Click
to
hide
Water-Year
Summary
instructions
and
information
- 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
06018500 BEAVERHEAD RIVER NEAR TWIN BRIDGES, MT
LOCATION - Lat 45°23'00.20", long 112°27'10.19" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 SE 1/4 sec.22, T.5 S., R.7 W., Madison County, MT, Hydrologic Unit 10020002, on left bank at downstream side of bridge on State Highway 41, 11.5 mi upstream from Ruby River, 12.7 mi southwest of Twin Bridges, 14.5 mi northeast of Dillon, and at river mile 2,430.4.
DRAINAGE AREA - 3,618 mi².
REVISIONS HISTORY - Water Supply Paper (WSP) 1309: 1938, maximum discharge (M); 1945(M). WSP 1559: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 1935 to current year. Prior to October 1968, published as "at Blaine."
GAGE - Water-stage recorder. Datum of gage is 4,809.15 ft, referenced to the National Geodetic Vertical Datum of 1929. Prior to Feb. 17, 1949, nonrecording gage at bridge 0.5 mi upstream at different elevation. Feb. 17, 1949, to June 28, 1951, nonrecording gage at present site and elevation.
REMARKS - After August 1964, flow has been partly regulated by Lima Reservoir (station number 06012000) and
Clark Canyon Reservoir (station number 06015300). Diversions for irrigation occur upstream from station.
