Poplar Street Bridge Slide

摘要

The Poplar Street Bridge is 50 year old five span (300'-500'-600'-500'-265') 2165' long structure which carries I-64,I-55 and I-70 over the Mississippi River in downtown St. Louis and connects Missouri and Illinois. The bridge has twin Eastbound and Westbound superstructures consisting of two variable depth steel box girders (25' max. depth) with an orthotropic steel deck on a shared substructure. The Missouri Department of Transportation hired HDR to provide the following improvements to the Poplar Street Bridge: 1) Increase lane capacity of the EB Bridge from 4 to 5 lanes in conjunction with improving interchange ramp structures on the Missouri side, 2) provide a new and improved riding surface and 3) Rehabilitate the structure.