Structural stormwater Best Management Practices

In a watershed scale stormwater management approach, structural BMPs are used for on-site and regional treatment and after prevention and source control BMPs have been employed. Source:CDM Smith.

A structural stormwater BMP is defined in the MS4 General permit as "a stationary and permanent BMP that is designed, constructed and operated to prevent or reduce the discharge of pollutants in stormwater".

1. Green roofs (+)
2. Permeable pavement (+)
3. Trees
4. Bioretention (+)
   1. Rain garden: see Bioretention
5. Infiltration basin (+)
6. Infiltration trench (+)
7. Filtration (+)
   1. Swales
   2. Sand filters
8. Iron enhanced sand filter (Minnesota Filter) (+)
9. Stormwater ponds (+)
10. Stormwater wetlands (+)
11. Hydrodynamic devices
12. Filtration devices
13. Chemical treatment

To view all pages for a particular BMP, click on "+"

• Examples of structural BMPs.
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  Bioretention (rain garden)

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  Permeable pavement

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  Green roof (Image Courtesy of The Kestrel Design Group, Inc.)

• 

  Iron enhanced sand filter (Photo courtesy of Barr Engineering)

• 

  Vegetated swale