Whittier Narrows Dam Flood Control Project


SCH Number
Lead Agency
United States Army, Army Corps of Engineers (USACE)
Document Title
Whittier Narrows Dam Flood Control Project
Document Type
EIS - Draft EIS
Document Description
Note: Review Per Lead The Corps is proposing risk management plans to reduce the potential for and consequences of catastrophic flooding resulting from failure of the Whittier Narrows Dam during very rare flood events. These risk management plans include structural modifications to the dame to eliminate or minimize potential modes of dam failure, and non-structural measures to reduce the consequence of rare flood events. Risk is defined as a measure of the probability and severity of undesirable consequences or outcomes. The purpose of the Whittier Narrows DSM Project is to reduce the incremental risk - the difference between consequences associated with dam failure and the consequences associated with extreme discharges in which the dam did not fail - to the downstream public to tolerable levels.

Contact Information

Deborah Lamb
Agency Name
U.S. Army Corps of Engineers
Contact Types
Lead/Public Agency


Los Angeles
State Highways
SR 60, I-605
Other Location Info
boundary of San Gabriel Valley in Sou

Notice of Completion

Review Period Start
Review Period End
Development Types
Other (Dam safety)
Local Actions
Dam safety
Reviewing Agencies
California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Lands Commission (SLC), Department of Water Resources, Office of Emergency Services, California, Resources Agency, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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