USGS Water-Year Summary 2023
06348300 HEART RIVER AT STARK BRIDGE NEAR JUDSON, ND
LOCATION - Lat 46°42'12", long 101°12'49" referenced to North American Datum of 1983, in sec.06, T.137 N., R.83 W., Morton County, ND, Hydrologic Unit 10130203, on right bank 50 ft upstream from county bridge and 9.5 mi southeast of Judson.
DRAINAGE AREA - 2,930 mi². approximately.
SURFACE-WATER RECORDS
PERIOD OF RECORD - DAILY DISCHARGE--March 1986 to September 1988 (annual maximum discharges only), October 1988 to current year.
PERIOD OF RECORD.--DAILY GAGE HEIGHT--October 2000 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,721 ft above NAVD88, from topographic map. In October 2019, datum was converted to NAVD88 datum using the National Geodetic Surveys VDATUM transformation tool. Prior to conversion to NAVD88 datum was published as 1,720 ft above NGVD29, from topographic map.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1988 to 2012.
PERIOD OF DAILY RECORD -
WATER TEMPERATURE--May 24, 2018 to October 31, 2018.
SPECIFIC CONDUCTANCE--May 24, 2018 to October 31, 2018.
EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum recorded, 31.6°C, Aug 11, 2018; minimum recorded, 7.0 deg°C, September 28, 2018.
SPECIFIC CONDUCTANCE: Maximum recorded, 2,170 microsiemens, May 25, 2018; minimum recorded, 899 microsiemens, July 6, 2018.