having characteristics defined by the

American National Standards Institute ("ANSI"), Publication S1.4-1983

or successor publications of ANSI, or its successor bodies.

Decibel

means a unit used to express the magnitude of a change

in sound level. The difference in decibels between two sound pressure

levels is 20 times the common logarithm of their ratio. In sound

pressure measurements sound levels are defined as 20 times the

common logarithm of the ratio of that sound pressure level to a

reference level of 2 x 10 - 5N/m2 (Newtons/meter squared). As an

example of the formula, a three decibel change is a 100 percent

increase or decrease in the sound level, and a ten decibel change is a

1,000 percent increase or decrease in the sound level.

Industrial

means an area in which noise restrictions on industry

are necessary to protect the value of adjacent properties or for other

economic activity, but shall not include agricultural operations.

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Property

means real and personal property, but not including

motor vehicles or motorized bicycles or motorcycles.

Residential

means an area of single or multifamily dwellings where

businesses may or may not be conducted in such dwellings. This zone

includes areas where multiple unit dwellings, high-rise apartment

districts, hospitals, nursing homes and similar institutional facilities

and redevelopment districts are located. A residential zone may

include areas containing accommodations for transients, such as

residential hotels and motels, and residential areas with limited office

development, but it may not include retail shopping facilities.

Unreasonable noise

means any sound of such level and duration

as to be or tend to be injurious to human health or welfare, or which

would unreasonably interfere with the enjoyment of life or property

throughout the city or in any portions thereof, but excludes all aspects

of the employer-employee relationship concerning health and safety

hazards within the confines of a place of employment.

(Ord. 1988 § 1 (part), 1981)

7.32.040 - Noise limitation.

Except as provided in Sections

7.32.060 and 7.32.070, no noise

shall exceed the levels set out below when measured pursuant to

Section 7.32.050; provided however, that a violation of Subsection

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7.32.010.C may occur without exceeding these levels and without a

measurement:

ZONE 7:00 a.m. to 9:00

p.m.

9:00 p.m. to 7:00

a.m.

Residential 55 db(A) 50 db(A)

Commercial 60 db(A) 55 db(A)

Industrial 75 db(A) 70 db(A)

(Ord. 4998 § 1 (part), 2005; Ord. 1988 § 1 (part), 1981)

7.32.050 - Sound measurement.

A noise shall be measured on the "A" scale of a standard sound

level meter having characteristics defined by the American National

Standards Institute "ANSI", Publication S1.4-1983, or successor

publications of ANSI , or its successor bodies. Measurements with

sound level meters shall be made when the wind velocity at the time

and place of such measurement is not more than five miles per hour.

In all sound level measurements, consideration shall be given to the

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effect of the ambient noise level created by the encompassing noise of

the environment from all sources at the time and place of such sound

level measurement.

(Ord. 1988 § 1 (part), 1981)

7.32.060 - Exceptions.

In the hours between 7:00 a.m. and the next 9:00 p.m.

the noise levels permitted in

Section 7.32.040 may be

increased by ten db(A) for a period of not exceeding 15

minutes in any one hour.

All sound emanating from any aircraft, church, warning

or emergency signal device used or authorized by any

government agency, or program incident to the

recognition or celebration of Veteran's Day, shall not be

subject to the provisions of this chapter.

The provisions of this chapter shall not apply to any

authorized emergency vehicle (as defined by the Model

Traffic Code, as amended and adopted by the city and

the Colorado Revised Statutes) when responding to an

emergency call.

The provisions of this chapter shall not apply to those

activities of temporary duration permitted by law for

which a license or permit has been granted by the city,

Loveland-6

5/12/2020 Loveland, CO Code of Ordinances

including but not limited to parades and firework

displays.

All railroad rights-of-way are considered as industrial

zones for the purposes of this chapter and the

operation of trains are subject to the maximum

permissible noise levels specified for the industrial zone

as indicated in

Section 7.32.040.

Construction projects shall be subject to the maximum

noise level specified for industrial zones as indicated in

Section 7.32.040 for the period of the construction

project, provided that the proper construction permit

has been issued by the city.

(Ord. 1988 § 1 (part), 1981)

7.32.070 - Temporary permits.

Temporary permits to exceed sound limitations of this chapter

may be issued by the city manager. All temporary permits shall contain

the following provisions: the duration of the permit, the sound source

temporarily permitted, the hours of the day and days of the week such

permit is effective, and any other limitations that may be imposed by

the city manager.

(Ord. 1988 § 1 (part), 1981)

Loveland-7

APPENDIX C

SPRING/SUMMER SCHEDULES

Region 4 Lane Closure Strategy, 4

Ed.

Appendix C

APPENDIX C. SPRING/SUMMER ALLOWABLE

CLOSURE HOURS

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

001A 0.00 0.35 US 287 IN FORT COLLINS LARIMER CR 50 E 9100 2 Both Anytime Anytime 8 PM to 6 AM Anytime Anytime 8 PM to 8 AM

001A 0.35 3.71 LARIMER CR 50 E LARIMER CR 58 7400 2 Both Anytime Anytime 7 PM to 6 AM Anytime Anytime 7 PM to 9 AM

001A 3.71 9.41 LARIMER CR 58 1ST ST WELLINGTON 4700 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

001A 9.41 10.05 1ST ST WELLINGTON I-25 (WELLINGTON INTERCHANGE) 10000 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

006I 343.72 346.70 I-76 MORGAN CR 3 INTERCHANGE EASTBOUND I-76 ON RAMP WIGGINS 3800 2 Both Anytime Anytime

9 PM to 11 AM

1 PM to 3 PM

Anytime Anytime Anytime

006J 371.69 376.22 I-76 INTERCHANGE BRUSH MORGAN CR W HILLROSE 1700 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 376.22 397.96 MORGAN CR W HILLROSE 5TH ST ATWOOD 1700 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 397.96 403.86 5TH ST ATWOOD FRONT ST STERLING 5100 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 403.86 404.15 FRONT ST STERLING DIVISION AVE STERLING 3300 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 404.15 404.64 DIVISION AVE STERLING (BEGIN EB 1-WAY) SH 138 STERLING (END EB 1-WAY) 5400 3 EB Anytime Anytime Anytime Anytime Anytime Anytime

006J 404.64 407.18 CHESTNUT ST STERLING LEAVE STERLING URBAN LIMIT 12000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 407.18 436.50 LEAVE STERLING URBAN LIMIT SH 59 HAXTUN 2600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 436.50 444.76 SH 59 HAXTUN PHILLIPS CR 21 PAOLI 1800 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 444.76 453.81 PHILLIPS CR 21 PAOLI SHERMAN AVE HOLYOKE 1600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 453.81 453.94 SHERMAN AVE HOLYOKE BELFORD AVE HOLYOKE 3300 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 453.94 454.32 S BELFORD AVE HOLYOKE MORLAN AVE HOLYOKE 5100 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 454.32 454.62 MORLAN AVE HOLYOKE WORLEY AVE HOLYOKE 4400 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

006J 454.62 467.28 WORLEY AVE HOLYOKE NEBRASKA STATE LINE 2000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

006Z 0.00 0.09 N 3RD ST & W CHESTNUT ST STERLING N 4TH ST & W CHESTNUT ST STERLING 6300 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

006Z 0.09 0.60 CHESTNUT ST STERLING (BEGIN WB 1-WAY) DIVISION AVE STERLING (END WB 1-WAY) 5900 3 WB Anytime Anytime Anytime Anytime Anytime Anytime

007A 0.00 0.58 US 36 ESTES PARK GRAVES AVE ESTES PARK EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

007A 0.58 0.00 GRAVES AVE ESTES PARK US 36 ESTES PARK WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

007A 0.58 1.65 GRAVES AVE ESTES PARK PEAK VIEW DR ESTES PARK 9300 3 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

007A 1.65 3.48 PEAK VIEW DR ESTES PARK MARY'S LAKE RD S/O ESTES PARK 6500 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

007A 3.48 3.88 MARY'S LAKE RD S/O ESTES PARK FISH CREEK WAY LARIMER COUNTY 3800 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

007A 3.88 33.00 FISH CREEK WAY LARIMER COUNTY BROADWAY ST LYONS WB 3400 2 Both Anytime Anytime 9 PM to 10 AM Anytime 9 PM to 10 AM 9 PM to 8 AM

007B 49.51 50.53 BROADWAY BOULDER 26TH ST BOULDER 25000 4 Both

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to Noon 9 PM to Noon 9 PM to Noon

007B 50.53 50.64 26TH ST BOULDER US 36 (28TH ST) BOULDER EB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to Noon 9 PM to Noon 9 PM to Noon

007B 50.64 50.53 US 36 (28TH ST) BOULDER 26TH ST BOULDER WB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to 4 PM 5 PM to 4 PM 5 PM to 4 PM

007C 52.49 54.33 US 36 (28TH ST) BOULDER 55TH ST BOULDER EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

007C 54.33 52.49 55TH ST BOULDER US 36 (28TH ST) BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

007C 54.33 55.25 55TH ST BOULDER 63RD ST BOULDER COUNTY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 3 PM 5 PM to 3 PM 5 PM to 3 PM

007C 55.25 54.33 63RD ST BOULDER COUNTY 55TH ST BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description

8800 4

35000 6

528000

Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

22000 4

Page C-1

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

007C 55.25 56.77 63RD ST BOULDER COUNTY 75TH ST BOULDER COUNTY 21000 3 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

007C 56.77 59.46 75TH ST BOULDER COUNTY 95TH ST LAFAYETTE 21000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 11 PM to 7 AM

007C 59.46 60.68 95TH ST LAFAYETTE US 287 LAFAYETTE 16000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 6 PM to 10 AM 7 PM to 9 AM 10 PM to 7 AM

007E 0.00 1.59 BUS. LOOP ALLENS PARK SKI RD ALLENS PARK 770 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

011A 0.00 1.35 SH 138 SEDGWICK COLORADO NEBRASKA STATE LINE 480 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

014B 64.82 121.69 WEST END OF CAMERON PASS US 287 LARIMER COUNTY 3000 2 Both Anytime Anytime Anytime 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

014C 134.73 135.71 S COLLEGE AVE FORT COLLINS MULBERRY ST / RIVERSIDE AVE FORT COLLINS EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

014C 135.71 134.73 MULBERRY ST / RIVERSIDE AVE FORT COLLINS S COLLEGE AVE FORT COLLINS WB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

014C 135.71 136.05 MULBERRY ST / RIVERSIDE AVE FORT COLLINS LEMAY ST FORT COLLINS EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

6 PM to Noon 6 PM to Noon 6 PM to Noon

014C 136.05 135.71 LEMAY ST FORT COLLINS MULBERRY ST / RIVERSIDE AVE FORT COLLINS WB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

6 PM to 11 AM 6 PM to 11 AM 6 PM to 11 AM

014C 136.05 137.62 LEMAY ST FORT COLLINS S SUMMIT VIEW DR FORT COLLINS EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

7 PM to 10 AM 7 PM to 10 AM 7 PM to 10 AM

014C 137.62 136.05 S SUMMIT VIEW DR FORT COLLINS LEMAY ST FORT COLLINS WB

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

7 PM to 9 AM 7 PM to 9 AM 7 PM to 9 AM

014C 137.62 138.75 S SUMMIT VIEW DR FORT COLLINS SW FRONTAGE RD FORT COLLINS EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

6 PM to 11 AM 6 PM to 11 AM 6 PM to 11 AM

014C 138.75 137.62 SW FRONTAGE RD FORT COLLINS S SUMMIT VIEW DR FORT COLLINS WB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

6 PM to 10 AM 6 PM to 10 AM 6 PM to 10 AM

014C 138.75 138.97 SW FRONTAGE RD FORT COLLINS I-25 INTERCHANGE FORT COLLINS EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

7 PM to 10 AM 7 PM to 10 AM 7 PM to 10 AM

014C 138.97 138.75 I-25 INTERCHANGE FORT COLLINS SW FRONTAGE RD FORT COLLINS WB

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

7 PM to 9 AM 7 PM to 9 AM 7 PM to 9 AM

014C 138.97 139.46 I-25 INTERCHANGE FORT COLLINS CHANGE WIDTH e/o BOX ELDER CREEK EB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

014C 139.46 138.97 CHANGE WIDTH e/o BOX ELDER CREEK I-25 INTERCHANGE FORT COLLINS WB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

014C 139.46 142.18 CHANGE WIDTH e/o BOX ELDER CREEK WELD CR 1 11000 2 Both

9 PM to 5 AM

8 AM to 3 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM Anytime Anytime 9 PM to 5 AM

014C 142.18 144.15 WELD CR 1 SH 257 WELD COUNTY 9700 2 Both 9 PM to 5 PM

9 PM to 5 AM

8 AM to 3 PM

9 PM to 5 AM Anytime Anytime 9 PM to 8 AM

014C 144.15 152.16 SH 257 WELD COUNTY WELD CR 33 8500 2 Both Anytime 9 PM to 5 PM 9 PM to 5 AM Anytime Anytime 9 PM to 9 AM

014C 152.16 153.37 WELD CR 33 SH 85 AULT 5800 2 Both Anytime Anytime 7 PM to 6 AM Anytime Anytime 4 PM to 11 AM

014C 153.37 222.20 SH 85 AULT LOGAN CR 11 4000 2 Both Anytime Anytime 6 PM to 4 PM Anytime Anytime Anytime

014C 222.20 229.23 LOGAN CR 11 LOGAN CR 25 1600 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

014C 229.23 234.26 LOGAN CR 25 LOGAN CR 35 3800 2 Both Anytime Anytime 9 PM to 11 AM Anytime Anytime Anytime

014C 234.26 236.92 LOGAN CR 35 US 6 NE (3RD ST) RD SE (MAIN ST) -- END SH 14 17000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

023A 0.00 17.84 US 385 HOLYOKE COLORADO NEBRASKA STATE LINE 510 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

024B 419.32 437.00 CR 12.00 W/O SEIBERT SH 57 (KANSAS AVE) IN STRATTON 760 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

024C 437.55 454.87 SH 57 (CR 31) IN STRATTON US 385 IN BURLINGTON 2800 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

024D 456.00 457.29 7TH ST IN BURLINGTON NORTH I-70 FRONTAGE ROAD IN BURLINGTON 4000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

024F 0.00 0.48 US 40 IN LIMON I-70 INTERCHANGE (#259) 6100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

024G 350.58 377.40 EL PASO / ELBERT COUNTY LINE N AVE - LIMON 4700 2 Both Anytime Anytime

9 PM to 5 AM

1 PM to 3 PM

Anytime Anytime 9 PM to 5 AM

024G 377.40 379.29 N AVE - LIMON LAKE CREEK 6400 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

20000 4

22000

34000

41000

31000

40000

Page C-2

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

024G 379.29 380.46 LAKE CREEK I-70 INTERCHANGE (#363) 1900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

025A 229.11 235.15 SH 7/ BASELINE RD BROOMFIELD COUNTY SH 52 / DACONO / FT LUPTON NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 235.15 229.11 SH 52 / DACONO / FT LUPTON SH 7/ BASELINE RD BROOMFIELD COUNTY SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 235.15 243.15 SH 52 / DACONO / FT LUPTON SH 66 NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 243.15 235.15 SH 66 SH 52 / DACONO / FT LUPTON SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 243.15 247.00 SH 66 SOUTHBOUND PASSING LANE END NB 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM

025A 247.00 243.15 SOUTHBOUND PASSING LANE END SH 66 SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 247.00 250.00 SOUTHBOUND PASSING LANE END SOUTHBOUND PASSING LANE START NB 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM

025A 250.00 247.00 SOUTHBOUND PASSING LANE START SOUTHBOUND PASSING LANE END SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 250.00 265.41 SOUTHBOUND PASSING LANE START HARMONY ROAD INTERCHANGE NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM 10 PM to 5 AM

025A 265.41 250.00 HARMONY ROAD INTERCHANGE SOUTHBOUND PASSING LANE START SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 265.41 271.37 HARMONY ROAD INTERCHANGE MTN VISTA DRIVE INTERCHANGE NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 271.37 265.41 MTN VISTA DRIVE INTERCHANGE HARMONY ROAD INTERCHANGE SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

025A 271.37 277.94 MTN VISTA DRIVE INTERCHANGE SH 1 / WELLINGTON NB 6 PM to 4 PM 6 PM to 4 PM 6 PM to 4 PM 5 PM to Noon 5 PM to Noon 5 PM to Noon

025A 277.94 271.37 SH 1 / WELLINGTON MTN VISTA DRIVE INTERCHANGE SB

6 PM to 7 AM

9 AM to 4 PM

6 PM to 7 AM

9 AM to 4 PM

6 PM to 7 AM

9 AM to 4 PM

5 PM to 11 AM 5 PM to 11 AM 5 PM to 11 AM

025A 277.94 298.88 SH 1 / WELLINGTON WYOMING STATE LINE NB Anytime Anytime Anytime Anytime Anytime Anytime

025A 298.88 277.94 WYOMING STATE LINE SH 1 / WELLINGTON SB Anytime Anytime Anytime Anytime Anytime Anytime

034A 57.69 59.19 RMNP TOLLGATE FISH HATCHERY RD ESTES PARK 2800 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 59.19 60.97 FISH HATCHERY RD ESTES PARK BEGIN US 34 BUSINESS ESTES PARK 5100 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 60.97 61.93 BEGIN US 34 BUSINESS ESTES PARK BIG HORN DRIVE ESTES PARK 3900 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 61.93 62.51 BIG HORN DRIVE ESTES PARK E ELKHORN AVE ESTES PARK 6700 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 62.51 63.19 E ELKHORN AVE ESTES PARK SUMMIT DR ESTES PARK EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 63.19 62.51 SUMMIT DR ESTES PARK E ELKHORN AVE ESTES PARK WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 63.19 64.23 SUMMIT DR ESTES PARK CR 63E ESTES PARK 12000 3 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 64.23 75.58 CR 63E ESTES PARK DEVILS GULCH RD DRAKE 6600 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 75.58 83.50 DEVILS GULCH RD DRAKE START 4-LANE SECTION 5200 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 83.50 84.10 START 4-LANE SECTION END 4-LANE SECTION 5200 4 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 84.10 84.76 END 4-LANE SECTION LARIMER CR 29 5200 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 84.76 87.69 LARIMER CR 29 LARIMER CR 27 8800 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034A 87.69 88.68 LARIMER CR 27 MORNING DR LOVELAND 12000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 6 PM to 9 AM 7 PM to 9 AM 9 PM to 7 AM

034A 88.68 89.39 MORNING DR LOVELAND NAMAQUA AVE LOVELAND EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034A 89.39 88.68 NAMAQUA AVE LOVELAND MORNING DR LOVELAND WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

127000

84000

18000

104000

16000

84000 4

25000

34000

71000

87000 4

Page C-3

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

034A 89.39 90.28 NAMAQUA AVE LOVELAND VAN BUREN AVE LOVELAND EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034A 90.28 89.39 VAN BUREN AVE LOVELAND NAMAQUA AVE LOVELAND WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034A 90.28 96.03 VAN BUREN AVE LOVELAND WEST I-25 FRONTAGE ROAD EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

034A 96.03 90.28 WEST I-25 FRONTAGE ROAD VAN BUREN AVE LOVELAND WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 9 AM 7 PM to 9 AM 7 PM to 9 AM

034A 96.03 98.84 WEST I-25 FRONTAGE ROAD LARIMER-WELD COUNTY LINE EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 8 PM to Noon 8 PM to Noon 8 PM to Noon

034A 98.84 96.03 LARIMER-WELD COUNTY LINE WEST I-25 FRONTAGE ROAD WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 9 AM 7 PM to 9 AM 7 PM to 9 AM

034A 98.84 102.48 LARIMER-WELD COUNTY LINE US 34D INTERCHANGE GREELEY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 8 PM to Noon 8 PM to Noon 8 PM to Noon

034A 102.48 98.84 US 34D INTERCHANGE GREELEY LARIMER-WELD COUNTY LINE WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 6 PM to 10 AM 6 PM to 10 AM 6 PM to 10 AM

034A 102.48 102.80 US 34D INTERCHANGE GREELEY SH 257 (ENTER GREELEY) EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

034A 102.80 102.48 SH 257 (ENTER GREELEY) US 34D INTERCHANGE GREELEY WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

034A 102.80 107.61 SH 257 (ENTER GREELEY) 65TH AVE GREELEY EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

6 PM to 3 PM 6 PM to 3 PM 6 PM to 3 PM

034A 107.61 102.80 65TH AVE GREELEY SH 257 (ENTER GREELEY) WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to Noon 5 PM to Noon 5 PM to Noon

034A 107.61 112.23 65TH AVE GREELEY 11TH AVE GREELEY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 1 PM 7 PM to 1 PM 7 PM to 1 PM

034A 112.23 107.61 11TH AVE GREELEY 65TH AVE GREELEY WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 10 AM 5 PM to 10 AM 5 PM to 10 AM

034A 112.23 113.14 11TH AVE GREELEY EB SH 85 OVERPASS GREELEY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 2 PM 7 PM to 2 PM 7 PM to 2 PM

034A 113.14 112.23 EB SH 85 OVERPASS GREELEY 11TH AVE GREELEY WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 11 AM 5 PM to 11 AM 5 PM to 11 AM

034A 113.14 135.61 EB SH 85 OVERPASS GREELEY MORGAN CR 386 EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

034A 135.61 113.14 MORGAN CR 386 EB SH 85 OVERPASS GREELEY WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

034A 135.61 149.63 MORGAN CR 386 SH 39 OVERPASS WIGGINS 5700 2 Both

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime 6 PM to 11 AM

034B 159.00 162.26 I-76 FORT MORGAN INTERCHANGE LANE ST FORT MORGAN 3600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 162.26 168.47 LANE ST FORT MORGAN CR 24 FORT MORGAN 12000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 168.47 172.74 CR 24 FORT MORGAN EDMUNDS ST BRUSH 6800 2 Both Anytime Anytime 9 PM to 5 AM Anytime Anytime 9 PM to 8 AM

034B 172.74 173.85 EDMUNDS ST BRUSH US 34 SPUR TO I-76 BRUSH 4300 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 173.85 195.84 US 34 SPUR TO I-76 BRUSH CUSTER AVE AKRON 3200 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 195.84 204.06 CUSTER AVE AKRON CR KK PLATNER WASHINGTON COUNTY 5700 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 204.06 222.77 CR KK PLATNER WASHINGTON COUNTY S DATE ST YUMA 2900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 222.77 223.35 S DATE ST YUMA SH 59 YUMA 7100 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 223.35 223.84 SH 59 YUMA IDLEWILD YUMA 6000 2 Both Anytime Anytime 9 PM to 8 AM Anytime Anytime 11 AM to 10 AM

034B 223.84 248.06 IDLEWILD YUMA CR 35 WRAY 3100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034B 248.06 250.48 CR 35 WRAY DOUGLAS ST WRAY 4800 2 Both Anytime Anytime 9 PM to 8 AM Anytime Anytime 11 AM to 10 AM

034B 250.48 259.51 DOUGLAS ST WRAY COLORADO NEBRASKA STATE LINE 3000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034C 1.30 1.69 MAC GREGOR AVE ESTES PARK ST VRAIN AVENUE EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

034C 1.69 1.30 ST VRAIN AVENUE MAC GREGOR AVE ESTES PARK WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

43000

40000

14000

35000

28000

49000

52000

54000

25000

18000

Page C-4

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

034D 0.00 1.86 BEGIN GREELEY BUSINESS LOOP SH 257 WELD COUNTY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 1.86 0.00 SH 257 WELD COUNTY BEGIN GREELEY BUSINESS LOOP WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 1.86 4.67 SH 257 WELD COUNTY 71ST AVE GREELEY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 4.67 1.86 71ST AVE GREELEY SH 257 WELD COUNTY WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 4.67 8.25 71ST AVE GREELEY 28TH AVE GREELEY EB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 8.25 4.67 28TH AVE GREELEY 71ST AVE GREELEY WB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 8.25 8.77 28TH AVE GREELEY BEGIN 1-WAY EB GREELEY EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 8.77 8.25 BEGIN 1-WAY WB GREELEY 28TH AVE GREELEY WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034D 8.77 10.00 BEGIN 1-WAY EB (10TH ST) GREELEY 10TH AVE GREELEY 10000 3 EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034D 10.00 11.06 10TH AVE GREELEY US 85 BUSINESS LOOP EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034D 11.06 10.00 US 85 BUSINESS LOOP 10TH AVE GREELEY WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

034D 11.06 14.71 US 85 BUSINESS LOOP US 34A 5300 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime 5 PM to Noon

034E 0.00 0.93 US 34 I-76 BRUSH INTERCHANGE 3000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

034F 0.00 0.03 US 34 END OF CDOT MAINTENANCE 1700 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

034Z 0.00 1.30 BEGIN 1-WAY WB (9TH ST) GREELEY WEST OF 23RD AVE GREELEY 11000 3 WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

036A 3.09 4.96 RMNP TOLLGATE SH 66 SOUTHWEST 6400 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

3 PM to 11 AM

Noon to 2 PM

5 PM to 10 AM 9 PM to 8 AM

036A 4.96 6.38 SH 66 SOUTHWEST DAVIS ST ESTES PARK 12000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

036A 6.38 6.98 DAVIS ST ESTES PARK US 34 BUSINESS LOOP 11000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM

036B 0.00 0.71 ELKHORN AVE ESTES PARK 4TH ST ESTES PARK EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 2 PM 9 PM to 2 PM 9 PM to 2 PM

036B 0.71 0.00 4TH ST ESTES PARK ELKHORN AVE ESTES PARK WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

036B 0.71 20.30 SH 7 ESTES PARK BEGIN 1-WAY PAIR LYONS 9900 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 7 AM

036B 20.30 20.72 BEGIN 1-WAY PAIR LYONS END 1-WAY PAIR LYONS 7000 2 EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 4 PM 9 PM to 4 PM 9 PM to 4 PM

036B 20.72 21.76 END 1-WAY PAIR LYONS JCT SH 66 BOULDER COUNTY EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

036B 21.76 20.72 JCT SH 66 BOULDER COUNTY END 1-WAY PAIR LYONS WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

036B 21.76 32.18 JCT SH 66 BOULDER COUNTY BROADWAY 14000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 8 AM 9 PM to 8 AM 10 PM to 7 AM

036B 32.18 34.76 BROADWAY KALMIA PKWY BOULDER 24000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 9 PM to 7 AM 10 PM to 7 AM 11 PM to 6 AM

036B 34.76 35.51 KALMIA PKWY BOULDER VALMONT RD BOULDER EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

036B 35.51 34.76 VALMONT RD BOULDER KALMIA PKWY BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 11 AM 9 PM to 11 AM 9 PM to 11 AM

036B 35.51 35.98 VALMONT RD BOULDER PEARL ST BOULDER EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 11 AM 9 PM to 11 AM 9 PM to 11 AM

036B 35.98 35.51 PEARL ST BOULDER VALMONT RD BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 10 AM 9 PM to 10 AM

036B 35.98 36.34 PEARL ST BOULDER SH 119 EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 10 AM 9 PM to 10 AM

036B 36.34 35.98 SH 119 PEARL ST BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

30000

26000

22000

23000

17000

28000

32000

40000

16000

17000 4

Page C-5

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

036B 36.34 36.53 SH 119 SH 7 BOULDER COUNTY EAST EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

036B 36.53 36.34 SH 7 BOULDER COUNTY EAST SH 119 WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 10 AM 9 PM to 10 AM

036B 36.53 37.60 SH 7 BOULDER COUNTY EAST BASELINE ROAD INTERCHANGE BOULDER EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

036B 37.60 36.53 BASELINE ROAD INTERCHANGE BOULDER SH 7 BOULDER COUNTY EAST WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 10 AM 9 PM to 10 AM

036B 37.60 39.20 BASELINE ROAD INTERCHANGE BOULDER FOOTHILLS PARKWAY INTERCHANGE EB 6 PM to 6 AM 6 PM to 6 AM 6 PM to 6 AM 6 PM to 9 AM 6 PM to 9 AM 6 PM to 9 AM

036B 39.20 37.60 FOOTHILLS PARKWAY INTERCHANGE BASELINE ROAD INTERCHANGE BOULDER WB

7 PM to 6 AM

9 AM to Noon

7 PM to 6 AM

9 AM to Noon

7 PM to 6 AM

9 AM to Noon

7 PM to 11 AM 7 PM to 11 AM 7 PM to 11 AM

036B 39.20 48.04 FOOTHILLS PARKWAY INTERCHANGE BROOMFIELD INTERCHANGE EB 8 PM to 6 AM 8 PM to 6 AM 8 PM to 6 AM 8 PM to 7 AM 8 PM to 7 AM 8 PM to 7 AM

036B 48.04 39.20 BROOMFIELD INTERCHANGE FOOTHILLS PARKWAY INTERCHANGE WB 9 PM to 6 AM 9 PM to 6 AM 9 PM to 6 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

036D 129.57 135.58 ADAMS CR 72 SH 71 LAST CHANCE 630 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

036D 135.58 224.38 SH 71 LAST CHANCE KANSAS STATE LINE 840 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

036E 0.00 0.28 US 36/BASELINE RD BOULDER SH 93 EB Anytime Anytime Anytime Anytime Anytime Anytime

036E 0.28 0.00 SH 93 US 36/BASELINE RD BOULDER WB Anytime Anytime Anytime Anytime Anytime Anytime

036Z 0.00 0.30 BEGIN 1 WAY WB SECTION LYONS END 1 WAY WB SECTION LYONS 7000 2 WB 9 PM to 5 PM 9 PM to 5 PM 9 PM to 5 PM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

039A 0.00 1.34 US 6 & SH 52 MORGAN COUNTY MORGAN CR S 3900 2 Both Anytime Anytime

6 PM to Noon

1 PM to 3 PM

Anytime Anytime Anytime

039A 1.34 7.57 MORGAN CR S SH 7 E & W BEGIN SH 42 1100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

040F 361.00 363.00 I-70 FRONTAGE ROAD (NEAR I-70 MP 338) I-70 INTERCHANGE (#340) IN AGATE 120 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

040G 381.27 382.18 I-70 FRONTAGE ROAD (I-70 MP 358) US 24 IN LIMON 210 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

040H 385.34 399.09 I-70 INTERCHANGE (#363) IN LIMON RD NE (1ST AVE.) (SHELL STREET) 6300 2 Both Anytime Anytime 7 PM to 7 AM Anytime Anytime 7 PM to 8 AM

040H 399.51 444.89 RD NE AND SW (3RD AVE) (BARRON ST) RD N AND S (CO RD 9) 5900 2 Both Anytime Anytime 7 PM to 7 AM Anytime Anytime 7 PM to 8 AM

040H 446.05 486.87 RD S (ST 3) KANSAS STATE LINE 1900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

042A 0.00 1.96 SH 7 S BOULDER RD LOUISVILLE 20000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 7 AM

042A 1.96 2.62 S BOULDER RD LOUISVILLE W PINE ST LOUISVILLE 18000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 9 AM 9 PM to 7 AM

042A 2.62 4.88 W PINE ST LOUISVILLE US 287 LAFAYETTE 12000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 11 AM 9 PM to 11 AM 9 PM to 8 AM

052A 0.00 4.67 SH 119 (DIAGONAL HIGHWAY) US 287 11000 2 Both

9 PM to 5 AM

8 AM to 3 PM

9 PM to 5 AM

9 AM to 2 PM

7 PM to 5 AM Anytime 6 PM to 10 AM 9 PM to 8 AM

052A 4.67 11.17 US 287 I-25 DACONO INTERCHANGE 19000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 4 AM 8 PM to 9 AM 9 PM to 8 AM 11 PM to 6 AM

052A 11.17 13.83 I-25 DACONO INTERCHANGE GLEN CREIGHTON DR DACONO 19000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 4 AM 8 PM to 8 AM 9 PM to 8 AM 11 PM to 6 AM

052A 13.83 18.44 GLEN CREIGHTON DR DACONO WELD CR 23 12000 2 Both

9 PM to 5 AM

8 AM to 2 PM

9 PM to 5 AM 9 PM to 5 AM Anytime 6 PM to 11 AM 9 PM to 7 AM

052A 18.44 19.96 WELD CR 23 SH 85 FT LUPTON 11000 2 Both

9 PM to 5 AM

8 AM to 3 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM Anytime 6 PM to 3 PM 9 PM to 8 AM

052A 19.96 20.67 SH 85 FT LUPTON HARRISON AVE FORT LUPTON 13000 2 Both

9 PM to 5 AM

8 AM to 3 PM

9 PM to 5 AM 9 PM to 5 AM 6 PM to 9 AM 7 PM to 8 AM 10 PM to 6 AM

052A 20.67 25.46 HARRISON AVE FORT LUPTON WELD CR 37 13000 2 Both

9 PM to 5 AM

8 AM to Noon

9 PM to 5 AM 9 PM to 5 AM 6 PM to 9 AM 8 PM to 8 AM 10 PM to 6 AM

052A 25.46 29.63 WELD CR 37 BEECH ST HUDSON 8800 2 Both Anytime

6 PM to 7 AM

9 AM to 4 PM

8 PM to 6 AM Anytime 6 PM to 10 AM 9 PM to 7 AM

052A 29.63 36.92 BEECH ST HUDSON WELD CR 59 3900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

052A 36.92 72.58 WELD CR 59 MORGAN CR Q WIGGINS 2100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

49000

46000

57000

94000

636000

Page C-6

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

052B 86.48 86.98 US 34 FORT MORGAN SH 144 FORT MORGAN 7300 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

052B 86.98 87.16 SH 144 FORT MORGAN FORT MORGAN I-76 INTERCHANGE 13000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

052B 87.16 87.90 FORT MORGAN I-76 INTERCHANGE MORGAN CR T 5800 2 Both Anytime Anytime

6 PM to 7 AM

9 AM to Noon

Anytime Anytime 6 PM to 10 AM

052B 87.90 88.47 MORGAN CR T MORGAN CR T.5 4300 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

052B 88.47 91.07 MORGAN CR T.5 MORGAN CR W 2200 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

052B 91.07 111.54 MORGAN CR W SH 14 RAYMER 1200 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

055A 0.00 5.66 SH 138 CROOK BEGIN LOGAN CR 81 1000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

056B 2.90 4.49 MEADOWLARK DRIVE 2ND ST BERTHOUD 8000 2 Both Anytime 6 PM to 4 PM 7 PM to 6 AM Anytime Anytime 7 PM to 9 AM

056B 4.49 9.53 2ND ST BERTHOUD I-25 BERTHOUD INTERCHANGE 7400 2 Both Anytime 6 PM to 4 PM 7 PM to 6 AM Anytime Anytime 7 PM to 10 AM

057A 0.00 0.53 I-70 STRATTON US 24 STRATTON 1400 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

059A 0.00 67.14 KIT CARSON/WASHINGTON COUNTY LINE US 36 NEAR COPE 1200 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

059B 74.47 173.31 US 36 WEST OF JOES SH 138 SEDGEWICK 3000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

060A 0.00 4.96 US 287 CAMPION LARIMER CR 7 4600 2 Both Anytime Anytime 6 PM to 4 PM Anytime Anytime Anytime

060B 6.00 9.86 I-25 INTERCHANGE JOHNSTOWN MILLIKEN ANGOVE AVE JOHNSTOWN 14000 2 Both

7 PM to 6 AM

9 AM to 2 PM

7 PM to 6 AM 9 PM to 5 AM 5 PM to Noon 7 PM to 10 AM 10 PM to 7 AM

060B 9.86 14.70 ANGOVE AVE JOHNSTOWN WELD CR 48 11000 2 Both

6 PM to 7 AM

9 AM to 4 PM

7 PM to 6 AM

8 AM to 2 PM

9 PM to 5 AM Anytime Anytime 8 PM to 8 AM

060B 14.70 20.20 WELD CR 48 US 85 S/O GILCREST 7000 2 Both Anytime 6 PM to 4 PM 7 PM to 6 AM Anytime Anytime 7 PM to 11 AM

061A 0.00 40.99 US 34 OTIS US 6 STERLING 3000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

063A 0.00 56.41 US 36 ANTON US 6 ATWOOD 1900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

066B 28.69 30.00 US 36 LYONS MP 30 11000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

066B 30.00 34.84 MP 30 JOTIPA DR LONGMONT 12000 2 Both 5 PM to 6 AM 9 PM to 5 AM 9 PM to 5 AM Anytime 6 PM to 11 AM 9 PM to 8 AM

066B 34.84 35.08 JOTIPA DR LONGMONT HOVER ST LONGMONT 15000 3 Both

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

066B 35.08 36.51 HOVER ST LONGMONT HILLCREST ST / PRATT ST LONGMONT 29000 2 Both 9 PM to 5 AM 10 PM to 5 AM 11 PM to 5 AM 9 PM to 8 AM 10 PM to 7 AM 11 PM to 6 AM

066B 36.51 36.83 HILLCREST ST / PRATT ST LONGMONT ERFERT ST LONGMONT EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

066B 36.83 36.51 ERFERT ST LONGMONT HILLCREST ST / PRATT ST LONGMONT WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

066B 36.83 37.66 ERFERT ST LONGMONT N 115TH ST LONGMONT 19000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 10 PM to 7 AM

066B 37.66 37.95 N 115TH ST LONGMONT PACE ST LONGMONT 19000 3 Both

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

066B 37.95 38.92 PACE ST LONGMONT BOULDER WELD COUNTY LINE ROAD 21000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 10 PM to 7 AM

066B 38.92 42.74 BOULDER WELD COUNTY LINE ROAD I-25 LONGMONT INTERCHANGE 20000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 10 PM to 7 AM

066B 42.74 44.92 I-25 LONGMONT INTERCHANGE WELD CR 13 17000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 9 AM 8 PM to 9 AM 10 PM to 7 AM

066B 44.92 51.39 WELD CR 13 US 85 PLATTEVILLE 11000 2 Both

6 PM to 6 AM

8 AM to 3 PM

7 PM to 6 AM

9 AM to 2 PM

9 PM to 5 AM Anytime 6 PM to 11 AM 9 PM to 8 AM

070A 332.02 340.40 STRASBURG LINCOLN / JOHN BOUNDARY EB Anytime Anytime Anytime Anytime Anytime Anytime

070A 340.40 332.00 LINCOLN / JOHN BOUNDARY STRASBURG WB Anytime Anytime Anytime Anytime Anytime Anytime

412000

23000 4

Page C-7

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

070A 340.40 361.70 LINCOLN / JOHN BOUNDARY LIMON EB Anytime Anytime Anytime Anytime Anytime Anytime

070A 361.70 340.40 LIMON LINCOLN / JOHN BOUNDARY WB Anytime Anytime Anytime Anytime Anytime Anytime

070A 361.70 405.07 LIMON SH 59 / SEIBERT EB Anytime Anytime Anytime Anytime Anytime Anytime

070A 405.07 361.70 SH 59 / SEIBERT LIMON WB Anytime Anytime Anytime Anytime Anytime Anytime

070A 405.07 449.59 SH 59 / SEIBERT KANSAS STATE LINE EB Anytime Anytime Anytime Anytime Anytime Anytime

070A 449.59 405.07 KANSAS STATE LINE SH 59 / SEIBERT WB Anytime Anytime Anytime Anytime Anytime Anytime

070O 0.00 0.35 US 40 AGATE I-70 AGATE 250 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

070P 0.00 0.53 I-70 VONA US 24 VONA 200 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

070Q 0.14 0.38 US 24 BURLINGTON I-70 BURLINGTON 1900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

071C 48.65 101.06 CROWLEY / LINCOLN COUNTY LINE SH 24 IN LIMON 2800 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

071D 102.00 138.01 US 24 (3RD ST) IN LIMON US 36 IN LAST CHANCE 2100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

071D 138.01 174.36 US 36 IN LAST CHANCE US 34 BRUSH 2700 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

071E 175.49 176.46 US 34 BRUSH I-76 BRUSH INTERCHANGE 5700 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

071E 176.46 201.64 I-76 BRUSH INTERCHANGE SH 14 WELD COUNTY 1700 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

071F 205.53 232.82 SH 14 WELD COUNTY NEBRASKA STATE LINE 1100 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

072B 32.33 32.86 SH 119 NEDERLAND FOREST RD NEDERLAND 4700 2 Both Anytime Anytime 5 PM to 11 AM Anytime Anytime 5 PM to 10 AM

072B 32.86 54.00 FOREST RD NEDERLAND SH 7 RAYMOND 2400 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

076A 25.15 89.66 LOCHBUIE INTERCHANGE SH 71 / BRUSH 25000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

076A 89.66 184.14 SH 71 / BRUSH NEBRASKA STATE LINE 15000 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

076B 0.00 0.31 SH 76 INTERCHANGE KEENSBURG ELM ST KEENESBURG 4300 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

079B 18.93 23.89 168TH AVENUE PROSPECT VALLEY, SH 52 1500 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

085C 236.03 241.59 ADAMS / WELD COUNTY LINE SH 52 FT LUPTON NB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

6 PM to 3 PM 6 PM to 3 PM 6 PM to 3 PM

085C 241.59 236.03 SH 52 FT LUPTON ADAMS / WELD COUNTY LINE SB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

5 PM to Noon 5 PM to Noon 5 PM to Noon

085C 241.59 265.85 SH 52 FT LUPTON US 34 NB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

6 PM to 4 PM 6 PM to 4 PM 6 PM to 4 PM

085C 265.85 241.59 US 34 SH 52 FT LUPTON SB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

085E 0.00 1.28 SH 52 FORT LUPTON BUSINESS LOOP US 85 4700 2 Both Anytime Anytime 6 PM to 4 PM Anytime Anytime Anytime

085F 0.00 1.38 SH 66 PLATEVILLE END US 85 PLATEVILLE BUS LOOP 1400 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

085G 0.00 1.63 SH 85 BUSINESS LOOP GREELEY US 34 BUSINESS LOOP GREELEY 18000 4 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

085H 0.00 2.24 US 34 BUSINESS LOOP GREELEY END US 85 GREELEY BUS LOOP 14000 4 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

085L 265.85 266.65 US 34 22ND ST GREELEY NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

085L 266.65 265.85 22ND ST GREELEY US 34 SB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

Anytime Anytime Anytime

085L 266.65 268.23 22ND ST GREELEY 8TH STREET NB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

Anytime Anytime Anytime

085L 268.23 266.65 8TH STREET 22ND ST GREELEY SB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

Anytime Anytime Anytime

30000 5

30000 4

415000

30000 4

15000

10000

33000 4

Page C-8

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

085L 268.23 270.25 8TH ST GREELEY GREELEY BUS RTE OVERPASS NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

085L 270.25 268.23 GREELEY BUS RTE OVERPASS 8TH ST GREELEY SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

085L 270.25 272.48 GREELEY BUS RTE OVERPASS SH 392 LUCERNE NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

085L 272.48 270.25 SH 392 LUCERNE GREELEY BUS RTE OVERPASS SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

085L 272.48 280.28 SH 392 LUCERNE 1ST AVE AULT NB Anytime Anytime Anytime Anytime Anytime Anytime

085L 280.28 272.48 1ST AVE AULT SH 392 LUCERNE SB Anytime Anytime Anytime Anytime Anytime Anytime

085L 280.28 283.40 1ST AVE AULT S/O MAIN AVE PIERCE 4800 2 Both Anytime Anytime

6 PM to 6 AM

8 AM to 3 PM

Anytime Anytime 6 PM to 3 PM

085L 283.40 284.10 S/O MAIN AVE PIERCE N/O WELD CR 90 PIERCE NB Anytime Anytime Anytime Anytime Anytime Anytime

085L 284.10 283.40 N/O WELD CR 90 PIERCE S/O MAIN AVE PIERCE SB Anytime Anytime Anytime Anytime Anytime Anytime

085L 284.10 288.53 N/O WELD CR 90 PIERCE 4TH ST NUNN 4500 2 Both Anytime Anytime

6 AM to 6 PM

7 AM to 3 PM

Anytime Anytime Anytime

085L 288.53 309.54 4TH ST NUNN WYOMING STATE LINE 4100 2 Both Anytime Anytime 6 PM to 4 PM Anytime Anytime Anytime

086A 12.26 23.13 CREST OF 3.9% GRADE UTE AVE IN KIOWA 13000 2 Both

7 PM to 7 AM

9 AM to Noon

7 PM to 7 AM 9 PM to 6 AM 6 PM to 9 AM 7 PM to 8 AM 9 PM to 7 AM

086A 23.13 27.72 UTE AVE IN KIOWA ELBERT CR 61.6 EB Anytime Anytime Anytime Anytime Anytime Anytime

086A 27.72 23.13 ELBERT CR 61.6 UTE AVE IN KIOWA WB Anytime Anytime Anytime Anytime Anytime Anytime

086A 27.72 59.00 ELBERT CR 61.6 I-70 INTERCHANGE (#352) 1800 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

093A 11.78 12.00 SH 128 E BOULDER COUNTY END SB PASSING LANE 19000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 9 AM 11 PM to 7 AM

093A 12.00 13.62 END SB PASSING LANE SH 170 MARSHALL 19000 3 Both

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

093A 13.62 15.32 SH 170 MARSHALL GREENBRIER BLVD BOULDER NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

093A 15.32 13.62 GREENBRIER BLVD BOULDER SH 170 MARSHALL SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

093A 15.32 16.33 GREENBRIER BLVD BOULDER TABLE MESA DR BOULDER NB

9 PM to 5 AM

Noon to 3 PM

9 PM to 5 AM

Noon to 3 PM

9 PM to 5 AM

Noon to 3 PM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

093A 16.33 15.32 TABLE MESA DR BOULDER GREENBRIER BLVD BOULDER SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

1 PM to 11 AM 1 PM to 11 AM 1 PM to 11 AM

093A 16.33 17.42 TABLE MESA DR BOULDER US 36E / BASELINE RD BOULDER NB

9 PM to 5 AM

Noon to 4 PM

9 PM to 5 AM

Noon to 4 PM

9 PM to 5 AM

Noon to 4 PM

Anytime Anytime Anytime

093A 17.42 16.33 US 36E / BASELINE RD BOULDER TABLE MESA DR BOULDER SB

9 PM to 5 AM

Noon to 4 PM

9 PM to 5 AM

Noon to 4 PM

9 PM to 5 AM

Noon to 4 PM

Anytime Anytime Anytime

093A 17.42 17.78 US 36E / BASELINE RD BOULDER 20TH ST BOULDER NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

093A 17.78 17.42 20TH ST BOULDER US 36E / BASELINE RD BOULDER SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

5 PM to 10 AM 5 PM to 10 AM 5 PM to 10 AM

093A 17.78 18.72 20TH ST BOULDER ARAPAHOE AVE BOULDER NB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

093A 18.72 17.78 ARAPAHOE AVE BOULDER 20TH ST BOULDER SB

9 PM to 5 AM

2 PM to 4 PM

9 PM to 5 AM

2 PM to 4 PM

9 PM to 5 AM

2 PM to 4 PM

2 PM to Noon 2 PM to Noon 2 PM to Noon

093A 18.72 18.85 ARAPAHOE AVE BOULDER SH 119 / SH 7 BOULDER NB

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

5 PM to 3 PM 5 PM to 3 PM 5 PM to 3 PM

093A 18.85 18.72 SH 119 / SH 7 BOULDER ARAPAHOE AVE BOULDER SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

094A 35.01 86.00 EL PASO / LINCOLN COUNTY LINE US 40 AT AROYA 530 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

113A 0.00 18.83 SH 138 ILIFF NEBRASKA STATE LINE 1600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

119A 22.10 36.47 GILPIN BOULDER COUNTY LINE BOULDER CR 122 7000 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 2 PM to Noon 4 PM to 11 AM 7 PM to 9 AM

119A 36.47 38.98 BOULDER CR 122 BOULDER CR 118 5900 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime 7 PM to 7 AM

3000

17000

29000

36000

44600

12000

17000

634000

27000 4

430000

Page C-9

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

119A 38.98 40.93 BOULDER CR 118 PEARL ST BOULDER 8100 2 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 6 PM to 4 PM 6 PM to 2 PM 9 PM to 7 AM

119A 40.93 41.89 PEARL ST BOULDER BROADWAY BOULDER 19000 4 Both 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM Anytime Anytime Anytime

119B 44.24 44.98 US 36 BOULDER FOOTHILLS PARKWAY INTERCHANGE EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 2 PM 9 PM to 2 PM 9 PM to 2 PM

119B 44.98 44.24 FOOTHILLS PARKWAY INTERCHANGE US 36 BOULDER WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

119B 44.98 46.18 FOOTHILLS PARKWAY INTERCHANGE JAY ROAD BOULDER EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 1 PM 9 PM to 1 PM 9 PM to 1 PM

119B 46.18 44.98 JAY ROAD BOULDER FOOTHILLS PARKWAY INTERCHANGE WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to Noon 9 PM to Noon 9 PM to Noon

119B 46.18 56.25 JAY ROAD BOULDER US 287 LONGMONT EB

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 5 AM

9 AM to 2 PM

9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

119B 56.25 46.18 US 287 LONGMONT JAY ROAD BOULDER WB

9 PM to 5 AM

Noon to 2 PM

9 PM to 5 AM

Noon to 2 PM

9 PM to 5 AM

Noon to 2 PM

9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

119B 56.25 57.32 US 287 LONGMONT S MARTIN ST LONGMONT EB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 2 PM 9 PM to 2 PM 9 PM to 2 PM

119B 57.32 56.25 S MARTIN ST LONGMONT US 287 LONGMONT WB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 2 PM 9 PM to 2 PM 9 PM to 2 PM

119B 57.32 59.09 S MARTIN ST LONGMONT 3RD AVE LONGMONT EB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 1 PM 9 PM to 1 PM 9 PM to 1 PM

119B 59.09 57.32 3RD AVE LONGMONT S MARTIN ST LONGMONT WB

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to Noon 9 PM to Noon 9 PM to Noon

119C 59.09 63.64 3RD AVE LONGMONT I-25 LONGMONT INTERCHANGE EB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 11 AM 9 PM to 11 AM 9 PM to 11 AM

119C 63.64 59.09 I-25 LONGMONT INTERCHANGE 3RD AVE LONGMONT WB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 10 AM 9 PM to 10 AM 9 PM to 10 AM

138A 0.00 0.55 US 6 STERLING (BEGIN NB 1-WAY) BROADWAY ST STERLING (END NB 1-WAY) 4400 3 NB Anytime Anytime Anytime Anytime Anytime Anytime

138A 0.55 3.33 SERVICE RD & 2ND ST STERLING LOGAN CR 43.5 4600 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

138A 3.33 57.76 LOGAN CR 43.5 PLUM ST JULESBURG 2600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

138A 57.76 58.26 PLUM ST JULESBURG ASH ST JULESBURG 2200 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

138A 58.26 59.82 ASH ST JULESBURG NEBRASKA STATE LINE 1900 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

138Z 0.00 0.61 BROADWAY STREET STERLING (BEGIN SB 1-WAY) US HIGHWAY 6 (END SB 1-WAY) 4600 3 SB Anytime Anytime Anytime Anytime Anytime Anytime

144A 0.00 26.89 I-76 W/O WIGGINS MORGAN CR 16.8 2400 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

144A 26.89 28.80 MORGAN CR 16.8 SH 52 5000 2 Both Anytime Anytime

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

157A 0.00 4.53 US 36 BOULDER SH 119 BOULDER NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 11 AM 9 PM to 11 AM 9 PM to 11 AM

157A 4.53 0.00 SH 119 BOULDER US 36 BOULDER SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 9 PM to 9 AM 9 PM to 9 AM 9 PM to 9 AM

170A 0.00 2.16 BOULDER CR ES2 SENDA ROSCOSA ST ELDORADO SPRINGS 1300 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

170A 2.16 3.06 SENDA ROSCOSA ST ELDORADO SPRINGS S CHERRYVALE RD BOULDER 6100 2 Both Anytime Anytime 9 PM to 5 AM Anytime Anytime 4 PM to Noon

170A 3.06 5.99 S CHERRYVALE RD BOULDER 76TH AVENUE 21000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 11 PM to 7 AM

170A 5.99 6.68 76TH AVENUE BEGIN 4-LANE HWY 21000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 7 PM to 9 AM 8 PM to 8 AM 11 PM to 7 AM

170A 6.68 6.91 BEGIN 4-LANE HWY US 36 SUPERIOR EB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

Anytime Anytime Anytime

170A 6.91 6.68 US 36 SUPERIOR BEGIN 4-LANE HWY WB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

Anytime Anytime Anytime

257A 0.00 5.15 US 60 MILLIKEN US 34 WELD COUNTY 8600 2 Both

6 PM to 7 AM

8 AM to 4 PM

6 PM to 6 AM

8 AM to 3 PM

7 PM to 6 AM Anytime Anytime 6 PM to 11 AM

257A 5.15 10.60 US 34 WELD COUNTY SH 392B / HOLLISTER LAKE RD WINDSOR 13000 2 Both

6 PM to 6 AM

9 AM to 2 PM

7 PM to 6 AM

9 AM to 11 AM

8 PM to 5 AM Anytime Anytime 7 PM to 8 AM

30000

25000

53000 4

439000

30000

38000

51000

58000

Page C-10

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

257A 10.60 11.14 SH 392B / HOLLISTER LAKE RD WINDSOR 2ND STREET WINDSOR NB Anytime Anytime Anytime Anytime Anytime Anytime

257A 11.14 10.60 2ND STREET WINDSOR SH 392B / HOLLISTER LAKE RD WINDSOR SB Anytime Anytime Anytime Anytime Anytime Anytime

257A 11.14 11.62 2ND STREET WINDSOR SH 392A / MAIN ST / 7TH ST WINDSOR 16000 2 Both

7 PM to 6 AM

9 AM to 11 AM

7 PM to 6 AM 9 PM to 5 AM Anytime 6 PM to 11 AM 8 PM to 8 AM

257A 11.62 14.53 SH 392A / MAIN ST / 7TH ST WINDSOR WELD CR 74 6900 2 Both Anytime

6 PM to 7 AM

8 AM to 4 PM

7 PM to 6 AM

9 AM to 11 AM

Anytime Anytime Anytime

257A 14.53 18.49 WELD CR 74 SH 14 5100 2 Both Anytime Anytime

6 PM to 6 AM

8 AM to 2 PM

Anytime Anytime Anytime

257B 0.04 1.15 SH 257A / WELD CR 19 US 34D / 10TH ST 170 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

287B 122.78 133.24 KIOWA / CHEYENNE COUNTY LINE SH 40 4200 2 Both Anytime Anytime 6 PM to 9 AM Anytime Anytime 5 PM to 11 AM

287C 304.32 305.36 SH 7/W BASELINE RD BOULDER SH 7/ARAPAHOE RD BOULDER NB

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

7 PM to 11 AM 7 PM to 11 AM 7 PM to 11 AM

287C 305.36 304.32 SH 7/ARAPAHOE RD BOULDER SH 7/W BASELINE RD BOULDER SB

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

6 PM to 10 AM 6 PM to 10 AM 6 PM to 10 AM

287C 305.36 309.39 SH 7/ARAPAHOE RD BOULDER BOULDER CR 38 BOULDER COUNTY NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

6 PM to 1 PM 6 PM to 1 PM 6 PM to 1 PM

287C 309.39 305.36 BOULDER CR 38 BOULDER COUNTY SH 7/ARAPAHOE RD BOULDER SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to Noon 5 PM to Noon 5 PM to Noon

287C 309.39 310.39 BOULDER CR 38 BOULDER COUNTY SH 52 LONGMONT NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 310.39 309.39 SH 52 LONGMONT BOULDER CR 38 BOULDER COUNTY SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 310.39 311.42 SH 52 LONGMONT NIWOT RD LONGMONT NB

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

9 PM to 5 AM

10 AM to 1 PM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

287C 311.42 310.39 NIWOT RD LONGMONT SH 52 LONGMONT SB

9 PM to 5 AM

10 AM to 4 PM

9 PM to 5 AM

10 AM to 4 PM

9 PM to 5 AM

10 AM to 4 PM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

287C 311.42 314.56 NIWOT RD LONGMONT JERSEY AVE LONGMONT NB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

287C 314.56 311.42 JERSEY AVE LONGMONT NIWOT RD LONGMONT SB

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

9 PM to 5 AM

10 AM to 3 PM

5 PM to 1 PM 5 PM to 1 PM 5 PM to 1 PM

287C 314.56 315.23 JERSEY AVE LONGMONT BOSTON AVE LONGMONT NB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

5 PM to 2 PM 5 PM to 2 PM 5 PM to 2 PM

287C 315.23 314.56 BOSTON AVE LONGMONT JERSEY AVE LONGMONT SB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to 1 PM 5 PM to 1 PM 5 PM to 1 PM

287C 315.23 315.66 BOSTON AVE LONGMONT 3RD AVE LONGMONT NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 315.66 315.23 3RD AVE LONGMONT BOSTON AVE LONGMONT SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 315.66 316.33 3RD AVE LONGMONT 9TH AVE LONGMONT NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

287C 316.33 315.66 9TH AVE LONGMONT 3RD AVE LONGMONT SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

287C 316.33 316.85 9TH AVE LONGMONT MOUNTAIN VIEW AVE LONGMONT NB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

5 PM to 1 PM 5 PM to 1 PM 5 PM to 1 PM

287C 316.85 316.33 MOUNTAIN VIEW AVE LONGMONT 9TH AVE LONGMONT SB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to Noon 5 PM to Noon 5 PM to Noon

287C 316.85 317.87 MOUNTAIN VIEW AVE LONGMONT 21ST AVE LONGMONT NB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to 1 PM 5 PM to 1 PM 5 PM to 1 PM

287C 317.87 316.85 21ST AVE LONGMONT MOUNTAIN VIEW AVE LONGMONT SB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to Noon 5 PM to Noon 5 PM to Noon

287C 317.87 318.33 21ST AVE LONGMONT SH 66 LONGMONT NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 318.33 317.87 SH 66 LONGMONT 21ST AVE LONGMONT SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 318.33 331.65 SH 66 LONGMONT 19TH ST SOUTHEAST LOVELAND NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to 3 PM 5 PM to 3 PM 5 PM to 3 PM

287C 331.65 318.33 19TH ST SOUTHEAST LOVELAND SH 66 LONGMONT SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 331.65 332.67 19TH ST SOUTHEAST LOVELAND S CLEVELAND AVE LOVELAND NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 332.67 331.65 S CLEVELAND AVE LOVELAND 19TH ST SOUTHEAST LOVELAND SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

28000

23000

30000

413000

40000

32000

24000

28000

24000 4

24000

31000

25000

26000

Page C-11

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

287C 332.67 333.41 S CLEVELAND AVE LOVELAND 6TH ST LOVELAND 12000 2 NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 333.41 334.31 6TH ST LOVELAND 17TH AVE LOVELAND 17000 3 NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287C 334.31 339.13 17TH AVE LOVELAND SH 392 NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 6 PM to Noon 6 PM to Noon 6 PM to Noon

287C 339.13 334.31 SH 392 17TH AVE LOVELAND SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 6 PM to 11 AM 6 PM to 11 AM 6 PM to 11 AM

287C 339.13 342.21 SH 392 HARMONY ROAD FORT COLLINS NB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

287C 342.21 339.13 HARMONY ROAD FORT COLLINS SH 392 SB 9 PM to 5 AM 9 PM to 5 AM 9 PM to 5 AM 7 PM to 11 AM 7 PM to 11 AM 7 PM to 11 AM

287C 342.21 345.99 HARMONY ROAD FORT COLLINS LAUREL ST FORT COLLINS NB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

3 PM to 9 AM 3 PM to 9 AM 3 PM to 9 AM

287C 345.99 342.21 LAUREL ST FORT COLLINS HARMONY ROAD FORT COLLINS SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

5 PM to Noon 5 PM to Noon 5 PM to Noon

287C 345.99 346.63 LAUREL ST FORT COLLINS MOUNTAIN AVE FORT COLLINS NB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

287C 346.63 345.99 MOUNTAIN AVE FORT COLLINS LAUREL ST FORT COLLINS SB

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

9 PM to 5 AM

9 AM to 1 PM

6 PM to 11 AM 6 PM to 11 AM 6 PM to 11 AM

287C 346.63 348.63 MOUNTAIN AVE FORT COLLINS SH 1 / TERRY LAKE RD NB

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

9 PM to 5 AM

9 AM to Noon

5 PM to 9 AM 5 PM to 9 AM 5 PM to 9 AM

287C 348.63 346.63 SH 1 / TERRY LAKE RD MOUNTAIN AVE FORT COLLINS SB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

7 PM to 11 AM 7 PM to 11 AM 7 PM to 11 AM

287C 348.63 350.21 SH 1 / TERRY LAKE RD LARIMER CR 54G LA PORTE NB Anytime Anytime Anytime Anytime Anytime Anytime

287C 350.21 348.63 LARIMER CR 54G LA PORTE SH 1 / TERRY LAKE RD SB Anytime Anytime Anytime Anytime Anytime Anytime

287C 350.21 352.35 LARIMER CR 54G LA PORTE OVERLAND TRAIL 7400 2 Both Anytime Anytime 7 PM to 7 AM 4 PM to 11 AM 6 PM to 10 AM 8 PM to 8 AM

287C 352.35 367.01 OVERLAND TRAIL LARIMER CR 74E 8800 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

287C 367.01 367.84 LARIMER CR 74E LARIMER CR 80 4800 2 Both Anytime Anytime 6 PM to 10 AM Anytime Anytime 7 PM to 9 AM

287C 367.84 385.22 LARIMER CR 80 WYOMING STATE LINE 4100 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

287Z 0.00 0.17 BEGIN 1-WAY SOUTHBOUND (17TH AVE) 16TH STREET LOVELAND 15000 2 SB

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

9 PM to 5 AM

9 AM to 11 AM

5 PM to Noon 5 PM to Noon 5 PM to Noon

287Z 0.17 1.27 16TH STREET LOVELAND 2ND ST LOVELAND 13000 3 SB

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

9 PM to 5 AM

9 AM to 4 PM

Anytime Anytime Anytime

287Z 1.27 1.76 2ND ST LOVELAND END 1-WAY SOUTHBOUND (5TH ST SE) 12000 2 SB

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

9 PM to 5 AM

9 AM to 3 PM

Anytime Anytime Anytime

385B 135.41 149.70 KIOWA / CHEYENNE COUNTY LINE US 40 IN CHEYENNE WELLS 610 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385C 150.31 207.51 US 40 IN CHEYENNE WELLS KIT CARSON/YUMA CTY LINE 5300 2 Both Anytime Anytime

6 PM to 7 AM

8 AM to Noon

Anytime Anytime Anytime

385C 207.51 216.86 KIT CARSON/YUMA CTY LINE US 36 WEST 800 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385D 219.37 241.12 US 36 EAST YUMA CR 33 920 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385D 241.12 278.93 YUMA CR 33 JOHNSON ST IN HOLYOKE 4000 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385D 278.93 279.42 JOHNSON ST IN HOLYOKE FURRY ST HOLYOKE 3700 4 Both Anytime Anytime Anytime Anytime Anytime Anytime

385D 279.42 309.14 US 6 HOLYOKE I-76 JULESBURG INTERCHANGE 2600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385D 309.14 311.00 I-76 JULESBURG INTERCHANGE US 138 JULESBURG 1600 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

385E 313.69 317.63 JULESBURG AIRPORT CO-NE STATE LINE 530 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

37000

35000

42000

27000

30000

14000

Page C-12

CDOT Region 4 Appendix C - Spring/Summer Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

Spring/Summer: April – October, Fall/Winter: November – March

State

Highway

Number

Beginning of

Section MP#

End of

Section

MP #

Beginning of Section - Description End of Section - Description Dir.

Spring/Summer Weekday Allowed Hours: Spring/Summer Weekend Allowed Hours:

# of

Lanes

2018 Volume

(AADT)

392A 95.31 100.00 US 287 I-25 WINDSOR INTERCHANGE 16000 2 Both 9 PM to 5 PM 9 PM to 5 AM 10 PM to 5 AM 9 PM to 9 AM 9 PM to 8 AM 11 PM to 7 AM

392A 100.00 104.46 I-25 WINDSOR INTERCHANGE 7TH ST IN WINDSOR (SH 257 NORTH) 21000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 9 PM to 8 AM 9 PM to 7 AM 11 PM to 6 AM

392B 105.44 107.42 SH 257 SOUTH WELD CR 23 8900 2 Both 6 PM to 4 PM

6 PM to 6 AM

8 AM to 3 PM

7 PM to 5 AM Anytime Anytime 6 PM to 11 AM

392B 107.42 112.57 WELD CR 23 WELD CR 33 8500 2 Both 6 PM to 4 PM

6 PM to 6 AM

8 AM to 3 PM

7 PM to 5 AM Anytime Anytime 7 PM to 10 AM

392B 112.57 117.61 WELD CR 33 WELD CR 43 7800 2 Both 6 PM to 4 PM

6 PM to 6 AM

8 AM to 3 PM

7 PM to 5 AM Anytime Anytime 7 PM to 10 AM

392B 117.61 141.58 WELD CR 43 WELD CR 55 4000 2 Both Anytime Anytime 6 PM to 4 PM Anytime Anytime Anytime

402A 0.00 4.23 US 287 I-25 EAST FRONTAGE ROAD 19000 2 Both 9 PM to 5 AM 9 PM to 5 AM 10 PM to 5 AM 9 PM to 9 AM 9 PM to 8 AM 10 PM to 7 AM

Page C-13

APPENDIX D

FALL/WINTER SCHEDULES

Region 4 Lane Closure Strategy, 4

Ed.

Appendix D

APPENDIX D. FALL/WINTER ALLOWABLE

CLOSURE HOURS

CDOT Region 4 Appendix D - Fall/Winter Single-Lane Closure Allowed Hours Lane Closure Strategy - 4th Ed.

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

0.0 - 0.5 mile

Lane Closure

0.5 - 1.0 mile

Lane Closure

> 1.0 mile

Lane Closure

001A 0.00 0.35 US 287 IN FORT COLLINS LARIMER CR 50 E 9100 2 Both Anytime Anytime 7 PM to 6 AM Anytime Anytime 7 PM to 9 AM

001A 0.35 3.71 LARIMER CR 50 E LARIMER CR 58 7400 2 Both Anytime Anytime

6 PM to 7 AM

9 AM to 11 AM

Anytime Anytime 6 PM to 10 AM

001A 3.71 9.41 LARIMER CR 58 1ST ST WELLINGTON 4700 2 Both Anytime Anytime Anytime Anytime Anytime Anytime

001A 9.41 10.05 1ST ST WELLINGTON I-25 (WELLINGTON INTERCHANGE) 10000 3 Both Anytime Anytime Anytime Anytime Anytime Anytime

006I 343.72 346.70 I-76 MORGAN CR 3 INTERCHANGE EASTBOUND I-76 ON RAMP WIGGINS 3800 2 Both Anytime Anytime 9 PM to 4 PM Anytime Anytime Anytime