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Project Overview

For many years Douglas County and the Colorado Department of Transportation (CDOT) have been making improvements to the US 85 Corridor based on the 2002 South I-25/US 85 Environmental Impact Statement (EIS) and Revised Record of Decision (ROD). As additional residential and commercial growth occurs in the northwest portion of the county, further studies were needed to identify what transportation improvements are necessary to support the development. Douglas County secured additional funds to continue this work and sponsored two important studies of US 85. The two separate studies are closely coordinated at each step in the process to allow citizen and stakeholder input. Ideally, these efforts assist the County and other agencies in identifying issues of importance in order to implement the highest-priority near-term improvements as soon as possible.

  • The PEL Study recommends improvements from approximately State Highway 67 (SH 67) in Sedalia to ½ mile north of C-470.
  • The Highlands Ranch Parkway to C-470 Project updates the 2002 ROD to reanalyze impacts and began design of recommended improvements for US 85 from Highlands Ranch Parkway to C-470.

Project Area Map