USGS Water-Year Summary for Site 08144500

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	Available Parameters
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

08144500 San Saba River at Menard, TX

LOCATION - Lat 30°55'08", long 99°47'07" referenced to North American Datum of 1927, Menard County, TX, Hydrologic Unit 12090109, at downstream side of bridge on U.S. Highway 83 in Menard, 1.1 mi downstream from Las Moras Creek, 1.9 mi upstream from Volkmann Draw, and 116.3 mi upstream from mouth.

DRAINAGE AREA - 1,135 mi² of which 7 mi² probably is noncontributing.

REVISIONS HISTORY - WDR TX-81-3: Drainage area. WSP 1512: 1918-20, 1922-25, 1926(M), 1927-32, 1934(M), 1936, 1938(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct. 1915 to Sept. 1993, Oct. 1997 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Nov. 1964 to July 1967. BIOCHEMICAL DATA: Nov. 1964 to July 1967.

GAGE - Water-stage recorder. Datum of gage is 1,863.36ft above NAVD88 as determined by GNSS survey. Prior to January 18, 2024, the datum of gage was 1,863.05ft above NGVD of 1929. Sept. 14, 1915, to Mar. 12, 1924, nonrecording gage at site 635 ft downstream at datum 2.20 ft lower. Mar. 13, 1924, to Feb. 21, 1939, nonrecording gage at site 1,000 ft upstream at datum 2.00 ft higher. Feb. 22, 1939, to Jan. 25, 1940, nonrecording gage at present site and datum. Jan. 26, 1940, to Sept. 19, 1957, water-stage recorder at site 240 ft to right at present datum. Feb. 8, 1962, to Jan. 22, 1963, nonrecording gage at site 600 ft downstream at present datum. Radio telemeter at station. Satellite telemeter at station.

COOPERATION - Lower Colorado River Authority provides operation and maintenance of the gage and verification of stage-discharge relation at low stages. U.S. Geological Survey maintains stage-discharge relation at medium to high stages and computes and publishes streamflow record.

REMARKS - Since about 1890, low flow regulated during irrigation season by diversions to Noyes Canal at Menard (discontinued station 08144000, reactivated July 24, 2015 as station 08143990) about 4.5mi upstream and diversions by pumping at several locations upstream. No flow at times.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1880, 23.3 ft, June 6, 1899, present site and datum, from information by local resident.