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Water-Year Summary for Site 09091900

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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
00045 Precipitation(Sum)  
00054 Reservoir storage(Mean)  
62614 Elevation, lake/res, NGVD29(Mean)  

Water year 2022: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 39°37'37", long 107°45'25" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.07, T.5 S., R.92 W., Garfield County, CO, Hydrologic Unit 14010005, in gate house of Rifle Gap dam on Rifle Creek, 6.7 mi northeast of Rifle.
DRAINAGE AREA - 137 mi².
PERIOD OF RECORD - May 2003 to September 2012, October 2017 to current year. For a complete listing of historical data available for this site, see https://waterdata.usgs.gov/nwis/inventory/?site_no=09091900&agency_cd=USGS.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 5,960.00 ft above NGVD of 1929 (levels by U.S. Bureau of Reclamation).
COOPERATION - Capacity tables provided by U.S. Bureau of Reclamation.
REMARKS - Reservoir is formed by an earthfill dam. Dam completed May 1967. Capacity, 13,600 acre-ft, 1967 survey, at elevation 5,960.00, crest of spillway. Dead storage below elevation 5,903.0 ft, 896 acre-ft. Inactive storage below elevation 5,908.0 ft, 1,440 acre-ft. Figures given are total contents.
EXTREMES FOR PERIOD OF RECORD - Maximum daily mean contents, 14,000 acre-ft, June 4, 2011, elevation, 5,961.11 ft; minimum daily mean contents, 1,786 acre-ft, October 12, 2021, elevation, 5,910.69 ft.
PERIOD OF RECORD - October 2017 to current year (seasonal records only).
INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Datum of gage is 5,960.00 ft above NGVD of 1929 (levels by U.S. Bureau of Reclamation).
EXTREMES FOR PERIOD OF RECORD - (seasonal only) Maximum daily precipitation, 1.7 inches, June 21, 2019.
REMARKS - Gage operated seasonally, April through September.