 The Transportation Integrated Storm Water Management (TriSWM) guide was developed as a supplement to the Integrated Storm Water Management (iSWM) design manual for site development to be used by cities, counties, engineers, private developers, contractors and transportation agencies in the planning and design of storm water management for streets, roads, and highways.
The purpose of TriSWM is to provide planning and design guidance and a framework for incorporating effective and environmentally sensitive storm water management practices into the street and highway development process and to encourage a greater uniformity in developing plans for storm water management systems that meet the following goals:
- Provide safe driving conditions
- Minimize downstream flood risk to people and properties
- Minimize downstream bank and channel erosion
- Reduce pollutants in storm water runoff to protect water quality
TriSWM discusses strategies to aid local governments and the private sector to:
- Design roads and highways with storm water impacts in mind
- Address and mitigate the adverse impacts of development on runoff
- Implement storm water controls to meet the TriSWM planning and design approach
For more information on TriSWM, contact Staron Faucher [email form]
TriSWM Brochure - 7.16.08 [PDF]
TriSWM Presentation in public meetings July 2008 [PDF]
TriSWM Manual (Appendix J of the iSWM Design Manual) [PDF]
NCTCOG's iSWM Web site featuring the iSWM Design Manual for Site Development
Environment and Development Regional Storm Water Management Program |
