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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 2025
05450400 Iowa River at Steamboat Rock, IA
LOCATION - Lat 42°24'29.2", long 93°04'22.7" referenced to North American Datum of 1983, in NW 1/4 sec.28, T.88 N., R.19 W., Hardin County, IA, Hydrologic Unit 07080207,
REVISIONS HISTORY - Revisions: Gage datum was updated to 950.69 ft NAVD88 on January 1, 2023, as determined by a GNSS Level II survey. Gage datum was previously published as 951.46 ft NGVD29 from levels.
SURFACE-WATER RECORDS
GAGE - Water-stage recorder. Datum of gage is 950.69 ft above NAVD of 1988.
