County Line Trail Connections

  • Project typeTransportation
  • Project statusDesign and Environmental Clearance
  • StartJune 2023
  • CompletionSummer 2025
bike riders on the Highline Canal

The County Line Trail Connections project will improve safety and connectivity for pedestrians, and bicyclists along County Line Road and the High Line Canal Trail in the area between Southpark Terrace and Broadway. 

Project design and necessary environmental clearances are expected to be complete by mid-2024, with construction likely completed by summer 2025. Funding for design and construction was awarded to the city by the Denver Regional Council of Governments (DRCOG) through the Transportation Improvement Program (TIP). This project is being coordinated with Douglas County, the High Line Canal Conservancy, South Suburban Parks and Recreation, the Highlands Ranch Metro District, and Arapahoe County.

Planned Improvements

The improvements planned for this project include:

  • Building a shared use path for pedestrians and bicyclists along the south side of County Line Road between Broadway and the High Line Canal Trailhead.
  • Improving the intersections of Southpark Lane and Southpark Terrace with County Line Road to facilitate bike movements and make them more accessible to people with disabilities by improving to current ADA guidelines.
  • Improving the High Line Canal Trail between the High Line Canal Trailhead (just south of County Line Road) and the C-470/Centennial Trail.
  • Improving an old and unmaintained path that runs just east of the High Line Canal Trail and improving its intersection with the C-470/Centennial Trail.
  • Improving drainage and addressing maintenance issues in the area to the southwest of the High Line Canal Trailhead parking lot.

map of planned improvements

Anticipated Project Benefits

  • Improved safety for bicyclists, and pedestrians 
  • Increased accessibility for people with disabilities
  • Improved connectivity between area trails and roadways 
  • Enhanced recreational and multimodal travel opportunities in the area

Schedule Highlights

  • Summer 2023: Data collection (land survey, traffic counts, environmental resources, geotechnical and utility investigations)
  • Fall 2023 through Spring 2024: Environmental reports and clearances
  • Late Fall 2023 through Late 2023: Preliminary (30%) design
  • Winter 2023 through Summer 2024: Final design
  • Winter 2024 through Summer 2025: Construction

Public Engagement

Community members will be invited to view the preliminary (30%) design and provide input in Winter 2023/Spring 2024. 


County Line Road between the High Line Canal Trail and Broadway.

Contact details

Transportation Planner