21 Aug 2025

Dworshak’s “Skeleton Bay” flooded in key step toward regional energy growth

On the banks of the North Fork Clearwater River, a new chapter is being written for one of the Pacific Northwest’s most important hydropower resources. The U.S. Army Corps of Engineers (USACE) Walla Walla District, in partnership with the Bonneville Power Administration (BPA), has taken a key step toward expanding the Dworshak Dam powerhouse with a fourth generating unit.

4 Aug 2025

Lower Granite Lock and Dam marks 50 years on the Snake River

On July 10, 2025, the U.S. Army Corps of Engineers, Walla Walla District, celebrated the 3,200-feet-long Lower Granite Lock and Dam’s 50 years of service to the Pacific Northwest along with the generations of people who made it possible. Lower Granite Lock and Dam, located on the Snake River in southeastern Washington, includes a dam, navigation lock, powerhouse, fish ladder, and associated facilities. The project provides hydropower, navigation, flood risk management, fish and wildlife habitat, recreation, and incidental irrigation. The dam spans approximately 3,200 feet and has an effective height of 100 feet. It is a concrete gravity structure with an earthfill right abutment embankment.