Construction for Kanawha River Bridge, West Virginia


On June 17, 2009, workers cast the closure segment on the 760' main span of the Kanawha River Bridge, between Dunbar and South Charleston, West Virginia. With the main span closure, this is now the longest box girder span in the U.S. Of the total superstructure, three cantilevers remain to be completed, along with the bridge parapets, overlay, and roadway all due to be completed by October 2010.

The new bridge will carry I-64 eastbound traffic on an improved curved alignment as part of the widening of I‑64 in Kanawha County. Westbound traffic will remain on the existing steel plate girder bridge.

The new Kanawha River Bridge (Fig. 1) will have a total length of 2,975', including the 760' river span, 460' and 540' side spans and five additional approach spans, ranging from 144' to 295'. The 66'-8" wide deck will accommodate four lanes of traffic plus shoulders, all on a single cell box girder. The continuous girder has a varying depth of 16' to 38' at the main span and a constant 16' depth at the approaches. This low-cost design was selected over a steel alternative, saving $30 million and simplifying construction in the process. The final result is an elegant and distinct design that blends into its surroundings and adheres to a limited budget.

Project Details


T.Y. Lin International


West Virginia Department of Transportation


Brayman Construction Corporation

Construction Engineer:

FINLEY Engineering Group, Inc. Michael Baker Corporation

Construction Engineering Inspection:

West Virginia Department of Transportation

Form Travelers for Cast-in-Place Segments:


Formwork for Precast Segments:


Post-Tensioning Materials:


Stay Cables:



R.J. Watson Inc.

Expansion Joints:

Watson Bowman Acme - A BASF Company

Epoxy Supplier:

BASF Construction Chemicals, LLC

Prepackaged Grout:

BASF Construction Chemicals, LLC