Low Impact Development (LID) is a site design strategy that maintains or replicates predevelopment hydrology through runoff source control by reducing and disconnecting impervious areas, lengthening flow path and runoff time, and protecting sensitive features including: riparian buffers, wetlands, steep slopes and flood plains.
Examples of these structures include permeable pavement surfaces, grass buffers, porous landscape detention and green roofs. Urban Drainage and Flood Control District provides details on many LID structures in Volume 3 of the Drainage Criteria Manual under the 4-Step Process. http://www.udfcd.org/downloads/down_critmanual.htm
This photo essay has been compiled to show examples of LID structures in Colorado.