Improvements from Senate Bill 2: Instream Flow requirements

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Improvements from Senate Bill 2Instream Flow
requirements

• Requires TPWD, TWDB, TCEQ to develop procedures
  for defining instream flow requirements
• Implemented on priority study regions by 2010
• Based on fish habitat analysis

Trinity
Brazos
Sabine
Guadalupe
San Antonio
Priority Study Regions
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Process Flowchart
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Study Area (Guadalupe river near Seguin, TX)
1/2 meter Digital Ortho Photography
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Depth Sounder (Echo Sounder)
The electronic depth sounder operates in a
similar way to radar It sends out an electronic
pulse which echoes back from the bed. The echo is
timed electronically and transposed into a
reading of the depth of water.
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Acoustic Doppler Current Profiler
Provides full profiles of water current speed and
direction in the ocean, rivers, and lakes. Also
used for discharge, scour and river bed
topography.
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Measurement System
GPS Antenna
Computer and power setup
Depth Sounder
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Channel Bed Soundings
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Bathymetry from Side-Scanning Sonar
Channel demo