Like many post-industrial cities, Detroit has an outdated and overburdened combined sewer system. In a combined sewer system, heavy rains overwhelm the city’s water treatment system, resulting in increased flooding and discharges of both sewage and stormwater into local rivers. In order to reduce combined sewer overflows (CSO), stormwater must enter the sewer system at a slower and steadier pace without high peaks caused by heavy rain events. In addition, Detroit has vast amounts of impervious surface, much of which is abandoned or underused, further contributing to stormwater runoff concerns.
Our project, in collaboration with Michigan Community Resources (MCR) and Eastside Community Network (ECN), explores whether a collective, place-based approach to green stormwater infrastructure (GSI) installations can result in joint stormwater credits towards fees in residential neighborhoods.
Keywords: Urban infrastructure, combined sewer system, flooding, sewage, stormwater, green infrastructure