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Low Impact Development
SEMCOG has developed an online Low Impact Development database to help communities identify LID practices throughout the state. This easy-to-use database can provide information related to all LID practices within a community, a county, neighboring communities, the region, or the State.
The database was designed to go hand-in-hand with the Low Impact Development Manual for Michigan: A Design Guide for Implementers and Reviewers and currently includes all of the case studies represented in the manual. However, the database can also store additional information and serve as a centralized location for all LID projects throughout Michigan.
The LID database can be used in two ways: as a search for entered projects or as place to capture your project information in a centralized location. This online database has the ability to capture detailed information about projects including construction and annual maintenance costs, design specifications, and multiple photos of the project, and produce colorful reports that can be saved, printed, or e-mailed as PDFs.
Statewide LID Manual
In addition to the manual, SEMCOG has led the development of a series of brochures and implementation workshops held across the state.
From a stormwater management perspective, Low Impact Development (LID) uses the basic principle that is modeled after nature: manage rainfall at the source using uniformly distributed, decentralized micro-scale controls. LID's goal is to mimic a site's predevelopment hydrology by using design techniques that infiltrate, filter, store, evaporate, and detain runoff close to its source. Techniques are based on the premise that stormwater management should not be stormwater disposal. Instead of conveying and managing / treating stormwater in large, costly, end-of-pipe facilities located at the bottom of drainage areas, LID addresses stormwater through small, cost-effective landscape features located at the lot level.
Almost all components of the urban environment have the potential to serve as an integrated management practice. This includes open space, as well as rooftops, streetscapes, parking lots, sidewalks, and medians. LID is a versatile approach that can be applied equally well to new development, urban redevelopment, and along transportation corridors.
The Benefits of LID
An interactive mapping Web site has been created by Lawrence Technological University that showcases many LID examples throughout the Southeast Michigan region. This new Web site is currently a prototype for LID case studies and will be expanded in the near future.