The Alabama/Vining Street Bridge provides a safe crossing for users of walking trails running north and south of Alabama Street in the City of Bellingham. The aesthetically pleasing winged-box girder section was selected to blend into existing residential areas.

This unique cross-section combines several features into a monolithically cast piece. The stiffness of the superstructure is provided by a 28" deep x 4'-0" wide trapezoidal cell element. The 11' wide walking surface is formed with 6" thick "wing" elements extending 3'-6" beyond each side of the trapezoid. Finally, the cross-section integrates a 6" x 6" curb element on each side for attachment of guardrails.

This project is an excellent example of how a precast system substantially reduces above-ground construction time. The superstructure, deck, and final surface textures were completed at the plant, leaving only erection, closure pours, and hardware installation for the contractor at the jobsite.

Products

Prestressed Winged-Box Girders - 5 @ 65 feet, 3 @ 36 feet

Credits