USGS Water-Year Summary 2024
04111000 GRAND RIVER NEAR EATON RAPIDS, MI
LOCATION - Lat 42°32'05", long 84°37'23" referenced to North American Datum of 1927, in NE 1/4 sec.26, T.2 N., R.3 W., Eaton County, MI, Hydrologic Unit 04050004, on right bank 400 ft upstream from bridge on Petrieville Highway, 2 mi northeast of Eaton Rapids, 2.5 mi downstream from Spring Brook, 25 mi upstream from Red Cedar River, and at mile 178.
DRAINAGE AREA - 661 mi².
REVISIONS HISTORY - WSP 1707: 1951 (m).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1950 to September 1982, October 1995 to September 2022, February 2024 to current year. Gage-height records collected in this vicinity 1905-28 (flood seasons only) are contained in reports of the National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 852.32 ft above NAVD 88, converted on July 9, 2020 from NGVD 29 (levels by Michigan Department of Natural Resources).
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Apr. 4, 1950, reached a stage of 8.15 ft, discharge, 3,860 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,850 ft³/s, Feb. 22, 2018, gage height, 8.55 ft; minimum discharge, 14 ft³/s, Dec. 20, 1962, Oct. 14, 1966.