10260820 WEST FORK MOJAVE RIVER BELOW SILVERWOOD LAKE, NEAR HESPERIA, CA
LOCATION.-Lat 34°18'15", long 117°19'06", in SW 1/4 NE 1/4 sec.32, T.3 N., R.4 W., San Bernardino
County, Hydrologic Unit 18090208, San Bernardino National Forest, in control room under spillway at Cedar Springs
Dam, and 8.7 mi south of Hesperia.
DRAINAGE AREA.-34.0 mi2.
PERIOD OF RECORD.-October 1980 to September 1983, October 1995 to current year. Unpublished records for water
years 1973-95 available in files of the California Department of Water Resources.
GAGE.-Flowmeter on release valve and theoretical rating on two slide gates. Elevation of gage is 3,180 ft above
sea level, from topographic map. Prior to October 1983, at recording site 0.3 mi downstream, at different datum.
REMARKS.-Flow regulated by Silverwood Lake (station 10260790). Lake stores water received from the California
Aqueduct at Mojave Siphon Powerplant (station 10260780) until it is transferred to San Bernardino area through
Devil Canyon Powerplant (station 11063682). Las Flores Release from Aqueduct (station 10260822) delivers water to
vicinity of West Fork Mojave River. See schematic diagram of Mojave River Basin.
COOPERATION.-Records collected by California Department of Water Resources, under general supervision of the U.S.
Geological Survey, in connection with a Federal Energy Regulatory Commission project.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 2,290 ft3/s, Mar. 2, 1983, gage height, 7.51 ft,
site and datum then in use; no flow for most of every year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
2 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
3 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
4 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
5 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
6 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
7 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
8 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
9 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
10 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
11 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
12 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
13 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
14 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
15 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
16 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
17 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
18 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
19 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
20 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
21 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
22 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
23 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
24 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
25 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
26 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
27 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
28 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
29 .00 .00 .00 .00 --- .00 .00 .00 .00 .00 .00 .00
30 .00 .00 .00 .00 --- .00 .00 .00 .00 .00 .00 .00
31 .00 --- .00 .00 --- .00 --- .00 --- .00 .00 ---
TOTAL 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MEAN .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000
MAX .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
MIN .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
AC-FT .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
a 1810 1550 906 1550 552 1740 87 0 236 0 458 0
b 28740 10790 7320 14910 5250 27830 34330 35950 46050 62380 61870 57300
c 438 160 419 126 0 301 864 533 239 82 48 51
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1999, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN .051 .77 10.7 21.3 94.2 131 32.2 30.9 5.54 .76 2.14 .18
MAX .19 4.03 50.8 73.9 403 739 87.8 126 28.9 2.65 14.6 1.18
(WY) 1983 1983 1983 1997 1983 1983 1998 1998 1998 1997 1997 1983
MIN .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000
(WY) 1996 1996 1996 1999 1999 1999 1997 1997 1981 1996 1996 1996
SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1981 - 1999
ANNUAL TOTAL 13727.00
ANNUAL MEAN 37.6 27.2
HIGHEST ANNUAL MEAN 118 1983
LOWEST ANNUAL MEAN .000 1999
HIGHEST DAILY MEAN 935 Feb 24 1990 Mar 3
1983
LOWEST DAILY MEAN .00 Jan 1 .00 Oct 1 .00 Oct 1
1980
ANNUAL SEVEN-DAY MINIMUM .00 Jan 1 .00 Oct 1 .00 Oct 1
1980
INSTANTANEOUS PEAK FLOW 2290 Mar 2
1983
INSTANTANEOUS PEAK STAGE 7.51 Mar 2
1983
ANNUAL RUNOFF (AC-FT) 27230 19700
TOTAL FLOW (AC-FT) a 297500 8880
TOTAL FLOW (AC-FT) b 356900 392700
TOTAL FLOW (AC-FT) c 9040 3260
10 PERCENT EXCEEDS 100 .00 53
50 PERCENT EXCEEDS .00 .00 .00
90 PERCENT EXCEEDS .00 .00 .00
a Flow, in acre-feet, through Mojave Siphon Powerplant, provided by California Department of Water
Resources.
b Flow, in acre-feet, through Devil Canyon Powerplant, provided by California Department of Water
Resources.
c Flow, in acre-feet, through Las Flores Release, provided by California Department of Water Resources.
USGS Water Resources of California
USGS Headquarters |
Biology |
Geology |
Mapping |
Water