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The U.S. Army Corps of Engineers Los Angeles District is scheduled to release a draft supplement to the master plan and environmental assessment Sept. 16 for Fullerton Dam. Check back here to access digital copies of the draft supplement, environmental assessment, map books detailing land classification changes, and an informational presentation. Read the news release HERE.

Fullerton Dam

Fullerton Dam and Reservoir is a multi-purpose structure along the Los Angeles River constructed by the U.S. Army Corps of Engineers in the 1940s. Its primary purpose is flood-risk management, but it also provides environmental, cultural and recreational resources for Orange County citizens and the nation as a whole. This 130-acre project area is in Orange County on Fullerton Creek.

Fullerton Dam Master Plan and Environmental Assessment Drafts

The U.S. Army Corps of Engineers Los Angeles District and Regional Planning and Environmental Center will be seeking public comments on the draft supplement to the 2011 Fullerton Dam Master Plan. This draft is a supplement to the 2011 Fullerton Dam Master Plan and proposes updated classifications to eight acres of federal lands within the Fullerton Dam Flood Control Basin. All members of the public will be encouraged to submit written comments and suggestions by Oct. 30, 2026.

During the upcoming comment period, a presentation outlining the changes, the map book showing proposed land classification and associated changes to previous land classifications, and the revised Master Plan and Environmental Assessment will linked on this webpage. Please keep an eye out here for updates!

A presentation outlining the changes, the map book showing proposed land classification and associated changes to previous land classifications, and the draft supplement to the master plan and environmental assessment are scheduled to be posted to this webpage Sept. 16, 2026. 

Comments must be submitted in writing by Oct. 30, 2026, and can be sent via email or physical mail. USACE will accept written comments in any standard format (such as an email message or a physical letter). Please clearly specify “Fullerton Dam Master Plan Supplement” in your submission.

By Email:
splops@usace.army.mil

By Mail:
U.S. Army Corps of Engineers Los Angeles District
Operations Division - Fullerton Dam
Attn: Master Plan Project Manager (Mylene M. Guron)
645 Durfee Ave, Bldg. #2
South El Monte, CA 91733

Read the full news release HERE.

Contacts

 
Operations Division:

Email Operations Division
213-452-3294

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