The California Aqueuct is a 444 mile (715 km)-long aqueduct in the United States that carries water from Northern California to Southern California. A typical section has a concrete-lined channel 40 feet (12 m) wide at the base and an average water depth of about 30 feet (9 m). The widest section of the aqueduct is 110 feet (33.5 m) and the deepest is 32.8 feet (10 m).channel capacity is 13,100 ft³/s (371 m³/s) and the largest pumping plant capacity (Dos Amigos) is 15,450 ft³/s (437 m³/s).