KanawhaKanawha 2

Kanawha River Bridge

Location: Charleston, WV
Owner: WV Department of Highways, District 1
General Contractor: Brayman Construction Corp.
Value: $83M
Completion Date: September 2010

The innovative Kanawha River Bridge is a record-setting, low cost, durable and aesthetically pleasing segmental box girder structure located in Kanawha County, WV.

Built by Brayman as part of the I-64 Widening Project, the eight-span, four lane bridge carries I-64 eastbound traffic over the Kanawha River. Overall bridge length is 2,975’, including a record 760’ main span and approach spans measuring from 144’ to 540’.

The structure is supported by two integral river piers and five expansion approach piers. Piers are founded on 36ea, 72” diameter caissons, drilled to lengths of 60’. Cofferdams were designed to aid
construction of the two piers on the river’s edge. Brayman utilized Value Engineering practices to modify the foundation designs by substituting driven pile in lieu of caissons at Abutment 2.

Brayman successfully installed bonded strand post-tensioning systems and bonded high strength bar post-tensioning systems. Overall, the project required 30,000cy of concrete and over 8,000,000lb of
reinforcing steel.

Site constraints, such as existing residential and commercial properties, three local roads, a railroad track, and the Kanawha River waterway traffic, were addressed by utilizing long span balanced
cantilever construction methods. The superstructure was built overhead with two pairs of form travelers supporting the cast-in-place segments thus resulting in minimal impact to the public. In addition, construction was completed ahead of schedule.

#1 Bridge in North America by Roads & Bridges Magazine

ASBI Bridge Award of Excellence