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Hydropower Dams in the Columbia River Basin

Sector: Hydro • Location: Portland, Eugene, Salem, Medford, Spokane, Lewiston, Northwestern Montana, Oregon, Washington, Idaho, Montana, United States

Source: USACE Northwestern Division (.mil)

Project
Operational

This project involves multiple hydropower dams in the Columbia River Basin operated by the U.S. Army Corps of Engineers. These dams generate significant amounts of electricity, providing nearly 60% of the Northwest's electricity and almost 90% of its renewable energy. The dams can generate up to 14,680 megawatts of electricity, enough to power over 11.6 million homes. The project includes dams suc

Status
Under Construction
Sector
Hydro, Power Generation (CCGT), Seaport, Water Supply and Storage, Government
Location
Portland, Eugene, Salem, Medford, Spokane, Lewiston, Northwestern Montana, Oregon, Washington, Idaho, Montana, United States of America
Updated
22 Jul 2026
Source
USACE Northwestern Division (.mil)

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Project Information

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The project “Hydropower Dams in the Columbia River Basin” is an infrastructure initiative in the Hydro sector, located in Portland, Eugene, Salem, Medford, Spokane, Lewiston, Northwestern Montana, Oregon, Washington, Idaho, Montana, United States. Taiyo aggregates data on it from USACE Northwestern Division (.mil).

Participants

Sponsoring Agency

Company

Status

Original status

operational

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

This project involves multiple hydropower dams in the Columbia River Basin operated by the U.S. Army Corps of Engineers. These dams generate significant amounts of electricity, providing nearly 60% of the Northwest's electricity and almost 90% of its renewable energy. The dams can generate up to 14,680 megawatts of electricity, enough to power over 11.6 million homes. The project includes dams such as Bonneville Dam, The Dalles, John Day, Lost Creek Dam, Albeni Falls Dam, Chief Joseph Dam, McNary, Ice Harbor, Lower Monumental, Little Goose, Lower Granite, Dworshak Dam, and Libby Dam.

Original sector

Energy

Location

Country

United States of America (USA)

State

Oregon, Washington, Idaho, Montana

City

Portland, Eugene, Salem, Medford, Spokane, Lewiston, Northwestern Montana

Source

Source

USACE Northwestern Division (.mil)

URL

More Details

Record type

Project

Sector

Hydro, Power Generation (CCGT), Seaport, Water Supply and Storage, Government

Article published date

2025-11-27

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