I-70 Interchange Modifications at US27

I-70 Interchange Modifications at US27


Indiana Department of Transportation (INDOT), Richmond, IN

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Project Description:  The US 27 over I-70 bridge is a two-span continuous composite steel plate girder structure with a total length of 182 feet.  It consists of a complex geometry and design with access ramps tying in at each corner of this single point interchange.

This interchange was designed to increase traffic flow by reducing the number of traffic signals to efficiently move traffic to and from the ramps and along US 27 mainline.  Large “edge girder” members were designed with connections to multiple members which carry the forces and moments to the large splice plates which rest on pot bearing s located on either side of the center pier.  More than 430 tons of structural steel and over 2000 cubic yards of concrete were used for this structure.  Curved, open window, decorative bridge railing sits atop the bridge deck, and tinted ashlar block architectural treatment accent the pier face and retaining walls below.

Approximate Project Cost:  $2,700,000

Breadth of Services Provided:  Survey, Environmental Services, and Bridge Design

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