Pacifica Pier is a fishing pier in Pacifica, in western San Mateo County, California. The L shaped pier spans out into the Pacific Ocean for a quarter mile from the City of Pacifica. Its official name is the Rev. Herschell Harkins Memorial Pacifica Pier.
The quarter mile pier was built in 1973 as part of the city of Pacifica's sewer system. It carries a 28-inch (710 mm) pipe that continues one quarter mile offshore through which sewage was pumped into the Pacific Ocean. This ended with the creation of a new water treatment facility in 2004.
The pier has been closed on occasion for both repairs (1993) and during high surf.
Since the pier was no longer being used to pump wastewater into the Pacific Ocean, its primary purpose has been for fishing. The pier is famous for salmon runs where hundreds of salmon are caught in a single Day. When this occurs there is a frenzy of activity where every available space is used to catch fish and hundreds of anglers are fishing shoulder to shoulder.