Provides stormwater managers and site designers with a common understanding of LID goals, objectives, specifications for individual practices, and flow reduction and water quality treatment credits that are applicable to the Puget Sounds region.
A streamlined factsheet describing the uses, design options and benefits of linear stormwater tree pit. These stormwater tree pits are similar to traditional street tree pit design, but are modified so the pit accepts and treats stormwater runoff and provides an improved planting environment for the tree.
This report addresses the fact that the impacts of stormwater pollution and the need to provide stormwater prevention, management, and treatment all create costs for communities and their residents. But provides data and case studies that show these costs can often be offset or reduced by making different choices about how we build communities and infrastructure. By incorporating trees and “green infrastructure” practices in efforts to control stormwater runoff, communities and property developers can reduce energy costs, diminish the impacts of flooding, improve public health, and reduce overall infrastructure costs.
This is a comprehensive stormwater ordinance that acknowledges trees and other vegetation as critical to stormwater management in the city. The ordinance also contains maintenance requirements and extensive appendix materials.
This EPA Green Infrastructure modeling tool supports planning and design decisions for site designers, planners, or environmental managers on a range of scales. Scales range from setting a green infrastructure target for an entire watershed to designing a green infrastructure practice for a particular site or an entire watershed. Some models can predict the water quality and water quantity impacts of green infrastructure approaches. These models cannot only predict the cost for green infrastructure but also benefits such as improvements in air quality and reduction of energy consumption. These models range from simple to complex.
The EPA website is designed to assist municipalities in growing green infrastructure throughout the built environment. The website features a Municipal Handbook provides local governments step-by-step material on growing green infrastructure in their communities, with chapters on funding options, retrofit policies, green streets, rainwater harvesting policies, and incentive mechanisms. The website also contains a series of EPA policy guide publications for Smart Growth and water resources protection that can be used by municipalities looking to innovate their policies concerning green infrastructure. Finally a policy tool kit features communication and program evaluation tools that are designed to help local governments effectively promote green infrastructure.
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.
Provides a framework for the City of Ann Arbor to effectively manage its urban and community forest as
a sustainable asset, consistent with the values and needs of the community, while maximizing its benefits.