Chelsea Wetlands is a riparian marsh on lower Pinole Creek and a tidal wetland at its mouth on San Pablo Bay, in Contra Costa County, northern California.It is located within the city of Hercules, in the East Bay region of the San Francisco Bay Area.
Originally part of a much larger tidal marsh complex that fringed San Pablo Bay, including along the shoreline of West Contra Costa County. The Chelsea wetlands are the remaining 12 acres (4.9 ha) of undeveloped coastal marsh within Hercules. The seasonal marsh was diked off and a large portion of it filled sometime in the late 19th/early 20th century during the development of the Pinole/Hercules area. It has been further degraded by the dumping of soil from more recent surrounding construction projects.
The Chelsea Wetlands remains crucial habitat to wildlife including endangered species such as the California clapper rail and salt marsh common yellowthroat.It was once home to egrets.
Hercules was seeking to restore funds for habitat restoration of lower Pinole Creek in 2012, to protect against flooding into the adjacent city neighborhood, and to restore tidal marsh, floodplain storage, and floodplain habitat functions — to support the flora and fauna native to the Chelsea Wetlands in the riparian zone and the bottom land tidal flood plain.
The San Francisco Bay Trail goes through the area along San Pablo Bay.
Point Pinole Regional Shoreline is a regional park on the shores of the San Pablo Bay, California, in the United States. It is approximately 2,315 acres (9.37 km2) in area, and is operated by the East Bay Regional Park District. It includes the Dotson Family Marsh and the Point Pinole Lagoon and hosts the North Richmond Shoreline Festival.
San Pablo Bay is a tidal estuary that forms the northern extension of San Francisco Bay in the East Bay and North Bay regions of the San Francisco Bay Area in northern California.
The Yolo Bypass is one of the two flood bypasses in California's Sacramento Valley located in Yolo and Solano Counties. Through a system of weirs, the bypass diverts floodwaters from the Sacramento River away from the state's capital city of Sacramento and other nearby riverside communities.
Sonoma Creek is a 33.4-mile-long (53.8 km) stream in northern California. It is one of two principal drainages of southern Sonoma County, California, with headwaters rising in the rugged hills of Sugarloaf Ridge State Park and discharging to San Pablo Bay, the northern arm of San Francisco Bay. The watershed drained by Sonoma Creek is roughly equivalent to the wine region of Sonoma Valley, an area of about 170 square miles (440 km2). The State of California has designated the Sonoma Creek watershed as a “Critical Coastal Water Resource”. To the east of this generally rectangular watershed is the Napa River watershed, and to the west are the Petaluma River and Tolay Creek watersheds.
Cerrito Creek is one of the principal watercourses running out of the Berkeley Hills into San Francisco Bay in northern California. It is significant for its use as a boundary demarcation historically, as well as presently. In the early 19th century, it separated the vast Rancho San Antonio to the south from the Castro family's Rancho San Pablo to the north. Today, it marks part of the boundary between Alameda County and Contra Costa County. The main stem, running through a deep canyon that separates Berkeley from Kensington, is joined below San Pablo Avenue by a fan of tributaries, their lower reaches mostly in culverts. The largest of these is Middle or Blackberry Creek, a southern branch.
Wildcat Creek is a 13.4-mile-long (21.6 km) creek which flows through Wildcat Canyon situated between the Berkeley Hills and the San Pablo Ridge, emptying into San Pablo Bay in Contra Costa County, northern California.
Rheem Creek is a 3-mile (5 km) long urban stream in western Contra Costa County, California which empties into San Pablo Bay south of Point Pinole. The creek rises from Rolling Hills Cemetery and passes through Rollingwood, the campus of Contra Costa Community College, and the city of San Pablo, California. Near this area at the end of the creek a business park is being built and there is some concern on how the creek may be impacted by the construction. The waterway is named after early local figure William Rheem.
San Pablo Creek is an 18.7-mile-long (30.1 km) creek in Contra Costa County, California, United States, which drains the canyon or valley between the San Pablo Ridge and the Sobrante Ridge, parts of the Pacific Coast Ranges east of San Francisco Bay.
The Hydrography of the San Francisco Bay Area is a complex network of watersheds, marshes, rivers, creeks, reservoirs, and bays predominantly draining into the San Francisco Bay and Pacific Ocean.
Refugio Creek is a 4.4-mile-long (7.1 km) watercourse running through the Refugio Valley from the hills of western Contra Costa County, California.
Stege Marsh, also known as the South Richmond Marshes, is a tidal marshland wetlands area in Richmond, California in western Contra Costa County.
Rodeo Creek is an 8.3-mile-long (13.4 km) intermittent stream in western Contra Costa County, California running through the town of Rodeo to San Pablo Bay.
Pinole Creek is a stream in western Contra Costa County, in the East Bay region of the San Francisco Bay Area, California.
Alhambra Creek is a stream in Contra Costa County, in the East Bay region of the San Francisco Bay Area in northern California.
San Pablo Bay National Wildlife Refuge is a 13,190-acre (53.4 km2) National Wildlife Refuge in California established in 1970. It extends along the northern shore of San Pablo Bay, from the mouth of the Petaluma River, to Tolay Creek, Sonoma Creek, and ending at Mare Island.
The Dotson Family Marsh, formerly Breuner Marsh, is a 238-acre regional park on San Pablo Bay in the East San Francisco Bay Area city of Richmond, California, In 2009 the East Bay Regional Parks District acquired the Breuner Marsh site, adding it to Point Pinole Regional Shoreline. A habitat restoration plan for 60 acres of wetlands and 90 acres of California coastal prairie was subsequently approved.
Grayson Creek is a stream in Contra Costa County in northern California that flows northeasterly 7.4 miles (11.9 km) from its origin in Briones Regional Park to Pacheco Slough four miles east of Martinez. Pacheco Slough, in turn, connects to Suisun Bay. The Grayson Creek subwatershed is part of the Walnut Creek watershed and includes the cities of Pleasant Hill and Pacheco, California.
Rush Creek is a stream in eastern Marin County, California, United States. It originates on the north edge of Novato, California and flows 1.5 miles (2.4 km) northeasterly through wetlands into Black John Slough and then the Petaluma River. The name is associated with Peter Rush who bought land near Novato in 1862.
Winter Island is a 453-acre (183 ha) island in Suisun Bay, in the western Sacramento-San Joaquin River Delta. It is north of Pittsburg, separated from Browns Island to the west by a slough. It was private property, and contained one house. It is used as a duck hunting area, a wetland, and a dredging disposal area. In 2016 Winter Island was purchased by the California Department of Water Resources in order to restore the island as a tidal marsh. Winter Island is part of Contra Costa County, and managed by Reclamation District 2122. It is shown, labeled "Ruckels Island", on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold and an 1854 map of the area by Henry Lange.
The San Francisco Bay Salt Ponds are an approximately 16,500-acre (6,700 ha) part of the San Francisco Bay that have been used as salt evaporation ponds since the California Gold Rush era. Most of the ponds were once wetlands in the cities of Redwood City, Newark, Hayward and other parts of the bay.