San Francisco Bay Trail
The San Francisco Bay Trail is a bicycle and pedestrian trail that when finished will allow continuous travel around the shoreline of San Francisco Bay. As of 2020, of the trail have been completed. When finished, the trail will be over of paved and gravel paths, bike lanes, and sidewalks, linking 47 cities across nine counties and crossing seven toll bridges. It is a project of the Association of Bay Area Governments and the Metropolitan Transportation Commission, in collaboration with other agencies, private companies, non-profit organizations, and advocacy groups.
The trail is intended to provide recreation for hikers and bicyclists, viewpoints for wildlife, space for environmental education, and corridors for bicycle transportation as well as access to historic, natural and cultural sites, including over 130 parks.
Route
The Bay Trail is an interconnected trail system that links parks, open spaces, points of interest, and communities on or near the bay shoreline. It will not only encircle the Bay but will also provide access inland to open spaces and preserves, streams, and the Bay Area Ridge Trail, which forms the second of two concentric rings around the bay.Sections of the Bay Trail exist in all nine Bay Area counties. The longest continuous segments include primarily on gravel levees between East Palo Alto and San Jose in Santa Clara County; in San Mateo County between Millbrae and San Carlos; in central Alameda County from San Leandro to Hayward; and along the shoreline and on city streets through Richmond in Contra Costa County. The northernmost trail section passes through San Pablo Bay National Wildlife Refuge.
Protected bicycle and pedestrian lanes exist on six Bay Area toll bridges: Golden Gate Bridge, Carquinez Bridge, Benicia-Martinez Bridge, Dumbarton Bridge, the Richmond-San Rafael Bridge, and the Bay Bridge. In the last case, the path cannot be used to cross the bay, as the western span lacks a bike path. The San Mateo–Hayward Bridge, the longest bridge in California, currently lacks a pedestrian or bike path entirely.