USGS Water-Year Summary 2022
07328100 WASHITA RIVER AT ALEX, OK
LOCATION - Lat 34°55'33", long 97°46'25" referenced to North American Datum of 1927, in NW 1/4 sec.07, T.5 N., R.5 W., Grady County, OK, Hydrologic Unit 11130303, near right bank on downstream side of county road bridge, 1.0 mi north of Alex, 3.8 mi downstream from Winter Creek, and at mile 226.5.
DRAINAGE AREA - 4,768 mi² of which 12 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 1964 to September 1986, October 1988 to current year.
GAGE - Water-stage recorder. Datum of gage is 990.48 feet above NAVD88. Oct. 1, 1988 to Sept. 30, 2000, datum 5.00 ft higher. Prior to Oct. 1, 1988, datum 10.00 ft higher.
COOPERATION - Records furnished by Agricultural Research Service prior to January 1978.