I-44 Bridges over City Streets

MoDOT, Bridge Division

Horner & Shifrin led the coordination among 6 design teams as well as MoDOT Bridge, District and Geotechnical engineers for the replacement and rehabilitation of I-44 bridges in St. Louis City. 


Horner & Shifrin led a team of consultants to complete bridge plans for I-44 bridges over city streets in the City of St. Louis, which included the structural design for the replacement of 6 bridges and rehabilitation of 6 bridges on I-44 over Kingshighway, Union Pacific Railroad, Vandeventer, Tower Grove, 39th St. and Thurman in St. Louis City.

The project included hydrodemolition and concrete overlay over Tower Grove, re-deck of the bridges over Union Pacific Railroad and superstructure replacement over Vandeventer; the other bridges were replaced.  Challenges included dealing with soft soil conditions at Kingshighway, 39th St and Thurman and I-44 grade restrictions at Thurman which required close coordination with MoDOT Geotechnical engineers.  Galvanized steel girders were used at Vandeventer and Thurman.



Project Scope



Site Size


St. Louis, Missouri

Year Completed


Innovation. Agility.
Reliability. Horner & Shifrin.