USGS Water-Year Summary for Site 06610000

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	Available Parameters
	00010 Temperature, water(Mean)
	00060 Discharge(Mean)
	80154 Suspnd sedmnt conc(Mean)
	80155 Suspnd sedmnt disch(Mean)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

06610000 Missouri River at Omaha, NE

LOCATION - Lat 41°15'32.6", long 95°55'23.7" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.23, T.15 N., R.13 E., Douglas County, NE, Hydrologic Unit 10230006, on right bank on right side of concrete floodwall at foot of Douglas Street, 275 ft downstream from bridge on U.S. Interstate 480 in Omaha, and 615.9 mi upstream from mouth. Water-quality samples collected by boat, 8.5 mi downstream from gage.

DRAINAGE AREA - 322,800 mi².

REVISIONS HISTORY - WSP 761: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge records from September 1928 to current year. Stage-only records from April 1872 to December 1899 in reports of the Missouri River Commission, and since January 1875 in reports of the U.S. National Weather Service.

GAGE -

Water-stage recorder.

Datum of gage is 948.97 ft. above NAVD of 1988 (US Army Corps of Engineers).

Sept. 27, 2005, to July 31, 2016, at same site at datum 948.24 ft above National Geodetic Vertical Datum of 1929.

Oct. 1, 1982, to Sept. 26, 2005, at site 425 ft. downstream from Douglas Street bridge at datum 948.24 ft above National Geodetic Vertical Datum of 1929.

Oct. 1, 1936, to Sept. 30, 1982, at site 425 ft. downstream from Douglas Street bridge at datum 958.24 ft above National Geodetic Vertical Datum of 1929.

Oct. 19, 1931, to Sept. 30, 1936, water-stage recorder at site 0.4 mi downstream from Douglas Street bridge at datum 958.24 ft above National Geodetic Vertical Datum of 1929.

Dec. 1, 1929, to Oct. 18, 1931, non-recording gage at Douglas Street bridge at datum 958.24 ft above National Geodetic Vertical Datum of 1929. Gage datum published as 959.71 ft. above mean sea level.

Sept. 1, 1928, to Nov. 30, 1929, non-recording gage attached to Illinois Central Railroad bridge at site 2.0 mi upstream at datum 961.21 ft above National Geodetic Vertical Datum of 1929. Gage datum published as 962.68 ft above mean sea level.

Mar. 1, 1907, to Aug. 31, 1928, non-recording gage at Douglas Street bridge at datum 958.24 ft above National Geodetic Vertical Datum of 1929.

Apr. 10, 1872, to Feb. 28, 1907, non-recording gage at several sites within 0.6 mi of current site at datum 957.81 ft above National Geodetic Vertical Datum of 1929.

REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS IA Water Science Center. Flow regulated by upstream main-stem reservoirs. Fort Randall Dam was completed in July 1952, with storage beginning in December 1952. Gavins Point Dam was completed in July 1955, with storage beginning in December 1955.

EXTREMES FOR PERIOD OF RECORD - Minimum daily discharge, 2,200 ft³/s, January 6, 1937; minimum instantaneous gage height, 6.63 ft, January 1, 2014.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1969-1976, 1978 to current year.

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Daily instantaneous values collected in conjunction with suspended-sediment samples, October 1972 to September 1976, January 1978 to September 1981, October 1991 to September 2003, October 2008 to September 2010, records fragmentary for some periods. Beginning in October 2010, daily instantaneous values published with water-quality samples.
WATER TEMPERATURE: Daily instantaneous values collected in conjunction with suspended-sediment samples, October 1971 to September 1976, January 1978 to September 1981, October 1991 to September 2003, October 2008 to September 2010, records fragmentary for some periods. Beginning in October 2010, daily instantaneous values published with water-quality samples. Daily mean, October 2011 to current year, records fragmentary.
SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: April 1939 to December 1959, April to November 1960, April to November 1961, March to November 1962, March to October 1963, April to October 1964, April to December 1965, February 1966 to January 1967, March to December 1967, April to December 1968, March 1969 to September 1971, October 1971 to September 1976, October 1991 to September 2003, October 2008 to current year. Prior to October 1971, suspended-sediment discharge records only, provided by U.S. Army Corps of Engineers.