USGS Water-Year Summary 2024
04154000 CHIPPEWA RIVER NEAR MOUNT PLEASANT, MI
LOCATION - Lat 43°37'34", long 84°42'28" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.08, T.14 N., R.3 W., Isabella County, MI, Hydrologic Unit 04080202, on right bank 12 ft downstream from bridge on South Leaton Road, 3.8 mi northeast of Mount Pleasant, and 36 mi upstream from mouth.
DRAINAGE AREA - 416 mi².
REVISIONS HISTORY - WSP 744: Drainage area. WSP 1337: 1931, 1933-40, 1945, 1948-49.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1930 to September 1931, October 1932 to current year. Gage-height records for flood seasons collected in this vicinity 1910-27, are contained in reports of National Weather Service.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 709.87 ft above NAVD 88, converted on July 9, 2020 from NGVD 29 (levels by Michigan Department of Natural Resources). Prior to Oct. 21, 1938, nonrecording gage at site 30 ft upstream at present datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,660 ft³/s, Sept. 12, 1986, gage height, 15.58 ft, from floodmark; minimum discharge, 12 ft³/s, Aug. 18, 1945.