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Water-Year Summary for Site 05387440

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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.
Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
05387440 Upper Iowa River at Bluffton, IA
LOCATION - Lat 43°24'25", long 91°53'56" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 SE 1/4 sec.10, T.99 N., R.9 W., Winneshiek County, IA, Hydrologic Unit 07060002, on left bank 10 ft downstream from bridge on County Highway W20, 6.8 mi northwest of Decorah, 0.5 mi upstream from Silver Creek, and 73.9 mi upstream from mouth.
DRAINAGE AREA - 367 mi².
PERIOD OF RECORD - Partial-record low-flow measurement site from September 1957 to July 1977; stage-only records from October 1999 to September 2002; discharge records from October 2002 to current year.
GAGE - Water-stage recorder. Datum of gage is 945.50 ft above National Geodetic Vertical Datum of 1929.
REMARKS - Records for water year 2014-2018 rated good except for estimated daily discharges, which are poor. For records status prior to October 1, 2013, see remarks printed in annual water-data reports.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 21, 1954, discharge 13,600 ft³/s, on basis of peak flow at Decorah gage, 11.0 mi downstream. Flood of March 27, 1961, discharge 20,200 ft³/s.