Polls are now closed for the Nov. 4, 2025, Coordinated Election. Learn how to view the unofficial results for Douglas County and the state of Colorado.
Polls are now closed for the Nov. 4, 2025, Coordinated Election. Learn how to view the unofficial results for Douglas County and the state of Colorado.
Completed
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Updated Aug. 20, 2025
Thank you for your patience! The US 85 widening project is complete. You’ve helped us navigate three years of construction and can now enjoy additional lanes and safety improvements on US 85 between Highlands Ranch Parkway and Dad Clark Gulch (north of County Line Road) – several months ahead of schedule.
As one of the busiest and fastest-growing corridors in Douglas County, these vital improvements to US 85 (Santa Fe Drive) were aimed at enhancing safety, reducing congestion, and supporting future growth along the corridor. Read more about the project’s completion.
For background information prior to construction, visit US85DouglasCounty.com
This project will improve safety, mobility, and traffic operations by widening (from four to six lanes) and reconstructing a segment of US 85 (South Santa Fe Drive) from Highlands Ranch Parkway, extending north of the C-470 Interchange to Dad Clark Gulch (which is located approximately 1,200 feet north of County Line Road). Major US 85 intersection improvements will occur at Highlands Ranch Parkway, Town Center Drive, Blakeland Drive, the C-470 Interchange ramps and at County Line Road. The project also includes the replacement and widening of the existing bridge that carries US 85 over C-470.
Multimodal improvements include bus stop enhancements, a new shared-use path for bicyclists and pedestrians on the east side of US 85, a below-grade crossing for the C-470 Trail at US 85, a below-grade crossing for the High Line Canal Trail at US 85, and a new pedestrian link from the Wolhurst community to the C-470 Trail.
The project also includes the addition of continuous auxiliary lanes, new asphalt paving, relocation of utilities, raised medians, new curb and gutter, and a new closed storm sewer system with water quality ponds.
Timeline: Fall 2022 to Fall 2025
Partial Continuous Flow Intersection (CFI) will be installed for the following traffic movements:
View a map of US 85 Interchange at the above 3 listed intersections.
Other projects along US 85 in Douglas County
Project completed. No major or minor impacts expected.
