Updated Feb. 17, 2026:
County Line Operational Improvements – East Side (Arapahoe County/Douglas County)
Douglas County previously prepared 60% complete plans that reconfigured the two intersections into a single intersection, but this concept was abandoned because it would be problematic to implement, and it was estimated to cost over $10 million to construct.
The current revised scaled back design alternative moving forward will focus on implementing multi-modal improvements, replacing the existing traffic signals, increasing storage for some of the turn lanes, repairing the poor pavement areas, and adding new sign structures.
The revised design will maintain the current configurations at both intersections. The project is estimated to cost $4.5 million to redesign and construct. Currently, the redesign is substantially complete, and utility relocation and construction are estimated to begin in the summer of 2026. Project potential funding partners will likely include Arapahoe County, Douglas County, Inverness Metropolitan Improvement District (IMID), and Southeast Public Improvement Metropolitan District (SPIMD). Arapahoe County staff will be managing this project during the construction phase.

