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USGS 08117300 Brazos Rv at GIWW Flood Gates nr Freeport, TX

PROVISIONAL DATA SUBJECT TO REVISION

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Funding for this site is provided by the cooperators / programs below:
Click to go to the Corps of Engineers, Galveston District web page

Corps of Engineers, Galveston District
Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.
This station managed by the Houston Field Unit.

Available Parameters Available Period
  
2023-01-19  2026-06-19
2023-01-19  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2023-06-20  2026-06-19
2026-02-19  2026-06-19
2023-06-20  2026-06-19
2026-02-19  2026-06-19
2026-02-19  2026-06-19
2026-02-19  2026-06-19
2026-02-19  2026-06-19







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius, East Lock
Most recent instantaneous value: 28.5 06-19-2026   21:40 CDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, East Lock
Most recent instantaneous value: 1430 06-19-2026   21:40 CDT
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Salinity, water, unfiltered, parts per thousand, East Lock
Most recent instantaneous value: 0.7 06-19-2026   21:40 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, Brazos River
Most recent instantaneous value: 1.85 06-19-2026   21:30 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, East Lock
Most recent instantaneous value: 1.52 06-19-2026   21:40 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, East River
Most recent instantaneous value: 1.62 06-19-2026   21:40 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, West Lock
Most recent instantaneous value: 1.48 06-19-2026   21:45 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, West River
Most recent instantaneous value: 1.30 06-19-2026   21:45 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, [East Difference]
Most recent instantaneous value: -0.10 06-19-2026   21:40 CDT
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Estuary or ocean water surface elevation above NAVD 1988, feet, [West Difference]
Most recent instantaneous value: 0.18 06-19-2026   21:45 CDT
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Water velocity reading from field sensor, feet per second, Brazos River
Most recent instantaneous value: 4.01 06-19-2026   21:30 CDT
Graph of Water velocity reading from field sensor, feet per second

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Water velocity reading from field sensor, feet per second, East Lock
Most recent instantaneous value: -2.98 06-19-2026   21:40 CDT
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Water velocity reading from field sensor, feet per second, West Lock
Most recent instantaneous value: -2.12 06-19-2026   21:45 CDT
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Mean water velocity for discharge computation, miles per hour, [East Lock in MPH]
Most recent instantaneous value: -2.03 06-19-2026   21:40 CDT
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Mean water velocity for discharge computation, miles per hour, [River in MPH]
Most recent instantaneous value: 2.73 06-19-2026   21:30 CDT
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Mean water velocity for discharge computation, miles per hour, [West Lock in MPH]
Most recent instantaneous value: -1.44 06-19-2026   21:45 CDT
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