10261500 MOJAVE RIVER AT LOWER NARROWS, NEAR VICTORVILLE, CA
LOCATION.-Lat 34°34'23", long 117°19'11", in SW 1/4 SE 1/4 sec.29, T.6 N., R.4 W., San Bernardino County, Hydrologic Unit 18090208, on
left bank 650 ft upstream from bridge on county road (formerly U.S. Highway 66), 0.6 mi downstream from Atchison, Topeka, & Santa Fe
Railway bridge, and 3 mi northwest of Victorville.
DRAINAGE AREA.-513 mi2.
PERIOD OF RECORD.-February 1899 to September 1906, October 1930 to current year. Monthly discharge only for January to September 1906,
October, November 1930, published in WSP 1314. Prior to October 1936, published as "at Victorville" and as "near Victorville" in 1937.
CHEMICAL DATA: Specific conductance 1975-81.
WATER TEMPERATURE: Water years 1962-80.
REVISED RECORDS.-WSP 1927: Drainage area.
GAGE.-Water-stage recorder and crest-stage gage. Datum of gage is 2,643.01 ft above sea level. See WSP 1314 for history of gage changes prior
to Mar. 28, 1938. Mar. 28, 1938, to Apr. 14, 1966, at site 350 ft upstream at datum 5.00 ft higher; Apr. 15, 1966, to July 17, 1969, at site 350 ft
upstream at datum 3.00 ft higher.
REMARKS.-Records fair. Flow regulated by Mojave River Forks Reservoir, capacity 89,700 acre-ft, since 1971, 17.8 mi upstream, Silverwood
Lake, capacity 78,000 acre-ft, since 1971, and Lake Arrowhead, capacity, 48,000 acre-ft, since 1922. Some water is imported into basin.
Diversions and pumping for irrigation and for Mojave State Fish Hatchery upstream from station.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 70,600 ft3/s, Mar. 2, 1938, gage height, 23.7 ft, present datum, from rating curve
extended above 10,000 ft3/s on basis of slope-area measurement of peak flow; no flow Sept. 21-23, 1995.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1.7 8.1 14 19 24 21 15 9.1 4.2 2.3 1.6 1.7
2 1.6 8.6 14 20 22 20 15 8.8 4.6 2.3 1.5 1.7
3 1.6 9.0 15 19 20 20 16 8.7 4.2 2.2 1.5 1.7
4 1.7 9.0 14 17 20 20 16 8.5 4.3 2.2 1.5 1.6
5 1.9 9.1 15 18 20 20 16 8.7 4.3 2.0 1.6 1.6
6 1.8 8.8 16 18 20 20 17 8.4 4.5 1.9 1.6 1.5
7 1.8 9.2 17 16 20 20 17 8.3 4.4 2.0 1.6 1.5
8 1.8 9.1 16 15 19 17 16 7.8 4.2 2.0 1.6 1.4
9 1.8 10 24 16 19 16 15 7.7 3.9 1.9 1.7 1.4
10 1.9 11 26 16 19 16 15 7.4 3.8 2.0 1.7 1.5
11 2.1 12 16 17 19 16 14 7.3 3.9 1.9 1.7 1.6
12 2.1 11 16 17 20 15 15 6.9 3.8 2.0 1.7 1.6
13 2.2 11 16 18 19 15 12 6.5 4.1 1.9 1.7 1.6
14 2.2 11 17 17 18 18 11 5.9 4.8 1.9 1.7 1.6
15 2.6 11 16 17 19 16 11 6.1 5.0 2.0 1.7 1.8
16 2.6 11 16 20 19 17 11 6.1 4.9 1.9 1.7 1.8
17 2.9 11 16 18 18 16 11 6.3 4.2 1.7 1.6 1.8
18 3.1 12 14 16 17 16 11 6.2 3.5 1.7 1.6 1.8
19 3.4 12 15 16 14 15 11 6.8 3.2 1.9 1.5 1.8
20 3.7 12 15 16 15 15 10 6.3 3.1 2.3 1.4 1.8
21 4.1 14 14 17 15 14 11 8.1 3.0 2.3 1.4 2.0
22 4.3 18 14 20 15 14 11 6.4 3.0 2.1 1.5 2.1
23 4.5 14 14 18 17 15 11 6.1 2.8 1.8 1.5 2.1
24 4.6 13 15 19 17 15 9.7 6.1 2.7 1.6 1.5 2.1
25 4.6 13 14 21 18 16 10 5.8 2.6 1.6 1.6 2.5
26 4.9 13 15 183 19 14 9.9 5.4 2.4 1.5 1.5 11
27 5.7 13 15 485 20 14 9.7 5.2 2.5 1.6 1.6 2.4
28 6.5 13 16 90 21 15 9.4 5.3 2.4 1.6 1.6 2.2
29 6.8 14 16 37 --- 15 9.2 5.0 2.6 1.6 1.6 2.2
30 7.4 14 17 30 --- 15 8.9 4.7 2.3 1.6 1.8 2.2
31 9.4 --- 17 27 --- 14 --- 4.4 --- 1.5 1.8 ---
TOTAL 107.3 344.9 495 1293 523 510 374.8 210.3 109.2 58.8 49.6 63.6
MEAN 3.46 11.5 16.0 41.7 18.7 16.5 12.5 6.78 3.64 1.90 1.60 2.12
MAX 9.4 18 26 485 24 21 17 9.1 5.0 2.3 1.8 11
MIN 1.6 8.1 14 15 14 14 8.9 4.4 2.3 1.5 1.4 1.4
AC-FT 213 684 982 2560 1040 1010 743 417 217 117 98 126
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1931 - 1997, BY WATER YEAR (WY)
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 24.5 36.2 52.2 101 210 228 127 45.6 21.9 15.1 15.3 17.2
MAX 58.2 222 376 1487 2334 2229 1015 261 157 32.5 29.3 41.7
(WY) 1977 1966 1967 1993 1993 1938 1958 1978 1978 1969 1969 1976
MIN 3.46 10.7 13.5 19.3 18.2 12.6 11.6 6.78 3.64 1.90 1.60 1.63
(WY) 1997 1995 1995 1990 1991 1990 1990 1997 1997 1997 1997 1996
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1931 - 1997
ANNUAL TOTAL 5515.6 4139.5
ANNUAL MEAN 15.1 11.3 73.8
HIGHEST ANNUAL MEAN 402 1969
LOWEST ANNUAL MEAN 11.3 1997
HIGHEST DAILY MEAN 916 Feb 21 485 Jan 27 21000 Feb 25 1969
LOWEST DAILY MEAN 1.1 Aug 5 1.4 Aug 20 .00 Sep 21 1995
ANNUAL SEVEN-DAY MINIMUM 1.4 Aug 5 1.5 Aug 18 .37 Sep 20 1995
INSTANTANEOUS PEAK FLOW 1140 Jan 27 70600 Mar 2 1938
INSTANTANEOUS PEAK STAGE 3.91 Jan 27 23.70 Mar 2 1938
ANNUAL RUNOFF (AC-FT) 10940 8210 53460
10 PERCENT EXCEEDS 25 19 54
50 PERCENT EXCEEDS 9.1 8.8 27
90 PERCENT EXCEEDS 1.6 1.6 11
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Last modified: Wed Mar 10 14:06:23 PST 1999