The Aerotropolis Regional Transportation Authority and contract partner, Ames Construction, began construction of the I-70 Aerotropolis Parkway Interchange in Adams County in mid-August 2025. The project is anticipated to be complete by November 2026.

Part of ARTA’s planned regional transportation infrastructure improvements across the district, the purpose of the project is to provide much-needed access to developments from Aurora and Adams County, and to improve connectivity to Denver International Airport and the adjacent area served by the Aerotropolis Regional Transportation Authority.

Work includes realigning the south portion of East Colfax Avenue/I-70 Frontage Road and adding drainage ponds, building on and off ramps and a new bridge spanning I-70, and constructing roundabouts on the north and south ends of the interchange that will eventually tie into future roadways.

Upcoming Travel Impacts

From 6 p.m. Tuesday, Aug. 11, to 6 a.m. Wednesday, Aug. 12, there is a scheduled full overnight closure of both directions of Interstate 70 at the new interchange, with a backup closure of eastbound I-70 overnight Wednesday, if needed, in order for the pouring of the deck of the new interchange bridge. Traffic will be detoured off I-70 to the newly built off- and on-ramps at the interchange to bypass the closures. Uniformed traffic control personnel will be present to direct traffic and maintain safety. Delays can be expected and alternate routes are strongly advised. The closures are necessary to ensure the safety of the traveling public and the structural integrity of the poured deck surface. 

Visit the ARTA website for schedule and working hours and ongoing traffic impacts.

Project information also is posted on the Colorado Department of Transportation's webpage.

For questions, call the project hotline at 720.388.2660 or email [email protected].