Whittier Narrows Dam Safety Modification Project
Montebello
Summary
The Army Corps will spend hundreds of millions starting this fall to armor the dam against catastrophic failure, protecting a million people downstream. Expect lane narrowing on Lincoln and Rosemead, trail closures, and the permanent closure of Rooks Road; a town hall is set for June 30.
At a glance
- Total mentions
- 2
- Last 30 days
- 1
Last discussed Jun 10, 2026.
Impact analysis
Hundreds of millions of dollars in federal investment; no direct city cost, though the city's Lincoln Boulevard grant project must be coordinated.
The roughly one million residents and $200 billion in infrastructure downstream of the dam, including all of Montebello.
Residents near the dam will face construction traffic, trail closures, and the permanent loss of Rooks Road as a cut-through.
Mentions & discussions (2)
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City Council - Jun 10, 2026
The Army Corps will spend hundreds of millions starting this fall to armor the dam against catastrophic failure, protecting a million people downstream. Expect lane narrowing on Lincoln and Rosemead, trail closures, and the permanent closure of Rooks Road; a town hall is set for June 30.
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