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Project: Lookout Slough Levee Setback

Description: Per Governors Water Action Plan (CWAP), increase flood protection in the Delta and Statewide. The Lookout Slough Levee Setback (LSLS) Project is a 3-mile long flood risk reduction portion of a multi-benefit project known as the Lookout Slough Tidal Habitat Restoration and Flood Improvement (LSTHRFI) Project to restore delta smelt habitat in the lower Yolo Bypass. The LSLS portion of the project will be funded by Proposition 1 and 68. The remaining portion of the LSTHRFI project will be funded by the DWR Fish Restoration Program associated with the operation of the State Water Project (SWP), in accordance with USFWS 2008 Delta Smelt Biological Opinion. The SWP portion of the LSTHRFI project will include constructing the levee setback to the current authorized height known as the 1957 Water Surface Elevation (WSE). The Proposition 1 and 68 funds will construct additional levee height to raise the level of flood protection to the higher 100-year plus 1 foot WSE, to meet the objectives of the Central Valley Flood Protection Plan. In addition, the Lookout Slough Levee Setback project will construct alterations to the existing levee system to facilitate additional flood routing capability through the Lower Yolo Bypass out to Suisun Bay. The LSLS project will have a budget of $23,900,000. Total project budget includes State support costs for project implementation.

Reference Number: 3860-PM-167

Implemented By: Department of Water Resources


Type: Infrastructure Improvement, Other

Total Cost: $23,900,000.00

Project Status: Project Implementation

On Time?: Yes    Within Scope?: Yes    Within Budget?: Yes

Estimated Completion: 6/30/2023    Actual Completion:

Associated Counties: Solano, Yolo, Multiple

Project Benefits a Disadvantaged Community (or SDAC): No Located In Severely Disadvantaged Community: No

Contribution SourcesContribution DateContribution Amount
Prop. 1, Reduce the risk of levee failure and flood in the Delta9/3/2019$20,900,000.00
Prop. 68, Multibenefit Public Safety Improvements and Fish/Wildlife Enhancement8/4/2020$3,000,000.00

Project MetricMetric TopicQuantityUnit
Infrastructure ImprovementLevee Repair, Strengthen, Raised3miles of levee repaired/strengthened

Water Action Plan Target

Increase Flood ProtectionAction Description


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