In the 1930's, people from Oakridge, Cottage Grove, Springfield, Eugene, Monroe, Albany, Salem and Portland were tired of flooding in the Willamette Valley. Oregonians demanded solutions to the frequent flooding, which severely impacted travel, accessibility to homes and businesses and damaged personal and public property. They convinced politicians to address the problem with infrastructure, and drove the authorization, funding and construction of the Willamette Valley system: 13 dams that mitigate flood damages by managing perennial flood risks. The U.S. Army Corps of Engineers developed this system from 1939-1969 and it has since provided immense benefits, especially with the valley’s continued, un-checked growth (by politicians, municipalities, developers, etc.) along the Willamette River.