Central 70

Central 70

Denver, Colorado

This design-build-operate-maintain-finance (DBOMF) project rebuilt a 10-mile stretch of Interstate-70, adding one new tolled express lane in each direction, removing the aging 54-year-old viaduct, lowering the interstate between Brighton and Colorado Boulevards, and placing a four-acre park over a portion of the lowered interstate. The design, submitted by Kiewit as a preferred alternate and selected by the client, will be constructed with a life expectancy of 75-100 years.

Central 70 is an iconic revitalization of a highway corridor in Denver, Colorado, that, to date, has exceeded its capacity, functionality and service life. The project scope includes constructing a 10-mile stretch of I-70 East, adding one new tolled express lane in each direction, removing the aging 54-year old viaduct, lowering the interstate between Brighton and Colorado boulevards and placing a 4-acre park over a portion of the lowered interstate. When completed, C70 will reduce congestion, improve safety and better
accommodate future growth along the vital I-70 transportation corridor.

By working with the general contractor to develop a unique payment curve and optimizing the utilization of external financing and milestone payments, Kiewit successfully eliminated the need for short-term financing which ultimately saved over $18 million for the client. The project received Community Impact of the Year Award from American Road & Transportation Builders Association (ARTBA) in 2019 and Gold Awards in the Best Road/Bridge/Tunnel Project category and the Best Financial Structure category at the P3 Awards in 2018.