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.
St. Louis, Missouri