2018 E-470 MASTER PLAN Plan...FELSBURG H O LT & ULLEVIG 2018 E-470 MASTER PLAN Prepared for Prepared...

FELSBURGH O L T &U L L E V I G

2018 E-470 MASTER PLAN

Prepared for Prepared by

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QuincyReservoir

Cherry CreekReservoir

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ADAMS COUNTY

DENVER COUNTY

TOLL INTERCHANGENO TOLL INTERCHANGE

E-470 MAINLINE TOLL PLAZAA-E

E-470 ROUTE

SERVICE CENTER

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2018 E-470 Master Plan

Prepared for:

Prepared by:

6300 South Syracuse Way, Suite 600 Centennial, CO 80111

303/721-1440

Project Manager: Elliot Sulsky Project Engineers:

John Dibble Tyler Spurlock

FHU Reference No. 112010-23

December 2017

Page i

TABLE OF CONTENTS

Page

1.1 E-470 Description .................................................................................................. 1 1.1.1 Facility ...................................................................................................... 1 1.1.2 Historical Background ............................................................................... 1 1.1.3 Organizational Structure ........................................................................... 1 1.1.4 Budgeting Process .................................................................................... 1

1.2 Purpose of Master Plan ......................................................................................... 3

2.1 Roadway Characteristics ....................................................................................... 4 2.2 Traffic Conditions ................................................................................................... 4

2.2.1 Traffic Volumes ......................................................................................... 4 2.2.2 Operations Analysis .................................................................................. 6 2.2.3 Safety Assessment ................................................................................... 8

3.1 Corridor Growth Assessment ................................................................................. 9 3.2 Planned Improvements .......................................................................................... 9 3.3 Traffic Forecasts ...................................................................................................11 3.4 Future Operations .................................................................................................11

3.4.1 E-470 Mainline .........................................................................................11 3.4.2 Interchanges ............................................................................................15

3.5 Alternative Futures ................................................................................................17

4.1 Road Widening .....................................................................................................18 4.2 Interchange Improvements ...................................................................................22 4.3 New Interchanges .................................................................................................28

5.1 Capital Roadway Improvement Plan .....................................................................30 5.2 Other Capital Costs ..............................................................................................30 5.3 Inflated Cost Estimates .........................................................................................30 5.4 Renewal and Replacement ...................................................................................30 5.5 Total Master Plan Costs ........................................................................................36 5.6 Master Plan Updates ............................................................................................36

Page ii

List of Appendices Appendix A Interchange Turning Movement Volumes Appendix B Safety Assessment Appendix C Programmed Regional Highway Improvements Appendix D Cost Estimation Worksheets List of Figures Figure 1. E-470 Vicinity Map .............................................................................................. 2 Figure 2. Existing Daily Traffic Volumes ............................................................................. 5 Figure 3. Level of Service Illustrations ............................................................................... 7 Figure 4. Influence Area and Major Development Plans ...................................................10 Figure 5. E-470 Traffic Forecasts ......................................................................................12 Figure 6. Cross-Street Traffic Forecasts ...........................................................................13 Figure 7. Future Widening Requirements ..........................................................................14 Figure 8. Illustrative Widening Program ............................................................................19 Figure 9. Interchange Improvement Needs .......................................................................29 Figure A-1. Existing Interchange Peak Hour Traffic Volumes Figure A-2. Existing Interchange Laneage and Levels of Service Figure A-3. 2040 Forecasted Interchange Peak Hour Traffic Volumes Figure A-4. 2040 No-Build Interchange Laneage and Levels of Service Figure A-5. 2040 Recommended Interchange Laneage and Levels of Service Figure B-1. Crash Distribution by Type ............................................................................... B-2 Figure B-2. Fixed Object Crash Distribution ........................................................................ B-2 Figure B-3. Mainline Crash Distribution by Type ................................................................. B-3 Figure B-4. Mainline Fixed Object Crash Distribution ......................................................... B-3 Figure B-5. Urban Flat Rolling Mountainous 6-Lane Divided Freeways .............................. B-5 Figure B-6. Urban Flat Rolling Mountainous 4-Lane Divided Freeways .............................. B-6 Figure B-7. Jordan Road, Northbound Terminal Crashes ................................................. B-13 Figure B-8. Jordan Road, Southbound Terminal Crashes ................................................ B-14 Figure B-9. Smoky Hill Road, Northbound Terminal Crashes ........................................... B-14 Figure B-10. Smoky Hill Road, Southbound Terminal Crashes........................................... B-15 Figure B-11. 120th Street, Northbound Terminal Crashes ................................................... B-16

Page iii

List of Tables Table 1. Factors for Level of Service Analysis .................................................................. 6 Table 2. Existing Level of Service Deficiencies – Ramp Terminal Intersection .................. 8 Table 3. Population and Employment Growth Forecasts .................................................. 9 Table 4. 2040 Interchange Ramp Terminal Level of Service Summary ............................15 Table 5. Mainline Improvement Summary ........................................................................20 Table 6. 2040 Ramp Terminal Level of Service Summary ...............................................22 Table 7. 2040 Interchange Improvement Needs ..............................................................25 Table 8. Capital Improvement Phasing and Cost Summary – 2017 Costs .......................31 Table 9. Summary of Roadway improvement Projects and Costs (in $2017) ...................33 Table 10. Capital Improvement Projects with Cost Inflation ...............................................34 Table 11. Renewal and Replacement Cost Summary ........................................................35 Table 12. Summary of Master Plan Costs: 2018-2040 .......................................................36 Table B-1. Crash History of E-470 from MP 0.00 to MP 46.38 by Year ............................. B-1 Table B-2. Corridor Crash Rate ......................................................................................... B-4 Table B-3. Segment Crash Analysis .................................................................................. B-7 Table B-4. Intersection Crashes ...................................................................................... B-12 Table B-5. Ramp Crashes ............................................................................................... B-17

INTRODUCTION 1.1 E-470 Description

E-470 is a 47-mile toll road in the eastern Denver metropolitan area, serving as the eastern circumferential highway connecting with I-25 in the southern and northern parts of the metro area. As shown on Figure 1, E-470 passes through the Colorado counties of Adams, Arapahoe and Douglas and the municipalities of Aurora, Brighton, Commerce City, Thornton, and Parker, representatives of which form the eight voting members of the E-470 Board of Directors. E-470 also passes through the City and County of Broomfield at the far north end and the City and County of Denver at Peña Boulevard.

1.1.1 Facility

E-470 consists of six through-lanes in the southern part of the corridor from South I-25 to Quincy Avenue, with the widening from Parker Road to Quincy Avenue having been completed earlier in 2017. The remainder of the toll road, north of Quincy Avenue, has four through-lanes. There is a total of 24 interchanges, including the I-25 interchanges on either end of the highway and 22 freeway or arterial roadway interchanges in between. Tolls are collected via the 810,000 customers with Express Toll Accounts and by license plate readers.

1.1.2 Historical Background

E-470 was built in four phases, beginning with the opening of the southernmost 5-mile segment between South I-25/C-470 and Parker Road in 1991. Phases II and III were completed in 1998-1999, extending the road northward to 120th Avenue. The final 12-mile phase between 120th Avenue and North I-25 was completed in 2003, with the Northwest Parkway toll road to the west of I-25 completed later in 2003.

1.1.3 Organizational Structure

Policy direction for the E-470 Public Highway Authority (PHA) is provided by a Board of Directors consisting of elected officials from each of the eight jurisdictions listed above. Staff leadership is provided by the Executive Director and Directors of Operations, Technology, Finance, and Engineering & Roadway Maintenance.

1.1.4 Budgeting Process

E-470 PHA budgeting is implemented through 2-year operating and 5-year capital budgeting cycles. The 2017 capital budget is approximately $79 million and the operating budget is $51.8 million.

Longer range financial and needs assessments are accomplished using traffic and revenue studies that have been prepared every two to three years projecting traffic, toll revenues and general E-470 capacity expansion needs over an approximate 20-year time horizon. The last three such studies are the 2017 E-470 Toll Rate Structure Traffic and Revenue Study, E-470 2014 Investment Grade Traffic and Revenue Study, and 2012 E-470 Potential Interchanges Traffic and Revenue Study, all prepared for the E-470 PHA by CDM Smith.

Figure 1. E-470 Vicinity Map

1.2 Purpose of Master Plan

Now more than 25 years since the opening of the first phase of E-470, E-470 is a mature facility entering into its second generation. The E-470 PHA has determined that it would be beneficial to begin a master planning process to identify, prioritize and guide capital rehabilitation and expansion needs for the facility. The purpose of this initial version of the E-470 Master Plan is to expand upon previous study efforts and consolidate planning that incorporates:

Long range planning horizon Close coordination with local and regional transportation planning Focus on individual interchanges (in addition to mainline E-470) Combines roadway and other asset investments

It is the E-470 PHA’s intention that the master plan will be a living document that will be updated annually or semi-annually to respond to changing conditions, including traffic volumes, growth and development in the corridor, local agency transportation planning, and evolving transportation technology.

EXISTING CONDITIONS 2.1 Roadway Characteristics

E-470 was originally constructed as a 4-lane toll road for its entire 47-mile length. One through lane has been added in each direction to create a 6-lane highway for the 13-mile southern segment between South I-25 and Quincy Avenue.

E-470 currently has a total of 24 interchanges. Freeway-to-freeway interchanges are at:

North I-25 I-76 (partial interchange) Pena Boulevard I-70 (includes freeway-to-freeway and arterial ramps via Gun Club Road) South I-25

Interchanges with arterial streets are at:

York Street (diamond) Colorado Boulevard (diamond) Quebec Street (diamond) US 85 (partial cloverleaf) 120th Avenue (diamond) 104th Avenue (diamond) 96th Avenue (diamond) 64th Avenue (diamond) 56th Avenue (diamond) 6th Parkway (diamond) Jewell Avenue (diamond) Quincy Avenue (diamond) Smoky Hill Road (diamond) Gartrell Road (diamond) Parker Road (partial cloverleaf) Jordan Road (diamond) Chambers Road (diamond) Peoria Street (diamond) Jamaica Street (partial diamond)

2.2 Traffic Conditions

2.2.1 Traffic Volumes

Existing average daily traffic volumes on E-470 and its major crossroads are shown on Figure 2. Volume data on E-470 represents 2016 data collected by the E-470 PHA and documented in the 2017 E-470 Toll Rate Structure Traffic and Revenue Study. Daily traffic volumes range from 56,600 vehicles per day near South I-25 to 28,700 in the north-central part of the corridor north of 56th Avenue. Current volumes reflect sharp increases over the past three years, with 3-year rises of 25 percent to more than 50 percent seen on different segments of the highway.

E-470 Master Plan Assistance 12-010-23 12/21/2017

Existing Daily Traffic VolumesFigure 2


30.0

31.3 31.731.8

30.936.0

38.0

41.5

45.2

41.5

41.5

28.9

28.7

29.5

29.5

40.2

41.4

43.4

38.9

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48.049.453.0

53.056.6

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= Daily Mainline Traffic Volumes (in thousands)

= Cross Street Daily Traffic Volumes (in thousands)

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Crossroad traffic volumes were assembled from a number of sources including Denver Regional Council of Governments (DRCOG), Colorado Department of Transportation (CDOT), counties and municipalities, and traffic studies prepared for corridor developments. In several cases, counts that were taken in earlier years or were taken at locations some distance from E-470 were adjusted to represent reasonable estimates of 2016-2017 crossroad volumes adjacent to E-470.

To evaluate traffic operations and improvement needs at interchanges, individual traffic movements during AM and PM peak hours are needed. That detailed information is provided in Appendix A, Figure A-1. The information was derived from the daily crossroads volumes, available peak hour counts from similar sources as listed above, and adjustment and estimation procedures as required to derive reasonable estimates as shown on the Appendix A maps.

2.2.2 Operations Analysis

Level of Service (LOS) is a standard scale (documented in the Highway Capacity Manual, 2016 by the Transportation Research Board) used to characterize traffic operations and congestion levels for freeways, signalized intersections, stop-controlled intersections and other roadway system components. Measurement considers factors such as speed, delay, traffic interruptions, safety, driver comfort, and density to determine peak hour LOS on a scale from A to F, with A representing free-flow conditions with minimal delay and F representing extreme congestion with traffic volumes exceeding roadway capacity. Figure 3 provides illustrations of LOS A through F conditions.

The E-470 PHA has set a standard of LOS C or better for its facility. This is a high LOS standard that is maintained to ensure that customers are provided with reliable service with minimal delays all hours of the day and throughout the year.

AM and PM peak hour traffic volumes for the peak month were developed for each segment using detailed data developed by CDM Smith and documented in the 2017 E-470 Toll Rate Structure Traffic and Revenue Study. Count data show that August is the peak month for E-470 traffic, with volumes approximately 14 percent higher than the annual average. To ensure that desired LOS is achieved throughout the year, average annual traffic was converted to an August level to assess capacity needs for the peak traffic month.

Mainline LOS were evaluated for peak hours based on existing traffic volumes for each segment of E-470 using Highway Capacity Software and using the LOS analysis factors shown on Table 1. Mainline E-470 LOS analysis shows that all segments are currently operating at the target LOS C or better during AM and PM peak hours during E-470’s peak traffic season.

Table 1. Factors for Level of Service Analysis

Annual Average to Peak Month Factor

Free Flow Speed Terrain Percent Heavy

Vehicles Peak Hour

Factor +14% 75 MPH Level 4% 0.9

It should be noted that this finding does not guarantee that drivers will not occasionally encounter higher levels of congestion that may be caused by such non-recurring conditions such as crashes, disabled vehicles or construction impacts.

Figure 3. Level of Service Illustrations

LOS were also calculated for E-470 interchanges, including ramps and ramp terminal intersections (see Appendix Figure A-2). Substandard current peak hour LOS were found at four interchanges, all associated with left-turns from exit ramps at unsignalized ramp terminal intersections as summarized in Table 2.

Table 2. Existing Level of Service Deficiencies – Ramp Terminal Intersection

Location Traffic Control Movement(s) Level of Service

AM/PM Peak Hours

Quebec St Interchange - North and South Intersections

STOP Signs Westbound Left Turn Eastbound Left Turn

f/f f/f

120th Ave Interchange – West and East Intersections

STOP Signs Southbound Left Turn Northbound Left Turn

f/f c/f

Quincy Ave Interchange – East and West Intersections

STOP Signs Southbound Left Turn Northbound Left Turn

f/f f/f

Gartrell Road Interchange – South Intersection

STOP Signs Eastbound Left Turn c/f

Based on these findings, adding traffic signals at ramp terminal intersections at these four interchanges is a short-range recommendation included in the capital improvements plan shown in this report. It should be noted that prior to installing traffic signals, all agencies are required to perform detailed traffic signal warrant analyses based on national signalization standards and poor LOS findings may or may not correspond to meeting signal warrants.

2.2.3 Safety Assessment

A high-level E-470 corridor safety assessment was completed as part of this initial E-470 Master Plan development. Crash history for the 5-year period from 2011 to 2015 was reviewed to determine how E-470’s safety record compares to similar highway facilities in Colorado and to identify any notable crash patterns that are susceptible to correction. The full safety assessment is provided as Appendix B.

The assessment concluded that E-470’s overall crash rate is below the typical rate seen on comparable facilities with comparable traffic volumes. No crash hot spots were identified as warranting immediate correction with stand-alone capital projects; however, some patterns were identified that should be considered along with future roadway design and traffic operational projects:

Continue to provide full width (12-foot) inside shoulders with E-470 widening projects Coordinate with municipalities and counties who operate ramp terminal traffic signals on

signal timing and signal design to address crash patterns Review the location of speed advisory signs at curves along the toll road

An additional note for stop-controlled intersections is that LOS worse than C is commonly found for some left-turns during peak hours and is generally accepted by drivers, so a LOS D threshold was used for unsignalized intersections in this plan rather that the stricter LOS C threshold for mainline capacity.

FORECASTED CONDITIONS Traffic forecasts were developed recently by the CDM Smith team for the 2017 E-470 Toll Rate Structure Traffic and Revenue Study. That study developed forecasts for the base years of 2018, 2021, and 2035 for E-470. To allow this master plan to provide the desired 20-year improvement plan and to make the plan compatible with long-range regional, county and municipal transportation plans, the 2035 forecasts were extrapolated to a 2040-time horizon.

3.1 Corridor Growth Assessment

To develop 2035 forecasts for the E-470 Toll Rate Structure Traffic and Revenue Study, Economic and Planning Systems (EPS) provided an independent assessment of the Denver Regional Council of Governments (DRCOG) demographic forecasts and made relatively modest modifications to the DRCOG forecasts for the E-470 influence area, shown on Figure 4. The map shows major anticipated commercial, residential and mixed-use development areas within the eastern part of the metro area. Major developments of all three types are planned throughout the entire E-470 corridor.

Table 3 summarizes the demographic forecasts for the entire DRCOG region and the E-470 influence area. Forecasts show a 38 percent increase in population and 44 percent increase in employment in the E-470 influence area between 2015 and 2035. Although the entire region is expected to continue to grow at a rapid pace, forecasts show especially dramatic growth in the eastern part of the metro area. To illustrate this comparison, the E-470 influence area represents approximately one-third of the current regional population and employment, but approximately half of the region’s growth is expected to occur in the E-470 influence area.

Table 3. Population and Employment Growth Forecasts

2015 2035 2015 -2035 Growth Population DRCOG Region 3,203,922 4,074,666 27% E-470 Influence Area 1,031,296 1,423,261 38% Employment DRCOG Region 1,568,307 2,020,256 29% E-470 Influence Area 506,230 729,324 44%

3.2 Planned Improvements

Traffic forecasting performed for the E-470 Toll Rate Structure Traffic and Revenue Study by CDM Smith, with assistance from subconsultants EPS and Felsburg Holt & Ullevig (FHU), was based on the demographic forecasts described above and the transportation network contained in the DRCOG 2040 Fiscally Constrained Regional Transportation Plan (RTP) (Cycle 2, 2015). Appendix C contains a listing and map showing the regional highway improvements contained in the 2040 RTP.

Figure 4. Influence Area and Major Development Plans

3.3 Traffic Forecasts

Figure 5 shows the forecasted 2040 daily traffic volumes on E-470. Forecasts are shown along with existing traffic volumes to show the dramatic growth that is anticipated throughout the corridor. Traffic growth of 80 percent or more is projected throughout the corridor between 2016 and 2040, with volumes projected to reach 100,000 vehicles per day near South I-25. The most rapid increases show more than a doubling of traffic in some segments in the central part of the corridor, both north and south of I-70. Comparing E-470 growth rates to overall demographic and travel growth in the E-470 influence area shows that E-470 traffic is expected to grow at a considerably faster pace than overall area growth. This may largely reflect the fact that many adjacent untolled highways and arterials are expected to reach their capacity and show increasing congestion while E-470 is expected to maintain adequate capacity to fully accommodate growth in travel demand.

Figure 6 shows 2040 cross-street traffic, again also showing existing volumes for comparison. All cross-streets show substantial growth as the E-470 influence area continues to develop; however, particularly dramatic growth is expected on a few crossing arterial streets. 64th Avenue and 6th Parkway are two examples of arterials with low volumes now but anticipated exponential growth: on 64th Avenue due to anticipated Aurora Highlands, the Gaylord Resort, and other major developments on currently vacant land and on 6th Parkway due to both area development and the programmed connection of 6th Avenue from the west to the E-470 interchange.

These daily traffic forecasts, along with existing peak hour counts and patterns and accepted traffic volume balancing techniques, were used to develop planning level forecasts of 2040 peak hour turning movements at E-470 interchanges (see Figure A-3).

3.4 Future Operations

3.4.1 E-470 Mainline

Using existing E-470 traffic counts and 2040 forecasts, and assuming straight-line growth between now and 2040, traffic forecasts were developed for 3-year periods between now and 2040. Using similar peak hour and traffic characteristic assumptions, along with analysis techniques as described for existing conditions, LOS analysis was performed for each segment to determine when additional lanes are anticipated to be needed to maintain LOS C with growing traffic. Figure 7 provides estimates of the year at which widening needs would be triggered on different segments.

The analysis shows that the recent widening to 6-lanes that was completed up to Quincy Avenue would allow E-470 to maintain LOS C through approximately 2023. In approximately 2023, a third northbound lane is projected to be needed between Quincy Avenue and I-70, and additional widening needs are identified for 2026, 2029, 2032, 2035, 2038 and finally 2040. By 2040 six lanes (three in each direction) are projected to be needed for the full length of E-470. Additional widening to eight lanes will be needed between South I-25 and I-70 and between Peña Boulevard and 104th Avenue.


E-470 Traffic VolumesFigure 5


59.230.0

56.331.3

60.431.7 62.5

31.8

62.430.9

67.236.0

69.638.0

78.941.5

69.645.2

78.341.5

80.741.5

53.628.9

60.428.7

66.329.5

67.829.5

89.540.2

91.541.4

91.743.4

97.538.9

88.939.3

95.448.0

92.149.4

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= Existing

= 2040 Forecast

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Daily Mainline Traffic Volumes (in thousands)

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Cross-Street Traffic VolumesFigure 6


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Daily Cross Street Traffic Volumes (in thousands)

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Future Widening RequirementsFigure 7


E-470 Master Plan Assistance REV 12-010-23 12/12/2017

= Currently 6 Lanes

= 2023

= 2026

= 2029

= 2032

= 2035

= 2038

= 2040

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3.4.2 Interchanges

LOS were calculated at all E-470 interchanges with 2040 forecasts and with existing lane geometry and traffic control. The results are shown on Figure A-4. As can be expected, with the dramatic traffic growth anticipated but without any interchange improvements, a majority of the interchanges would have traffic exceeding the existing design capacity and would have poor LOS.

Traffic analysis was performed at each of the interchanges to determine what improvements would be needed to improve operations to the target LOS C during 2040 peak hours. Conceptual improvements were identified to expand interchanges to accommodate forecasted traffic volumes at desired LOS. Figure A-5 shows the traffic signals and additional through and turn lanes that have been initially identified as needed to accommodate forecasted traffic. Table 4 shows the estimated 2040 peak hour LOS with existing interchanges and with the geometric and signalization improvements shown on Figure A-5.

Table 4. 2040 Interchange Ramp Terminal Level of Service Summary

Interchange Ramp 2040 No Build LOS 2040 Proposed Change LOS

AM PM AM PM

York Street WB Off f f A A

EB Off a f A A

Colorado Boulevard WB Off c f A A

EB Off f f A A

Quebec Street WB Off f f B B

EB Off f f B B

120th Avenue NB Off f f B C

SB Off f f B C

104th Avenue NB Off f f A C

SB Off e f A B

96th Avenue NB Off a c A A

SB Off a d A A

64th Avenue NB Off f f B C

SB Off f f A A

It is important to highlight the high, planning level nature of these analyses. Forecasting of specific peak hour traffic movements over a 20-plus year period, and doing so for a long corridor with many interchanges, is a highly uncertain exercise. But such planning-level forecasts and analyses are needed to develop an initial basis for long-range needs identification and budgeting.

Interchange Ramp 2040 No Build LOS 2040 Proposed Change LOS

AM PM AM PM

56th Avenue NB Off f f A A

SB Off f f A B

I-70 SB Off B C

Future Directional Interchange NB Off A C

6th Parkway NB Off f f A A

SB Off f f A A

Jewell Avenue NB Off f f A A

SB Off f f A B

Quincy Avenue NB Off f f B C

SB Off f f B B

Smoky Hill Road NB Off C C B C

SB Off B C B C

Gartrell Road WB Off f f B A

EB Off e f A A

Parker Road WB Off B C B1 C1

EB Off D C C1 C1

Jordan Road WB Off F B A A

EB Off B F B C

Chambers Road WB Off F F B B

EB Off D F A B

Peoria Street WB Off D C B A

EB Off D B B A Notes: x = Unsignalized LOS X = Signalized LOS 1With Left-Turn Reductions

3.5 Alternative Futures

The forecasts upon which this plan are based rely on a series of predictions relative to future growth, economic conditions, travel behaviors and the transportation system. Future traffic volumes and characteristics and associated roadway needs, are dependent on the interplay of a number of future variables, for example:

How will regional and national economic growth follow or differ from current projections? How will millennials and future generation travel choices influence travel demand? How will new vehicles, including new fuel sources and new autonomous features,

influence traffic volumes, characteristics and operations? How will regulatory responses to these technological changes further influence travel

and roadway systems?

Since these future variables cannot be predicted with certainty, it is not possible to fully account for all alternative futures in long-range planning over a 20-plus year period. Therefore, this master plan has been based on a foundation of established regional projections which, in turn, are based on general continuations of existing trends. As a result of this uncertainty, the short-range forecasts and needs identification should be viewed with more certainty than longer-range forecasts. Moreover, the difficulty in predicting conditions in the longer-range makes it important that this master plan be treated as a living document that should be updated on a regular basis to respond to changing conditions.

E-470 CONSTRUCTION NEEDS ASSESSMENT The E-470 widening and interchange improvement needs identified in the previous chapter were assembled, previously identified improvements like new interchanges were added, and individual projects were aggregated into logical construction projects to develop a conceptual roadway improvement program for E-470 over the next 20 years. This chapter describes the resulting roadway improvement program and provides estimated phasing and planning-level cost estimates to construct needed improvements.

4.1 Road Widening

The individual segment E-470 widening needs identified in the previous chapter were aggregated into larger segments including improvements in both directions to represent logical and efficient construction projects. Figure 8 shows the resulting illustrative widening program with widening to six lanes and to eight lanes by 3-year periods through 2040. Table 5 lists the segments, number of lanes, and length by project priority.

Table 5 also summarizes the key segment features that went into cost estimation for each project and the resulting planning-level cost estimates in current (2017) dollars. Key segment features are significant factors that make construction of particular segments more or less expensive per-mile than others. One of the major factors affecting cost per mile is the need to construct costly structures. Segments with a high density of bridge structures will have higher per-mile costs. Conversely, projects that would widen E-470 from six to eight lanes will be less costly per mile because it is assumed that E-470 will continue to improve structures to accommodate future 8-lane widening with the prior 6-lane widening project. More detail on cost estimation is provided in Appendix 4.

Ilustrative Widening ProgramFigure 8



= Existing

= 2023

= 2029

= 2032

= 2035

= 2038

= 4 Lanes

= 6 Lanes

= 8 Lanes

LEGEND

Widening Year

Number of Lanes

Jam

aica

St.

Peor

ia S

t.

Jord

an R

d.

Parker Rd.

Cotto

nwoo

d Dr

.

Gartrell Rd.

Arapahoe Rd.

Smoky Hill Rd.

Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.


26th Ave.

56th Ave.

48th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.Qu

ebec

St.

Holly

St.

Colo

rado

Blv

d.

York

St.

Ireland Way

Cham

bers

Rd.

64th Ave.

72nd Ave.

96th Ave.

Tow

er R

d.

Buck

ley

Rd.

Was

hing

ton

St.

70

76

85

25

25

Table 5. Mainline Improvement Summary

Priority Segment Project Description Year of Need

Length (mi) Key Segment Features Estimated

Cost* Pavement Segment

Age

1 Quincy – I-70 Widen 4 lanes to 6 2023 7.00

Retrofit Toll Plaza B. Slope walls at Hampden, Jewell and E 6th Ave, and E 6th Pkwy. 14 Bridges Widened: Bridges

over Coal Creek (2). 12 Bridges at I-70.

$ 94 M 2007

2 I-70 – Peña Widen 4 lanes to 6 2029 7.50 Retrofit Toll Plaza C. Slope walls at 26th, 48th, 56th, 64th. $ 70 M

2007 (I-70 – “68th”) 2004 (“68th” – Peña)

3 Peña – I-76 Widen 4 lanes to 6 2029 7.75

Retrofit Toll Plaza D. Slope walls at 88th, 96th, 104th, 112th, Tower

Rd. 13 Bridges Widened: Over Peña (2) I-76 (2), Burlington Ditch (2), Buckley Rd (2), O’Brian Canal

(3), and 120th (2).

$ 96 M

2004 (Peña – Toll Plaza D)

2005 (Toll Plaza D – 120th)

2011 (120th – I-76)

4 I-25 (S) – Parker Widen 6 lanes to 8 2032 5.50

Widen to the inside. Retrofit Toll Plaza A.

(No Bridges) Visual buffering considered.

$ 17 M

2009 (I-25 – Toll Plaza A)

2012 (Toll Plaza A – Parker)

5 Parker – Smoky Hill Widen 6 lanes to 8 2032 5.25 Paving only. (No Bridges) $ 16 M 2017

6 Smoky Hill – I-70 Widen 6 lanes to 8 2035 9.50 Assume structure costs in 2026

build. Paving only. $ 29 M

2017 (Smoky Hill – Quincy)

2026** (Quincy – I-70)

Priority Segment Project Description Year of Need

Length (mi) Key Segment Features Estimated

Cost* Pavement Segment

Age

7 I-76 – US 85 Widen 4 lanes to 6 2035 2.50 Bridges over US 85 (2), and

Second Creek (2). Slope walls at Sable Blvd.

$ 37 M 2011

8 US 85 – I-25 (N) Widen 4 lanes to 6 2035 8.50

10 Bridges. Retrofit Toll Plaza E.

Slope walls at Colorado, Quebec, Brighton.

Visual buffering considered.

$ 103 M

2011 (US 85 – Toll Plaza E)

2010 (Toll Plaza E – I-25)

9 Peña – I-76 Widen 6 lanes to 8 2038 7.50 Assume structure costs in 2026 build. Paving only.* $ 23 M 2026**

* Cost Assumptions In 2017 dollars, prices not adjusted for future inflation. High level cost per mile assumptions. 4-6 Mile widening assumes ultimate bridge and grading build-out. Widening to the inside means the bridges already are in ultimate buildout. Additional costs for unique bridges (longer spans). 6-8 Lane widening assumes some kind of ramp reconstruction for a portion of ramps.

**Assumes pavement replacement in segment’s previous Year of Need.

4.2 Interchange Improvements

Table 6 shows the estimated year of need for the interchange improvement projects described in the previous chapter. In many cases, interchange needs are listed in two parts: signalization and geometry. At these locations, signalizing ramp terminal intersections, accompanied by only minor geometric improvements, is an early identified need. The Year of Need: Geometry column refers to more major construction projects that involve additional through lanes and/or turn lanes.

Table 6. 2040 Ramp Terminal Level of Service Summary

Interchange Ramp

2040 No Build LOS Year of Need:

Signalization Year of Need:

Geometry

2040 Proposed Change LOS

AM PM AM PM

York Street WB Off f f

2029 2040 A A

EB Off a f A A

Colorado Boulevard WB Off c f

2031 2040 A A

EB Off f f A A

Quebec Street WB Off f f

2017 2026 B B

EB Off f f B B

120th Avenue NB Off f f

2017 2017 B C

SB Off f f B C

104th Avenue NB Off f f Evaluate at East

Leg Opening 2040 A C

SB Off e f A B

96th Avenue NB Off a c

2040 2040 A A

SB Off a d A A


2025 2035 B C

SB Off f f A A


2026 2040 A A

SB Off f f A B

I-70 SB Off B C

N/A N/A Future

Directional Interchange NB Off A C

6th Parkway NB Off f f

2034 2039 A A

SB Off f f A A

Jewell Avenue NB Off f f

2028 2036 A A

SB Off f f A B

Interchange Ramp

2040 No Build LOS Year of Need:

Signalization Year of Need:

Geometry

2040 Proposed Change LOS

AM PM AM PM

Quincy Avenue NB Off f f

2017 2022 B C

SB Off f f B B

Smoky Hill Road NB Off C C Already

Signalized N/A B C

SB Off B C B C

Gartrell Road WB Off f f

2021 2040 B A

EB Off e f A A

Parker Road WB Off B C Already

Signalized 2033 B1 C1

EB Off D C C1 C1

Jordan Road WB Off F B Already

Signalized 2022 A A

EB Off B F B C

Chambers Road WB Off F F Already

Signalized 2024 B B

EB Off D F A B

Peoria Street WB Off C B Already

Signalized N/A B A

EB Off C A B A Notes: x = Unsignalized LOS X = Signalized LOS 1 = With left-turn reductions

Table 7 provides more information on the specific improvement needs at each location:

Minor Improvements Needed lists ramp terminal signalization projects, which may have accompanying minor geometric improvements.

Major Improvements Needed lists interchanges where additional through and/or turn lanes are needed. In cases where the cross-street widening would necessitate widening or reconstruction of an existing cross-street bridge over E-470, that is listed in the improvement need description.

Reconstruction/Reconfiguration Needed lists major interchange reconstruction projects including:

- I-76 – Only two ramp connections are currently provided at the E-470/I-76 interchange; this improvement would add ramps to create a full movement interchange

- Peña Boulevard – In coordination with Denver International Airport plans to widen Peña Boulevard, E-470 PHA will coordinate with DEN to identify needed E-470/Peña interchange improvements, potentially including separation of the northbound auxiliary lane from the mainline and ramp widening or reconfiguration for high volume ramps.

- I-70 – A fully directional freeway-to-freeway interchange in conjunction with I-70/Harvest and I-70/Piccadilly interchanges, has been planned as a joint project with Aurora and CDOT

- Quincy Avenue – In conjunction with widening of Quincy Avenue, Aurora, Arapahoe County, and E-470 PHA have developed a plan to reconfigure northbound on- and off-ramps to connect directly with Gun Club Road south of Quincy Avenue.

E-470 interchange improvements are joint responsibilities among the E-470 PHA and local jurisdictions. The right-hand column of Table 7 lists the county and municipality that will or could be partnering agencies with E-470 to plan, finance and implement needed interchange area improvements.

Table 7. 2040 Interchange Improvement Needs

# Interchange Minor Improvements Needed

Major Improvements Needed

Reconstruction/ Reconfiguration Needed

Estimated Cost1 Partnering Agencies

1 York Street Signalize ramp terminal intersections

Widen York Street to 4 thru plus turn lanes $2.25M Thornton, Adams

County, E-470 PHA

2 Colorado Boulevard

Signalize ramp terminal intersections

Widen Colorado Blvd to 4 thru plus turn lanes Requires Colorado Blvd bridge widening

$3.75M Thornton, Adams County, E-470 PHA

3 Quebec Street


Widen Quebec St to 4 thru plus turn lanes Requires Quebec St bridge widening

$4.75M Thornton, Adams County, E-470 PHA

4 I-76 Extend southbound Merge from I-76 with widening or major interchange project

Add ramps to create a fully directional interchange $105M

CDOT, Adams County, Brighton, Commerce City, E-470 PHA

5 120th Avenue

Signalize ramp terminal intersection

Widen 120th Ave to 4 thru plus turn lanes $0.5M

Adams County, Commerce City, E-470 PHA

6 104th Avenue


Provide lanes for movements to/from the east

$1.75M Adams County, Commerce City, E-470 PHA

7 96th Avenue Signalize ramp terminal intersections $0.5M

Adams County, Commerce City, E-470 PHA

8 Peña Boulevard

Coordinate with DEN on interchange improvements with Phase 3 or Phase 4 Peña Blvd Widening project; Evaluate needs for NB barrier separated auxiliary lane, 2nd SB to WB lane, and 2nd EB to NB lane

$20M Denver, E-470 PHA





9 64th Avenue Signalize ramp terminal intersections

Widen 64th Ave to 4 thru plus turn lanes Requires 64th Ave bridge widening

$4.25M Adams County, E-470 PHA

10 56th Avenue Signalize ramp terminal intersections

Widen 56th Ave to 4 thru plus turn lanes $2.25M Adams County, Aurora,

E-470 PHA

11 I-70

Fully directional interchange in conjunction with I-70/Harvest and I-70/ Piccadilly interchanges Joint project with Aurora, CDOT and private property owners

$101M CDOT, Aurora, E-470 PHA

12 6th Avenue Parkway


Widen 6th Pkwy to 4 thru plus turn lanes Requires 6th Pkwy bridge widening Project in conjunction with Aurora 6th Avenue extension project

$4.25M Aurora, E-470 PHA

13 Jewell Avenue


Widen Jewell Ave to 4 thru plus turn lanes Requires Jewell Ave bridge widening


14 Quincy Avenue


Widen Quincy to 6 thru lanes plus turn lanes Reconfigure northbound ramps to south of Quincy Project in conjunction with Aurora and Arapahoe County

$7.5M Aurora, Arapahoe County, E-470 PHA





15 Smoky Hill Road

Geometric improvements at ramp terminal intersections


16 Gartrell Road


Widen Gartrell Dr to 4 thru plus turn lanes Requires Gartrell Dr bridge widening

$5.5M Aurora, Arapahoe County, E-470 PHA

17 Parker Road

Explore need for restricting movements at Crown Crest or Woodman Dr and additional turn lanes

$1.75M Parker, Douglas County, E-470 PHA

18 Jordan Road

Provide additional lanes at exit ramps and one additional lane on cross street.


19 Chambers Road

Widen Chambers Rd to 6 thru plus turn lanes Requires Chambers Rd bridge widening


20 Peoria Street Widen Peoria St to 6 thru

plus turn lanes $1.75M Douglas County, E-470 PHA

New Interchanges

Potomac St Potential new interchange in coordination with Brighton and property owners. Approved new interchange location per 2005 Board resolution. $20M Brighton, Adams

County, E-470 PHA

38th Avenue

and/or 48th Avenue

Potential new interchange in coordination with Aurora and property owners. 48th Avenue is an approved location per 2005 Board resolution. Change to 38th Avenue is currently under consideration by Aurora and the E-470 PHA.

$20M Aurora, E-470 PHA

88th Avenue Approved for a half diamond interchange with south ramps per 2005 Board resolution. $15M Commerce City, Adams Co, E-470 PHA

112th Avenue Approved new interchange location per 2005 Board resolution. $15M Commerce City, Adams

Co, E-470 PHA Note: 12017 Dollars

4.3 New Interchanges

The four potential new interchanges that have been identified in previous planning are listed at the bottom of Table 7. Similar with improvement projects for existing interchanges, planning and implementation of these new interchanges will be a joint effort between E-470 PHA and the local jurisdictions listed. The timing of these new interchanges will be driven by access needs, economic development, and other considerations. Specific years of need cannot be determined at this time and all new interchanges have been given a 2040 timeframe for the purposes of this study. It should be noted that the needs and improvements identified for the existing interchanges do not rely on these four interchanges being constructed.

Planning level cost estimates were developed for the minor and major interchange improvements and new interchanges listed in Table 7. More detail on cost estimation is provided in Appendix D. Cost estimates are shown in the capital improvement cost summaries presented in the next chapter.

Figure 9 shows the location of minor, major, reconstruction, and new interchange projects.

Interchange ImprovementNeeds Anticipated by 2040

Figure 9



AND/OR

= Minor Improvements(signalize ramp terminal intersections,

minor geometric improvements)

= Major Improvements (additional lanes, bridge widening)

= Reconfiguration (new or reconfigured ramps)

= New Interchange

LEGEND

Jam

aica

St.

Peor

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t.

Jord

an R

d.

Parker Rd.

Cotto

nwoo

d Dr

.

Gartrell Rd.

Arapahoe Rd.

Smoky Hill Rd.

Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.


26th Ave.

56th Ave.

48th Ave.

38th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.Qu

ebec

St.

Holly

St.

Colo

rado

Blv

d.

York

St.

Ireland Way

Cham

bers

Rd.

64th Ave.

72nd Ave.

96th Ave.

Tow

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d.

Buck

ley

Rd.

Was

hing

ton

St.

Poto

mac

St.

70

76

85

25

25

MASTER PLAN DEVELOPMENT 5.1 Capital Roadway Improvement Plan

The phased E-470 widening, interchange improvement, and new interchange projects were assembled to develop the Capital Roadway Improvement Phasing and Cost Summary shown on Table 8. Table 9 provides a summary of this information by project category and year of need. The estimated project cost total is $831 million, measured in constant 2017 dollars. The costs include $485 million for widening that is expected to be solely E-470’s funding responsibility. There are $346 million for interchange projects, both improvements to existing and new interchanges, which may be implemented in partnership between E-470 PHA and local jurisdictions.

5.2 Other Capital Costs

In addition to roadway expansion projects, two other major capital improvement costs were included in the master plan:

Pavement Overlay – Two E-470 sections are expected to need pavement overlays before the pavement reconstruction that will be included in widening of those sections. The I-25 to Parker Road segment is expected to need an overlay in approximately 2034 at a cost of $7 million (in 2017 dollars) and the I-76 to North I-25 section is expected to need an overlay in 2026 at a cost of $10 million

Multi-Use Trails – Trail projects are anticipated to be linked to E-470 roadway widening projects with an estimated $27 million cost spread over the period from 2013 to 2035.

These two capital cost categories equal $44 million, yielding a total of $875 million in roadway and other capital costs in 2017 dollars.

5.3 Inflated Cost Estimates

For long-range budgetary planning purposes, these cost estimates were inflated to correspond to the anticipated year of need. A 2.1 percent annual cost inflation rate, based on the average annual increase in the Producer Price Index over the past 5 years, was used to bring 2017 cost estimates to the approximate anticipated year of construction. Table 10 shows that the cost inflation would bring the $875 million capital improvement program to $1,242 million, or $1.24 billion over the period between now and 2040.

5.4 Renewal and Replacement

The E-470 PHA’s regular budgeting process includes annual budget items for a series of infrastructure renewal, replacement and maintenance items. Table 11 provides annual estimates for the major line items in this category, starting with an estimated $17.7 million cost in 2018 to $29.5 million in 2040, for a total 22-year cost of $554.4 million.

Table 8. Capital Improvement Phasing and Cost Summary – 2017 Costs

Year of Need Location Description Estimated 2017 Cost

($ millions)

2020 Quebec, 120th Ave, Quincy, Gartrell Interchanges Signalize ramp terminal intersections $2.0

2020 Subtotal $2.0

2023

Quincy to I-70 Widen 4 to 6 lanes $94 56th Avenue Interchange Signalize ramp terminal intersections $0.5

Quincy Interchange Reconfigure Northbound Ramps $7.0 Jordan Interchange Geometric Interchange improvements $0.5

Chambers Interchange Geometric Interchange improvements $4.5 2023 Subtotal $106.5

2026 Quebec Interchange Geometric Interchange improvements $4.25 64th Ave Interchange Signalize ramp terminal intersections $0.5

2026 Subtotal $4.75

2029

I-70 to Pena Widen 4 to 6 lanes $70 Peña to I-76 Widen 4 to 6 lanes $96

Peña Interchange Add Separated Auxiliary Lanes $20 York, Colorado, 6th Pkwy and Jewell Interchanges Signalize ramp terminal intersections $2.0

2029 Subtotal $188

2032 I-25 to Parker Rd Widen 6 to 8 lanes $17

Parker Rd to Smoky Hill Widen 6 to 8 lanes $16 2032 Subtotal $33

2035

Smoky Hill to I-70 Widen 6 to 8 lanes $29 I-76 to US 85 Widen 4 to 6 lanes $37

US 85 to I-25(N) Widen 4 to 6 lanes $103 64th Ave Interchange Geometric Interchange improvements $3.75 Jewell Interchange Geometric Interchange improvements $3.75

Parker Rd Interchange Geometric Interchange improvements $1.75 2035 Subtotal $178.25

Year of Need Location Description Estimated 2017 Cost

($ millions)

2040

Peña to I-76 Widen 6 to 8 lanes $23 York Interchange Geometric Interchange improvements $1.75

Colorado Interchange Geometric Interchange improvements $3.25 104th Ave Interchange Geometric Interchange improvements $1.75 56th Ave Interchange Geometric Interchange improvements $1.75 6th Pkwy Interchange Geometric Interchange improvements $3.75 Gartrell Interchange Geometric Interchange improvements $5

Peoria St Interchange Geometric Interchange improvements $1.75 I-76 Interchange Add ramps for full directional interchange $105

I-70 Interchange complex (including E-470, Piccadilly and Harvest)

Directional I-70 interchange and new Harvest and Piccadilly interchanges $101

Potomac Interchange New Interchange $20 38th and/or 48th Ave Interchange New Interchange $20

88th Ave Interchange New Interchange $15 112th Ave Interchange New Interchange $15

2040 Subtotal $318 2018 to 2040 Total $830.5

Table 9. Summary of Roadway improvement Projects and Costs (in $2017)

Widening Interchange Improvements

New Interchanges

Total ($2017 $’s)

2020 $ 2M $ 2M 2023 $ 94M $13M $107M 2026 $ 5M $ 5M 2029 $166M $22M $188M 2032 $ 33M $ 33M 2035 $169M $ 9M $178M 2040 $ 23M $225M $70M $318M

Total thru 2040 $485M $276M $70M $831M

Table 10. Capital Improvement Projects with Cost Inflation

PPI Index* 2.1%Base Year

Location Description 2017 2023 2026 2029 2032 2035 2040 TotalInterchange: Quebec, 120th, 56th, Quincy, Gartrell Signalize ramp terminal intersections $2,000 $2,000Pavement Overlay - I-25 to Parker Road Overlay - Not FHU $7,000 $7,930 $7,930Pavement Overlay - I-76 to I-25 Overlay - Not FHU $10,000 $12,057 $12,057Multi-Use Trail - Linked to Widenings ESTIMATE - not FHU $27,000 $7,930 $12,832 $14,537 $35,299Quincy to I-70 Widen lanes from 4 to 6 $94,000 $106,483 $106,483Interchange: Quincy Interchange Improvements $7,000 $7,930 $7,930Interchange: Jordan Interchange Improvements $1,000 $1,133 $1,133Interchange: Chambers Interchange Improvements $4,500 $5,098 $5,098Interchange: Quebec Interchange Improvements $4,250 $5,124 $5,12464th Ave Signalize ramp terminal intersections $500 $603 $603I-70 to Pena Widen lanes from 4 to 6 $70,000 $89,827 $89,827Pena to I-76 Widen lanes from 4 to 6 $96,000 $123,191 $123,191Interchange Pena Separate Northbound Auxiliary Lanes $20,000 $25,665 $25,665Interchange: York, Colorado, 6th, Jewell Signalize ramp terminal intersections $2,000 $2,566 $2,566I-25 to Parker Widen lanes from 6 to 8 $17,000 $23,219 $23,219Parker to Smoky Hill Widen lanes from 6 to 8 $16,000 $21,853 $21,853Smoky Hill to I-70 Widen lanes from 6 to 8 $29,000 $42,156 $42,156I-76 to US 85 Widen lanes from 4 to 6 $37,000 $53,785 $53,785US 85 to I-25(N) Widen lanes from 4 to 6 $103,000 $149,727 $149,727Interchange: 64th Interchange Improvements $3,750 $5,451 $5,451Interchange: Jewell Interchange Improvements $3,750 $5,451 $5,451Interchange: Parker Interchange Improvements $1,750 $2,544 $2,544Pena to I-76 Widen lanes from 6 to 8 $23,000 $37,095 $37,095Interchange: York Interchange Improvements $1,750 $2,822 $2,822Interchange: Colorado Interchange Improvements $3,250 $5,242 $5,242Interchange: 104th Interchange Improvements $1,750 $2,822 $2,822Interchange: 56th Interchange Improvements $1,750 $2,822 $2,822Interchange: 6th Interchange Improvements $3,750 $6,048 $6,048Interchange: Gartrell Interchange Improvements $5,000 $8,064 $8,064Interchange: Peoria Interchange Improvements $1,750 $2,822 $2,822Interchange: I-76 Add missing ramps $105,000 $169,349 $169,349Interchange: I-70, Piccadilly, Harvest Interchange Improvements, New interchange $101,000 $162,897 $162,897Interchange: Potomac New Interchange $20,000 $32,257 $32,257Interchange: 38th and/or 48th New Interchange $20,000 $32,257 $32,257Interchange: 88th New Interchange $15,000 $24,193 $24,193Interchange: 112th New Interchange $15,000 $24,193 $24,193

$874,500 $136,503 $17,784 $254,082 $45,071 $273,652 $512,884 $1,241,976Total Roadway Improvements (Excluding Overlay and Trails) $830,500 $1,186,691

PPI Index is based on a five year average of the Final Demand Construction Producer Price Index (PPI) from the Bureau of Labor Statistics website spanning January 2012 through October 2017.

Value in Future YearCapital Improvement Projects (in thousands)

Table 11. Renewal and Replacement Cost Summary

Producer Price Index * 2.1% Factor applied in 2023+ from 2022 figures

2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029Renewal and Replacement

Structure Maintenance 552,500$ 535,000$ 435,000$ 385,000$ 385,000$ 393,000$ 401,000$ 409,000$ 418,000$ 427,000$ 436,000$ 445,000$ Electrical Repairs and Lighting 276,000 276,000 276,000 226,000 126,000 129,000 132,000 135,000 138,000 141,000 144,000 147,000 Sign Replacement 150,000 150,000 200,000 200,000 200,000 204,000 208,000 212,000 216,000 221,000 226,000 231,000 Pavement Replacement 670,000 570,000 420,000 420,000 420,000 429,000 438,000 447,000 456,000 466,000 476,000 486,000 Pavement Markings 300,000 300,000 300,000 300,000 300,000 306,000 312,000 319,000 326,000 333,000 340,000 347,000 Roadway Infrastructure and Support 665,000 900,000 450,000 850,000 430,000 439,000 448,000 457,000 467,000 477,000 487,000 497,000 Transponder Replacement 454,000 562,800 576,400 607,000 675,000 689,000 703,000 718,000 733,000 748,000 764,000 780,000 Facility Repairs and Upgrades 2,396,500 3,630,000 1,170,000 6,330,000 2,330,000 2,379,000 2,429,000 2,480,000 2,532,000 2,585,000 2,639,000 2,694,000 Software and Hardware Upgrades 4,260,000 8,890,000 10,875,000 10,010,000 9,365,000 9,562,000 9,763,000 9,968,000 10,177,000 10,391,000 10,609,000 10,832,000 Storage Environment 5,000 1,305,000 1,075,000 375,000 575,000 587,000 599,000 612,000 625,000 638,000 651,000 665,000 TCS Modifications 7,038,000 4,950,000 4,725,000 4,750,000 4,750,000 4,850,000 4,952,000 5,056,000 5,162,000 5,270,000 5,381,000 5,494,000 Vehicle Replacement 365,000 190,000 200,000 220,000 150,000 153,000 156,000 159,000 162,000 165,000 168,000 172,000 Fence Replacement 68,000 68,000 68,000 68,000 68,000 69,000 70,000 71,000 72,000 74,000 76,000 78,000 Landscape Maintenance 500,000 500,000 500,000 500,000 500,000 511,000 522,000 533,000 544,000 555,000 567,000 579,000 Subtotal Renewal and Replacement 17,700,000$ 22,826,800$ 21,270,400$ 25,241,000$ 20,274,000$ 20,700,000$ 21,133,000$ 21,576,000$ 22,028,000$ 22,491,000$ 22,964,000$ 23,447,000$

Structure Maintenance 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040Electrical Repairs and LightingSign Replacement 454,000$ 464,000$ 474,000$ 484,000$ 494,000$ 504,000$ 515,000$ 526,000$ 537,000$ 548,000$ 560,000$ Pavement Replacement 150,000 153,000 156,000 159,000 162,000 165,000 168,000 172,000 176,000 180,000 184,000 Pavement Markings 236,000 241,000 246,000 251,000 256,000 261,000 266,000 272,000 278,000 284,000 290,000 Roadway Infrastructure and Support 496,000 506,000 517,000 528,000 539,000 550,000 562,000 574,000 586,000 598,000 611,000 Transponder Replacement 354,000 361,000 369,000 377,000 385,000 393,000 401,000 409,000 418,000 427,000 436,000 Facility Repairs and Upgrades 507,000 518,000 529,000 540,000 551,000 563,000 575,000 587,000 599,000 612,000 625,000 Software and Hardware Upgrades 796,000 813,000 830,000 847,000 865,000 883,000 902,000 921,000 940,000 960,000 980,000 Storage Environment 2,751,000 2,809,000 2,868,000 2,928,000 2,989,000 3,052,000 3,116,000 3,181,000 3,248,000 3,316,000 3,386,000 TCS Modifications 11,059,000 11,291,000 11,528,000 11,770,000 12,017,000 12,269,000 12,527,000 12,790,000 13,059,000 13,333,000 13,613,000 Vehicle Replacement 679,000 693,000 708,000 723,000 738,000 753,000 769,000 785,000 801,000 818,000 835,000 Fence Replacement 5,609,000 5,727,000 5,847,000 5,970,000 6,095,000 6,223,000 6,354,000 6,487,000 6,623,000 6,762,000 6,904,000 Landscape Maintenance 176,000 180,000 184,000 188,000 192,000 196,000 200,000 204,000 208,000 212,000 216,000 Subtotal Renewal and Replacement 80,000 82,000 84,000 86,000 88,000 90,000 92,000 94,000 96,000 98,000 100,000

591,000 603,000 616,000 629,000 642,000 655,000 669,000 683,000 697,000 712,000 727,000 23,938,000$ 24,441,000$ 24,956,000$ 25,480,000$ 26,013,000$ 26,557,000$ 27,116,000$ 27,685,000$ 28,266,000$ 28,860,000$ 29,467,000$

* PPI Index is based on a five year average of the Final Demand Construction Producer Price Index (PPI) from the Bureau of Labor Statistics website spanning January 2012 through October 2017.

Current 5 Year Capital Budget

5.5 Total Master Plan Costs

Table 12 provides a summary of master plan component costs through 2040. The grand total is $1,795 million or nearly $1.8 billion.

Table 12. Summary of Master Plan Costs: 2018-2040

Description Total (Completion year $)

Roadway Improvement Projects $1,187M Trail Completion $ 34M Renewal & Replacement $ 554M Pavement Overlays $ 20M

Total thru 2040 $1,795M

5.6 Master Plan Updates

As stated earlier, this Master Plan document should be viewed as a long-range planning document that provides a high-level view of major capital needs over the next 20 years based on the best forecasts and analysis available at this time. It should be treated as a living document that will be updated frequently as conditions change.

Appendix A Interchange Turning Movement Volumes

2017 Traffic VolumesNorth Section

Figure A-1



MATCHLINE

= AM(PM) Peak Hour Traffic VolumesXXX(XXX)

LEGEND

56th Ave.

CLOSED

64th Ave.

85(210)

15(35)

415(295)

1 2

3

4

5

6

7

8

9

10

11

11

1

2

3

5

6 7

10

8

4

9

York St.

24

5(140)

3 3 5(

190)

135( 330)

65(20)

Peña Blvd.

Colorado Blvd.

Quebec St.

US 85

I-76

120th Ave. 104th Ave.

96th Ave.

10(35)5(5)15(35)

30(10)

265(26

0)

250(280)

30(15)

5(20)5(5)

10(25)35

(15)

340(36

0)370(35

5)40

(20)

320(450)

55(20)

10(40)5(5)5(40)

290(340)

45(15)

100(270)

45(50)

5(5)

70(45)295(155)

70(45)

100(270)

5(5)

10(55)5(5)10(45)

50(15)

365(425)

40(10)

260(370)

25(135)5(5)25(110)

50(20)

920(930)

810(99

0)135(50)

10(50)5(5)

10(50)

50(15)

690(825)

730(790)

110(35

)

135(95)

125(120)

175(380)

65(260)

5(5)

15(55)

50(35)1235(1575)

25(20)1035(1680)

1215(1805)90(30)

1025(1660)240(80)

5(5)

5(5)

35(40)

5(5)

5(5)

5(5)15(30)

20(5)45(20)

5(30)5(5)

65(25)10(5)

15(5)

5(5)

100(50)

5(5)

20(30)

10(10)145(165)

25(30)120(90)

195(205)5(10)

150(120)45(70)

45(30)

5(5)

5(5)

160(600)100

5(305)

520(395 ) 2 8

0(8

95) 5(5)30(30)

5(10)35(30)

30(30)5(5)

35(35)5(5)

5(5)

5(5)(

5(5)

5(10)

5(5)

5(5)

56th Ave.

48th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.

Queb

ec S

t.

Holly

St.

Colo

rado

Blv

d.

York

St.

64th Ave.

72nd Ave.

96th Ave.

Tow

er R

d.Buck

ley

Rd.

Was

hing

ton

St.

76

85

25

2017 Traffic VolumesSouth Section

Figure A-1



MATCHLINE


LEGEND

Chambers Rd.

Jewell Ave.

Smoky Hill Rd.

I-70 6th Ave. Pkwy. Quincy Ave.

Gartrell Dr. Jordan Rd.

Peoria St.

12

13

14

15

16

17

1819

2021

14

16 18

20

12 13 15

17 19

21

Parker Rd.

210(255)

870(980)

185 (2 30)

560(350)

35(45)5(5)205(375)

90(100)

45(55)

215(38

5)35

(45)

80(105)5(5)

485(885)95(105)

90(115)

105(115)

40(45)

1010(490)

Flyover

30(15)145(80)

25(15)65(145)

110(60)60(50)

50(100)10(35)

25(30)

5(5)

30(40)

125(75)

5(5)

45(25)

10(10)

5(5)

40(50)

60(100)

5(5)

20(50)

170(35)595(900)

200(75)365(915)

380(935)325(105)

530(870)270(110)

110(140)

5(5)

110(195)

75(270)

5(5)

35(120)

20(65)550(770)

40(60)465(610)

625(805)55(40)

485(620)75(155)

565(190)580(1210)

135(65)470(1275)

330(1440)395(175)

430(860)425(190)

145(405)

5(5)

150(395)

50(215)

5(5)

175(480)

120(45)

295(330)

60(30)

200(530)

220(510)

145(40)

220(460)

465(155)

70(270

)

5(5)

55(165

)

35(70)

5(5)

40(100

)

1260(2260)

45(110)

105(185

)

25(25)

365(605

)

1970(1545)

45(35)105(50)

85(70)

70(175)

60(155)

325(810

)

155(125)

3170(2010)205

(225)

125(180

)

185(230)

1130(2220)

65(150)5(5)

50(380)

80(60)5(5)70(55)

1315(370)

70(75)

235(1250)

40(225)

320(75)

1015(335)

55(25)

230(1430)

55(20)5(5)160(40)

210(85)5(5)

155(75)

1020(1115)

165(70)

425(65

)66

0(1265

)

165(105)

765(825)

805(815)

30(65)

765(58

5)35

(135

)170(170)

805(50

0)

120(100)

650(50

0)80

0(49

5)10(45)

190(50)5(5)55(45)

20(40)5(5)45(240)

Jam

aica

St.

Peor

ia S

t.

Jord

an R

d.

Parker Rd.

Cotto

nwoo

d Dr

.

Gartrell Dr.

Arapahoe Rd.

Smoky Hill Rd.

Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.

Colfax Ave.

Smith Rd.

26th Ave.

Ireland Way

Cham

bers

Rd.

70

25

Existing Interchange Laneage and Levels of ServiceNorth Section

Figure A-2



MATCHLINE

= AM(PM) Peak Hour Traffic Volumes

= AM/PM Peak Hour Signalized Intersection Level of Service

= AM/PM Peak Hour Unsignalized Intersection Level of Service

= Stop Sign

= Traffic Signal

XXX(XXX)

LEGEND

X/X

x/x

56th Ave.

CLOSED

64th Ave.

1 2

3

4

5

6

7

8

9

10

11

11

1

2

3

5

6

7

10

8

4

9

b/ca/a

a/aa/a

d/db/b

a/bc/ca/a

c/cb/b a/a

c/df/f

b/bb/b

f/fc/c

b/c

c/f

f/f

c/f

b/f

b/c

a/a

a/b

b/b

__/__

a/a

a/a

a/a

a/a

a/a

a/a

a/a

a/a

a/a

a/a

a/a

a/aa/a

a/a

b/b

b/b

b/b

a/a

a/a

Peña Blvd.

York St.

Colorado Blvd.

Quebec St.

US 85

I-76

120th Ave.

104th Ave.

96th Ave.

56th Ave.

48th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.

Queb

ec S

t.

Holly

St.

Colo

rado

Blv

d.

York

St.

64th Ave.

72nd Ave.

96th Ave.

Tow

er R

d.Buck

ley

Rd.

Was

hing

ton

St.

76

85

25

Existing Interchange Laneage and Levels of ServiceSouth Section

Figure A-2



MATCHLINE




= Stop Sign

= Traffic Signal

XXX(XXX)

LEGEND

X/X

x/x

Chambers Rd.

Parker Rd.

Jewell Ave.

Smoky Hill Rd.

I-70

6th Ave. Pkwy. Quincy Ave.

Gartrell Dr.

Jordan Rd.

Peoria St.

12

13

14

15

16

17

1819

2021

14

16

18

20

12

1315

17

19

21

A/B

A/B

a/a

b/c

c/c

c/c

b/b

a/a

a/a

b/b

b/c

c/c

b/b

a/a

b/b

b/f

f/f

f/f

b/e

a/b

B/BB/B

a/bc/e

a/aa/a

c/fa/c

E/C

B/B

B/A

A/B

A/A

A/A A/A

A/A

Jam

aica

St.

Peor

ia S

t.

Jord

an R

d.

Parker Rd.

Cotto

nwoo

d Dr

.

Gartrell Dr.

Arapahoe Rd.

Smoky Hill Rd.

Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.

Colfax Ave.

Smith Rd.

26th Ave.

Ireland Way

Cham

bers

Rd.

70

25

2040 Forecasted Interchange Peak Hour Traffic VolumesNorth Section

Figure A-3



MATCHLINE


LEGEND

56th Ave.

64th Ave.

110(280)

30(70)

545(390)

1 2

3

4

5

6

7

8

9

10

11

11

1

2

3

5

6 7

10

8

4

9

York St.

32

5(185)

3 9 0(

220)

180( 435)

105(40)

Peña Blvd.

Colorado Blvd.

Quebec St.

US 85

I-76

120th Ave. 104th Ave.

96th Ave.

65(225)5(5)95(225)

190(65

)670(64

5)

610(790)

15(80)

25(105)5(5)

50(130)225(95)

875(1015)

1075(100

5)205(105)

820(1095)

200(75)

45(145)5(5)30(145)

1200(1270)

165(55)

370(470)550(240)

115(95)600(680)

40(155)5(5)40(130)

140(45)

980(1040)

115(30)

1130(1385)

125(355)5(5)110(290)

130(55

)1235

(1215)

975(1370)

370(135)

85(135)5(5)

70(125)

130(75)

1370(145

0)1415(139

0)30

0(105)

180(125)

165(160)

205(440)

175(700)

5(5)

50(150)

135(95)1430(1775)

130(120)1200(1875)

1425(2400)180(75)

1235(1890)290(145)

40(60)

5(5)

95(105)

100(130)300(270)

100(150)230(400)

315(305)135(125)

220(410)170(145)

295(305)

5(5)

185(230)

185(230)750(1160)

85(100)1145(1210)

855(1215)190(250)

940(1050)360(290)

180(215)

5(5)

290(26

0)210(790)132

0(400)

685(52

0 ) 3 70(1

180) 85(100)720(1105)

255(450)780(1015)

905(1490)70(90)

945(1465)255(675)

255(475)

5(5)

70(100)

255(745)

5(5)

90(115)

150(50

0)5(5)

100(170)

300(195)255(365)

325(715)80(150)

90(100)

5(5)

230(305)

150(160)

5(5)

120(140)

90(130)

5(5)

110(140)

56th Ave.

48th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.

Queb

ec S

t.

Holly

St.

Colo

rado

Blv

d.

York

St.

64th Ave.

72nd Ave.

96th Ave.

Tow

er R

d.Buck

ley

Rd.

Was

hing

ton

St.

76

85

25

2040 Forecasted Interchange Peak Hour Traffic VolumesSouth Section

Figure A-3



MATCHLINE


LEGEND

Chambers Rd.

Jewell Ave.

Smoky Hill Rd.

I-70 6th Ave. Pkwy. Quincy Ave.

Gartrell Dr. Jordan Rd.

Peoria St.

FutureDirectionalInterchange

12

13

14

15

16

17

1819

2021

14

16 18

20

12 13 15

17 19

21

Parker Rd.

280(36

0)

1225(1300)

260 (325)

190(495)

130(85)1475(1385)

100(85)1315(1200)

1315(1275)260(235)

1300(1230)220(200)

100(125)

5(5)

130(160)

225(135)

5(5)

180(145)

60(55)

5(5)

75(55)

130(215)

5(5)

45(105)

275(140)2115(1515)

450(200)1475(2415)

1890(1825)415(240)

1750(2360)620(375)

190(55

0)5(5)

550(53

0)

185(50

0)5(5)

175(255)

60(120)1365(1615)

75(110)1480(1735)

1475(1565)115(185)

1490(1740)140(330)

820(320)1370(2020)

230(110)700(1740)

950(2400)665(295)

635(1110)650(280)

245(685)

5(5)

255(670)

85(360)

5(5)

295(740)

150(55)

850(930)

75(35)

775(1205)

610(1180)

330(90)

685(1015)

1055(350)

90(340

)

5(5)

70(205

)

80(160

)

5(5)

90(225

)

1775(3185)

65(155)

150(260

)

35(35)

515(850

)

2550(1695)

65(50)150(70)

120(100

)

100(245

)

85(220)

460(114

0)

220(175)

4465(3225)290

(315)

175(255

)

260(325)

1355(2600)

200(460)5(5)

155(1160)

125(95)5(5)110(85)

2725(1535)

215(230)

1655(2295)

120(685)

1135(265)

1650(1590)

195(90)

1380(2820)

105(40)5(5)310(75)

715(290)5(5)

530(255)

1725(188

5)505(215)

665(100)

1260

(2245)

255(165)

1295(1395)

1315(1280)

90(200)

1630

(138

0)120(46

0)33

0(33

0)2015(1240)

230(195)

1340

(136

5)1615(128

5)35

(155

)

675(180)5(5)195(160)

60(120)5(5)135(730)

Jam

aica

St.

Peor

ia S

t.

Jord

an R

d.

Parker Rd.

Cotto

nwoo

d Dr

.

Gartrell Dr.

Arapahoe Rd.

Smoky Hill Rd.

Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.

Colfax Ave.

Smith Rd.

26th Ave.

Ireland Way

Cham

bers

Rd.

70

25

2040 No Build Interchange Laneage and Levels of ServiceNorth Section

Figure A-4



MATCHLINE




XXX(XXX)

LEGEND

X/X

x/x

X/X

X/X

= Existing Level of Service

= Intersection Level of Service

= Stop Sign

= Traffic Signal

56th Ave.

64th Ave.

1 2

3

4

5

6

7

8

9

10

11

11

1

2

3

5

6

7

10

8

4

9

e/ff/f

b/ac/b

f/fe/f

f/ff/fc/b

f/ff/f b/b

f/ff/f

c/bf/c

f/ff/f

c/d

f/f

f/f

f/f

f/f

c/d

b/b

f/f

f/f

a/a

a/a

d/f

e/f

b/b

a/a

c/f

f/f

f/f

f/f

f/f

b/f

a/aa/b

f/f

f/f

f/f

d/e

d/e

a/b

f/f

a/f f/f

c/f

f/f

f/f

f/f

f/f

e/f

e/f

a/c

a/d

f/f

b/f

d/f

f/f

Peña Blvd.

York St.

Colorado Blvd.

Quebec St.

US 85

I-76

120th Ave.

104th Ave.

96th Ave.

56th Ave.

48th Ave.

Peña Blvd.

88th Ave.

104th Ave.

112th Ave.

120th Ave.

Sabl

e Bl

vd.

Brig

hton

Rd.

Rive

rdal

e Rd.

Queb

ec S

t.

Holly

St.

Colo

rado

Blv

d.

York

St.

64th Ave.

72nd Ave.

96th Ave.

Tow

er R

d.Buck

ley

Rd.

Was

hing

ton

St.

76

85

25

2040 No Build Interchange Laneage and Levels of ServiceSouth Section

Figure A-4



MATCHLINE




= Existing Level of Service

= Intersection Level of Service

= Stop Sign

= Traffic Signal

XXX(XXX)

LEGEND

X/X

x/x

X/X

X/X

Chambers Rd.

Parker Rd.

Jewell Ave.

Smoky Hill Rd.


Gartrell Dr.

Jordan Rd.

Peoria St.

I-70FutureDirectionalInterchange

12

13

14

15

16

17

1819

2021

14

16

18

20

1315

17

19

21

12

e/f

f/f

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Hampden Ave.

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6th Ave.

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Smith Rd.

26th Ave.

Ireland Way

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bers

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2040 Recommended Interchange Laneage and Levels of ServiceNorth Section

Figure A-5



MATCHLINE


= Proposed AM/PM Peak Hour Signalized Intersection Level of Service

= Proposed AM/PM Peak Hour Unsignalized Intersection Level of Service

= Proposed Geometry Change

= Stop Sign

= Traffic Signal

XXX(XXX)

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Colorado Blvd.

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I-76

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2040 Recommended Interchange Laneage and Levels of ServiceFigure A-5



MATCHLINE


= Proposed AM/PM Peak Hour Signalized Intersection Level of Service

= Proposed AM/PM Peak Hour Unsignalized Intersection Level of Service

= Proposed Geometry Change

= Stop Sign

= Traffic Signal

XXX(XXX)

LEGEND

X/X

x/x

Chambers Rd.

Parker Rd.

Jewell Ave.

Smoky Hill Rd.


Gartrell Dr.

Jordan Rd.

Peoria St.

I-70FutureDirectionalInterchange

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Quincy Ave.

Hampden Ave.

Jewell Ave.

6th Ave.

6th Pkwy.

Colfax Ave.

Smith Rd.

26th Ave.

Ireland Way

Cham

bers

Rd.

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25

Appendix B Safety Assessment

November 2017 470B MP 0.00 – MP 46.38

Page | B-1

Safety Assessment Report E-470 MP 0.00 – 46.38

Crash Summary

The crash history for the five-year period from January 1, 2011 through December 31, 2015 was examined to locate crash clusters and identify collision causes. Within the study period, a total of 1,191 crashes were reported along E-470, including mainline, ramp, and ramp terminal crashes. Of these, there were 355 injury collisions and 10 fatal collisions; 453 injured and 11 killed overall. Table B-1 summarizes the crash totals for E-470 over the five-year study period.

Table B-1: Crash History of E-470 from MP 0.00 to MP 46.38 by Year

Year PDO1

Crashes Injury

Crashes Injuries Fatal

Crashes Fatalities Total 2011 111 59 72 2 3 172 2012 146 64 77 2 2 212 2013 168 70 89 0 0 238 2014 181 81 111 4 4 266 2015 220 81 104 2 2 303

Total 826 355 453 10 11 1,191 Average/Yr 165.2 71.0 90.6 2.0 2.2 238.2

Crash History

Fixed object collisions were the most common crash type observed, accounting for 39 percent of all crashes. Another common crash type along this corridor was rear end, accounting for 13 percent. The third most frequent collision type was wild animal, accounting for 11 percent. Figure B-1 displays the crash distribution by type for the study segment.

1 PDO – Property Damage Only

November 2017 470B MP 0.00 – MP 46.38

Page | B-2

Figure B-1: Crash Distribution by Type

Figure B-2 shows a breakdown of fixed object crashes. Cable rail and guard rail combined for the highest percentage of fixed object crashes (62 percent), while sign (11 percent) and embankment (6 percent) were the next two highest percentage of objects struck. It should be noted barrier crashes like cable rail and guard rail often prevent more severe crashes.

Figure B-2: Fixed Object Crash Distribution

November 2017 470B MP 0.00 – MP 46.38

Page | B-3

Mainline Crashes

Mainline crashes are crashes that occurred on E-470 and are not associated with ramps or intersections. A total of 853 mainline crashes occurred on the corridor with 245 resulting in injuries and 9 resulting in fatalities. As shown in Figure B-3, Fixed object collisions were the most common crash type observed, accounting for 45 percent, followed by wild animal with 15 percent of crashes.

Figure B-3: Mainline Crash Distribution by Type

Figure B-4 shows a breakdown of the mainline fixed object crashes. As shown, 52 percent are cable rail followed by 18 percent guard rail. As mentioned previously, these barrier type collisions often prevent more severe crashes such as overturning.

Figure B-4: Mainline Fixed Object Crash Distribution

November 2017 470B MP 0.00 – MP 46.38

Page | B-4

Safety Performance Function

We have refined the assessment of the magnitude of safety problems on roadway segments using Safety Performance Functions (SPF). The SPF reflects the complex relationship between traffic exposure, measured in average daily traffic (ADT), and crash count for a unit of road section measured in crashes per mile per year. The SPF models provide an estimate of the normal or expected crash frequency and severity for a range of ADT among similar facilities. Two kinds of SPFs were calibrated. The first one addresses the total number of collisions, and the second one looks only at collisions involving an injury or fatality. It allows us to assess the magnitude of the safety problem from the frequency and severity standpoint. Development of the SPF lends itself well to the conceptual formulation of the Level of Service of Safety (LOSS). The concept of level of service uses qualitative measures that characterize safety of a roadway segment in reference to its expected performance. If the level of safety predicted by the SPF will represent a normal or expected number of crashes at a specific level of ADT, selected percentiles within the frequency distribution can be stratified to represent specific levels of safety.

• LOSS I – Below 20th Percentile Indicates a low potential for crash reduction.

• LOSS II – 20th Percentile to Mean Indicates a low to moderate potential for crash reduction.

• LOSS III – Mean to 80th Percentile Indicates a moderate to high potential for crash reduction.

• LOSS IV – Above 80th Percentile Indicates a high potential for crash reductions.

LOSS reflects how the roadway segment is performing regarding its expected crash frequency and severity at a specific level of ADT. It only provides a crash frequency and severity comparison with the expected norm. It does not, however, provide any information related to the nature of the safety problem itself. If the safety problem is present, LOSS will only describe its magnitude from the frequency and severity standpoint. The nature of the problem is determined through diagnostic analysis using direct diagnostic and pattern recognition techniques. An overall corridor analysis of actual crashes per mile per year versus expected crashes per mile per year was completed for the 6-lane and 4-lane segments of the corridor. As shown in Table B-2, the actual crash rate is lower than the expected crash rate for both the 6-lane and 4-lane segments.

Table B-2: Corridor Crash Rate

MP Laneage

Total Crashes Severe Crashes

Actual Crashes/Mile/Year

Expected Crashes/Mile/Year

Actual Crashes/Mile/Year

Expected Crashes/Mile/Year

0.00-4.78 6-Lane 5.53 8.68 1.89 1.97

4.79-46.38 4-Lane 3.67 4.14 1.08 1.13

November 2017 470B MP 0.00 – MP 46.38

Page | B-5

A rolling SPF was prepared for the corridor, which shows the LOSS category for any point along the corridor. Only mainline crashes were use in the analysis. Figure B-5 shows the safety performance of the 6-lane segment of the highway. The first mile of the highway performed at LOSS IV for both frequency and severity of crashes, as did a small segment at MP 4.0, when compared to other urban, 6-lane divided freeways within Colorado. Most of the remainder of the 6-lane segment was in the LOSS II and LOSS III categories.

Figure B-5: Urban Flat Rolling Mountainous 6-Lane Divided Freeways

Figure B-6 shows the safety performance of the 4-lane segment of the highway. Most of the corridor falls into the LOSS II category for frequency and severity when compared to other urban, 4-lane divided freeways within Colorado. There are segments in the LOSS IV category including:

• MP 6.9 to 9.0 • MP 25.5 to 26.3 • MP 37.6 to 38.6

November 2017 470B MP 0.00 – MP 46.38

Page | B-6

Figure B-6: Urban Flat Rolling Mountainous 4-Lane Divided Freeways

The corridor was divided into 23 segments. The breakpoint between each segment is midway between interchanges. As a result, most segments include a single interchange in them. Table B-3 provides the corridor segments, number of crashes within each segment, and LOSS for the frequency and severity of crashes occurring in the segment. As shown, a few segments stand out as having poor LOSS and for number of fatal crashes. These segments will be analyzed in more detail in the following section.

November 2017 470B MP 0.00 – MP 46.38

Page | B-7

Table B-3: Segment Crash Analysis

Segment Location Start End PDO

Crashes Injury

Crashes Fatal

Crashes Total

Crashes

LOSS All

Crashes

LOSS Severe

Crashes

1 I-25, Jamaica St 0 0.85 24 10 1 35 III III

2 Peoria 0.86 2.6 35 18 1 54 II III

3 Chambers 2.61 3.94 15 9 0 24 I II

4 Jordan 3.95 4.78 6 5 0 11 I II

5 US 83/Parker Rd 4.79 7.03 56 18 0 74 II II

6 Gartrell Rd 7.04 9.79 84 36 1 121 III III

7 Smoky Hill Rd 9.8 12.02 49 14 0 63 II/III II

8 Quincy Ave. 12.03 14.85 32 11 4 47 II II

9 Jewell Ave. 14.86 17.67 36 10 0 46 II II

10 6th Parkway 17.68 19.77 30 13 1 44 II II

11 I-70 19.78 22.51 32 14 0 46 II III

12 56th Ave 22.52 25 17 8 0 25 II II

13 64th Ave 25.01 26.68 20 14 0 34 III IV

14 Peña Blvd 26.69 29.2 24 14 0 38 II III

15 96th Ave 29.21 31.08 11 6 0 17 I II

16 104th Ave 31.09 32.87 10 2 0 12 I I

17 120th Ave 32.88 34.81 30 8 0 38 II II

18 I-76 34.82 36.93 20 8 0 28 II II

19 Nome Rd/US 85 36.94 39.98 34 13 1 48 III III

20 Quebec St 39.99 42.7 17 9 0 26 II II

21 Colorado Blvd 42.71 44.33 7 2 0 9 I II

22 York St 44.34 45.61 9 2 0 11 II II

23 I-25 45.62 46.38 1 1 0 2 I II

Total 0 46.38 599 245 9 853 - -

November 2017 470B MP 0.00 – MP 46.38

Page | B-8

Pattern Recognition

The segments with poor LOSS or fatalities were tested for the presence of patterns related to crash type, severity, direction of travel, road conditions, spatial distribution of collisions, time of day, and behavioral attributes. Pattern recognition analysis for E-470 was performed using normative percentages for diagnostics of safety problems for an urban divided freeway with the appropriate number of lanes for the segment. These diagnostic norms were developed using the same data points as those graphed in the SPF analysis. This section covers notable accident types and conditions over the study period within the project limits. Anything exceeding 95 percent confidence is considered to be a pattern.

Segment 1: I-25/Jamaica Interchange – MP 0.00 – 0.85 Total Crashes: 35 (10 injury crashes, 1 fatal crash)

LOSS: III (all collisions); III (injury & fatal collisions)

Significant Crash Pattern: Off-road, fixed object

Off-Road (Includes Fixed Object) Collision Analysis Total Crashes: 21 (6 injury crashes, 1 fatal crash)

Causal Factor: Of the 21 off-road crashes, 19 were fixed object type crashes and 2 were

overturning. The fixed object crashes were primarily guard rail and cable rail crashes, which

typically protect from more severe crashes. Most of the crashes occurred during poor road

conditions between MP 0.20 and MP 0.50, which is a curve. The fatal crash occurred at

MP 0.30 during poor roadway conditions, when a vehicle lost control left the roadway and hit

a guardrail causing the vehicle to overturn.

Recommendation: Consider installing curve warning signs and chevrons for the curve at

MP 0.30.

Segment 2: Peoria Street Interchange – MP 0.85 – 2.60 Total Crashes: 54 (18 injury crashes, 1 fatal crash)

LOSS: II (all collisions); III (injury & fatal collisions)

Significant Crash Pattern: Off-road, fixed object, overturning

Off-Road (Includes Fixed Object and Overturning) Collision Analysis Total Crashes: 29 (11 injury crashes, 1 fatal crash)

Causal Factor: Of the 29 off-road crashes, 22 were fixed object type crashes, 6 were overturning,

and there was 1 sideswipe same direction crash. Ten of the fixed object crashes were cable

rail crashes, which typically protect from more severe crashes. The fatal crash was an

overturning type crash.

Recommendation: No recommendations.

Segment 6: Gartrell Road Interchange – MP 7.04 – 9.79 Total Crashes: 121 (36 injury crashes, 1 fatal crash)


Significant Crash Pattern: Off-road, fixed object, overturning, wild animal

November 2017 470B MP 0.00 – MP 46.38

Page | B-9

Off-Road (Includes Fixed Object and Overturning) Collision Analysis Total Crashes: 67 (25 injury crashes, 1 fatal crash)


overturning. Of the 48 fixed object crashes, 25 were cable rail crashes, which typically protect

from more severe crashes. The fatal crash was an overturning type crash. A cluster of the off-

road crashes occurred around MP 7.10, which is immediately east of a curve.

Recommendation: Wider inside shoulders would give drivers more time to correct before

leaving the roadway, helping to reduce off-road crashes.

Wild Animal Collision Analysis Total Crashes: 25 (3 injury crashes)

Causal Factor: All 25 wild animal crashes involved deer. In 2013 additional fencing was installed

to prevent wild animal crashes. Since that time only one crash occurred.


Segment 8: Quincy Avenue – MP 12.03 – 14.85 Total Crashes: 47 (11 injury crashes, 4 fatal crashes)

LOSS: II (all collisions); II (injury & fatal collisions)



Causal Factor: Of the 30 off-road crashes in this segment, 26 were fixed object type. The fixed

object crashes were primarily cable rail crashes, which typically protect from more severe

crashes. The crashes were spread across the corridor, although there was a small cluster

around MP 14.20, which is on a slight curve. The fatal crash occurred at MP 14.75 when a

northbound vehicle left the right side of the road and then overcorrected, overturning in the

median. There is a cable rail at this location, which the vehicle rolled over.


leaving the roadway, helping to reduce off-road crashes. Additionally, consider installing

curve warning signs and chevrons for the curve at MP 14.20.

Segment 10: 6th Parkway Interchange – MP 17.68 – 19.77 Total Crashes: 44 (13 injury crashes, 1 fatal crash)

LOSS: II (all collisions); II (injury & fatal collisions)

Significant Crash Pattern: Wild animal, rear-end

Wild Animal Collision Analysis Total Crashes: 15 (3 injury crashes)

Causal Factor: All 15 wild animal crashes involved deer. Seven of the wild animal crashes

occurred around MP 19.00. There appears to be wild animal fencing in this area.

Recommendation: Check the existing wild animal fencing around MP 19.00 to see if any

upgrades or repairs are required.

November 2017 470B MP 0.00 – MP 46.38

Page | B-10

Rear-end Collision Analysis Total Crashes: 7 (4 injury crashes)

Causal Factor: Although rear-end crashes were a statistically significant crash type, only seven

occurred in the corridor with no large clusters or patterns. There is likely some congestion

around the evening peak hour.


Segment 11: I-70 – MP 19.78 – 22.51 Total Crashes: 46 (14 injury crashes)



Off-Road (Includes Fixed Object) Collision Analysis Total Crashes: 31 (13 injury crashes)



typically protect from more severe crashes. A large cluster of crashes occurred around

MP 20.00, which is a curve. Although most of the crashes in this cluster were barrier crashes.

This curve has both warning signs and chevrons.



Segment 13: 64th Avenue – MP 25.01 – 26.68 Total Crashes: 34 (14 injury crashes)

LOSS: III (all collisions); IV (injury & fatal collisions)


Off-Road (Includes Fixed Object) Collision Analysis Total Crashes: 30 (13 injury crashes)



typically protect from more severe crashes. A cluster of off-road crashes occurred around

MP 26.00, which is a curve. Most of the crashes in this cluster were barrier crashes. This curve

has both warning signs and chevrons.



November 2017 470B MP 0.00 – MP 46.38

Page | B-11

Segment 14: Peña Boulevard – MP 26.69 – 29.20 Total Crashes: 38 (14 injury crashes)


Significant Crash Pattern: Fixed object, sideswipe same direction

Fixed Object Collision Analysis Total Crashes: 14 (5 injury crashes)

Causal Factor: Almost all the fixed object crashes were guard rail or cable rail crashes, which

typically protect from more severe crashes.


Sideswipe Same Direction Collision Analysis Total Crashes: 7 (1 injury crash)

Causal Factor: Most of the sideswipe same direction crashes occurred around MP 27.80, which

is near the Peña Boulevard interchange. The crashes mostly involved cars changing lanes to

merge or exit the highway.


Segment 19: Nome Road/US 85 – MP 36.94 – 39.98 Total Crashes: 48 (13 injury crashes, 1 fatal crash)


Significant Crash Pattern: Off-road, fixed object, sideswipe same direction




typically protect from more severe crashes. There is a cluster of crashes around MP 37.10,

which is on a curve. Another cluster of crashes occurred around MP 38.70. The fatal crash

occurred at MP 39.55, when a vehicle lost control entered the median of the roadway. The

vehicle was traveling at such a high speed that it knocked over 12 cable rail posts before

traveling through a guardrail and becoming airborne over Riverdale Road, where it

eventually landed on its roof.


leaving the roadway, helping to reduce off-road crashes. Additionally, consider installing

curve warning signs and chevrons for the curve at MP 37.10.

Sideswipe Same Direction Collision Analysis Total Crashes: 8 (3 injury crashes)

Causal Factor: The sideswipe same direction crashes occurred throughout the segment with no

apparent patterns.


November 2017 470B MP 0.00 – MP 46.38

Page | B-12

Intersection Crashes

The E-470 ramp terminals were included as part of the safety assessment study area. Table B-4

provides the number of crashes that occurred at each ramp terminal along E-470 during the five-year

study period. The intersections with a high number of crashes will be analyzed further in the

following section.

Table B-4: Intersection Crashes

MP Interchange

Northbound Ramp Terminal Southbound Ramp Terminal

PDO Crashes

Injury Crashes

Fatal Crashes

Total Crashes

PDO Crashes

Injury Crashes

Fatal Crashes

Total Crashes

0.47 Jamaica St 4 2 - 6 1 - - 1

1.71 Peoria St 2 2 - 4 4 2 - 6

3.5 Chambers Rd 3 1 - 4 5 - - 5

4.38 Jordan Rd 16 3 - 19 8 3 - 11

8.89 Gartrell Rd 1 1 - 2 2 2 - 4

10.69 Smoky Hill 10 8 - 18 18 9 - 27

13.35 Quincy Ave 3 2 - 5 3 1 - 4

16.35 Jewell Ave 2 - - 2 - - - -

19 6th Ave 1 - - 1 - - - -

30.56 96th Ave 1 - - 1 - - - -

31.61 104th Ave 1 - - 1 - 1 - 1

34.13 120th Ave 4 9 - 13 3 3 - 6

43.82 Colorado Blvd - 1 - 1 - - - -

44.84 York St 1 1 - 2 - - - -

November 2017 470B MP 0.00 – MP 46.38

Page | B-13

Jordan Road Northbound Terminal – MP 4.38 Total Crashes: 19 (3 injury crashes)

Significant Crash Pattern: No significant crash types, although it should be noted two of the

crashes were bicycle crash types (See Figure B-7).

Figure B-7: Jordan Road, Northbound Terminal Crashes

Jordan Road Southbound Terminal – MP 4.38 Total Crashes: 11 (3 injury crashes)

Significant Crash Pattern: Broadside. It should be noted there was also one bicycle and one

pedestrian crash (See Figure B-8).

Broadside Collision Analysis Total Crashes: 5 (no injury crashes)

Causal Factor: Of the broadside crashes, four were caused by a northbound vehicle failing to stop

for the red light and hitting a westbound vehicle.

Recommendation: Consider investigating the signal timing and progression as a possible

mitigation for these crashes. Consider installing reflective tape on the backplates at this

intersection to increase signal visibility.

November 2017 470B MP 0.00 – MP 46.38

Page | B-14

Figure B-8: Jordan Road, Southbound Terminal Crashes

Smoky Hill Road Northbound Terminal – MP 10.69 Total Crashes: 18 (8 injury crashes)

Significant Crash Pattern: Approach turn (See Figure B-9).

Approach Turn Collision Analysis Total Crashes: 7 (5 injury crashes)

Causal Factor: Of the seven broadside crashes, five were caused by an eastbound vehicle turning

left in front of a westbound vehicle.

Recommendation: Monitor the eastbound left-turn to determine if a protected only left turn is

needed.

Figure B-9: Smoky Hill Road, Northbound Terminal Crashes

November 2017 470B MP 0.00 – MP 46.38

Page | B-15

Smoky Hill Road Southbound Terminal – MP 10.69 Total Crashes: 27 (18 injury crashes)

Significant Crash Pattern: Approach turn (See Figure B-10).

Approach Turn Collision Analysis Total Crashes: 12 (4 injury crashes)

Causal Factor: Of the 12 broadside crashes, 11 were caused by a westbound vehicle turning left

in front of an eastbound vehicle.

Recommendation: Consider protecting the westbound left-turn.

Figure B-10: Smoky Hill Road, Southbound Terminal Crashes

November 2017 470B MP 0.00 – MP 46.38

Page | B-16

120th Street Northbound Terminal – MP 34.13 Total Crashes: 13 (9 injury crashes)

Significant Crash Pattern: Broadside (See Figure B-11).

Broadside Collision Analysis Total Crashes: 12 (8 injury crashes)

Causal Factor: All broadside crashes at this intersection were caused by a northbound vehicle

on the ramp failing to stop at the stop sign or failing to yield to through vehicles on

120th Street.

Recommendation: Consider signalizing the intersection.

Figure B-11: 120th Street, Northbound Terminal Crashes

November 2017 470B MP 0.00 – MP 46.38

Page | B-17

Ramp Crashes

The number of crashes that occurred on ramps along E-470 are shown in Table B-5 by interchange.

Table B-5: Ramp Crashes

MP Interchange PDO Crashes Injury

Crashes Fatal

Crashes Total

Crashes

0 I-25 6 3 - 9

0.47 Jamaica St 1 1 - 2

1.71 Peoria St 5 - - 5

3.5 Chambers Rd 2 2 - 4

4.38 Jordan Rd 3 2 - 5

5.18 US 83 Parker Rd 9 4 - 13

8.89 Gartrell Rd 2 - - 2

10.69 Smoky Hill 9 7 - 16

13.35 Quincy Ave 5 - - 5

16.35 Jewell Ave 1 3 - 4

19 6th Ave - 1 - 1

20.55 I-70 5 3 - 8

24.48 56th Ave 1 - - 1

25.52 64th Ave - - - -

27.85 Peña Blvd 11 8 - 19

30.56 96th Ave 1 - - 1

31.61 104th Ave 2 1 - 3

34.13 120th Ave - - - -

35.49 I-76 1 2 - 3

38.38 Nome Rd (US 85) 2 4 - 6

41.59 Quebec St - - - -

43.82 Colorado Blvd - - - -

44.84 York St 1 - - 1

46.38 I-25 1 1 1 3

November 2017 470B MP 0.00 – MP 46.38

Page | B-18

Conclusion and Recommendations

These conclusions and recommendations are based on the analysis of five years of crash history and review of video log. A total of 1,191 crashes were reported along E-470 between MP 0.00 and MP 46.38 from January 1, 2011 through December 31, 2015. These crashes include all ramp crashes, ramp terminal crashes, and mainline crashes. Of these, 355 were injury collisions and 10 were fatal collisions; 453 people were injured and 11 were killed. Fixed object crashes were the most common crash type (39 percent). Other common crash types were overturning and sideswipe same direction (10 percent each).

Mainline Analysis

Most segments within the study area performed better than expected in terms of safety (LOSS II) when compared to other urban divided freeways within Colorado. The segments with poor levels of service of safety typically had a high frequency of off-road crashes and fixed object crashes. Recommendations include:

• Evaluate the inside shoulder width for segments with high off-road crashes. A wider shoulder would allow more time for a driver to correct after traveling out of the lane before leaving the roadway.

• Consider installing curve warning signs and chevrons for the curves at MP 0.30, MP 14.20, and MP 37.10.

• Check the existing wild animal fencing around MP 19.00 to see if any upgrades or repairs are required.

Ramp Analysis

A few ramp terminal intersections had high frequency crashes. Recommendations for these locations include:

• Jordon Road Southbound Terminal (MP 4.38) – A broadside crash pattern is present at this intersection. Investigate the signal timing and progression as a possible mitigation for these crashes. Consider installing reflective tape on the backplates at this intersection to increase signal visibility.

• Smoky Hill Road Northbound Terminal (MP 10.69) – An approach turn crash pattern is present at this intersection. Monitor the eastbound left turn to determine if a protected only left turn is needed.

• Smoky Hill Road Southbound Terminal (MP 10.69) – An approach turn crash pattern is present at this intersection. Consider protecting the westbound left-turn.

• 120th Street Northbound Terminal (MP 34.13) – A broadside crash pattern is present at this intersection. Consider signalizing the intersection.

Appendix C Programmed Regional Highway Improvements

FIGURE 5-1

SELECTED PROGRAMMED REGIONALHIGHWAY IMPROVEMENTS

E-470 Toll Rate Structure Traffic and Revenue Study

25

76

76

36

36

25

225

70

7070

6

285

270

25

76

Foxfield

Lone Tree

Centennial

Greenwood Village

Cherry Hills VillageBow Mar

Columbine Valley

GlendaleAurora

DenverEdgewater

Lakewood

Wheat RidgeLakeside

Commerce City

WestminsterNorthglenn

Thornton

Bloomfield

ErieLafayette

Louisville

Superior

Parker

Denver

85

85

85

85

285

83

83

58

287

287

287

121

83

121

7036

287

93

93

93

Denver International

Airport

Adams

Jefferson

Arapahoe

Douglas

Boulder Weld

Adams

Broomfield

N

X:\TFT Group\Projects\CO 216230 E-470 Toll Rate Structure Analysis\Graphics\ArcMap\Improvements.mxd \ 8-09-17

LEGEND2018 Improvements2021 Improvements2025 Improvements2035 ImprovementsE-470 Corridor

TABLE 5-1PROGRAMMED REGIONAL HIGHWAY IMPROVEMENTS

Facility Name From To Improvement Length Counties

2018 E-470 Parker Rd. Quincy Ave. Widen from 4 to 6 lanes 8.1 Arapahoe/Douglas2021 E-470 48th Ave. Add New Interchange Adams2021 E-470 88th Ave. Add New Interchange Adams2025 104th Ave. Grandview Ponds McKay Rd. Widen from 2 to 4 Lanes 0.7 Adams2025 104th Ave. US-85 SH-2 Widen from 2 to 4 Lanes 1.8 Adams2025 144th Ave. US-287 Zuni St. Widen from 2 to 4 Lanes 3.5 Broomfield2025 144th Ave. Washington St. York St. Widen from 2 to 4 Lanes 1.0 Adams2025 144th Ave. York St. Colorado Blvd. Widen from 2 to 4 Lanes 1.0 Adams2025 160th Ave. Lowell Blvd. Sheridan Pkwy. New 2 Lanes 1.0 Broomfield2025 48th Ave. Picadilly Rd. Powhaton Rd. New 6 Lanes 3.0 Adams2025 56th Ave. Dunkirk St. Himalaya St. Widen from 4 to 6 Lanes 0.5 Denver2025 56th Ave. E-470 Imboden Rd. Widen from 2 to 6 Lanes 7.0 Adams2025 56th Ave. Havana St. Pena Blvd. Widen from 2 to 6 Lanes 4.3 Denver2025 56th Ave. Himalaya St. Picadilly Rd. Widen from 2 to 6 Lanes 1.0 Denver2025 56th Ave. Pena Blvd. Tower Rd. Widen from 4 to 6 Lanes 0.7 Denver2025 56th Ave. Picadilly Rd. E-470 Widen from 2 to 6 Lanes 1.0 Adams2025 64th Ave. Denver/Aurora City Limit Himalaya St. Widen from 2 to 6 Lanes 0.5 Adams2025 64th Ave. Harvest Rd. Powhaton Rd. New 2 Lanes 1.0 Adams2025 64th Ave. Himalaya Rd. Harvest Rd. Widen from 2 to 4 Lanes 3.0 Adams2025 64th Ave. Powhaton Rd. Monaghan Rd. New 4 Lanes 1.0 Adams2025 64th Ave. Tower Rd. Denver/Aurora City Limits Widen from 2 to 4 Lanes 0.5 Denver2025 6th Ave. Airport Blvd. Tower Rd. Widen from 2 to 6 Lanes 1.0 Arapahoe2025 6th Ave./6th Pkwy. 6th Pkwy. Harvest Rd. Widen from 2 to 6 Lanes 0.4 Arapahoe2025 6th Ave./SH 30 Tower Rd. 6th Pkwy. Widen from 2 to 6 Lanes 1.6 Arapahoe2025 6th Pkwy SH-30 E-470 New 2 Lane Road 1.3 Arapahoe2025 6th Pkwy. E-470 Gun Club Rd. Widen from 2 to 6 Lanes 0.3 Arapahoe2025 96th St. 96th St. at Northwest SH-128 Add Toll Lanes 2.3 Broomfield2025 Arapahoe Rd. Piney Creek Circle Himalaya St. Widen from 4 to 6 Lanes 1.3 Arapahoe2025 Broncos Pkwy. Jordan Rd. Parker Rd. Widen from 4 to 6 Lanes 0.8 Arapahoe2025 Broncos Pkwy. (Easter Havana St. Peoria St. Widen from 4 to 6 Lanes 1.0 Arapahoe2025 Buckley Rd. 118th Ave. Cameron Dr. Widen from 2 to 6 Lanes 1.3 Adams2025 Buckley Rd. 136th Ave. Bromley Ln. Widen from 2 to 4 lanes 2.0 Adams2025 C-470 Colorado Blvd. Wadsworth Blvd. WB: Add New Managed Lanes 8.2 Douglas/Jefferson2025 C-470 I-25 Colorado Blvd. WB: Add New Managed Lanes 4.1 Douglas2025 C-470 Wadsworth Blvd. I-25 EB: Add New Managed Lanes 10.8 Douglas/Jefferson2025 Chambers Rd. Main Street Lincoln Ave. Widen from 2 to 4 Lanes 1.4 Douglas2025 E. Bromley Ln. Tower Rd. I-76 Widen from 4 to 6 Lanes 1.1 Adams2025 E-470 I-76 South Ramps Add New Interchange Adams


2025 E-470 Potomac Add New Interchange Adams2025 Green Valley Ranch Blvd. Chambers Rd. Telluride St. Widen from 4 to 6 Lanes 1.5 Denver2025 Green Valley Ranch Blvd. Chambers Rd. Pena Blvd. Widen from 2 to 4 Lanes 1.0 Denver2025 Green Valley Ranch Blvd. Telluride St. Tower Rd. Widen from 4 to 6 Lanes 0.5 Denver2025 Gun Club Rd. 1.5 Miles s/of Quincy Ave. Quincy Ave. Widen from 2 to 6 Lanes 1.6 Arapahoe2025 Hampden Ave. Picadilly Rd. Gun Club Rd. Widen from 2 to 4 Lanes 1.1 Arapahoe2025 Harvest Rd. 56th Ave. 64th Ave. New 3 Lanes 1.0 Adams2025 Harvest Rd. 6th Ave. I-70 New 6 Lanes 1.1 Adams2025 Harvest Rd. Alameda Ave. 6th Ave. Widen from 3 to 6 Lanes 1.0 Arapahoe2025 Harvest Rd. I-70 56th Ave. New 6 Lanes 4.1 Adams2025 Harvest Rd. Mississippi Ave. Alameda Ave. New 6 Lanes 1.0 Arapahoe2025 Huron St. 150th Ave. 160th Ave. Widen from 2 to 4 lanes 1.3 Broomfield2025 Huron St. 160th Ave. SH-7 Widen from 2 to 4 lanes 1.2 Broomfield2025 I-25 120th Ave. SH-7 Add 1 Toll/Managed Lane each 6.0 Adams/Broomfield2025 I-25 US-36 Thornton Pkwy. Add 1 New SB Lane 2.8 Adams2025 I-70 Harvest Rd. Add New Interchange Adams/Arapahoe2025 I-70 I-25 Chambers Rd. Add 2 New Managed Lanes 3.8 Denver/Adams2025 I-70 Picadilly Rd. Add New Interchange Adams2025 Jefferson Pkwy. Candelas Pkwy. New Partial Interchange Jefferson2025 Jefferson Pkwy. Indiana St.s/o SH-128 New Partial Interchange Jefferson2025 Jefferson Pkwy. SH-72 New Partial Interchange Jefferson2025 Jefferson Pkwy. SH-93 SH-128 New 4 Lane Toll Road 10.2 Jefferson2025 Jewell Ave. E-470 Gun Club Rd. Widen from 2 to 6 Lanes 0.5 Arapahoe2025 Jewell Ave. Gun Club Rd. Harvest Rd. Widen from 2 to 6 Lanes 1.0 Arapahoe2025 Jewell Ave. Himalaya Rd. E-470 Widen from 3 to 6 Lanes 1.4 Arapahoe2025 Lincoln Ave. Keystone Blvd. Parker Rd. Widen from 4 to 6 Lanes 1.6 Douglas2025 Lincoln Ave. Peoria St. 1st Ave. Widen from 4 to 6 Lanes 0.7 Douglas2025 Pena Blvd. Jackson Gap St. West DIA Terminal Widen from 6 to 8 Lanes 1.7 Denver2025 Pena Blvd. Tower Rd. Add on-ramp to WB Pena Denver2025 Pena Blvd. I-70 E-470 Widen from 4 to 8 Lanes 6.4 Denver2025 Peoria St. E-470 .75 miles s/o Lincoln Ave. Widen from 2 to 4 Lanes 1.9 Douglas2025 Picadilly Rd. 48th Ave. 56th Ave. Widen from 2 to 6 lanes 1.2 Adams2025 Picadilly Rd. 56th Ave. 70th Ave./Aurora City New 6 Lanes 1.7 Adams2025 Picadilly Rd. 6th Ave. Colfax Ave. Widen from 2 to 6 Lanes 1.6 Arapahoe2025 Picadilly Rd. 70th Ave. 82nd Ave. New 6 Lanes 1.5 Denver2025 Picadilly Rd. Colfax Ave. I-70 New 6 Lanes 0.3 Adams2025 Picadilly Rd. Jewell Ave. 6th Pkwy. New 4 Lanes 2.7 Arapahoe2025 Picadilly Rd. l-70 Smith Rd. Widen from 2 to 6 Lanes 0.5 Adams

Network Year of Improvement



2025 Picadilly Rd. Smith Rd. 48th Ave. Widen from 2 to 6 Lanes 2.2 Adams2025 Quebec St. 120th Ave. 128th Ave. Widen from 2 to 4 Lanes 1.0 Adams2025 Quebec St. 132nd Ave. 160th Ave. Widen from 2 to 4 Lanes 3.S Adams2025 Quincy Ave. Plains Pkwy./Copperleaf Gun Club Rd. Widen from 2 to 6 Lanes 0.6 Arapahoe2025 Ridgegate Pkwy. Havana St. Lone Tree E. City Limit Widen from 2 to 4 Lanes 1.8 Douglas2025 SH-2 72nd Ave. I-76 Widen from 2 to 4 Lanes 7.5 Adams2025 SH-7 Boulder County Line Sheridan Pkwy. Widen from 2 to 4 Lanes 2.5 Broomfield2025 SH-7 Sheridan Pkwy. I-25 Widen from 2 to 6 Lanes 1.5 Broomfield2025 Sherdan Pkwy. NW Pkwy. SH-7 Widen from 2 to 4 Lanes 1.3 Broomfield2025 Sheridan Blvd. Lowell Blvd. NW Pkwy. Widen from 2 to 4 Lanes 1.1 Broomfield2025 Tower Rd. 38th/40th Ave. Green Valley Ranch Widen from 2/4 to 6 Lanes 1.0 Denver2025 Tower Rd. 48th Ave. 56th Ave. Widen from 4 to 6 Lanes 1.0 Denver2025 Tower Rd. 56th Ave. Pena Blvd. Widen from 4 to 6 Lanes 2.4 Denver2025 Tower Rd. 6th Ave. Colfax Ave. New 2 Lanes 1.0 Arapahoe2025 Tower Rd. Colfax Ave. Smith Rd. Widen from 2 to 6 Lanes 1.0 Adams2025 Tower Rd. Pena Blvd. 104th Ave. Widen from 2 to 4 Lanes 3.8 Adams2025 Tower/Buckley Rd. 105th Ave. 118th Ave. New 4 Lanes 2.0 Adams2025 Washington St. 144th Ave. 152 Ave. Widen from 2 to 4 Lanes 0.7 Adams2025 Washington St. 152nd Ave. 160 Ave. Widen from 2 to 4 Lanes 1.4 Adams2025 York St. 160th Ave. (SH-7) 168th Ave. Widen from 2 to 4 Lanes 1.0 Adams2025 York St. E-470 SH-7 Widen from 2 to 4 Lanes 0.7 Adams2035 104th Ave. Marion St. Colorado Blvd. Widen from 4 to 6 Lanes 1.6 Adams2035 104th Ave. McKay Road US-85 Widen from 2 to 4 Lanes 1.9 Adams2035 120th Ave. E-470 Picadilly Rd. Widen from 2 to 6 Lanes 2.6 Adams2035 120th Ave. Sable Blvd. E-470 Widen from 2 to 6 Lanes 2.0 Adams2035 152nd Ave. Washington St. York St. Widen from 2 to 4 Lanes 1.2 Adams2035 48th Ave. Imboden Rd. Quail Run Rd. Widen from 2 to 6 Lanes 1.0 Adams2035 48th Ave. Powhaton Rd. Monaghan Rd. New 6 Lanes 1.0 Adams2035 64th Ave. Harvest Rd. Powhaton Rd. Widen from 2 to 4 Lanes 1.0 Adams2035 6th Pkwy. SH-30 E-470 Widen from 2 to 6 Lanes 1.3 Arapahoe2035 96th Ave. SH-2 Tower Road Widen from 2 to 4 Lanes 5.0 Adams2035 96th Ave. Tower Rd. Picadilly Rd. Widen from 2 to 6 Lanes 2.0 Adams2035 Arapahoe Rd. Himalaya Way Liverpool St. Widen from 4 to 6 lanes 0.5 Arapahoe2035 C-470 Broadway I-25 EB: Add 1 Toll/Managed Lane 6.6 Douglas2035 C-470 Colorado Blvd. Lucent Blvd. WB: Add 1 Toll/Managed Lane 3.7 Douglas2035 C-470 S. Kipling Pkwy. Wadsworth Blvd. EB: Add 1 Toll/Managed Lane 3.0 Jefferson2035 C-470 Wadsworth Blvd. S. Kipling Pkwy. WB: Add 1 Toll/Managed Lane 1.4 Jefferson2035 Colorado Blvd. 144th Ave. 168th Ave. Widen from 0/2 to 4 Lanes 3.7 Adams


2035 E. Bromley Ln. Hwy 85 Sable Blvd. Widen from 4 to 6 Lanes 0.5 Adams2035 E-470 I-25 South Parker Rd. Widen from 6 to 8 Lanes 5.5 Arapahoe2035 E-470 I-25 North I-76 Widen from 4 to 6 Lanes 11.0 Adams2035 E-470 I-70 Pena Blvd. Widen from 4 to 6 Lanes 7.4 Adams/Denver2035 E-470 Pena Blvd. I-76 Widen from 4 to 6 anes 7.6 Adams/Denver2035 E-470 Quincy Ave. I-70 Widen from 4 to 6 Lanes 7.0 Arapahoe2035 E-470 Parker Rd. Quincy Ave. Widen from 6 to 8 lanes 8.1 Arapahoe/Douglas2035 Gun Club Rd. Yale Ave. Mississippi Ave. Widen from 2/4 to 6 Lanes 2.1 Arapahoe2035 Hampden Ave./Havana St. Florence St. s/o Yale Ave. Widen from 5 to 6 Lanes 1.4 Denver2035 Harvest Rd. 56th Ave. 64th Ave. Widen from 3 to 6 Lanes 1.0 Adams2035 Harvest Rd. Jewell Ave. Mississippi Ave. Widen from 2 to 6 lanes 1.0 Arapahoe2035 I-225 I-25 Yosemite St. Interchange Capacity Denver2035 I-70 E-470 Interchange Capacity Adams/Arapahoe2035 Imboden Rd. 48th Ave. 56th Ave. Widen from 2 to 6 Lanes 1.0 Adams2035 Lincoln Ave. 1st St. Keystone Blvd. Widen from 4 to 6 Lanes 1.8 Douglas2035 Main Street Lone Tree E. City Limit Chambers Rd. Widen from 2 to 4 lanes 0.9 Douglas2035 Monaghan Rd. Quincy Ave. Yale Ave. New 6 Lanes 2.0 Arapahoe2035 Parker Rd. (SH-83) Quincy Ave. Hampden Ave. Widen from 6 to 8 Lanes 1.0 Arapahoe2035 Peoria St. .75 miles s/o Lincoln Ave. Main Street Widen from 2 to 4 Lanes 0.5 Douglas2035 Picadilly Rd. 82nd Ave. 96th Ave. New 6 Lanes 1.8 Adams2035 Picadilly Rd. 96th Ave. 120th Ave. New 6 Lanes 3.0 Adams2035 Powhaton Rd. Smoky Hill Rd. County Line Rd. Widen from 2 to 6 Lanes 1.0 Arapahoe2035 Quail Run Rd. I-70 48th Ave. New 6 Lanes 3.0 Adams2035 Quincy Ave. Hayesmount Rd. Watkins Rd. Widen from 2 to 6 Lanes 2.0 Arapahoe2035 Quincy Ave. Monaghan Rd. Hayesmount Rd. Widen from 2 to 6 Lanes 1.1 Arapahoe2035 SH-7 Riverdale Rd. US-85 Widen from 2 to 4 Lanes 1.1 Adams2035 SH-7 164th Ave. Dahlia St. Widen from 2 to 4 Lanes 2.2 Adams2035 Smoky Hill Rd. Pheasant Run Pkwy. Versailles Pkwy. Widen from 4 to 6 Lanes 4.4 Arapahoe2035 Tower Rd. 6th Ave. Colfax Ave. Widen from 2 to 6 Lanes 1.0 Arapahoe2035 Tower Rd. Pena Blvd. 104th Ave. Widen from 4 to 6 Lanes 3.8 Adams2035 Watkins Rd. Quincy Ave. I-70 Widen from 2 to 6 Lanes 7.1 Arapahoe2035 Yale Ave. Monaghan Rd. Hayesmount Rd. Widen from 2 to 6 Lanes 1.1 Arapahoe2035 York St. 152nd Ave. E-470 Widen from 2 to 4 Lanes 0.2 Adams



Appendix D Cost Estimation Worksheets

1 Quincy – I‐70: 6 Lanes (2026)7 miles at $9M/mile* $63 M

Add Special Structures Bridges ** Number Length Width Unit Cost Total Cost

‐‐Coal Creek $5.90 M 2 430 34 200.00$ 5,848,000.00$

‐‐SB on Ramp from Gun Club $2.80 M 2 250 34 160.00$ 2,720,000.00$

‐‐Colfax $2.80 M 2 250 34 160.00$ 2,720,000.00$

‐‐I‐70 $6.30 M 2 460 34 200.00$ 6,256,000.00$

‐‐19th Street $2.10 M 2 190 34 160.00$ 2,067,200.00$

‐‐SB off ramp to Gun Club $3.00 M 2 280 34 160.00$ 3,046,400.00$

‐‐Smith Road and Railroad $5.60 M 2 415 34 200.00$ 5,644,000.00$

Slope Paving Cut Back ($300k x 4) $1.20 M

Toll Plaza Retrofit $1.00 M

Total Cost Quincy ‐ I‐70 $94 M

2 I‐70 ‐ Peña: 6 Lanes7.5 Miles at $9M/mile* $68 M

Add Special Structures Bridges **


Toll Plaza Retrofit $1 M

Total Cost I‐70 ‐ Peña $70 M

3 Peña – I‐76: 6 Lanes7.5 miles at $9.0M/mile* $68 M


‐‐Pena $6.00 M 2 450 34 200.00$ 6,120,000.00$

‐‐I‐76: $9.50 M 2 700 34 200.00$ 9,520,000.00$

‐‐Burlington Ditch $2.40 M 2 220 34 160.00$ 2,393,600.00$

‐‐Buckley Road $2.20 M 2 200 34 160.00$ 2,176,000.00$

‐‐O'Brien Canal $2.40 M 2 220 34 160.00$ 2,393,600.00$

‐‐120th Avenue $3.40 M 2 310 34 160.00$ 3,372,800.00$

Slope Paving Cut Back ($300k x 5) $1.50 m


Total Cost Peña – I‐76 $96 M

4 I‐25 (S) – Parker: 6 Lanes5.5 miles widening to the inside

Detailed Cost Estimate *** $17 M

(Includes Toll Plaza Retrofit)

5 Parker – Smoky Hill: 8 Lanes5.25 miles paving only at $2.8M/mile**** $15 M

Ramp Reconfiguration

‐Gartrell $0.50 M

‐Smoky Hill $0.50 M

Total Cost Parker – Smoky Hill $16 M

6 Smoky Hill ‐ I‐70: 8 Lanes 9.5 miles paving only at $2.8M/mile**** $27 M


‐E Quincy Ave $0.50 M

‐E Jewell Ave $0.50 M

‐E 6th Ave $0.50 M


7 I‐76 – US 85: 6 Lanes

2.5 miles at $9M/mile* $23 M


‐‐US 85 $11.00 M 2 775 34 200.00$ 10,540,000.00$

‐‐Second Creek $2.80 M 2 260 34 160.00$ 2,828,800.00$


Total Cost I‐76 – US 85 $37 M

8 US 85 – I‐25 (N): 6 Lanes 8.5 miles at $9M/mile* $77 M


‐‐S Platte $12.0 M 2 895 34 200.00$ 12,172,000.00$

‐‐Cloverdale $3.2 M 2 290 34 160.00$ 3,155,200.00$

‐‐Holly $2.7 M 2 250 34 160.00$ 2,720,000.00$

‐‐York $3.0 M 2 270 34 160.00$ 2,937,600.00$

‐‐Irrigation Channel North of York $3.2 M 2 290 34 160.00$ 3,155,200.00$




9 Peña – I‐76: 8 Lanes 7.5 miles paving only at $2.8M/mile**** $21 M


‐96th Ave $1 M

‐104th Ave $0.50 M

‐120th Ave $0.50 M


10 I‐76 – US 852.5 miles paving only at $2.8M/mile**** $7 M


*Per mile cost is based on 2013 detailed estimate done for similar widening from Quincy to I‐70 with structures and toll plaza

modifications removed. Cost per mile was was inflated to 2017 dollars using the latest US government CPI data (Cumulative

rate of inflation 5.1%). Costs included capital constuction, engineering and contingencies.

*** Unique widening to inside: See detailed spreadsheet

**** Cost Per Mile for 4th lane widening determined. Added costs of potential interchange rebuilds

** Structures to be widened to the full 4 lane width

Date Prepared: December 13, 2017

Unit Unit Cost Quantity Extended Cost

1 Clearing and Grubbing AC $3,400.00 $02 Removal of Asphalt Mat SY $7.00 21,511 $150,5773 Earthwork (Embankment Material) CY $10.00 0 $0 Includes 7% Shrinkage and fluff factor

4 Pavement - Hot Mix Asphalt Ton $85.00 50,000 $4,250,000 based on typical sections

5 ABC (Class 6) Ton $27.00 47,000 $1,269,000 based on typical sections

6 Curb and Gutter LF $30.00 $07 Sidewalk SY $55.00 $0 6" depth

8 Trail SY $15.00 $0 Crusher fines

9 Bridge - Roadway SF $135.00 $0ROADWAY AND BRIDGE SUB-TOTAL $5,669,577

$5,669,577

% Used CostN / A $5,669,577 ( A )

30.0% $1,700,873 ( B )

Minor Construction Revisions 15.0% $850,437 ( C )

0.0% $0 ( D)

5.0% $283,479 ( E )

5.0% $283,479 ( F)

5.0% $283,479 ( G )

10.0% $566,958 ( H )

5.0% $283,479 ( I )

5.0% $283,479 (J)

10.0% $1,020,524 (K)

$11,226,000 ( L )

Engineering and ConstructionNot Used ( M )

Design Engineering 10% of ( K ) 10.0% $1,122,600 ( N )

Construction Engineering 15% of ( K ) 15.0% $1,683,900 ( N )

$2,807,000 ( O )

Right of Way Pay Unit Unit Cost Quantity

Right-of-Way and Easements AC Varies Varies $0 ( P )

$0 ( Q)

$14,033,000

$2,806,600

(1 - 2%) of (A)Erosion Control (2 - 5%) of (A)Environmental Mitigation

Landscape (1 - 20%) of (A)

Opinion of Probable Construction Costs

Signing and Striping (1 - 5%) of (A)Construction Signing & Traffic Control (2 - 20%) of (A)Lighting (1 - 5%) of (A)

In providing opinions of probable construction cost, the Client understands that Felsburg Holt & Ullevig has no control over costs or the price of labor, equipment or materials, or over the

Contractor's method of pricing, and that the opinions of probable construction costs provided herein are to be made on the basis of our qualifications and experience. FHU makes no

warranty, expressed or implied, as to the accuracy of such opinions as compared to bid or actual costs.

Mobilization (4 - 20%) of (A+B+C+D+E+F+G+H+I)

Total of Construction Bid Items (A+B+C+D+E+F+G+H+I+J+K)

Total Environmental & Engineering (M+N)

Total ROW (P)

Cost/MILE (L+O+Q)

Total Project Cost (L+O+Q)

(1 - 5%) of (A)

Contingencies (10 - 30%) of (A)

6-8 Lane Widening


Item Notes

% RangeProject Construction Bid Items Project Dependent

(10 - 30%) of (A)Irrigation



1 Toll Plaza Retrofit AC $350,000.00 1 $350,0002 Removal of Asphalt Mat SY $7.00 21,511 $150,5773 Earthwork (Embankment Material) CY $10.00 145,006 $1,450,064 Includes 7% Shrinkage and fluff factor

4 Pavement - Hot Mix Asphalt Ton $85.00 50,000 $4,250,000 11" Asphalt

5 ABC (Class 6) Ton $27.00 47,000 $1,269,000 12" ABC or CTS


8 Trail SY $15.00 $0 Crusher fines

9 Bridge - Roadway SF $135.00 $0ROADWAY AND BRIDGE SUB-TOTAL $7,469,641

$7,469,641

% Used CostN / A $7,469,641 ( A )

30.0% $2,240,892 ( B )

Minor Construction Revisions 15.0% $1,120,446 ( C )

0.0% $0 ( D)

5.0% $373,482 ( E )

5.0% $373,482 ( F)

5.0% $373,482 ( G )

10.0% $746,964 ( H )

5.0% $373,482 ( I )

5.0% $373,482 (J)

10.0% $1,344,535 (K)

$14,790,000 ( L )

Engineering and Construction



$2,219,000 ( O )



$0 ( Q)

$17,009,000


E-470- I-25 to Parker Inside Widening


Item Notes

% RangeProject Construction Bid Items Project Dependent

(1 - 5%) of (A)

Irrigation (1 - 2%) of (A)Erosion Control (2 - 5%) of (A)Environmental Mitigation (1 - 5%) of (A)

(10 - 30%) of (A)



In providing opinions of probable construction cost, the Client understands that Felsburg Holt & Ullevig has no control over costs or the price of labor, equipment or materials, or over the Contractor's method of pricing, and that the opinions of probable construction costs provided herein are to be made on the basis of our qualifications and experience. FHU makes no warranty, expressed or implied, as to the accuracy of such opinions as compared to bid or actual costs.




Total ROW (P)


Signing and Striping (1 - 5%) of (A)Construction Signing & Traffic Control (2 - 20%) of (A)Lighting



1 Clearing and Grubbing AC $3,400.00 1 $3,4002 Removal of Asphalt Mat SY $7.00 4,500 $31,5003 Pavement - Hot Mix Asphalt Ton $85.00 4,000 $340,000 based on typical sections

4 ABC (Class 6) Ton $27.00 2,000 $54,000 based on typical sections

5 Curb and Gutter LF $30.00 1,500 $45,0006 Sidewalk SY $55.00 1,000 $55,000 6" depth

ROADWAY AND BRIDGE SUB-TOTAL $528,900$528,900

% Used CostN / A $528,900 ( A )

2.0% $10,578 ( F)

30.0% $158,670 ( B )


0.0% $0 ( D)

5.0% $26,445 ( E )

5.0% $26,445 ( F)

5.0% $26,445 ( G )

10.0% $52,890 ( H )

5.0% $26,445 ( I )

5.0% $26,445 (J)

10.0% $96,260 (K)

$1,059,000 ( L )


Design Engineering 10% of ( K ) 10.0% $105,900 ( N )

Construction Engineering 15% of ( K ) 15.0% $158,850 ( N )

$265,000 ( O )

Traffic Signal Pay Unit Unit Cost Quantity

Traffic Signal Reset EA $250,000.00 1 $250,000 ( P )

$250,000 ( Q)

$1,574,000


Lighting (1 - 5%) of (A)Landscape (1 - 20%) of (A)




Total Traffic Signal

Total Project Cost (L+O+Q)Opinion of Probable Construction Costs

Environmental Mitigation (1 - 5%) of (A)Signing and Striping (1 - 5%) of (A)Construction Signing & Traffic Control (2 - 20%) of (A)

Erosion Control (2 - 5%) of (A)

% RangeProject Construction Bid Items Project DependentEarthwork (1 - 5%) of (A)Contingencies (10 - 30%) of (A)

(10 - 30%) of (A)Irrigation (1 - 2%) of (A)

Widening Under Bridge


Item Notes




4 ABC (Class 6) Ton $27.00 780 $21,060 based on typical sections

5 Curb and Gutter LF $30.00 900 $27,0006 Sidewalk SY $55.00 1,512 $83,160 6" depth

7 Bridge - Roadway SF $135.00 6,780 $915,300ROADWAY AND BRIDGE SUB-TOTAL $1,271,920

$1,271,920

% Used CostN / A $1,271,920 ( A )

5.0% $63,596 ( F)

30.0% $381,576 ( B )


0.0% $0 ( D)

5.0% $63,596 ( E )

5.0% $63,596 ( F)

5.0% $63,596 ( G )

10.0% $127,192 ( H )

5.0% $63,596 ( I )

5.0% $63,596 (J)

10.0% $235,305 (K)

$2,588,000 ( L )




$647,000 ( O )



$0 ( Q)

$3,235,000


Colorado Blvd


Item Notes

% RangeProject Construction Bid Items Project DependentEarthwork (1 - 5%) of (A)





Total ROW (P)


(10 - 30%) of (A)



Signing and Striping (1 - 5%) of (A)Construction Signing & Traffic Control (2 - 20%) of (A)Lighting (1 - 5%) of (A)

Irrigation (1 - 2%) of (A)Erosion Control (2 - 5%) of (A)Environmental Mitigation (1 - 5%) of (A)





5 Curb and Gutter LF $30.00 900 $27,0006 Sidewalk SY $55.00 155 $8,507 6" depth

7 Bridge - Roadway SF $135.00 10,208 $1,378,080ROADWAY AND BRIDGE SUB-TOTAL $1,699,987

$1,699,987

% Used CostN / A $1,699,987 ( A )

5.0% $84,999 ( F)

30.0% $509,996 ( B )


0.0% $0 ( D)

5.0% $84,999 ( E )

5.0% $84,999 ( F)

5.0% $84,999 ( G )

10.0% $169,999 ( H )

5.0% $84,999 ( I )

5.0% $84,999 (J)

10.0% $314,497 (K)

$3,459,000 ( L )




$865,000 ( O )



$0 ( Q)

$4,324,000






Total ROW (P)






Quebec


Item Notes



1 Clearing and Grubbing AC $3,400.00 5 $17,0002 Removal of Asphalt Mat SY $7.00 2,500 $17,5003 Pavement - Hot Mix Asphalt Ton $85.00 17,770 $1,510,450 based on typical sections



7 Wall SF $200.00 8,000 $1,600,000 Crusher fines


$7,598,335

% Used CostN / A $7,598,335 ( A )

10.0% $759,834 ( B )

30.0% $2,279,501 ( B )

Minor Construction Revisions 15.0% $1,139,750 ( C )

0.0% $0 ( D)

5.0% $379,917 ( E )

5.0% $379,917 ( F)

5.0% $379,917 ( G )

10.0% $759,834 ( H )

5.0% $379,917 ( I )

5.0% $379,917 (J)

10.0% $1,443,684 (K)

$15,881,000 ( L )




$3,970,000 ( O )



$0 ( Q)

$19,851,000

PENA


Item Notes


% RangeProject Construction Bid Items Project DependentEarthwork (10%) of (A)Contingencies (10 - 30%) of (A)








Total ROW (P)








$1,459,023

% Used CostN / A $1,459,023 ( A )

5.0% $72,951 ( F)

30.0% $437,707 ( B )


0.0% $0 ( D)

5.0% $72,951 ( E )

5.0% $72,951 ( F)

5.0% $72,951 ( G )

10.0% $145,902 ( H )

5.0% $72,951 ( I )

5.0% $72,951 (J)

10.0% $269,919 (K)

$2,969,000 ( L )




$742,000 ( O )



$0 ( Q)

$3,711,000

64th Ave


Item Notes










Total ROW (P)








$1,496,787

% Used CostN / A $1,496,787 ( A )

5.0% $74,839 ( F)

30.0% $449,036 ( B )


0.0% $0 ( D)

5.0% $74,839 ( E )

5.0% $74,839 ( F)

5.0% $74,839 ( G )

10.0% $149,679 ( H )

5.0% $74,839 ( I )

5.0% $74,839 (J)

10.0% $276,905 (K)

$3,046,000 ( L )




$762,000 ( O )



$0 ( Q)

$3,808,000






Total ROW (P)






6th Ave


Item Notes







$1,496,787

% Used CostN / A $1,496,787 ( A )

5.0% $74,839 ( F)

30.0% $449,036 ( B )


0.0% $0 ( D)

5.0% $74,839 ( E )

5.0% $74,839 ( F)

5.0% $74,839 ( G )

10.0% $149,679 ( H )

5.0% $74,839 ( I )

5.0% $74,839 (J)

10.0% $276,905 (K)

$3,046,000 ( L )




$762,000 ( O )



$0 ( Q)

$3,808,000

Jewell Ave


Item Notes










Total ROW (P)








$1,980,117

% Used CostN / A $1,980,117 ( A )

5.0% $99,006 ( F)

30.0% $594,035 ( B )


0.0% $0 ( D)

5.0% $99,006 ( E )

5.0% $99,006 ( F)

5.0% $99,006 ( G )

10.0% $198,012 ( H )

5.0% $99,006 ( I )

5.0% $99,006 (J)

10.0% $366,322 (K)

$4,030,000 ( L )




$1,008,000 ( O )



$0 ( Q)

$5,038,000






Total ROW (P)






Gartrell Road


Item Notes



1 Clearing and Grubbing AC $3,400.00 1 $3,4002 Removal of Asphalt Mat SY $7.00 500 $3,5003 Pavement - Hot Mix Asphalt Ton $85.00 600 $51,000 based on typical sections


5 Curb and Gutter LF $30.00 1,200 $36,0006 Sidewalk SY $55.00 800 $44,000 6" depth

ROADWAY AND BRIDGE SUB-TOTAL $146,000$146,000

% Used CostN / A $146,000 ( A )

2.0% $2,920 ( F)

30.0% $43,800 ( B )


0.0% $0 ( D)

5.0% $7,300 ( E )

5.0% $7,300 ( F)

5.0% $7,300 ( G )

10.0% $14,600 ( H )

5.0% $7,300 ( I )

5.0% $7,300 (J)

10.0% $26,572 (K)

$292,000 ( L )




$29,000 ( O )

Traffic SignalsPay Unit Unit Cost Quantity

Traffic Signal Reset EA $250,000.00 1 $250,000 ( P )

$250,000 ( Q)

$571,000






Total ROW (P)






Jordan Improvements


Item Notes





5 Curb and Gutter LF $30.00 1,050 $31,5006 Sidewalk SY $55.00 204 $11,220 6" depth


$1,699,725

% Used CostN / A $1,699,725 ( A )

5.0% $84,986 ( F)

30.0% $509,918 ( B )


0.0% $0 ( D)

5.0% $84,986 ( E )

5.0% $84,986 ( F)

5.0% $84,986 ( G )

10.0% $169,973 ( H )

5.0% $84,986 ( I )

5.0% $84,986 (J)

10.0% $314,449 (K)

$3,459,000 ( L )




$865,000 ( O )



$0 ( Q)

$4,324,000






Total ROW (P)






Chambers


Item Notes

2018 E-470 MASTER PLAN Plan...FELSBURG H O LT & ULLEVIG 2018 E-470 MASTER PLAN Prepared for Prepared...

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