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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
13092747 ROCK CREEK ABOVE HIGHWAY 30/93 CROSSING AT TWIN FALLS, ID
LOCATION - Lat 42°33'45", long 114°29'41" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 NW 1/4 sec.17, T.10 S., R.17 E., Twin Falls County, ID, Hydrologic Unit 17040212, Twin Falls quad., on right bank 40 ft above private road bridge, 0.2 mi south of Highway 30/93 in Twin Falls.
DRAINAGE AREA - 259 mi².
REVISIONS HISTORY - WDR-US-2010: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1992 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary.
REMARKS - Flow partially regulated by many diversions upstream for irrigation and irrigation-return flows.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 623 ft³/s, May 30, 2019, gage height, 8.82 ft; maximum gage height, 8.85 ft, May 18, 2005; minimum daily, 26 ft³/s, Apr. 2, 1994.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Chemical analysis Dec. 1997 to current year. Continuous water temperature data were collected from Jul. to Sep. 1996, Jun. to Sep. 1997, Jun. to Aug. 1998, Jun. to Sep. 2002, Aug. 2012 to current year.
REMARKS - Numerical uncertainty is not currently computed for time-series water-quality records but qualitative ratings are provided based on professional judgment.
Water Year 2014: Records good. Water Year 2015: Records good. Water Year 2016: Records good. Water Year 2017: The practice of using qualitative ratings to describe data accuracy was discontinued in water year 2017.
