US Army Corps of Engineers
Sacramento District Website

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 just south of San Juan Road to Gateway Oaks Drive. 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 will address these deficiencies.

Frequently Asked Questions

Reach A Project Map

Reach A Project Map (Click to enlarge)

Button to subscribe for construction & traffic email updates


Video - Informational Public Meeting at Swallows Nest neighborhood

Additional: Swallows Nest Public Meeting Question and Answer Session

Please note: These videos provide an accurate explanation of the Sacramento area levee system and the work being done to strengthen and improve them. The nature of large-scale construction is such that changes to original plans or timelines may occasionally need to be altered. While there have been minor changes to some of the projects mentioned here, the video content is still informative. You can find the most current information on our Corps Website:

Want to find out if work is being done near you? Check out Sacramento District's interactive map that shows what's happening, and where.

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