Great Lakes Green Streets Guidebook
The Great Lakes Green Streets Guidebook contains a sampling of road improvement projects within the Great Lakes Watershed that have successfully incorporated green infrastructure techniques to manage stormwater runoff and benefit water resources. SEMCOG developed the Low Impact Development (LID) Manual for Michigan in 2008, which includes planning approaches and design criteria for LID techniques. LID/green infrastructure techniques are intended to mimic a site’s presettlement hydrology by using best management practices that infiltrate, filter, store, evaporate, and detain runoff close to its source. Designs are typically customized according to local regulatory and resource protection requirements as well as site constraints. Roads present a larger challenge than site development projects to incorporating green infrastructure techniques due to their inherent constrained spaces, multiple transportation requirements, and overlapping jurisdictions. Thus, the outcome of this Guidebook is the presentation of case studies showcasing varying approaches to integrating green infrastructure into road projects. Funding for this project was made available through a $500,000 grant from the United States Environmental Protection Agency as part of the Great Lakes Restoration Initiative.