The Upper Yuba River Levee Improvement Project will complete a levee system designed to provide 200-year flood protection for 40,000 residents in South Yuba County [map].

The need for additional improvements on Yuba River levees was only recently identified. Those improvements include seepage remediation [cutoff wall and seepage berm], corrections to slope geometry, and erosion protection. Environmental review for the project area is underway, with construction expected to begin this year. Construction is expected to be completed in 2010/mid-2011 [see schedule].

The project is expected to cost $68 million. Of that amount, $47.5 million is being paid for by the State Department of Water Resources. As part of its funding agreement with the state, TRLIA must provide a 30 percent cost share for the $68 million project, or just more than $20 million. The local share will be covered through reimbursement and credit from the state for prior construction work, and funding from prior development agreements.

The improvements are projects of the Three Rivers Levee Improvement Authority [Who We Are].

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