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Water-Year Summary for Site 01073000

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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
00060 Discharge(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 43°08'55", long 70°57'56" referenced to North American Datum of 1927, Strafford County, NH, Hydrologic Unit 01060003, on left bank, 200 ft upstream from Old Concord Road bridge, 2.5 mi west of Durham, and 7 mi upstream from mouth.
DRAINAGE AREA - 12.1 mi².
PERIOD OF RECORD - Discharge records: October 1934 to current year. October and November 1934 monthly discharge only, published in WSP 1301.
GAGE - Water-stage recorder, crest-stage gage, and V-notch sharp-crested weir. Datum of gage is 64.58 ft above North American Vertical Datum of 1988. Concrete control prior to August 18, 2005, at site 150 ft upstream at datum 1.90 ft higher. Prior to October 1, 1964, at datum 2.90 ft higher.
COOPERATION - New Hampshire Department of Environmental Services.
REMARKS - WATER YEARS 2014-19: Records good except those for estimated discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,320 ft³/s, April 16, 2007, gage height, 10.20 ft; minimum discharge, 0.01 ft³/s, September 6 and 7, 1999.