Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
10262500 Mojave River at Barstow, CA
LOCATION - Lat 34°54'25", long 117°01'19" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.31, T.10 N., R.1 W., San Bernardino County, CA, Hydrologic Unit 18090208, on left bank, 75 ft upstream from bridge on 1st Avenue (formerly U.S. Highway 91), at Barstow.
DRAINAGE AREA - 1,290 mi².
REVISIONS HISTORY - WSP 1564: 1932. WDR CA-76-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1930 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2,088.89 ft above NAVD of 1988. Prior to Oct. 31, 2005, at same site at datum 3 ft lower.
REMARKS - Flow regulated by Mojave River Forks Reservoir, capacity, 89,700 acre-ft, since 1971, 60 mi upstream; Silverwood Lake, capacity, 74,970 acre-ft, since 1972; and Lake Arrowhead, capacity, 48,000 acre-ft, since 1922. Some water is imported into basin. Diversions and pumping for irrigation of about 15,000 acres upstream from station. Southern California Water Company releases water from Crook Plant Pumping Station into the river 600 ft upstream of the gage at times in some years. See schematic diagram of Mojave River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 64,300 ft³/s, Mar. 3, 1938, gage height, 8.60 ft, at datum then in use, on basis of slope-area measurement of peak flow; no flow for all or most of each year.
