Yolo Flyway Farms Restoration Project

The Yolo Flyway Farms Restoration Project is located at the southern end of the Yolo Bypass near the Cache Slough Complex and is within the jurisdiction of the Central Valley Flood Protection Board (CVFPB).

The Reynier Fund, LLC is undertaking this Project to restore tidal interaction to the property to enhance and create habitat for special status fish. To meet this goal, the four objectives of the Project would be to:

  1. Enhance regional food web productivity in support of delta smelt recovery
  2. Provide rearing habitats for out-migrating salmonids
  3. Support a broad range of other aquatic and wetland-dependent species, including Sacramento splittail
  4. Provide ecosystem functions associated with the combination of Delta freshwater aquatic/tidal marsh/floodplain/seasonal wetland/lowland grassland interfaces that existed historically

To meet the project objectives, cbec developed a design to optimize connectivity to tidal fluctuations through swale and wetland terrace excavation and selective agricultural berm leveling. cbec developed a design to most effectively disperse water from tidal fluctuation and periodic flow events in the adjacent Tule Canal across the property, maximizing inundation and residency time. cbec developed a 2D hydrodynamic model (TUFLOW) to simulate a range flows in Tule Canal and assess site inundation resulting from five levee breach alternatives.  Construction documents were developed based on the most effective alternative. cbec will provide survey, observation and quality control services during the construction phase.

 

Yolo Flyway Farms Restoration Project | Levee Breach

Not all levee breaches are cause for concern! Here is a time-lapse of just over an hour of grading activities to complete an intentional breach at Yolo Flyway Farms. Yolo Flyway Farms is a tidal wetland restoration project in the Southern end of the Yolo Bypass that cbec has been working on for several years. The restoration project will allow the land to tidally connect to the Toe Drain, a narrow channel that connects the Yolo Bypass with the Sacramento River. Intended goals of intentional breaches are for protecting valuable areas, draining flooded areas, or giving back land to nature. In this case on the Yolo Flyway Farms Restoration Project, the goal is to restore tidal interaction to enhance and create habitat for special status fish. To meet the project objectives, cbec developed a design to optimize connectivity to tidal fluctuations, developed a 2D hydrodynamic model to simulate alternatives, and construction documents based on the most effective alternative. In addition, cbec is currently providing surveying, observation and quality control services during the construction phase. To keep up to date on this joint effort by the California Department of Water Resources and Reynier Fund, keep an on #cbecFlywayFarms

Posted by cbec eco-engineering on Friday, 18 January 2019

.

.

.

.

 

Details

River/Watershed: Sacramento River
Project: 14-1009