Hood River Outfall Project

Bell Design Company was contracted by the City of Hood River to oversee and manage the redesign of the City’s 60-inch combined sewer and sanitary outfall from the municipal wastewater treatment plant. The project involved evaluating several alternative outfall locations, performing a mixing zone analysis, and analyzing the WWTP’s hydraulics. The objective of this project is to develop a new confluence zone for the municipal wastewater treatment plant to flush out treated effluent into the Columbia River, by extending the current sewage pipe under the Hook road and farther into the active river currents on the Wells Island side of the plant.