Segment B: 63rd Street to US 287

Preliminary Engineering Study & Environmental

Image of cars driving under railroad bridge on Colorado State Highway 7 (CO 7) in Boulder County, Colorado.

About this Segment

The CO 7 Corridor Segment B extends between 63rd Street and US 287 in Boulder County and is currently in the preliminary engineering study and environmental phase. The overall CO 7 Corridor is a critical commuter and business route (transit, biking, personal vehicle, goods movement) connecting the region to/from major employment centers and educational opportunities. CO 7 is one of the north metro region’s most heavily traveled east/west commuter corridors.

Project Area

Image of CO 7 corridor between Brighton and Boulder. The map illustrates segment B of CO 7 between 63rd Street and US 287.

The overall CO 7 Corridor project aims to provide a safe, multimodal transportation system that supports the economy, enhances the environment, and improves the quality of life for residents, commuters and visitors.

The Segment B project team is completing a comprehensive study, identifying alternatives, and developing 15% design for multimodal improvements along CO 7 between 63rd Street and US 287. The project team will incorporate the planned regional Bus Rapid Transit (BRT) study recommendations along with proposed intersection safety improvements and a planned commuter bikeway facility into the CO7 Corridor design. CDOT and the Segment B team are working closely together with the 95th Street and CO 7 intersection project. Although the 95th intersection project falls within the design area of Segment B, it is a distinct project separate from Segment B.

Image of CO 7 approaching the CO 42 / 95th Street intersection facing west.


Key Project Elements

Key project elements include:

  • Building upon previous planning and feasibility studies.
  • Advancing the design of Bus Rapid Transit (BRT) and regional commuter bikeway.
  • Linked improvements to complementary projects within local communities.
  • Transportation improvements are being designed to serve everyone, including commuters, seniors, youth, persons with disabilities, and under-resourced communities.

Image taken from sidewalk adjacent to CO 7 east of Westview Drive looking at the mountains. In Boulder County, Colorado.

CO 7 Segment B Project Schedule

  • Project Kickoff: March 2023
  • Data Collection: March through July 2023
  • Concept Refinement: July through October 2023
  • Feasibility Study: July through November 2023
  • 15% Design: December through June 2024
  • Public Meetings: August 2023 through March 2024
CO 7 Segment B Project Timeline November 2023
CO 7 Segment B Project Preliminary Design Timeline

Public Engagement & Collaboration

  • Public Meetings: August 2023 through March 2024

Critical Components

  • Equitably serving the range of potential users – commuters, seniors, young people, persons with disabilities, and under-resourced communities.
  • Bus Rapid Transit - Balancing the provision of service (locations) with the level of service (frequencies) to create an efficient and desirable network.
  • Offering an alternative to driving and reducing traffic congestion.
  • Provide a bicycle level of traffic stress (LTS) analysis to examine the level of comfort for bicyclists and ways to improve conditions for bicyclists.
  • Supporting a reduction in greenhouse gas emissions (GHG) and other environmental benefits.
  • Advance multimodal improvements by promoting transit supportive land development and incorporating multimodal infrastructure and access along the corridor
  • Address existing and immediately foreseeable operational and safety needs
  • Plan for the future by phasing in multimodal improvements that respond to anticipated corridor growth
  • Complement existing and planned infrastructure that benefits the multimodal system and addresses system deficiencies.
  • Leverage joint development opportunities
  • Provide equity across the corridor by distributing project advancements fairly across the corridor

While this project focuses on a segment of CO 7 located east of the City of Boulder (falling within Boulder County and a portion within the City of Lafayette), it is one piece of a greater vision to transform CO 7 between Boulder to Brighton. As members of the CO 7 Coalition, along with Boulder County and the City of Lafayette are working with CDOT and other member organizations along the corridor to implement this multimodal vision for the corridor. Once complete, CO 7 will collectively move more people, more efficiently from the foothills to the plains.

The CO 7 Segment B design project will follow the recommendations from earlier studies to improve streets, regional transit, pedestrian facilities, and create a commuter bikeway, resulting in an improved quality of life for residents, visitors, commuters, and businesses. It will provide safer options for all users, regardless of how you choose to get around. Once complete, CO 7 will collectively move more people, more efficiently from the plains to the foothills.

The Segment B project is funded by Boulder County in partnership with CDOT, the City of Lafayette, and other local municipalities, as part of the successful Transportation Improvements Program (TIP) application with the Denver Regional Council of Governments. The partnership is a joint effort with the CO 7 Coalition.