Douglas County awards $28.6M construction contract for County Line Road improvement project

Douglas County officials have taken a significant step towards improving local infrastructure with the approval of a $28.6 million construction contract for the County Line Road Improvement Project. This initiative aims to widen the road from two lanes to four, enhancing safety and traffic flow between University Boulevard and Broadway, which borders Douglas and Arapahoe Counties.

During the Board of Douglas County Commissioners meeting on July 8, 2025, Benjamin Pierce from the Capital Improvements team presented the project, expressing pride in moving forward after years of planning. The project will not only widen the road but also introduce a new traffic signal at Clarkson Street and replace existing signals to improve maintenance and longevity.

The construction is set to begin on September 2, 2025, with a projected completion date of September 2, 2027. However, residents should prepare for significant disruptions, as County Line Road will be fully closed for up to 100 days during the embankment construction, along with three additional 72-hour closures for critical storm sewer installations.

Funding for the project comes from a mix of federal and local sources, including approximately $12 million from Douglas County, $4.5 million from the City of Centennial, and $2 million from the City of Littleton. The project is expected to enhance safety and reduce traffic congestion, addressing long-standing community concerns.

In addition to the construction details, the county plans to implement a robust public engagement strategy to keep residents informed about the project's progress and any disruptions. This includes regular updates, an open house before the full closure, and a dedicated public information manager on-site to address community inquiries.

As the project moves forward, officials are optimistic about its potential to improve the daily commute for residents and enhance the overall safety of the area. The collaboration among multiple jurisdictions highlights a commitment to addressing infrastructure needs in Douglas County and its neighboring communities.