USGS Water-Year Summary for Site 01076000

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	00060 Discharge(Mean)

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

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USGS Water-Year Summary 2023

01076000 BAKER RIVER NEAR RUMNEY, NH

LOCATION - Lat 43°47'44", long 71°50'45" referenced to North American Datum of 1927, Grafton County, NH, Hydrologic Unit 01070001, on right bank, 200 ft upstream from small right bank tributary, 0.3 mi upstream from Halls Brook, 1.8 mi southeast of West Rumney, and 1.8 mi southwest of Rumney.

DRAINAGE AREA - 143 mi².

REVISIONS HISTORY - WSP 726: Drainage area. WSP 781: 1934(M). WSP 1231: 1929-33(M), 1934. The maximum discharge for water year 2011 has been revised to 16,300 cfs, August 28, 2011, gage height, 13.99 ft; revised daily discharges, in ft³/s, for periods in August 2011 are given below. These figures supersede those published in WDR-US-2011 and WDR-US-2012.
Aug 28….6,210 Aug 29….3,620

	TOTAL	MEAN	MAX	MIN	(ft³/s)/mi²	IN
Aug 2011	15,424	497	6,210	20	3.48	4.01
Wtr Yr 2011	147,309	404	6,210	20	2.82	38.32
Cal Yr 2011	140,815	386	6,210	20	2.70	36.64

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge records: October 1928 to September 1977, October 2001 to current year. October 1928 monthly discharge only, published in WSP 1301. Partial-record station: October 1977 to September 2001. Peak streamflow: Water years 1928 to 1977, 1985 to 1993, 1995 to current year. Miscellaneous discharge measurements: Water years 1978 to 1988, 1990 to 2001. Water quality records: Water years 1953-54.

GAGE - Water-stage recorder. Concrete control September 10, 1938 to June 12, 1976. Datum of gage is 496.94 ft above North American Vertical Datum of 1988.

COOPERATION - USGS Federal Priority Streamgage Program and the US Army Corps of Engineers, New England District.

REMARKS -

WATER YEARS 2014-15 and 2017: Records good except those for estimated discharges, which are fair.

WATER YEARS 2016, 2018-21: Records good except those for estimated discharges, which are poor.

High flow slightly affected by retarding reservoirs since 1968.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge since valley was settled about 1766, 25,900 ft³/s, November 3, 1927, gage height 17.4 ft, from flood marks, from rating extended above 3,800 ft³/s on the basis of slope-area measurements at gage heights 13.03 ft, 14.49 ft, and 15.50 ft.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 21,400 ft³/s, June 15, 1942, from rating curve extended above 3,800 ft³/s on basis of slope-area measurement at gage height 15.50 ft; minimum discharge, 6.5 ft³/s, December 4, 1947, result of freeze up.