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Countywide Transportation Sales Tax Projects
Traffic on South Boulder Road

Countywide Transportation Sales Tax Projects

Proposed Sales Tax Extension

The current 0.1% Transportation Sales Tax expires June 30, 2024. On August 4, the the Boulder County Board of County Commissioners (BOCC) approved asking voters to extend the sales tax at the current rate.

Learn about the proposed sales tax extension, or view a draft list of projects and programs that would be funded between 2024 and 2039 if the extension is approved by the voters. Learn more about the proposed 2022 Boulder County Ballot Issues & Measures.

Countywide Transportation Funding infographic, one page, 2022

Past Public Meetings & Hearings

Board of County Commissioners Public Hearing, August 4, 2022

On August 4, 2022, the Board of County Commissioners held a public hearing to hear from the public and determine if they would ask voters to support an extension of the tax on the November 2022 ballot. The Board voted to approve:

  • Transportation Ballot Measure Item No. 1: Resolution 2022-48; describing a proposal to extend the existing 0.10% countywide transportation sales and use tax for the purpose of continuing to fund transportation needs.
  • Item No. 2: Resolution 2022-49; approving a ballot title for the November 8, 2022 general election to extend the existing 0.10% countywide transportation sales and use tax for the purpose of continuing to fund transportation needs.

Public Meeting on Boulder County Transportation Funding, June 14, 202

On June 14, 2022, Boulder County hosted a virtual (online) open house meeting on transportation funding and the future of the county’s transportation sales tax which expires in June 2024, and options were presented for future funding of multimodal transportation system needs throughout Boulder County. At the meeting, participants had an opportunity to ask questions and provide feedback on the county’s transportation funding and options for the future. Continued public input on top transportation needs and priorities are welcome and encouraged.

View the June 14 video or presentation in English or Spanish.

For more information, contact Alexandra Phillips at 303-441-4520 or Submit comments and questions about transportation funding, investment priorities, and potential projects via an online form.

Transportation Sales Tax Overview

There are many ways to get around Boulder County, but rising costs, a growing population, and new technologies are changing how people use transportation. At the same time both construction and maintenance costs continue to rise.

To achieve our vision of a sustainable and inclusive transportation network, Boulder County works together to prioritize our transportation investments, explore new funding options, and plan for the future. The county’s Transportation Master Plan (TMP) provides a blueprint for Boulder County’s transportation system for the next 25 years.

In 2001, the communities within Boulder County came together to pass a one-tenth-of-one-percent percent sales tax to fund improvements to fulfill that vision, including road improvements, trail systems, transit services and community assistance programs to help underserved populations with their transportation needs. For twenty years the sales tax has funded hundreds of miles of improvements throughout the county that continue to serve residents, businesses and visitors.

Boulder County’s current sales tax expires on June 30, 2024. The county is asking voters to extend that tax, with the future funding used to provide safe, sustainable, and affordable transportation choices for people throughout the county for today and into the future.

Current Transportation Sales Tax

In 2007, Boulder County voters passed a countywide ballot issue to extend an existing one-tenth-of-one-percent sales tax from July 1, 2009 through June 30, 2024. The Countywide Transportation Sales Tax funds a specific list of 44 projects that includes:

  • 10 roadway improvements
  • 13 road shoulder projects
  • 6 transit projects
  • 1 Transportation Demand Management (TDM) program
  • 5 pedestrian improvements
  • 9 countywide regional sales projects.

The 2007 Ballot Issue lists five categories of projects in order to provide taxpayers with a wide range of improvements geographically and by type.

2022 marks the 13th year of the 15-year Countywide Sales Tax approved by voters in November 2007. The table below identifies current countywide Transportation Sales Tax projects planned for construction over the next three years. A full implementation schedule for all projects is available here. Projects are listed by anticipated year of implementation based on the best available information. Ongoing transit projects are listed separately at the bottom of the table. These projects use Countywide Sales Tax to increase frequencies on existing regional routes.

The April 2017 Countywide Transportation Sales Tax Update includes:

  • An overview of the program
  • An analysis of milestones
  • Recommendations for the remainder of the program

Maps of Current Sales Tax Projects

Current Project Status

Project Name Year Current Status
CO 42 Pedestrian Underpass – City of Louisville 2020 Completed
CO 42/Short Street Intersection – City of Louisville 2020 Completed
LOBO Trail – Williams Fork Connection (Twin Lakes to Spine Road) 2020 Completed
East County Line Road/Weld County Road 1 Master Plan (Erie to Longmont) 2021 Completed
RTD Rail-Trail Master Plan (Boulder to Erie) TBD In Process
South Boulder Road Widening – Mallory Street to 120th Street – City of Lafayette 2022 In Construction
71st Street Shoulders – Lookout Road to Winchester Circle 2021 Completed
US 287/Isabelle Road Intersection Safety Improvements 2021 Completed
Sugarloaf Road Climbing Lane – CO119/Boulder Canyon to top of Hill 2022 In Construction
CO 7 Bus Rapid Transit (BRT)/Corridor Design TBD In Design
US 287 Bus Rapid Transit (BRT)/Corridor Study TBD In Process
71st Street Shoulders – Winchester Circle to CO 52 2023 Design Complete
LOBO Trail – Four Mile Railroad Underpass 2022 Design Complete
East County Line Road Shoulders – CO119 to St. Vrain Creek (City of Longmont) 2023 In Design
Hygiene Road Structure Replacement 2023 In Design
LOBO Trail – Jay Road Connection – Cottonwood Trail to Spine Road 2023 In Design
Highway 66 Widening – Hover to US287 (Longmont) 2025 In Design
120th Street Shoulders – Lafayette to Dillon Road 2022 Design Complete
95th Street Reconstruction – Boulder Creek to Lookout Road 2022 In Design
Olde Stage Road Climbing Lane – Lee Hill Drive to Top of Hill 2022 In Construction
Isabelle Road Shoulders – 95th Street to US 287 2024 In Design
Highway 119 Bikeway (Boulder to Longmont) 2025 In Design

Ongoing Projects

Project Name Year Complete Current Status
BOLT Transit along Diagonal Highway 2004 Completed
JUMP Transit to Erie 2008 Completed
“Y” Transit from Boulder to Lyons 2009 Completed
“L” Transit from Longmont to US 36 2017 Completed 2017 Completed
“FLEX” Transit – Ft. Collins to Boulder 2016 In operation
Lafayette FlexRide Service 2020 In operation
Climb Route to Gold Hill 2011 In operation


Boulder County Public Works
Tim Swope, AICP
Capital Projects Coordinator

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