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<br />useful manual to help builders, developers, landscapers, planners and inspectors use <br />these BMPs effectively. The manual includes specification language, soil <br />management plan forms, an amendment calculator and more. <br /> <br />Low Impact Development definition from Soils for Salmon Oregon <br />Low Impact Development (LID) is an innovative storm water management approach with <br />a basic principle that is modeled after nature: manage rainfall at the source using <br />uniformly distributed decentralized micro-scale controls. LID's goal is to mimic a site's <br />predevelopment hydrology by using design techniques that infiltrate, filter, store, <br />evaporate, and detain runoff close to its source. Techniques are based on the premise <br />that storm water management should not be seen as storm water disposal. Instead of <br />conveying and managing / treating storm water in large, costly end-ol-pipe facilities <br />located at the bottom of drainage areas, LID addresses storm water through small, cost- <br />effective landscape features located at the lot level. These landscape features, known as <br />Integrated Management Practices (IMPs), are the building blocks of LID. Almost all <br />components of the urban environment have the potential to serve as an IMP. This <br />includes not only open space, but also rooftops, streetscapes, parking lots, sidewalks, and <br />medians. LID is a versatile approach that can be applied equally well to new <br />development, urban retrofits, and redevelopment / revitalization projects. <br />