Horner & Shifrin, Inc.


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The New I-64 Design/Build – Segment 1; St. Louis, MO
Missouri Department of Transportation, District 6

Municipal, Government and Public Works

Horner & Shifrin was responsible for Segment One of the $525-million New I-64 Design/Build Project in St. Louis, consisting of roadway and bridge design for a three-mile-long segment of I-64 from east of Clayton/Warson Road to west of Spoede Road. The first design/build project initiated by MoDOT, it is the largest transportation project undertaken in the state’s history. The entire project scope involved rebuilding 12 miles of interstate highway through St. Louis, Missouri, including complete replacement of 29 bridges highlighted by a new high-speed interchange at I-64 and I-170.

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