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Whittier Narrows Dam Safety Project

Sector: Hydro • Location: Los Angeles, California, United States

Source: Army.mil

Project
Planned

Dam safety project to mitigate life-safety risks by modifying the Whittier Narrows Dam to prevent erosion and overtopping. The dam reduces flood risk for approximately 1 million residents in the greater Los Angeles area. Construction contract awarded to begin preconstruction services in March 2025, with construction starting in late 2026 and expected completion in 2032.

Status
Prospective
Sector
Hydro, Water Supply and Storage, Government
Location
Los Angeles, California, United States of America
Updated
22 Jul 2026
Source
Army.mil

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Project Information

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The project “Whittier Narrows Dam Safety Project” is an infrastructure initiative in the Hydro sector, located in Los Angeles, California, United States. Taiyo aggregates data on it from Army.mil.

Participants

Sponsoring Agency

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

Dam safety project to mitigate life-safety risks by modifying the Whittier Narrows Dam to prevent erosion and overtopping. The dam reduces flood risk for approximately 1 million residents in the greater Los Angeles area. Construction contract awarded to begin preconstruction services in March 2025, with construction starting in late 2026 and expected completion in 2032.

Original sector

Built Sector

Location

Country

United States of America (USA)

State

California

City

Los Angeles

Source

Source

Army.mil

URL

More Details

Record type

Project

Sector

Hydro, Water Supply and Storage, Government

Article published date

2025-12-06

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