I-70 Reconstruction (Super 70) Design-Build

The project included replacement of 75 lane miles of pavement and 28 bridge decks, as well as reconstructing I-70 over Sherman Drive and the CSX railroad, which had been an underpass, with the use of a 50-foot-tall temporary retaining wall along the median of I-70. The interstate was widened by eight feet on each side. Traffic was maintained on I-70 through the use of moveable barrier technology to maintain additional travel lanes in peak direction during rush hour periods. Plans for improvements to local routes, including modernization/improvement of 16 signalized intersections, were prepared to improve capacity on the local street network during the I-70 reconstruction. The project also involved new retaining wall design to eliminate the need for additional right-of-way. New highway signs, lighting, and ITS relocation were also part of this project.