2001 California Hydrologic Data Report
11249500 MADERA CANAL AT FRIANT, CA.
LOCATION - Lat 37°00'10", long 119°42'21", in NW 1/4 SW 1/4 sec.5, T.11 S., R.21 E., Madera County,
Hydrologic Unit 18040006, at Friant Dam, 0.9 mi northeast of Friant.
PERIOD OF RECORD - October 1943 to current year. Monthly discharge only for October 1943 to September
1948 published in WSP 1315-A. October 1954 to September 1966 published as "Friant.Madera Canal at Friant."
REVISED RECORDS - WSP 1151: 1944.48.
GAGE - Discharge computed on basis of megawatt meter reading, efficiency of the generator coefficiant,
and net head on the turbines. Prior to Oct. 1, 1948, water-stage recorder at several sites at various
datums. Oct. 1, 1948, to Sept. 30, 1949, water-stage recorder at site 8.8 mi downstream.
REMARKS - Canal diverts from Millerton Lake (station 11250100) at right end of Friant Dam for irrigation
between San Joaquin and Chowchilla Rivers. See schematic diagram of lower San Joaquin River Basin.
COOPERATION - Records were provided by U.S. Bureau of Reclamation.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 1,330 ft³/s, July 2, 3, 1973, May 21, 1983;
no flow for many days in each year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 230 .00 .00 .00 .00 .00 .00 299 846 722 597 282
2 230 .00 .00 .00 .00 .00 .00 343 837 751 705 233
3 230 .00 .00 .00 .00 .00 .00 348 738 806 763 257
4 230 .00 .00 .00 .00 .00 78 312 527 844 718 272
5 249 .00 .00 .00 .00 .00 191 297 624 815 569 340
6 259 .00 .00 .00 .00 .00 216 275 780 751 547 354
7 259 .00 .00 .00 .00 .00 232 319 792 705 551 354
8 239 .00 .00 .00 .00 .00 313 421 769 655 460 342
9 228 .00 .00 .00 .00 .00 291 479 796 651 474 322
10 229 .00 .00 .00 .00 .00 307 504 770 697 539 246
11 229 .00 .00 .00 .00 .00 303 494 745 725 520 209
12 229 .00 .00 .00 .00 .00 295 446 757 734 490 208
13 230 .00 .00 .00 .00 .00 235 427 781 684 478 208
14 230 .00 .00 .00 .00 .00 236 469 759 691 460 243
15 230 .00 .00 .00 .00 .00 278 482 753 706 477 262
16 231 .00 .00 .00 .00 .00 403 458 789 715 476 261
17 232 .00 .00 .00 .00 .00 571 432 784 732 467 318
18 233 .00 .00 .00 .00 .00 656 399 809 742 532 350
19 234 .00 .00 .00 .00 .00 739 364 901 749 456 310
20 235 .00 .00 .00 .00 .00 631 352 899 758 434 65
21 236 .00 .00 .00 .00 .00 494 375 892 765 613 .00
22 236 .00 .00 .00 .00 .00 385 409 886 788 676 .00
23 236 .00 .00 .00 .00 .00 461 448 874 756 599 .00
24 236 .00 .00 .00 .00 .00 608 678 855 768 596 .00
25 235 .00 .00 .00 .00 .00 500 755 786 793 579 .00
26 177 .00 .00 .00 .00 .00 296 553 719 828 563 .00
27 197 .00 .00 .00 .00 .00 316 507 720 851 547 .00
28 236 .00 .00 .00 .00 .00 356 588 770 882 491 .00
29 237 .00 .00 .00 --- .00 310 583 794 772 539 .00
30 74 .00 .00 110 --- .00 285 609 767 701 547 .00
31 .00 --- .00 110 --- .00 --- 728 --- 682 396 ---
TOTAL6796.00 0.00 0.00 220.00 0.00 0.00 9986.00 14153 23519 23219 16859 5436.00
MEAN 219 .000 .000 7.10 .000 .000 333 457 784 749 544 181
MAX 259 .00 .00 110 .00 .00 739 755 901 882 763 354
MIN .00 .00 .00 .00 .00 .00 .00 275 527 651 396 .00
AC-FT 13480 .00 .00 436 .00 .00 19810 28070 46650 46050 33440 10780
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1949 - 2001, BY WATER YEAR (WY)
MEAN 119 18.8 8.40 28.8 106 312 368 515 796 972 721 349
MAX 599 266 357 527 659 1094 1258 1261 1277 1293 1233 1153
(WY) 1984 1999 1999 1997 1986 1980 1980 1982 1978 1973 1967 1983
MIN .000 .000 .000 .000 .000 .000 .000 .000 13.8 356 76.7 .000
(WY) 1950 1949 1949 1949 1949 1952 1964 1961 1977 1981 1977 1959
SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1949 - 2001
ANNUAL TOTAL 137568.00 100188.00
ANNUAL MEAN 376 274 361
HIGHEST ANNUAL MEAN 736 1983
LOWEST ANNUAL MEAN 43.8 1977
HIGHEST DAILY MEAN 1040 Jun 8 901 Jun 19 1330 Jul 2 1973
LOWEST DAILY MEAN .00 Jan 1 .00 Oct 31 .00 Oct 3 1948
ANNUAL SEVEN-DAY MINIMUM .00 Jan 1 .00 Oct 31 .00 Oct 3 1948
ANNUAL RUNOFF (AC-FT) 272900 198700 261600
10 PERCENT EXCEEDS 903 756 1050
50 PERCENT EXCEEDS 278 230 156
90 PERCENT EXCEEDS .00 .00 .00
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