Natomas Reach A site preparation activities set to begin this November More Info

Banner - Natomas Basin Reach A Levee Improvements

Natomas Basin - Reach A

The U.S. Army Corps of Engineers (USACE), in partnership with the California Central Valley Flood Protection Board (CVFPB), California Department of Water Resources (DWR) and the Sacramento Area Flood Control Agency (SAFCA), will be constructing 3.5 miles of levee improvements along the Garden Highway levee from Farm Rd to Gateway Oaks Dr. This work is part of the American River Watershed Common Features - Natomas Basin project authorized by Congress in 2014.  

Geotechnical engineering analyses have shown that the levees are susceptible to seepage and many portions of the levee have significant landside slope stability and long-term operations and maintenance concerns. Upcoming levee improvements are expected to begin in 2022, and will address identified deficiencies by constructing an adjacent levee to widen the existing levee, installing seepage cutoff walls up to 145 feet deep, and constructing landside seepage berms. 

Public Engagements

Natomas Reach A Status Update Virtual Public Meeting
November 16, 2020

This meeting provided a status update on progress towards construction in Natomas's Reach A, which extends along Garden Highway from Gateway Oaks Dr to Farm Rd. 

For an orientation ahead of time, click here to watch a short (2 min) YouTube video of the project: 

View: Presentation Slides (PDF)

Frequently Asked Questions

Reach A Project Map

Reach A Project Map (Click to enlarge)

Natomas Levees Overview

Progress Update - Nov 2020

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Contact Information

For more information on Natomas Basin levee improvements, 
please contact us at the following:



Mailing Address:
U.S. Army Corps of Engineers,  Sacramento District
Natomas Basin project
1325 J Street, Room 1513
Sacramento, CA 95814