STREAM GAGING STATION INFORMATION
LOS ANGELES RIVER
above Arroyo Seco
STATION NO. F57C-R
RECORDER: Continuous water stage.
METHOD OF MEASUREMENT: Wading
DRAINAGE AREA: 511.0 square miles.
LOCATION: 800 feet above the confluence of the Arroyo Seco with the Los Angeles River, Los Angeles.
REGULATION: Partially regulated by Sepulveda, Pacoima, Big Tujunga, and Hansen Dams; and by several spreading grounds, reservoirs, and debris basins.
CHANNEL: Concrete, rectangular in section, with a trapezoidal low-flow channel.
CONTROL: Channel forms control.
LENGTH OF RECORD: At Station F57-R, December 5, 1929 to May 26, 1938; at Station F57B-R, April 5, 1939 to December 8, 1939; at Station F57C-R, December 8, 1939 to date.
REMARKS: Subject to diversions from Big Tujunga Creek, and other diversions for domestic and irrigation uses.