Divisions of the Colorado Department of Transportation have approved the agency’s biggest contract ever today as part of a $1.3 billion effort to replace the crumbling Interstate 70 viaduct in north Denver and widen the highway between Interstate 25 and Chambers Road.

CDOT is entering a public-private partnership contract with a team of companies working under the name Kiewit Meridiam Partners, or KMP, hired for $811 million to design and build the rebuild and expand the 10-mile segment of highway, a project labeled "Central 70." KMP also will be paid over the following 30 years to operate, maintain and its help in financing the project.

The contract is up for a vote today by the board of CDOT’s Bridge Enterprise Fund, which is made up of the state agency's commissioners, and the separate board that oversees CDOT’s High Performance Transportation Enterprise.

Both boards approved the contract in unanimous votes Wednesday.

Read more about the contract specifics at the Denver Business Journal.