USGS Water-Year Summary 2024

07231000 LITTLE RIVER NEAR SASAKWA, OK

LOCATION - Lat 34°57'55", long 96°30'44" referenced to North American Datum of 1927, in NE 1/4 sec.25, T.6 N., R.7 E., Seminole County, OK, Hydrologic Unit 11090203, near right abutment on downstream side of State Highway 56 bridge, 1.6 mi north of Sasakwa, 15.1 mi downstream from Salt Creek, and at mile 17.7.

DRAINAGE AREA - 888 mi². 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.

REVISIONS HISTORY - WSP 1117: Drainage area. WDR 2012: Drainage Area

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1942 to current year. Monthly discharge only for some periods, published in WSP 1311.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 731.78 above NAVD of 1988 determined by GNSS Level II Survey using Alltera network with RTK Trimble R-10 tied to RM-5 by USGS Personnel on 07-29-2019. Prior to 07-29-2019 Datum of gage was 731.76 ft above NGVD of 1929. From Jan. 25, 1996 to Oct.1, 1979, gage at site 6.4 miles upstream at datum 12.58 ft higher. From Sept. 30,1979 to Apr.11, 1946, gage at site 6.4 miles upstream at datum 17.58 ft higher. Prior to Apr. 11, 1946, nonrecording gage at site 6.4 miles upstream at datum 12.58 ft higher.

REMARKS -

10/01/2022 - 09/30/2023, record fair.

Flow regulated by Lake Thunderbird (station 07229900) 78.7 mi upstream since March 1965.

Quality of data for other periods can be obtained by contacting the Oklahoma-Texas Water Science Center.

EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge 44,600 ft³/s, May 11, 1950. Maximum gage height 33.48 ft, May 11, 1950.

AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - Water year 1943-64, 410 ft³/s.