11239500 SHAVER LAKE NEAR BIG CREEK, CA.  


LOCATION - Lat 37°08'41", long 119°18'06", in SW 1/4 SE 1/4 sec.13, T.9 S., R.24 E., Fresno County, 
Hydrologic Unit 18040006, Sierra National Forest, near center of dam on Stevenson Creek, and 5.2 
mi southwest of town of Big Creek.

DRAINAGE AREA - 29.1 mi".

PERIOD OF RECORD - November 1909 to current year. Prior to January 1927, monthly contents only, published 
in WSP 1315-A; January 1927 to September 1931, published in WSP 721. Maximum and minimum daily 
contents (water years 1928.39) summarized in WSP 881. Prior to 1960, maximum and minimum daily contents 
were published.

REVISED RECORDS - WSP 1565: Drainage area.

GAGE - Water-stage recorder. Datum of gage is sea level (levels by Southern California Edison Co.). Prior 
to Jan. 11, 1927, gage on rockfill dam a short distance upstream at different datum.

REMARKS - Storage began prior to 1905. Original lake formed by rockfill dam, usable capacity, 5,500 acre-ft. 
Water diverted by Fresno Flume and Lumber Co.'s Flumes No. 1 and 2 beginning prior to 1907 
and discontinued July 7, 1920. Present lake formed by concrete-arch dam; dam completed Nov. 18, 1927. 
Usable capacity of present lake, 135,568 acre-ft, between elevations 5,225 ft, trash-rack foundation, 
and 5,370.13 ft, crest of spillway. Additional storage of 92 acre-ft is not available for release. 
Water is received from Pitman Creek (since Feb. 22, 1928) and Huntington Lake (since Apr. 21, 1928) 
via Huntington.Shaver Conduit and Eastwood Powerplant (station 11238250). Water is released for power 
development in Big Creek powerplants. Records, including extremes, represent contents at 2400 hours. 
See schematic diagram of lower San Joaquin River Basin.

COOPERATION - Records were collected by Southern California Edison Co., under general supervision of 
the U.S. Geological Survey, in connection with a Federal Energy Regulatory Commission project. Contents 
not rounded to U.S. Geological Survey standards.

EXTREMES FOR PERIOD OF RECORD - Maximum contents, 135,897 acre-ft, July 5, 1946, Aug. 4, 1978, maximum 
elevation, 5,370.28 ft, Aug. 4, 1978; minimum contents, 652 acre-ft, Mar. 7, 1942, elevation, 5,249.38 
ft.

EXTREMES FOR CURRENT YEAR - Maximum contents, 134,542 acre-ft, June 7, elevation, 5,369.66 ft; minimum, 
77,348 acre-ft, Nov. 14, elevation, 5,340.36 ft. Capacity table (elevation, in feet, and contents, 
in acre-feet) (Based on table provided by Southern California Edison Co., dated Oct. 1, 1967) 5,245 
379 5,265 3,206 5,300 24,004 5,340 76,741 5,250 700 5,270 4,748 5,310 34,455 5,350 94,568 5,255 1,254 
5,280 9,189 5,320 46,797 5,371 137,476 5,260 2,070 5,290 15,598 5,330 60,942

              RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001

                                               DAILY OBSERVATION AT 2400 HOURS

DAY      OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

1     109411    86554    83147    84202    88464    94587    98252   107591   134002   128109   121434   110173
2     109131    86140    83112    83934    88421    94797    98350   108049   134110   127877   121037   110173
3     108129    85477    83251    84105    88395    95102    98406   108550   134240   127622   120392   110173
4     106975    84397    83478    84275    88480    95807    98387   108448   134261   127728   119957   109932
5     105844    83321    83077    84534    88454    96339    98445   108368   134393   127578   119356   109210

6     105154    82465    83461    84528    88556    96721    98560   108268   134459   127728   119087   109290
7     104541    81683    83548    84628    89096    97105   100004   108389   134542   127898   118590   109090
8     103620    80976    83760    84903    89365    97467   100043   109893   134172   127387   118054   108188
9     102915    79841    83813    85110    89395    97927   100390   110900   133868   126900   117272   107253
10    102623    78767    83724    85798    89425    98273   100912   111546   133932   126393   117354   107234

11    102058    78478    83743    86151    89455    98445   101319   112251   133563   126414   116900   107234
12    101223    78156    83813    86323    89484    98445   101262   113247   133237   126055   117272   106874
13    100427    77667    83706    86514    89514    98234   101281   114222   132956   126075   116840   107008
14    100043    77348    83813    86739    90228    98176   101514   115407   132373   125822   116243   107153
15     99214    78375    83831    86948    90467    98252   101630   116470   131855   125591   115241   107418

16     98522    78614    83251    87121    90614    98273   101844   116922   131295   125230   115160   107303
17     97966    79875    83355    87203    90487    98368   101980   117601   130566   125104   114403   107787
18     96933    81148    83444    87233    90781    98406   101903   118655   130137   124914   113611   107892
19     95807    81942    83374    87245    91301    98292   102856   120103   129709   124745   113387   107948
20     94758    82048    83391    87274    91712    98022   103501   121811   128917   124640   113488   107253

21     93832    82728    83321    87504    92029    97966   103736   123528   129304   124451   113429   106558
22     92944    83654    83094    87769    92400    98004   103912   125448   129174   124283   113165   105705
23     92307    83654    83199    88017    92644    98062   103796   126936   128855   123988   112900   105034
24     91712    83777    83338    88483    93115    97966   104244   128326   128982   123715   112535   105370
25     90799    83531    83461    88347    93491    97181   104601   129206   128917   123463   112333   105192

26     90101    83060    83618    88123    93757    97181   105173   130269   129197   123233   111948   105015
27     89420    82378    83760    88080    93963    97277   105765   131255   128917   122897   111565   105094
28     88706    82378    83848    87856    94417    97430   106259   132226   128790   122414   111302   104244
29     88344    82361    83990    87776      ---    97621   106616   132830   128620   122163   111181   104424
30     87908    83025    84060    87878      ---    97832   106935   133305   128344   122102   111061   103834

31     87056      ---    84219    87927      ---    98043      ---   133717      ---   122019   110173      ---
MAX   109411    86554    84219    88483    94417    98445   106935   133717   134542   128109   121434   110173
MIN    87056    77348    83077    83934    88395    94587    98252   107591   128344   122019   110173   103834
a    5345.94  5343.67  5344.35  5346.42  5349.92  5351.82  5356.38  5369.28  5366.78  5363.78  5358.00  5354.81
b     -24065    -4031    +1194    +3708    +6490    +3626    +8892   +26782    -5373    -6325   -11846    -6339
CAL YR 2000 b -8256
WTR YR 2001 b -7287