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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
04099000 ST. JOSEPH RIVER AT MOTTVILLE, MI
LOCATION - Lat 41°48'03", long 85°45'22" referenced to North American Datum of 1927, in SW 1/4 sec.06, T.8 S., R.12 W., St. Joseph County, MI, Hydrologic Unit 04050001, on right bank 575 ft upstream from bridge on U.S. Highway 12 in Mottville, 0.4 mi downstream from American Electric Power Co. hydroelectric plant, 4 mi upstream from Pigeon River, and at mile 96.
DRAINAGE AREA - 1,866 mi².
REVISIONS HISTORY - WSP 1387: 1930, 1932, 1938, 1940-42, 1945. WSP 1911: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1923 to current year. Monthly discharge only for some periods, published in WSP 1307.
GAGE - Water-stage recorder. Datum of gage is 754.85 ft above NAVD 88, converted on July 9, 2020 from NGVD 29 (American Electric Power Co. bench mark). Prior to Oct. 1, 1951, at site 0.4 mi upstream at datum 4.2 ft higher.
REMARKS - Flow regulated by powerplants upstream from station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 11,400 ft³/s, June 4, 1989, gage height, 10.41 ft; peak stage at previous site and datum 6.56 ft, Apr. 27, 1950.
AVERAGE DISCHARGE FOR PERIOD OF RECORD - Does not include water year 1924.
