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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.
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USGS Water-Year Summary 2024
05430500 ROCK RIVER AT AFTON, WI
LOCATION - Lat 42°36'49", long 89°04'18" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 sec.28, T.2 N., R.12 E., Rock County, WI, Hydrologic Unit 07090001, previously located at Lat 42°36'33", long 89°04'14"; on the W Eau Claire Rd downstream bridge rail near the right edge of water.
DRAINAGE AREA - 3,340 mi².
REVISIONS HISTORY - WSP 1238: 1916(M), 1919(M), 1933, 1937-38, 1943. WDR WI-79-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1914 to current year. Monthly discharge for January 1914 published in WSP 1308. Unpublished daily discharges for January and February 1914 in District files.
GAGE - Water-stage recorder and Crest-stage gage. Datum of gage is 742.14 ft above NAVD of 1988.
REMARKS - Records are considered good except for estimated discharges which are poor and other periods as noted. For records status prior to October 1, 2013, see remarks printed in annual water-data reports. Diurnal fluctuation caused by power plants above station. Gage-height telemeter at station.
