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10th @ Hoyt

  • Location: Portland, Oregon
  • Designer: Steven E. Koch, ASLA, KLA - Koch Landscape Architecture
  • Client: Rob Hinnen of Trammell Crow
  • Last Updated: Feb 16 2007

10th@ Hoyt is the interior courtyard of an apartment complex in Portland, Oregon’s Pearl District. The design, by Koch Landscape Architecture is inspired by forms, textures, and colors of Persian gardens, presents an inward-oriented private oasis focused on a playful-yet-elegant illustration of stormwater collection, storage, and reuse.  Stormwater from the roof travels down into the courtyard via copper downspouts in three locations; in each spot the water then travels via eye-catching chutes, runnels, and level spreaders of concrete, copper, and Cor-ten steel, eventually disappearing into raised basins filled with river stones.  The water is then stored for up to 30 hours in a 4000 gallon cistern below grade.  During the storage interval, the water is recirculated into elegant Cor-ten fountains in the courtyard.  Detained runoff is then slowly released to the city stormwater system.  Benjamin Rodes from Department of Landscape Architecture at University of Idaho has provided a wonderful Case Study of 10th@Hoyt.

Added by admin on Oct 17 2006

110 Cascade

  • Location: Seattle, WA
  • Designer: Mara Rogers - mara.rogers@seattle.gov
  • Client: Seattle Public Utilities and Seattle Department of Transportation
  • Last Updated: Feb 4 2007

Seattle Public Utilities and Seattle Department of Transportation replaced the existing ditch and culvert system along 4 blocks of Northwest 110th Street, between Greenwood Avenue North and Third Avenue Northwest in the Piper's Creek Watershed with a "Cascade" model natural drainage system as part of the Street Edge Alternatives program.  An online tour of the Street Edge Alternatives program is provided by the City of Seattle. Vegetation and swales that form part of the system help to filter out and break down polluted runoff, before the water reaches Pipers Creek.  The project is a series of stair-stepped natural pools that slow damaging stormwater flows, reduce flooding, and trap pollutants before they reach Piper's Creek. Stormwater flow from approximately 21 acres is managed through this natural infrastructure. (from Seattle Public Utilities)

Added by admin on Dec 30 2006

12th Avenue Green Street

  • Location: Portland, Oregon
  • Designer: Kevin Robert Perry, ASLA
  • Client: Cith of Portland Oregon
  • Last Updated: Apr 4 2007

The 12th Avenue Green Street project disconnects street stormwater runoff from a storm sewer that drains directly into the Willamette River and manages it on-site using a landscape approach. Stormwater runoff from SW 12th flows downhill along the existing curb until it reaches the first of four stormwater planters.  A 12-inch curb cut channels the street runoff into the first stormwater planter. Once inside the planter, the water is allowed to collect until it reaches a depth of six inches. The landscape system within each planter allows the water to infiltrate in the soil at a rate of four inches per hour. If a rain event is intense enough, water will exit through the planter’s second curb cut, flow back out into the street and eventually enter the next downstream stormwater planter.

The SW 12th Avenue Green Street Project has received a national award of honor from the American Society of Landscape Architects (ASLA). Bureau of Environmental Services green street specialist Kevin Robert Perry designed the innovative street stormwater project.

Added by admin on Feb 22 2007

Automated Trading Desk

  • Location: Mount Pleasant, SC
  • Designer: Nelson Byrd Woltz and SWA
  • Client: Automated Trading Desk
  • Last Updated: Mar 11 2007

Automated Trading Desk is a high-tech company that specializes in the development of computer programs and mathematical models to buy and sell securities. The client desired a campus that tied closely to the natural setting yet reflected the innovative work of the company. A sustainable design agenda was incorporated from the outset of the project. The 70,000sf building was carefully laced between historic trees and an interconnected series of stormwater ponds. The architects and landscape architects worked very closely to connect interior and exterior spaces. Stormwater is visibly traced from the roofs to open drain channels to meandering constructed stormwater basins. (From Nelson Byrd Woltz)  An article "Going with the Flow" detailing the design appears in the October 2004 issue of Landscape Architecture Magazine.

Added by admin on Dec 30 2006

Buckman Heights

  • Location: Portland, OR
  • Designer: Murase Associates
  • Client: Pendergast and Associates, Inc.
  • Last Updated: Apr 4 2007

Runoff from the building roof is piped under the lawn area and the sidewalk to the central courtyard planters.  The planters act as infiltration basins allowing stormwater to soak into the ground.  Water tolerant species including spiraea, iris and Oregon grape are planted in a Japanese holly border.  The border hedge gives the planters a formal landscaped appearance not normally associated with stormwater facilities. 

Added by admin on Dec 30 2006