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Suisun Bay (bottom), Carquinez Strait (with bridges crossing it), and San Pablo Bay (upper center), with Point Reyes in the background. Andrei Sarna-Wojcicki, a geologist emeritus of the US Geological Survey (USGS), estimates that the Carquinez Strait was likely formed about 640,000 to 700,000 years ago, while much of modern California was emerging from an ice age.
San Pablo Bay, shown with San Francisco Bay San Pablo Bay and the Carquinez Strait Panorama of San Pablo Bay from Wildcat Mountain near Sears Point in Sonoma County. San Pablo Bay is a tidal estuary that forms the northern extension of the San Francisco Bay in the East Bay and North Bay regions of the San Francisco Bay Area in northern California.
Prior to this, crossing the Carquinez Strait necessitated the use of ferries. The bridge cost $8 million to build (equivalent to $140.32 million in 2023). It was the first major crossing of the San Francisco Bay [2] and a significant technological achievement in its time. Upon its completion, the span became part of the Lincoln Highway.
Watercourses which feed into San Pablo Bay or the Carquinez Strait between Point San Pedro and the Benicia-Martinez Bridge, numbered west to east: Gallinas Creek (224018) South Fork Gallinas Creek (235006) Miller Creek (228730) Novato Creek (229802) Arroyo San Jose (218406) Bowman Canyon (219721) Petaluma River (253749) Black John Slough (219372)
Carquinez Strait and Suisun Bay. Carquinez Strait — part of the tidal estuary of the Sacramento–San Joaquin River Delta drain into San Francisco Bay, in the San Francisco Bay Area of California. The strait connects Suisun Bay in the delta with San Pablo Bay.
Suisun Bay (/ s ə ˈ s uː n / sə-SOON; Wintun for "where the west wind blows") is a shallow tidal estuary (a northeastern extension of the San Francisco Bay) in Northern California. It lies at the confluence of the Sacramento River and San Joaquin River, forming the entrance to the Sacramento–San Joaquin River Delta, an inverted river delta.
About 560,000 years ago, water breached the mountains, carving out the present-day Carquinez Strait and San Francisco Bay. The drainage of all the water through this narrow gap formed a bottleneck in the Central Valley's outflow; this constriction is essential to provoke the slowing of river current and the resulting sediment deposits that now ...
Carquinez Strait Light Station is an automatic light station located at Vallejo, California between Suisun Bay and San Pablo Bay. It was first placed into operation on January 15, 1910. The original structure, a 28-room light house weighing 150 tons, was used until abandoned by the Coast Guard in 1951.