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Water-Year Summary for Site 08043000

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Available Parameters
00054 Reservoir storage(Max.,Min.,Mean)  
62614 Elevation, lake/res, NGVD29(Max.,Min.,Mean)  
62615 Elevation, lake/res, NAVD88(Mean)  

Water year 2020: 2020-10-01 to 2021-09-30
 

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USGS Water-Year Summary 2020
08043000 Bridgeport Reservoir above Bridgeport, TX
LOCATION - Lat 33°13'22", long 97°49'54" referenced to North American Datum of 1927, Wise County, TX, Hydrologic Unit 12030101, in brick valve house on upstream side and near left end of dam on West Fork Trinity River, 4.6 mi west of Bridgeport, 13.0 mi upstream from Big Sandy Creek and at mile 626.
DRAINAGE AREA - 1,111 mi².
REVISIONS HISTORY - WSP 1922: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Apr. 1932 to current year. Prior to Oct. 1950, month end figures only. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Jan. 1964 to May 1984.
GAGE - Water-stage recorder. Datum of gage is NAVD of 1988. Prior to Oct. 1, 2016, datum was NGVD of 1929 at 0.44 ft higher than current datum. Prior to Jan. 12, 1988, nonrecording gages at various sites in vicinity of present gage at datum then in use. Satellite telemeter at station.
COOPERATION - Capacity Table No. 6, based on a volumetric survey by the Texas Water Development Board in Apr. 2000, was provided by the Tarrant Regional Water District and used beginning Oct. 2003. Capacity Table No. 7, based on a volumetric survey by the Texas Water Development Board in Nov. 2010, was placed into use beginning Oct. 1, 2013.
REMARKS - Some records listed in the "Period of Record" for surface water and water quality may not be available electronically. The reservoir is formed by a rolled earthfill dam 2,040 ft long. The dam was completed in Dec. 1931 and storage began Apr. 1, 1932. The original dam was 1,900 ft long, but was lengthened to 2,040 ft in 1971-72. The original service spillway was eliminated during construction (1971-72), and a new spillway with approach and discharge channels was built through natural ground 2,800 ft from the left end of dam. The new spillway is 90 ft wide and has eight vertical lift gates that are 11.25 x 22-ft. The controlled outlet works consist of a 48-in diameter and an 18-in diameter pipe encased in a concrete conduit extending through the dam. In addition, a controlled 60-in diameter steel pipe extends through the service spillway wall to the spillway discharge basin. The dam is owned by the Tarrant Regional Water District. For elevations of outlet works, see table below. Conservation pool storage is 366,240 acre-ft. Data regarding the dam are given in the following table:
                                                                         Elevation (feet)
Top of dam............................................................          874.0
Crest of spillway.....................................................          866.0
Top of gates..........................................................          842.0
Top of conservation pool..............................................          836.0
Sill of gates.........................................................          820.0
Lowest value outlet (invert)..........................................          751.4
EXTREMES FOR PERIOD OF RECORD - Maximum contents observed, 491,700 acre-ft, May 5, 1990, elevation, 844.36 ft; minimum contents observed since first appreciable storage in 1935, 7,170 acre-ft, Oct. 12-16, 1956.