Siskiyou Green Street
Siskiyou Green Street Project in a leafy residential neighborhood of Portland, Oregon. This "stormwater curb extension" as described by the Portland Bureau of Environmental Services adds "bump-outs" to extend the curb line into the neighborhood street near an intersection. Thickly planted with multi-textural sedges and ferns, and intersected by river rock dams and weirs, these right-of-way extensions catch street runoff and serve as biofilters. A simple sign standing in one of the landscaped extensions clearly shows, with brief text and images, how the system works and what it accomplishes. This humble project provides a noteworthy example of multi-function: the extensions not only filter and slow runoff, but they also serve as traffic calming devices by narrowing the roadway while the lush plantings provide streetscape beautification that is compatible with residential plantings in the area. The project also stands as a virtual exemplar of transferability, as it's very easy to see how this strategy could be used in other neighborhoods. Indeed, according to Tom Liptan, Environmental Specialist for the City of Portland's Bureau of Environmental Services, residents of other Portland neighborhoods are now requesting the addition of this feature to their own streets, and are willing to open their own wallets to pay for this streetscape amenity. Sustainable Stormwater Management Program
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- Siskiyou Green Street
- Location: Portland, OR
- Designer: Bureau of Environmental Services
- Client: City of Portland
- Last Updated: March 11, 2007, 5:46 pm
