STATE HIGHWAY 119 AND HOVER STREET

BUILD GRANT

MAY 18, 2020

TABLE OF CONTENTS

TABLE OF

CONTENTS

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT

PROJECT

DESCRIPTION

PG 1

PG 6 PG 8 PG 10

PG 30PG 24

SELECTION

CRITERIA

Primary Selection Criteria

SafetyState of Good Repair Economic Competitiveness Environmental SustainabilityQuality of Life

Secondary Selection Criteria

Innovation Partnership

Funding Uses

Project Funding Plan

Project Budget by Major

Component

ENVIRONMENTAL

RISK REVIEW

PROJECT

LOCATION

GRANT FUNDS,

SOURCES, AND

USES OF ALL

PROJECT FUNDING

APPENDIX A

BENEFIT COST

ANALYSIS TECHNICAL

MEMORANDUM

BENEFIT COST

ANALYSIS

APPENDIX B

LONGMONT CAPITAL IMPROVEMENT

PROGRAM 2020-2024

APPENDIX C

LETTERS OF SUPPORT

Figure 1 - Aerial View of the SH 119 and Hover Street IntersectionFigure 2 - SH 119 and Hover Street Intersection - Northwest ViewFigure 3 - Project ComponentsFigure 4 - Critical ConnectivityFigure 5 - Typical Section - SH 119 Looking EastFigure 6 - Recently constructed underpass at SH 119 and Hover StreetFigure 7 - SH 119 Broader ImprovementsFigure 8 - Rural Urban Population DensityFigure 9 - Project ScheduleFigure 10 - Project LocationFigure 11 - Crash by type during 5-year study at SH 119 and Hover Street intersectionFigure 12 - Existing Configuration Safety Performance, Total Crash Frequency, SH 119 and Hover Street intersectionFigure 13 - Existing Configuration Safety Performance, Injury and Fatal Crashes, SH 119 and Hover Street intersectionFigure 14 - SH 119 and Hover Street Traffic SignalFigure 15 - Truck Crash Hotspots MapFigure 16 - Counts and Density of Private Primary Jobs in Work Selection Area in 2017, All Workers, 4 Mile RadiusFigure 17 - Critical Freight Corridor Designation Map - Denver Metropolitan AreaFigure 18 - Highway Bottlenecks MapFigure 19 - Employee and Money Flow between Longmont and Boulder along SH 119Figure 20 - TSP and BRT CommunicationsFigure 21 - Project Schedule

Table 1 - Geospatial DataTable 2 - Funding UsesTable 3 - Project Funding PlanTable 4 - Project Budget by Major ComponentTable 5 - Hourly Values of Travel Time SavingsTable 6 - Freight Route Destination MarketsTable 7 - Environmental ImprovementsTable 8 - PartnershipsTable 9 - Assessment of Project Risks and Mitigation StrategiesTable 10 - Benefits and Cost by Type (Discounted)

FIGURES AND TABLES

FIGURES

TABLES

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT

ACRONYMS AND ABBREVIATIONS

ACRONYMS AND ABBREVIATIONS

ADT - Average Daily Traffic BCA - Benefit Cost Analysis BCR - Benefit Cost RatioBRT - Bus Rapid TransitCatEx - Categorical ExclusionCCTV - close-circuit televisionCDOT - Colorado Department of Transportation CDPHE - Colorado Department of Public Health and EnvironmentCDPS - Colorado Department of Public Safety CIP - Capital Improvement PlanCM/GC - Construction Management/General ContractorCPW - Colorado Parks and WildlifeCRF - Crash Reduction Factors C-V2X - Cellular Vehicle to everythingCV - Connected VehicleDRCOG - Denver Regional Council of Governments DSRC - Dedicated Short-Range Communications EA - Environmental AssessmentEIS - Environmental Impact StatementEJ - Environmental JusticeESA - Environmental Site Assessment FHWA - Federal Highway AdministrationHPTE - Colorado High Performance Transportation EnterpriseI-20 - U.S. Interstate 20I-25 - U.S. Interstate 25I-29 - U.S. Interstate 29I-40 - U.S. Interstate 40I-55 - U.S. Interstate 55I-65 - U.S. Interstate 65I-70 - U.S. Interstate 70I-74 - U.S. Interstate 74I-80 - U.S. Interstate 80

I-90 - U.S. Interstate 90LCCA - Life-Cycle Cost AnalysisLCS - Lane Control Signs LOS - Level of Service LOSS - Level of Service of Safety MCC - Mayors and Commissioners Coalition MS4 - Municipal Separate Storm Sewer Systems NAFTA - North American Free Trade AgreementNAMS - Northwest Area Mobility StudyNATA - North Area Transit AllianceNHS - National Highway System NEPA - National Environmental Policy ActO&M - Operations and MaintenanceOTIS - Online Transportation Info SystemPEL - Planning and Environmental Linkage RECs - Recognized Environmental Concern ROW - Right of WayRPP - Regional Priority ProgramRTD - Regional Transportation DistrictRTP - Regional Transportation PlanSEP-14 - FHWA’s Special Experimental Project No. 14 approvalSH - State HighwaySH 119 - Colorado State Highway 119SHPO - State Historic Preservation OfficesSWQCP - Storm Water Quality Control PlansTIP - Transportation Improvement Program TMO - Transportation Management OrganizationTOC - Traffic Operations CenterTSP - Transit Signal PrioritizationUSDOT - U.S. Department of TransportationUSFWS - U.S. Fish and Wildlife ServicesUS 287 - U.S. Highway 287US 36 - U.S. Highway 36

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT

PROJECT DESCRIPTION

PROJECT DESCRIPTION

Project Overview

As shown in Figure 2, the intersection of SH 119 (also known as Ken Pratt Boulevard within Longmont) and Hover Street is a major intersection for the region and plays a vital role in the connectivity between urban and rural areas along Colorado’s Front Range – an area bounded by a western mountain range and home to approximately 85% of Colorado’s population. This project will ensure safe and efficient mobility for people and goods traveling by vehicle, transit, bicycles, and on foot – all of which are critical to the continued prosperity of the region.

Figure 1

Figure 2

Aerial View of the SH 119 and Hover Street Intersection

SH 119 and Hover Street Intersection - Northwest View

Project Description

The $26 million project is to reconstruct a skewed intersection at Colorado State Highway 119 (SH 119) and Hover Street in Longmont, Colorado – a key node that accommodates more of the traveling public than any other intersection along the heavily traveled SH 119 corridor between Longmont and Boulder. Figure 1 shows an aerial view of the intersection.

A key point in connecting people to jobs, this intersection has long been known for its congested conditions; precarious, hairpin-like turn movements; and poor access to existing transit, as well as deficient pedestrian and bicycle connectivity. With total traffic volume increasing 25% on SH 119 and 30% on Hover Street, the level of delay is expected to increase by 2 minutes (+275%) for each vehicle in the AM Peak Hour, and by 3.5 minutes (+177%) for each vehicle in the PM Peak Hour if improvements are not done (SW Longmont Ops Study Existing Conditions & 2040 Baseline Analysis Report, p 21). Options for fixing this intersection have been considered over the last 25 years, but few have provided realistic, cost-effective solutions until now. The most significant feature of the SH 119 and Hover Street intersection project will be a grade separation of one direction of travel to facilitate safer, more efficient mobility for the general public and the movement of freight between areas in rural Weld and Larimer counties to job centers and critical destinations in central Boulder County. The planned improvements have the potential to eliminate 174 crashes and have a net present value of $27.86 million and an economic benefit of $8.7 million in crash reductions alone over the 20-year life cycle of the project.

Photo depicts reduced traffic volumes during COVID-19

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT

PROJECT

DESCRIPTION

1

Figure 3

Figure 4

Project Components

Critical Connectivity

119

119

BNSF R

R

CLOVER BASIN

DR

Pedestrian/BikeUnderpassConnection

Pedestrian/BikePath

Additional LeftTurn Lanes

Pedestrian/BikeUnderpass

HOVER STREETHOVER STREET

Bike/Transit Plaza

Tunnel underHover Street

Bus Queue- jumpLane

SH 119 Bikewayto Boulder

PROJECT DESCRIPTION

BOULDER

LONGMONT

ERIE

FIRESTONE

THORNTON

BOULDER

WELD

FREDERICK

DACONO

BERTHOUD

JOHNSTOWN

MILLIKEN

LOVELAND

B O U L D E R

L A R I M E R

MEADLYONS

Relative Traffic Volume

RTD Routes

Urban Areas

County Boundaries

25

25

36

36

287

119

7

119

52

7

66

56

60

402

34

Transportation Challenges and Solutions

This area currently has a disproportionate number of crashes based on the average daily traffic (ADT), the majority of which are rear end crashes. In addition, this intersection exhibits high levels of congestion and delay. To improve these conditions and mitigate these challenges, three critical changes will be integrated into the intersection design (in Figure 3):

1. Westbound through movement will be accommodated by a new grade-separated tunnel under Hover Street to alleviate traffic congestion. Removing the westbound movement from the traffic signal phase allows a reallocation of signal time to the other priority traffic movements, thereby providing an acceptable Level of Service (LOS) for the existing and future conditions.

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT 2

PROJECT DESCRIPTION

BUSESONLY

Hover St

Sh

ldr

SH

11

9M

edia

n 12’Pedestrian/Bike Path

12’NB Lt Turn

12’NB Lt TurnShoulder

12’NB Lt Turn

12’WB Thru

12’WB Thru

12’EB Thru

12’EB Thru

12’EB Thru

12’Bus Only

12’WB On-Ramp

12’WB On-Ramp

Hover Street

12

3

Figure 5 Typical Section - SH 119 Looking East1. A barrier separated bicycle and pedestrian path through the tunnel will allow bicyclists and pedestrians to cross the north leg of Hover Street safely in both directions. (see Figure 5)

2. The east-bound bus stop at the SH 119 and Hover Street underpass will be maintained while also facilitating a proposed regional Bus Rapid Transit (BRT) route with a bus-only queue jump lane and connected vehicle (CV) technology to support transit signal prioritization (TSP).

Figure 3 on the previous page shows the different components of the future intersection of SH 119 and Hover Street that will eliminate the confusion of the current configuration.

Figure 6

Figure 7

Recently constructed underpass at SH 119 and Hover Street

SH 119 Broader Improvements

Project History

In 2018, the Southwest Longmont Operations Study recommended improvements and developed preliminary design for the intersection. The proposed improvements were combined with the larger multimodal corridor improvements along SH 119 in 2019. The recommended preliminary design for the SH 119 and Hover Street intersection project integrates the recently completed improvements for active transportation modes in the immediate area. The new underpass will connect to the existing detached 8-foot sidepath on the north, the recently constructed underpass created in 2017 (see Figure 6) further south, and other associated area improvements including a relocated transit hub/shelter with an enclosed bike shelter, plaza area with benches, and bike share.

Broader Context of Other Infrastructure Investments

The SH 119 and Hover Street intersection project helps complete a coordinated system of recent and planned safety and mobility improvements for people driving, riding transit, bicycling, and walking through the SH 119 corridor between Longmont and Boulder. The project is a critical next step in delivering a larger plan for the future

of SH 119, which aims to improve the entirety of the highway. Exhibited in Figure 7, this intersection project lays the foundation for future SH 119 projects including managed lanes, high frequency BRT, bus TSP, and a commuter bikeway. This is an important step in creating more reliable transportation choices by incorporating safe and more efficient vehicular travel and enhanced transit and bicycling infrastructure to the regional transportation system.

STATE HIGHWAY 119 AND HOVER STREET BUILD GRANT 3