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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
06027600 JEFFERSON RIVER AT PARSONS BRIDGE, NEAR SILVER STAR, MT
LOCATION - Lat 45°44'51.01", long 112°11'14.02" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 SW 1/4 sec.14, T.1 S., R.5 W., Madison County, MT, Hydrologic Unit 10020005, on right bank, 0.2 mi downstream from Parsons Bridge, 1.8 mi north of Waterloo, 5.9 mi northeast of Silver Star, and at river mile 2,383.0.
DRAINAGE AREA - 7,759 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 2006 to current year (seasonal records only).
GAGE - Water-stage recorder. Elevation of gage is 4,420 ft, referenced to the North American Vertical Datum of 1988.
REMARKS - Some regulation occurs from Lima, Clark Canyon, and Ruby River Reservoirs. Numerous diversions for
irrigation occur upstream from station.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE (seasonal records): July 2006 to current year.
INSTRUMENTATION - Water temperature recorder was installed Jun. 28, 2006. The last water temperature probe was installed Mar. 28, 2011.
REMARKS -
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: During seasonal operation. Maximum recorded 27.5°C, July 5, 2007; minimum recorded,
4.5°C, September 29-30, 2019.
