USGS Water-Year Summary 2020
07359610 CADDO RIVER NEAR CADDO GAP, AR
LOCATION - Lat 34°22'58", long 93°36'22" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 sec.19, T.4 S., R.24 W., Montgomery County, AR, Hydrologic Unit 08040102, on downstream side of bridge on State Hwy 240, and 1.3 mi southeast of Caddo Gap.
DRAINAGE AREA - 136 mi².
PERIOD OF RECORD - Oct 1988 to current year. Results of discharge measurements Apr 1975 to Sep 1978 are contained in reports of U.S. Army Corps of Engineers.
GAGE - Water-stage recorder. Datum of gage is 577.81 ft above NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 57,900 ft³/s Jun 11, 2010 based on slope-area indirect measurement of peak flow.