USGS Water-Year Summary for Site 08072500

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

08072500 Barker Reservoir near Addicks, TX

LOCATION - Lat 29°46'11", long 95°38'49" referenced to North American Datum of 1927, Harris County, TX, Hydrologic Unit 12040104,

At left bank at dam on Buffalo Bayou, 45 ft upstream from reservoir outlet works, 1,160 ft upstream from Addicks-Howell county road, 1.1 mi south of Addicks, and 1.2 mi upstream from South Mayde Creek. Stilling well shelter abandoned after Hurricane Harvey and new shelter ( 2 X 2.5 X5 ft metal enclosure) sits atop the southeast corner of grated platform above the dam's outflow gates. New conduit run to radar and orifice in 2018 WY.

DRAINAGE AREA - 128 mi². Prior to Aug. 1977, 134 mi². Basin boundary change due to relocation of drainage ditches. During extreme floods, basin may receive and/or lose runoff due to basin interchange.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Aug. 1945 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: June 1978 to Sept. 1981. BIOCHEMICAL DATA: June 1978 to Sept. 1981.

GAGE - Water-stage recorder. Datum of gage is NAVD 1988, 2001 adjustment. Prior to Oct. 1, 2008, datum of gage was NGVD of 1929, 1973 adjustment; unadjusted for land-surface subsidence since 1973 (2.31 ft above current datum). Prior to Oct. 1, 1980, datum of gage was 0.33 ft below NGVD of 1929, unadjusted for land-surface subsidence (1.98 ft above current datum). Satellite telemeter at station.

COOPERATION - The capacity table, furnished by the U.S. Army Corps of Engineers, is based on extensive releveling survey made in 2001 using NAVD of 1988, 2001 adjustment as base.

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 71,900 ft long. The dam was completed Feb. 3, 1946, but was used as early as the spring of 1945 for flood control. The reservoir is operated for flood protection for the city of Houston. The controlled outlet works consist of five concrete conduits, 9 x 7 ft wide, each controlled by a vertical slide gate. Data regarding the dam are given in the following table:

                                                                              Elevation (feet)
Top of dam............................................................          113.1
Ground elevation at ends of dam.......................................          104.0
Design flood..........................................................          108.0
Crest of spillway (invert)............................................           70.2