Project Overview
Washington Division led a joint venture, MKK Constructors on Segment IV of E-470, the remaining 12.5-mile, four-lane, controlled-access toll road that skirts the northern edge of the Denver metropolitan area.
The general roadway alignment of Segment IV traverses rolling high prairie terrain and farm ground irrigated by a series of canals and ditches. The roadway skirts several rural housing developments and crosses various streets, country roads, and the major transportation arteries of I-76, US 85, and the Union Pacific Railroad. Wetlands replacement was also included in the project scope.
Washington Division also performed the design-build contract for Segments II and III. Under a separate O&M contract, we operated Segment I of the toll way from 1992 to 1997. With the completion of Segment IV, the entire toll way is in service from I-25 in the north, around the eastern edge of Denver, and back to I-25 in the south, providing motorists with improved access to fast-growing suburban areas and the Denver International Airport. I-25 runs north and south through the middle of Denver.
Highlights & Accomplishments
Segment IV includes:
- A directional interchange with I-25.
- Seven interchanges.
- 43 bridges.
- One mainline and eight ramp toll plazas.
- Over 100 utility relocations.
- 42 acres of wetlands creation and mitigation.
- 415,000 tons of asphalt.
- 233,000 square yards of concrete paving.
- 10,600,000 cubic yards of earthwork.
- State-of-the-art toll collection equipment.