Tanner Creek, Portland, Oregon

Tanner Creek originates near downtown Portland, flowing through a pipe under the city, and gathering stormwater from a major portion of downtown. In 1992, the City of Portland’s Bureau of Environmental Services contracted with Inter-Fluve and other consultants to develop alternatives for removing sanitary sewer flows from the stormwater pipeline. Photo: GreenWork PC. 

The project received a 1994 Honor and Sustainability Award from the Oregon Chapter of the American Society of Landscape Architects. Photo: GreenWorks PC.