Found some information on a Federal Contractor Website:
GOGA 222626 Rehabilitate Torpedo Wharf Phase I, Golden Gate National Recreation Area, San Fransico, California.
"This project is Phase I of a larger project that will rehabilitate the deteriorated superstructure (piles, pile caps and structural deck) and surface pavement and includes rehabilitating the existing fendering and bullrails; adding new safety railings and rescue ladders; and installing reinforcement and protective coating to the under deck of the trestle/approach/wharf for Torpedo Wharf, located at Crissy Field, Golden Gate National Recreation Area. The structure is of an historic nature.ifornia. The work of Phase I (this project) includes concrete underdeck rehabilitation to the deck and pile cabs between the shore and eighth abutment; removal of existing asphalt surface for the entire wharf; rehabilitation of the concrete top deck and curb for the entire wharf; replacement of the approach trestle construction joints; replacement of the wharf bullrail; installation of guardrailing and ladders; resurfacing of the deck of the entire wharf; and site restoration as necessary."
There was no date given for construction to begin or how long construction will take. Additional information about the work suggested that it may have to take place during the winter, and of course there would be potential delays due to weather.