Des Plaines River Valley Bridge on I-355 (IL)
Project Type: Design-Build
Location: Lemont, Illinois
Owner: Illinois Tollway Authority
Client: Walsh Construction Co.
Construction Cost: $125 million
Completion Date: 11/2007
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.
Total Length: 2 structures at 6,600’each
Number of spans: 35 spans divided into 8 units
Main Span: 270’
ACEC Indiana Awards of Engineering Excellence (Honor), 2009
Deep Spliced Girders Save Tollway $8 Million - ASPIRE, Spring 2008
Illinois Tollway - ASPIRE, Spring 2014