USGS Water-Year Summary 2021
07336820 RED RIVER NEAR DE KALB, TX
LOCATION - Lat 33°41'02", long 94°41'39" referenced to North American Datum of 1927, Bowie County, TX, Hydrologic Unit 11140106, on right bank at downstream side of bridge on U.S. Highway 259, 4.8 mi upstream from North Mill Creek, 13 mi north of De Kalb, and at mile 556.9.
DRAINAGE AREA - 47,268 mi² of which 7,928 mi² probably is noncontributing. from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.
- WDR 2012: Drainage area.
PERIOD OF RECORD - October 1968 to September 1998, October 2004 to present. Records for June 1, 2002 through September 30, 2004, previously available on NWIS Web are unreliable and should not be used.
GAGE - Water-stage recorder. Datum of gage is 302.92 ft above NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge since 1957, 205,000 ft³/s June 1957 (gage height, 32.2 ft), from rating curve extended above 186,500 ft³/s. The greatest flood since 1936 occurred in February 1938, stage unknown.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 299,000 ft³/s, June 1, 2015. Maximum gage height, 34.89 ft, June 1, 2015.