Portland District operates 13 dams in the Willamette River Basin. The dams, authorized by the Flood Control Act of 1936, contribute to a water resource management system that provides flood risk management, power generation, water quality improvement, irrigation, fish and wildlife habitat and recreation on the Willamette River and many of its tributaries.
The Corps found disposal sites at various dams within the valley that were from original construction and operations in the early 1950s. The Corps has a responsibility to clean up disposal sites from dam construction, as construction and disposal regulations and procedures were very different back then.
