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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
08075000 Brays Bayou at Houston, TX
LOCATION - Lat 29°41'49", long 95°24'43" referenced to North American Datum of 1927, Harris County, TX, Hydrologic Unit 12040104, near right bank at downstream side of Main Street Bridge in southwest Houston, 1.6 mi upstream from Harris Gully, and 11.6 mi upstream from Buffalo Bayou.
DRAINAGE AREA - 94.9 mi².
REVISIONS HISTORY - WSP 1732: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1936 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Oct. 1968 to Aug. 1998.
BIOCHEMICAL DATA: Oct. 1968 to Aug. 1998.
PESTICIDE DATA: Oct. 1968 to Aug. 1998.
GAGE - Water-stage recorder. Datum of gage is NAVD of 1988, 2001 adjustment; unadjusted for land-surface subsidence. Prior to Oct. 1, 2006, datum of gage 7.16 ft below NGVD of 1929, 1973 adjustment; unadjusted for land-surface subsidence (9.15 ft above current datum). Prior to June 20, 1936, nonrecording gage, and June 20, 1936, to Nov. 25, 1959, water-stage recorder at site 0.8 mi downstream at NVGD of 1929, 1973 adjustment. Satellite telemeter at station.
REMARKS - No known regulation or diversions. Low flow is sustained mostly from wastewater effluent. Gage height associated with historical peak discharge is referenced to datum then in use. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since 1911, 56.0 ft in June 1919 before channel rectification, former site, from information by engineer for city of Houston.
