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Pierce County Environmental

  • Location: Chambers Creek, WA
  • Designer: The Miller|Hull Partnership, LLP
  • Client: Pierce County
  • Last Updated: Feb 4 2007

The design presents a particularly effective strategy using a long water trail exhibits a variety of water treatment approaches and design elements in sequence: the trail begins on a corner of the building at a dramatic scupper from which water falls into a concrete basin incised with a spiral runnel.  In a rain event, water spirals from that basin into an adjacent wetland that visitors are invited to explore by walking across an elegantly meandering boardwalk.  At the end of the wetland the water disappears briefly under a roadway to reemerge in a bioswale designed to clearly indicate its function: the bioswale is lined with river stone and plants interspersed with pieces of driftwood, to drive home the water theme.  The bioswale forms a long axis, edged on one side by the parking lot and on the other by a walking trail—which ensures maximum visibility of the water treatment system.  At the end of the bioswale the water system again disappears briefly under a roadway, to end in a particularly intriguing piece of the system: a "flow splitter plaza".  Here effective signage and three visible valve heads indicate how the system diverts runoff into two different conveyance/infiltration swales: one grass-lined, and one rock-lined, while a third diverter awaits development of future treatment strategies.

Added by admin on Dec 31 2006

Siskiyou Green Street

  • Location: Portland, OR
  • Designer: Bureau of Environmental Services
  • Client: City of Portland
  • Last Updated: Feb 4 2007

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

Added by admin on Dec 31 2006

Tanner Springs Park

  • Location: Portland, OR
  • Designer: Dreiseitl, GreenWorks
  • Client: Portland Parks and Recreation
  • Last Updated: Feb 4 2007

GreenWorks collaborated with Atelier Dreiseitl of Germany to design an urban park in Portland's Pearl District. Envisioned as an urban park with a wetland focus, the park serves many residents in the newly developing Pearl District neighborhood. The design features innovative uses of water and stormwater, creating a refuge for people and wildlife in the midst of this bustling downtown neighborhood. The design process was highly interactive and involved the citizens of Portland through a series of interactive public workshops. (from GreenWorks)

Added by admin on Jan 2 2007