USGS Water-Year Summary 2023
05320500 LE SUEUR RIVER NEAR RAPIDAN, MN
LOCATION - Lat 44°06'35", long 94°02'30" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.35, T.108 N., R.27 W., Blue Earth County, MN, Hydrologic Unit 07020011, on right bank 10 ft downstream from abandoned highway bridge, 1.8 mi northeast of Rapidan, and 2.3 mi upstream from mouth.
DRAINAGE AREA - 1,110 mi².
REVISIONS HISTORY - Unpublished, 2009: 1992(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1939 to September 1945, July 1949 to current year.
GAGE - Water-stage recorder. Datum of gage is 775.76 ft above sea level (NGVD of 1929). Prior to Nov. 15, 1939, non-recording gage at same site and datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 30,500 ft³/s, stage 21.35 ft, Sept. 26, 2010; maximum stage 22.10 ft, Apr. 8, 1965; minimum discharge, 1.6 ft³/s, Feb. 9, 1959.