I-355 Bridge over Des Plaines River Valley


  Lemont, Illinois


  Illinois Tollway Authority


  Walsh Construction Company

  Construction Cost:    

  $125 Million

Project Description

JSE provided design-build engineering services on this centerpiece project of the 14 mile I-355 extension. The superstructure design had spans up to 170’ using prestressed 90” bulb tee girders, 216’ spans using post-tensioned spliced segmental 102” bulb tee girders and 270’ main spans using 120” haunched pier segments with 102” drop-in girders. The post-tensioned pier caps are supported on a single row of columns exceeding heights of 70’. The construction cost of the design provided by JSE beat the next closest design’s construction cost by $8 million.

This bridge was featured in the Spring 2008 issue of Aspire magazine and was on Road & Bridges top 10 list of best bridges in 2006. Additionally, this bridge received an Honor Award from ACEC.