Changes approved for County Line Road

Construction is set to take two years and begin in 2023


Douglas County commissioners took the first steps in a project to reconstruct a section of County Line Road along the border between Highlands Ranch and the City of Centennial during a Jan. 26 meeting.

Construction of this section, stretching from Broadway to University Boulevard, is expected to cost $20 million and to be finished in 2025. 

The design for the project, which will cost about $880,000, was unanimously approved by commissioners during the meeting. That phase is planned to be mostly completed by fall of this year.

“I, like a lot of people, use that stretch,” said Commissioner Lora Thomas during the meeting. “I am looking forward to people not trying to cut me off and whip in front of me and cause crashes in there. This is going to be a great safety project.”

The reconstruction and widening of the road has several goals, including adding roadway capacity, improving safety and drainage on the road, adding sidewalks and traffic lights and mitigating roadway noise for nearby residents, according to a presentation from county staff in the meeting.

Funding for the project will be split between several entities, with the majority of funding, $10 million, coming from the Denver Regional Council of Governments. The City of Centennial and Douglas County will each contribute $4.5 million and the City of Littleton will put in $1 million. The west end of the project is in the City of Littleton. 

The two-year construction project is planned to begin in early 2023. 

One portion of sidewalk will be added along the entire north side of the project, in Arapahoe County. Another portion of sidewalk will be added on the south side of the road from Clarkson Street to University Boulevard in Douglas County.

A new traffic light will be added at the Clarkson Street intersection beginning in summer of 2021. 

In the same meeting, commissioners approved design costs for construction at the Havana Street and Meridian Boulevard intersection in Lone Tree. This project will cost $8 million and is planned to begin in 2022.

They also approved design costs for changes at Bayou Gulch Road south of Parker from Pradera Parkway to Scott Avenue. Construction on the project, which will cost $3.5 million, will begin in early 2022.


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