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Holmes Street Sedimentation Basin and Granada/Murrieta Protection and Enhancement Project (R3-4)
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| Web | link |
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| Progress | proposed |
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| Location Description | Livermore-Amador Valley |
This project will construct a sedimentation basin just upstream of Holmes Street and will include creation of 0.95 acres of wetlands as environmental mitigation. This project also includes levee construction and dedication of approximately 25 acres of land as 100-year floodplain park/open space to prevent development within floodplain. Lastly, the project will conduct approximately 3,340 feet of riparian enhancement along both banks of Arroyo Mocho from Holmes Street sedimentation basin to Stanley Blvd, including along levees. The project will also remove the existing Granada High School crossing, which is a potential fish barrier.
The purpose of this project is to curtail aggradation of Arroyo Mocho by trapping the sediment loads in a sediment basin, to protect existing development from 100-year flood event through levee construction, and provide connectivity between regional trails.
Recreation,
Flood Protection,
Fish Passage,
Flood Plains,
Habitat Protection,
Levees,
Water Supply,
Water Quality,
Barriers
Environmental and habitat protection and improvement,
Flood management,
Recreation and public access,
Wetlands enhancement and creation
Flood Protection & Stormwater Management
