Click
to
hide
Water-Year
Summary
instructions
and
information
- 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.
USGS Water-Year Summary 2024
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.
