A marina is on the S shore just W of the highway bridges, and a small-boat basin is in Elliot Cove on the N side of the strait opposite Crockett.
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Six-mile-long Carquinez Strait connects San Pablo and Suisun Bays. For the first 3.5 miles it is a little less than 0.5 mile wide, and then widens to about 1 mile. It is deep throughout with the exception of a small stretch of flats on the N shore, and a small shoal area in the bight on the S shore near the E end.
Interstate Route 80 fixed highway bridges cross Carquinez Strait near its W entrance at Semple Point. The channel on each side of the center pier is 998 feet wide; the least clearance is 146 feet through the N span and 132 feet through the S span. Private sound signals are sounded at the bridge piers and racons are at the center of each span of the E bridge.
Power cables cross the strait 0.3 mile W of the highway bridges and 1.2 miles E of it; the minimum clearance is 179 feet.
Crockett, on the S shore just E of the highway bridges, is built around The California and Hawaiian Sugar Co. Refinery. The refinery’s wharf has a 2,715-foot face with 2,815 feet of berthing space with dolphins, and a deck height of 12 feet. A depth of 30 feet is alongside. Four cranes and a conveyor system serve the wharf, maximum unloading rate is 250 tons per hour each; water is available. The wharf is used for receipt and shipment of sugar products and the transfer of bulk liquid molasses; it is owned and operated by California and Hawaiian Sugar Co.
