Interstate 70 Manchester Bridge
Kansas City, Missouri
Design-build team uses extensive highway and traffic management experience to keep three lanes open in each direction during construction
● Existing bridges built in early 1960s
● New lanes built outside existing bridges keep traffic moving
● Expands available lanes, reduces maintenance requirements
HNTB, teamed with Clarkson Construction Co., to construct two four-lane bridges on Interstate 70 over Manchester Trafficway, the Blue River and an adjacent rail yard.
Built in the early 1960s, the original bridges were among the earliest pieces of Interstate construction in western Missouri. They were a major link between downtown Kansas City, Missouri, and its eastern suburbs, as well as the Truman Sports Complex. To keep traffic flowing, three lanes in each direction needed to remain open during construction.
To meet that requirement, the team built three lanes of the new bridges just outside the two existing structures and just inside the right-of-way. When the new lanes were complete, traffic was shifted on to them, allowing the original bridges to be demolished. A fourth lane was then added to complete the new spans.