Over 17 miles of stream restoration reestablished a resilient ecosystem for Katy Prairie
Katy Prairie Stream Mitigation Bank is the first stream mitigation bank in Texas and one of the largest in the world. Working closely with the client, the USACE Galveston District, and other permitting agencies, we provided ecosystem restoration and stream design services, developing the mitigation banking instrument.
Our work included a comprehensive site and watershed assessment to ascertain the processes driving flood risk, bank erosion, ecosystem restoration needs and opportunities, and the potential to expand and enhance adjacent wetlands. We developed a comprehensive design to provide flood risk management, and we incorporated a variety of functional elements aimed at supporting local flora and fauna.
Analyses of adjacent sites revealed the presence of kettle wetlands—sand features ideal for supporting a variety of functional habitat types. We provided on-site construction support, engineering plan interpretation, and 3D surface generation for the construction of the channels and dozens of kettle wetlands. We are also providing ongoing monitoring services for the project.
While working, the project was expanded from 3 miles to over 17 miles of stream restoration, designed within three months using multiple teams working side-by-side. After restoration? The stream area was subject to a 500-year flood with minimal damage and erosion.
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