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USGS Water-Year Summary 2024
11289000 Modesto Canal near La Grange, CA
LOCATION - Lat 37°40'21", long 120°28'26" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.18, T.3 S., R.14 E., Stanislaus County, CA, Hydrologic Unit 18040009, on left bank, 0.9 mi northwest of La Grange, and 1.7 mi downstream from intake at La Grange Dam.
REVISIONS HISTORY - WSP 1315-A: 1904-09 (monthly figures only).
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1903 to current year. Monthly discharge only for some periods, published in WSP 1315-A.
GAGE - Water-stage recorder and concrete control. Datum of gage is 267.47 ft above NGVD of 1929 and 270.30 ft above NAVD of 1988. See WSP 1930 for history of changes prior to March 1932. March 1932 to Apr. 27, 1988, at site 1.1 mi upstream at different datum.
REMARKS - Canal diverts from right bank of Tuolumne River at La Grange Dam for irrigation in Modesto and Waterford Irrigation Districts. See schematic diagram of Tuolumne River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 1,820 ft³/s, July 1, 1935; no flow at times in most years.
