11214550 COURTRIGHT RESERVOIR NEAR NELSON MOUNTAIN, CA.  


LOCATION - Lat 37°04'45", long 118°58'07", in NW 1/4 NW 1/4 sec.7, T.10 S., R.28 E., Fresno County, 
Hydrologic Unit 18030010, Sierra National Forest, at left end of dam on Helms Creek, 2.5 mi upstream 
from mouth, 4.6 mi east of Nelson Mountain, and 9.7 mi west of Blackcap Mountain.

DRAINAGE AREA - 39.7 mi".

PERIOD OF RECORD - October 1958 to September 1982 (monthend elevation and contents only), October 1982 
to current year.

GAGE - Water-stage recorder. Datum of gage is sea level (levels by Pacific Gas & Electric Co.).

REMARKS - Reservoir is formed by rockfill dam completed in 1958. Usable capacity, 123,300 acre-ft, between 
elevations 7,902 ft, invert of tunnel, and 8,184 ft, elevation of spillway. Dead storage negligible. 
Records, including extremes, represent total contents at 2400 hours. See schematic diagram of 
Kings River Basin.

COOPERATION - Records were provided by Pacific Gas & Electric Co., under general supervision of the U.S. 
Geological Survey, in connection with Federal Energy Regulatory Commission Projects 175 and 1988. 
Records not rounded to U.S. Geological Survey standards.

EXTREMES FOR PERIOD OF RECORD - Maximum contents, 124,220 acre-ft, Sept. 26, 1982, elevation, 8,184.57 
ft; no contents in 1961.62, 1968, 1970.

EXTREMES FOR CURRENT YEAR - Maximum contents, 121,613 acre-ft, May 28, elevation, 8,182.97 ft; minimum, 
6,725 acre-ft, Dec. 20, elevation, 8,037.43 ft. Capacity table (elevation, in feet, and contents, 
in acre-feet) (Based on table provided by Pacific Gas & Electric Co., dated Apr. 13, 1959) 7,902 0 
7,970 736 8,035 6,269 8,115 42,141 7,950 267 7,990 1,617 8,060 12,298 8,150 75,878 7,960 462 8,010 3,129 
8,085 22,584 8,184 123,286

              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      92687    65034    43229    43404    12364    16536    29159    89080   114448   117897    94350    72741
2      89490    63629    42778    40917    15380    15042    26209    89830   117517   116038    92200    72718
3      86935    62460    41253    42143    17813    22007    23350    89530   119874   112933    90470    73409
4      85811    60001    37577    43134    15706    20943    22064    92770   118510   112150    90540    73145
5      85863    59260    34253    42487    16900    20414    22110    98870   118516   111370    90850    72501

6      85785    56875    30287    42652    18390    21536    21862   100790   116807   110277    89070    70519
7      86871    55587    26702    42237    17782    26545    22916    99754   115772   112150    86900    68098
8      87540    53807    19700    40129    10322    31068    21922    98096   113953   115709    85400    67137
9      87540    50801    15000    37128     9441    33889    22286    96720   114697   116795    83600    66900
10     87025    46572    13645    30653    12437    35990    23743    98530   115803   116623    81150    66836

11     86576    43844     9702    23093    14886    34572    24647   101534   117992   114870    82100    66943
12     86180    40582     9757    16157    10352    31947    27697   107142   119826   113300    85150    67018
13     85620    35124     8177    18886    11179    31068    29760   112062   119506   111523    83800    66441
14     86448    31615     8550    17627    11516    33331    26841   113937   117675   111737    84950    65307
15     86704    28812     7574    17539     8538    29283    28979   116461   116795   112457    85000    65634

16     85500    26707     7779    13843    13302    27607    34906   118469   115088   112043    84572    66398
17     82465    25419     8305     9276    19780    30006    40947   119154   116041   110504    83831    66686
18     79706    28396     7973    10779    25179    33575    45045   119314   115787   108771    83320    65856
19     77130    33095     7249    12130    29829    30127    51486   120372   115023   107511    83844    65097
20     74835    32521     6725     7605    29760    25202    55907   119314   113473   105662    83320    64919

21     75078    32151     6951     7568    31433    22044    63206   117343   111981   105974    82836    64271
22     74766    32223     7903     9720    34565    21161    68044   117122   110549   106152    82107    64230
23     75344    36198     9805     9076    35911    21097    69805   115522   111997   105396    81347    64490
24     73804    40438    11491     9300    30970    25323    68155   115179   114107   104208    80432    64302
25     72648    44914    19187     9305    32727    26789    67907   113700   114852   102525    79778    63835

26     70718    47615    26557     9219    30383    27979    70395   116446   115007   100910    80335    63165
27     68381    47700    31420    13850    27140    26958    77390   118707   114976    98950    79308    62348
28     67957    47512    38654    17344    22029    25674    80008   121613   115116    99000    77531    61608
29     69554    45382    44996    16577      ---    26290    80202   120179   114697    99600    76227    61629
30     67740    45029    45655    10859      ---    25875    83840   117694   116132    97950    74743    62104

31     66772      ---    45448    13605      ---    26157      ---   113650      ---    96200    73296      ---
MAX    92687    65034    45655    43404    35911    35990    83840   121613   119874   117897    94350    73409
MIN    66772    25419     6725     7568     8538    15042    21862    89080   110549    96200    73296    61608
a    8141.82  8118.61  8119.12  8464.07  8083.93  8091.50  8156.61  8177.93  8179.53  8166.01  8147.75  8137.34
b     +42767   -21743     +419   -31843    +8424    +4128   +57683   +29810    +2482   -19932   -22904   -11192
CAL YR 2000 b -14455
WTR YR 2001 b -30140