Natomas Levee project
Natomas Levee Project—U.S. Army Corps of Engineers (Update October 2018)
Goal: Complete levee improvements started by SAFCA/State to provide Natomas Basin at least 200-year flood protection
Project Status: Project is fully authorized by Congress (2014 Water Resources and Reform Development Act). Appropriations are made on an annual basis
Cost Sharing Partners: SAFCA (local) and Central Valley Flood Projection Board (State)
Operation and Maintenance Responsibility: Reclamation District No. 1000
Construction Status: See Construction Phasing Map
Reach I (American River Gateway Oaks to Northgate): Phase 1 contract has been re-awarded July 2018 with work under I-5 to be constructed fall of 2018 (some traffic impacts). Cutoff wall construction along Garden Highway in 2019 with significant traffic impacts.
Reach H (NEMDC/Steelhead Creek from American River to Dry Creek): Contract awarded, but bid protest has delayed construction. Anticipate new award by end of 2018 with construction commencing in 2019 and completion in 2020. Cutoff wall in levee and landside improvements; will require temporarily degrading (lowering) existing levee for construction.
Reach D (Natomas Cross Canal—northern boundary of Natomas): Contract award May 2018. Contractor mobilized to site mid-August and commenced clearing and grubbing operations along the Vestal Drain alignment in September 2018. Contractor has now commenced excavation of the new Vestal Drain south of the existing Natomas Water Company’s irrigation canal. Removed material is being stockpiled adjacent to the existing Vestal Drain near the levee. Remainder of work to be completed in 2019 including demolition and reconstruction of the RD 1000 Pumping Plant 4. Given the remote location, there are minimal impacts to traffic or properties. Project includes re-locate Vestal Drain (ag drain on landside of levee); removal of existing abandoned pipes through levee; reconstruction of RD 1000 Pumping Plant No. 4
Reaches A, B, E, F and G—Improvements are currently in various phases of design to identify necessary improvements, right of way needs, and identify utility relocations necessary. See Construction Phasing Map for anticipated construction schedule. Information on construction details and schedule will be provided when available