The tables provided on this site contain links to design materials provided to encourage the use of structural low impact development strategies (rain gardens, planters, stormwater planters, swales, vegetated filter strips, porous pavements, soakage trenches, and drywells) into communities. Peer-reviewed by civil engineers and landscape architects in both the private and public sectors, these standard details could be the basis for developing both county/city and site-level stormwater management plans. These details are applicable to many different places, but information was developed specific to Western Oregon.
The Philadelphia Water Department worked closely with the Mayor’s Office of Transportation and Utilities, the Streets Department, Philadelphia Parks and Recreation, and other public utilities, partners, and agencies to develop detailed design templates for green streets that are flexible enough to be applied in a variety of urban street conditions. The Green Streets Design Manual outlines what types of GSI practices are appropriate on various street typologies, provides standardized design details, and lays out the necessary design review and construction inspection processes. Moving forward, design professionals, engineers, planners, and developers can utilize the approved design standards and procedures therein to expedite green street development in Philadelphia.
This study examines the economics of stormwater infrastructure by conducting a cost-effectiveness analysis of four types of green stormwater infrastructure and two conventional infrastructure analogues. Six scenarios were modeled for redeveloping existing urban right of ways and alleys to retain and infiltrate stormwater onsite.
The Green Values® Stormwater Toolbox was originally developed primarily for use by planners, engineers and other municipal staff. This tool is utilized by entering information specific to the particular lot or land locations, size, coverage type, conventional development and then determining a runoff reduction goal. This toolbox is accompanied by a list of state, local and national standards relative to runoff and stormwater management. Once information is entered into the National Stormwater Calculators, green improvement options and advanced options allow the users to fine tune their goals as well as estimate benefits and costs for those green infrastructure improvements.
This implementation strategy document is the City of Clarkesville’s, a small yet fast-growing community, green infrastructure plan. The EPA worked with the city to develop an implementation strategy, including: 1) goals and objectives, based on the city’s current and future needs, 2) a comprehensive prioritization of parcels throughout the city to identify opportunities for further evaluation, and 3) site-specific design recommendations, including illustrations and descriptions of potential green infrastructure practices. The EPA used Tetra Tech’s Green Infrastructure Opportunity Checklist Tool to identify opportunities for improving the City of Clarksville’s Zoning Ordinance to encourage implementation of green infrastructure by developers, property owners, and other parties. Funding sources were reviewed, and leveraging amongst diverse sources was considered in relation to the city’s interests and site-specific opportunities. The recommended strategy is summarized in a 6-step process. By outlining goals, priorities, code improvements, project opportunities, and funding sources, the City of Clarksville’s strategy provides a model approach for small, unregulated communities to successfully pursue green infrastructure.