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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
04117500 THORNAPPLE RIVER NEAR HASTINGS, MI
LOCATION - Lat 42°36'57", long 85°14'11" referenced to North American Datum of 1927, in SE 1/4 sec.27, T.3 N., R.8 W., Barry County, MI, Hydrologic Unit 04050007, on right bank 100 ft upstream from bridge on McKeown Road, 0.6 mi downstream from Cedar Creek, 2.0 mi downstream from Thornapple Lake, and 3.2 mi southeast of Hastings.
DRAINAGE AREA - 385 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1944 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 786.31 ft above NAVD 88, converted on July 9, 2020 from NGVD 29 (levels by Michigan Department of Natural Resources). Prior to Oct. 1, 1965, nonrecording gage at same site and datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,810 ft³/s, Apr. 7, 1947, gage height, 10.20 ft, from graph based on gage readings; minimum discharge, 33 ft³/s, Aug. 10, 1964.
