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USGS Water-Year Summary 2024
05320000 BLUE EARTH RIVER NEAR RAPIDAN, MN
LOCATION - Lat 44°05'44", long 94°06'33" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.6, T.107 N., R.27 W., Blue Earth County, MN, Hydrologic Unit 07020009, on left bank 0.2 mi downstream from power plant (reactivated in 1984) operated by Rapidan Redevelopment Limited Partnership, 2 mi west of Rapidan, 3.5 mi downstream from Watonwan River, and 7.8 mi upstream from Le Sueur River.
DRAINAGE AREA - 2,410 mi².
REVISIONS HISTORY - WSP 1508: 1910.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1909 to November 1910 published as "at Rapidan Mills" (no winter records), October 1939 to September 1945, July 1949 to current year. Annual maximums only, 1912 to 1939.
GAGE - Water-stage recorder. Datum of gage is 807.83 ft above sea level (NGVD of 1929). July 20, 1909 to Apr. 28, 1910, non-recording gage at site 0.2 mi upstream at different datum. Apr. 29 to Nov. 12, 1910, non-recording gage at site 800 ft upstream at different datum. Oct. 4 to Nov. 14, 1939, non-recording gage at present site and datum.
REMARKS - Flow regulated by power plant upstream.
Records good except for Dec. 30 through Mar. 15, which are fair.
Records good except for Dec. 30 through Mar. 15, which are fair.
EXTREMES FOR PERIOD OF RECORD - Minimum discharge, 6.9 ft³/s, Oct. 12, 1955.
