I-25/Dry Creek Rd Interchange Corridor Study

Study Area, Purpose and Goals


Arapahoe County, in conjunction with the City of Centennial and the Southeast Public Improvement Metropolitan District, conducted the I-25/Dry Creek Road Interchange and Corridor Study in 2015-2017. The study area included Dry Creek Road from Yosemite Street to Easter Avenue, including the I-25 interchange. The purpose of the study was to consider short-term and long-term improvements to address peak period congestion along the corridor. Study goals were to develop a range of improvements to:
  • Improve regional access
  • Improve mobility and reliability of the system
  • Improve congestion and safety
  • Optimize existing infrastructure
  • Leverage past area transportation investments
  • Consider all modes of transportation

Corridor Vision


Over the next 25 years and beyond, the I-25/Dry Creek Road interchange and corridor between Yosemite Street and Easter Avenue will serve as an important facility for both local and regional travel. Dry Creek Road will provide an appropriate balance of improved traffic operations, multimodal mobility, and safety while maintaining local accessibility. Planned improvements will minimize impacts to existing neighborhoods, maintain the community identity, and match the neighborhood/mixed use surroundings.

Study Recommendations


Study recommendations are described in the Final Study Report and illustrated in these graphics.

Final Study Reports


Final Corridor Conditions Report
Final Study Report

Note: The above reports are large files so your download may take a while.

Stakeholder Involvement


Public Involvement included two general public meetings, meetings with individuals and small groups and presentations to groups such as homeowner’s associations and metropolitan districts.

Public Meeting #1 was held on February 18, 2016 at Good Shepherd Episcopal Church. At this meeting, existing conditions and year 2040 travel forecasts of the corridor area were shown, and an overview of the types of alternatives that may be considered were provided. Documents that were covered at the meeting, including graphics and handouts, can be found on the Public Meetings page.

Public Meeting #2 was held on Thursday, July 28th, 2016 at Good Shepherd Episcopal Church. At this meeting, results of two levels of alternatives screening and the draft study recommendations were presented. Documents that were covered at the meeting, including graphics and handouts, can be found on the Public Meetings page.

Agency Coordination occurred through Technical Advisory Committee (TAC) and Policy Advisory Committee (PAC) meetings and elected official briefings.
  • TAC: Eight meetings were held with staff from Arapahoe County, City of Centennial, Southeast Public Improvement Metropolitan District, Inverness Metropolitan District, Colorado Department of Transportation, Denver Regional Council of Governments, and Regional Transportation District
  • PAC: Three meetings were held with elected officials and representatives from Arapahoe County, City of Centennial, Southeast Public Improvement Metropolitan District, Inverness Metropolitan District, and Colorado Department of Transportation

Comments Received


Public Comments Map: Click on the PublicComment_Icon.pngicons on the map below to see public comments & questions

Contact Us


We appreciate your interest in the I-25/Dry Creek Road Interchange and Corridor Study project. Contact us with comments or questions about this study using the information below.

Arapahoe County Project Manager
Bryan Weimer, Arapahoe County Public Works
6924 S. Lima Street, Centennial, CO 80112
720-874-6500 | Email Bryan Weimer