EPA publication outlining green infrastructure practices that can retrofitted to built municipal environments.
(January 2015) Published by the EPA Office of Wetlands, Oceans and Watersheds National Estuary Program. Green infrastructure practices can be integrated into existing features of the built environment, including streets, parking lots, and landscaped areas. Green infrastructure practices can be a viable option for managing stormwater in highly urbanized and infill situations where development density is desired and offsite mitigation is not a preferred alternative.
Though green infrastructure can potentially have higher installation costs in redevelopment and retrofit settings, this is not always the case due to the site- specific opportunities and constraints on many infrastructure projects. Since gray infrastructure retrofits can also be costly, green infrastructure can be integrated into already planned infrastructure improvement projects to help mitigate demolition and disposal costs.