USGS Water-Year Summary 2020
07340300 COSSATOT RIVER NEAR VANDERVOORT, AR
LOCATION - Lat 34°22'48", long 94°14'11" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 sec.30, T.4 S., R.30 W., Polk County, AR, Hydrologic Unit 11140109, on right bank 200 ft upstream from bridge on State Hwy 246, 0.3 mi downstream from Brushy Creek, 3.2 mi upstream from Flat Creek, and 7.5 mi east of Vandervoort.
DRAINAGE AREA - 89.6 mi².
- WDR Ark. 1978: Drainage area.
PERIOD OF RECORD - Jun 1967 to current year.
GAGE - Water-stage recorder. Datum of gage is 771.88 ft above NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 1961, reached a stage of about 23.0 ft, from information by local resident; discharge about 48,000 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum peak stage 20.76 ft May 6, 2009 from floodmark.
PERIOD OF RECORD - Water years 1967 to 1968 and 1986 to current year.