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Army Corps outlines Whittier Narrows dam upgrade, warns of multi-year Lincoln Avenue impacts
Summary
The U.S. Army Corps of Engineers briefed the Montebello City Council on planned safety upgrades at Whittier Narrows Dam, describing a multiyear construction schedule that will raise and shift Lincoln Avenue, affect trails and recreation, and require extended coordination with the city and utility owners.
The U.S. Army Corps of Engineers presented a dam-safety project for Whittier Narrows on Jan. 22, telling the Montebello City Council the work will include major construction on Lincoln Avenue, multi-year preconstruction and construction periods, and temporary impacts to trails, traffic and nearby recreation areas.
Project manager George Sonny of the U.S. Army Corps of Engineers said Whittier Narrows "is about a 3 mile long dam" that protects roughly 1,000,000 people downstream and is normally dry but can impound large flows during major storms. He said the corps has identified erosion risks under the dam foundation and potential overtopping…
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