In 2007, the West Virginia Division of Highways embarked upon an $82.8 million contract to construct the new I-64 Kanawha River Bridge in South Charleston, West Virginia.
The concrete segmental bridge is being constructed by the cast-in-place balanced cantilever method. The project also includes seven piers - five on land and two on the edge of the river, as well as eight spans combined for a total length of 2,950 feet. The 65.5 -foot wide deck will accommodate four lanes of traffic and two shoulders on a single-cell box girder. Upon completion, the bridge's 760-foot main span will be the longest concrete box girder span in the US.
VSL was selected to supply the post-tensioning elements of this project. In addition to supplying over 130,000 lbs. of 1 3/8" diameter post-tensioning bars, VSL is furnishing approximately 1,085 tons of 0.6" diameter post-tensioning steel. To meet the enhanced durability requirements of the project, VSL's PT-PLUSTM plastic ducts with the ECI 6-31, 6-22, 6-19, 6-12, and SA 6-4 systems are being used.
Work began in the spring of 2007. Segmental superstructure started in February 2008 and completion is expected by 2010.