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Water-Year Summary for Site 07071500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Obs.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
07071500 ELEVEN POINT RIVER NEAR BARDLEY, MO
LOCATION - Lat 36°38'55.3", long 91°12'03.0" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 SE 1/4 sec.17, T.23 N., R.2 W., Oregon County, MO, Hydrologic Unit 11010011, on downstream side of right pier of main truss of bridge on U.S. Highway 160, 7.0 mi southwest of Bardley, 7.5 mi upstream from Fredericks Fork, and at mile 53.7.
DRAINAGE AREA - 793 mi².
REVISIONS HISTORY - WSP 827: 1927-28, 1935. WSP 927: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct 1921 to current year. Oct 1921 monthly discharge only, published in WSP 1311.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 411.25 ft above North American Vertical Datum of 1988. Prior to Jun 26, 1934, nonrecording gage at site 100 ft upstream at datum 0.06 ft higher; Jun 26, 1934, to Oct 19, 1939, nonrecording gage at present site and datum.
REMARKS - Accuracy of records is discussed in the annual Station Analysis archived at the USGS MO Water Science Center.  
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage, 19.7 ft, Aug 1915, from floodmarks, discharge, 44,000 ft³/s, from rating curve extended above 25,000 ft³/s.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Nov 1993 to current year.