The West Mission Bay Drive Bridge traverses the main channel of Mission Bay between Dana Point and Pacific Beach and is a primary link between the communities of Point Loma, Pacific Beach, and Ocean Beach in the City of San Diego. The structure is a 1200 foot long precast concrete girder bridge built on eight caps, supported by 16 columns, with two columns per bent. Each column is supported by an individual footing on four batter pile per footing.
With Traylor Brothers Inc as the primary contractor, this project is a jointly funded seismic retrofit of the existing structure by the California Department of Transportation (Caltrans), the Federal Highway Administration (FHWA), and the City of San Diego. The retrofit involved the addition of thirty-two 48" Cast-In-Steel-Shell (CISS) pile foundations - four at each bent, driven to an approximate tip elevation of minus 90-feet. The two independent footings at each bent, incorporating the four new piles at each bent, were tied together in a monolithic footing encapsulated with precast concrete skirt panels for fendering.
Traylor Pacific enlisted the services of San Diego Precast to provide the precast skirt panels for this project. San Diego Precast provided all 208 precast skirt panels to the project, 26 at each footing. The product was delivered on schedule and within specifications. Traylor Pacific, Caltrans and the City of San Diego are extremely pleased with the overall quality and consistency of the product provided by San Diego Precast.
Client: City of San Diego Capital Projects Department.