USGS Water-Year Summary for Site 08141000

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	Available Parameters
	62614 Elevation, lake/res, NGVD29(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

08141000 Hords Creek Lake near Valera, TX

LOCATION - Lat 31°49'58", long 99°33'38" referenced to North American Datum of 1927, Coleman County, TX, Hydrologic Unit 12090108, at outlet-works structure near right end of dam on Hords Creek, 5.6 mi north of Valera, and 8.8 mi west of Coleman.

DRAINAGE AREA - 48 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Apr. 1948 to Sept. 2000 (U.S. Army Corps of Engineers furnished contents), Oct. 2000 to Sept. 2002 (contents), Oct. 2002 to current year. Prior to Oct. 1970, published as "Hords Creek Reservoir". PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Mar. 1964 to Oct. 1979. BIOCHEMICAL DATA: Mar. 1964 to Oct. 1973.

GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. To get lake elevation values in NAVD88 add 0.21 ft. Satellite telemeter at station.

COOPERATION - U.S. Army Corps of Engineers (USACE)

REMARKS - The lake is formed by a rolled earthfill dam 6,800 ft long, including spillway. Deliberate impoundment of water began Apr. 7, 1948, and the dam was completed in June 1948. The spillway is an excavated channel through natural ground, 500 ft wide, located about 600 ft from the right end of dam. The spillway consists of three concrete conduits; two controlled by 5.0- by 6.0-foot slide gates, and a third uncontrolled ogee spillway 4.0 ft wide and 19.5 ft high. The dam is owned by the U.S. Army Corps of Engineers. The lake is operated for flood control and municipal water supply for the city of Coleman, records of diversions can be obtained from the U.S. Army Corps of Engineers. The capacity table of Aug. 1974 was based on a sedimentation survey made in 1948. Flow is affected at times by discharge from the flood-detention pool of one floodwater-retarding structure with a detention capacity of 1,370 acre-ft. This structure controls runoff from 6.82 mi² in the Jim Ned Creek drainage basin. Conservation pool storage is 8,112 acre-ft. Data regarding the dam are given in the following table. The USGS is not responsible for errors in datum or elevations provided by other entities.

                                                                              Elevation (feet)
Top of dam............................................................         1,939.0
Design flood..........................................................         1,933.6
Crest of spillway.....................................................         1,920.0
Crest of spillway (top of conservation pool)..........................         1,900.0
Lowest gated outlet (invert)..........................................         1,856.0

Water-quality records available from Jan. 1981 to Aug. 1982 were published separately as: Site ID Site name 314959099333701 Hords Ck Lk Site AC nr Valera, TX 315002099341301 Hords Ck Lk Site CC nr Valera, TX 315020099344601 Hords Ck Lk Site DC nr Valera, TX 315021099341501 Hords Ck Lk Site BC nr Valera, TX

EXTREMES FOR PERIOD OF RECORD - Apr. 1948 to Sept. 2002: Maximum contents, 12,790 acre-ft, May 1, 1956; minimum contents since first appreciable storage in June 1951, 1,550 acre-ft, Sept. 2, 1984; Apr. 1948 to current year: Maximum elevation, 1907.31 ft, Mar. 4, 1992; minimum elevation, 1,878.01 ft, Sept. 2, 1984.