Whittier Narrows Dam Flood Control Project

Summary

SCH Number
2018124003
Lead Agency
U.S. Army Corps of Engineers
Document Title
Whittier Narrows Dam Flood Control Project
Document Type
EIS - Draft EIS
Received

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
U.S. Army Corps of Engineers
915 Wilshire Boulevard
Los Angeles, CA 90017

(213) 452-3798

Location

Counties
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 Type
Other (Dam safety)
Local Action
Other Action Other Action: Dam safety
Reviewing Agencies
California Department of Parks and Recreation California Highway Patrol Caltrans, District 7 Department of Conservation Department of Fish and Wildlife, Region 5 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Regional Water Quality Control Board, Region 4 Resources Agency San Gabriel & Lower Los Angeles Rivers & Mountains Conservancy State Lands Commission 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
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