USGS Water-Year Summary for Site 06342500

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	Available Parameters
	00010 Temperature, water(Max.,Min.)
	00010 Temperature, water(Mean) [Mean Water Temperature]
	00060 Discharge(Mean)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2023

06342500 MISSOURI RIVER AT BISMARCK, ND

LOCATION - Lat 46°48'51", long 100°49'17" referenced to North American Datum of 1983, in sec.31, T.139 N., R.80 W., Burleigh County, ND, Hydrologic Unit 10130101, on left bank 40 ft upstream from Bismarck City waterplant, 2,100 ft downstream from Burlington Northern Railway bridge, 1.6 mi northwest of Bismarck Post Office, 3.5 mi upstream from Heart River, and at mile 1,314.5.

DRAINAGE AREA - 186,400 mi². approximately.

SURFACE-WATER RECORDS

PERIOD OF RECORD - DAILY DISCHARGE--October to November 1927, April 1928 to current year. See WSP 1729 or 1917 for history of data prior to April 1928.

PERIOD OF RECORD.--DAILY GAGE HEIGHT--October 2000 to current year.

GAGE - Water-stage recorder. Datum of gage is 1619.6 ft above North American Vertical Datum of 1988 (NAVD88). National Geodetic Vertical Datum of 1929 (NGVD29) datum was converted to NAVD88 datum using the National Geodetic Surveys VDATUM transformation tool in November, 2017. Prior to October 1, 2017, datum was published as 1,618.28 ft above the NGVD29.

REMARKS - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for estimated discharges, which are poor, unless otherwise noted.

REGULATION.--Flow regulated by Lake Sakakawea (station 06338000), 75.4 mi upstream, since November 1953.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known, 31.6 ft, March 31, 1881, present site and datum, ice jam. A stage of 30.4 ft occurred on March 14, 1910, present site and datum, ice jam.

EXTREMES FOR PERIOD PRIOR TO REGULATION - Prior to completion of Garrison Dam in 1953, maximum peak flow, 500,000 ft³/s, April 6, 1952, peak stage, 27.90 ft.

EXTREMES FOR PERIOD AFTER REGULATION.--Since completion of Garrison Dam in 1953, maximum peak flow, 155,000 ft³/s, June 25, 28, 2011, peak stage, 19.05 ft; maximum peak stage, 19.25 ft, July 1, 2011.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water year 1969 to current year.

PERIOD OF DAILY RECORD -
WATER TEMPERATURE: October 1966 to April 1975, October 2008 to current year.

SPECIFIC CONDUCTIVITY: February 1972 to August 1975 (weekly).

SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: June 1946 to September 1981. Daily suspended-sediment discharge for June 1946 to September 1971 furnished by the U.S. Army Corps of Engineers.

REMARKS -

RECORD RATED - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good unless otherwise noted.

EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum recorded, 21.8°C, July 20, 21, 2016; minimum recorded, -0.2°C, December 19, 2015, may have been lower during period of no record.

SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily mean, 2,800 mg/L, May 7, 1972; minimum daily mean, 14 mg/L, December 15-21, 1977.

SUSPENDED-SEDIMENT DISCHARGE: Maximum daily, 5,200,000 tons/day, March 29, 1947; minimum daily, 270 tons/day, January 4, 1966.