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Wharf J-9 Sea Wall and Wharf Replacement

LOCATION:

San Francisco, CA

CLIENT:

Port of San Francisco

CONSTRUCTION COST: $15 M

SCALE:

450 ft long sea wall and 5,000 sf new wharf

CONSTRUCTION TYPE:

Concrete wharf over steel piles with steel sheet pile wass

ROLE:

Patrick Ryan Principal-in-Charge

Maureen Joyce Project Manager

The existing timber sea wall and wharf at the Port of San Francisco Wharf J-9 are severely deteriorated, and in a design level earthquake, the soil behind the sea wall is expected to liquefy and cause significant lateral displacement of the existing sea wall.  The project involved replacing the existing sea wall with a steel sheet pile wall, and replacing the timber wharf with a new concrete wharf over steel pipe piles. 

 

RJSD performed a static non-linear seismic analysis of the new sea wall and wharf using non-linear p-y soil springs along the height of the sea wall and new piles.  We coordinated with the Port to locate the alignment of the new sea wall on the landside of the existing sea wall to the greatest extent possible to minimize construction costs, and phased the sea wall installation at the adjacent road to allow for traffic access.