I-25/Arapahoe Road Interchange Reconstruction Project Moving Forward

This project consists of design and replacement of the existing I-25 bridge over Arapahoe Road, and other improvements to the interchange that will reduce congestion and improve traffic operations and safety.

This interchange reconstruction project will implement the Improved Partial Cloverleaf interchange recommendation from the Environmental Assessment completed in 2013.

“After many years of study, CDOT is very excited to begin the design work and construct the interchange improvements,” said Telecia McCline, Project Engineer with CDOT.  “The interim improvements to add a through lane outside the barrier helped traffic flow, but travelers will see much greater operational and safety benefits throughout the interchange complex from the ultimate configuration.”

CDOT has contracted with the David Evans and Associates, Inc./Hartwig & Associates team to complete the project design. A general contractor will join this team in May 2014 to provide constructability and phasing input to CDOT during design.

Prior to preliminary design beginning this summer, field work will be completed to gather updated, detailed data. This will include traffic counts, survey, geotechnical borings and utility locates. Some night-time lane closures will occur during the next few weeks, with minimal traffic disruption.

Construction is anticipated to begin in early 2016 and be completed in 2017.

CDOT’s Responsible Acceleration of Maintenance and Partnerships (RAMP) funding program, Federal and local entities are all providing funding for this project. RAMP funding is estimated to be $50.4 million, with local entities providing matching funds for a total of $68 million for construction. Arapahoe County, the City of Centennial, the City of Greenwood Village and the Southeast Public Improvement Metropolitan District will provide the local matching funds.

For details of the project background and planned improvements, visit: www.coloradodot.info/projects/I25-Arapahoe

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