Sierra Point is a small artificial peninsula that extends eastward into the San Francisco Bay from the eastern shore of the San Francisco Peninsula, located in Brisbane, San Mateo County, California (although the south part of the business park extends into South San Francisco). It lies entirely east of U.S. Route 101. There are several class A office buildings at Sierra Point including the Dakin Building and the former Hitachi building. The Brisbane Marina is on the eastern shore of Sierra Point. The San Francisco Bay Trail runs along the waterfront of the peninsula and continues south into the Oyster Point area of South San Francisco. History and characteristics Sierra Point encompasses an area of , reclaimed from San Francisco Bay by landfill behind dikes. are for the office park and are for the Brisbane Marina. It is one of two large commercial districts in Brisbane; the older Crocker Industrial Park north of the residential area of Brisbane was developed during the 1960s. The Sunset Scavenger Company let a contract to the Easley and Brassy Company, who constructed an earthen dike from 1965 to 1967 around the existing site perimeter, on the existing mud flat east of San Bruno Mountain. The area, then named the Sierra Point Solid Waste Disposal Site, was used as an unlined Class III landfill between 1965 and 1972, covered daily with soil taken from Candlestick Point. In total, were used for the disposal of an estimated of solid waste. The entire site was purchased by Sierra Point Development Company (SPDC) from Sunset Scavenger in 1975. SPDC donated approximately for a municipal marina to the City of Brisbane in 1980, in partial exchange for development rights to the site. After it was complete, the city would assume control of the marina and collect property taxes on the improved site. Development of the Sierra Point area was approved in 1979 and started in 1982. The San Francisco Regional Water Quality Control Board adopted Order 82-27 in June 1982 to provide landfill closure requirements; that was subsequently rescinded and superseded by Order 96-058 in 1996. SPDC subsequently sold the site to Sierra Point Associates Two (SPA2) in November 1983. By 1996, of the landfill site had been capped with a minimum of of clean soil and of compacted clay. In 2001, the elevation of Sierra Point was above sea level, with settlement expected to reduce the elevation to