USGS Water-Year Summary 2023
08066000 Trinity River at Riverside, TX
LOCATION - Lat 30°51'33", long 95°23'55" referenced to North American Datum of 1927, Walker County, TX, Hydrologic Unit 12030202, at the right upstream end of old truss bridge on State Highway 19, 1,200 ft. upstream from the Missouri Pacific Railroad bridge, 0.5 miles north of riverside, Walker County, 0.75 miles downstream from Harmon Creek, 12 miles upstream from White Rock Creek, and at river mile 182.
DRAINAGE AREA - 15,589 mi². (rev 1962) From Texas Water Comm. Cir. No. 63-01.
REVISIONS HISTORY - WSP 828: 1935 (yearly mean only). WSP 1148: Drainage area. WSP 1312: 1926-27, WSP 1512: 1924, 1930, 1934. See also Period of Record.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1903 to Dec. 1906 (monthly discharge only, published in WSP 1312), Oct. 1923 to Sep. 1960 (daily mean discharge). Oct. 2008 to current (daily mean gage height). Records of daily discharge for Jan. 1903 to Dec. 1906, published in WSP 99, 132, 174, and 210 have been found to be unreliable and should not be used. Gage height records collected in this vicinity since 1903 are contained in reports of U.S. Weather Bureau.
GAGE - Water-stage recorder. Datum of gage is NAVD 1988. Prior to Oct. 1, 2008, datum of gage NGVD 1929 (0.43 ft above current datum).
At some time in the past, datum of gage was 89.86 ft above NGVD 1929.