Portland – Introduction
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Imagine living somewhere where you get 37 inches of rain annually. To that 37 inches, add the fact that as a city you’ve just invested more than one billion dollars to achieve compliance with a state order to reduce sewer overflows to your city’s iconic river by 94 percent through a project dubbed the Big Pipe. This Big Pipe construction project was completed on time and under budget, but in less than a decade, its capacity will be exceeded, and the overflows could begin anew. This is the reality of Portland, Oregon. As a result, the city has implemented a number of programs to take stormwater off the Big Pipe, including a number of projects focused on the urban forest.