In Portland, a city noted for pioneering and mandating use of new env ro^ technology, enhancing sustainability and mitigating environmental jmpac critical goals. For this reason, Portland has already seen a proliferation roofs and LEED® certified buildings. This project creatively departs fror : details for stormwater collection, detention and quality enhancement thrc . Persian garden inspired sculpted forms, textures and colors. The desig-of the courtyard garden at [email protected] Apartments was to imaginative^ : stormwater and provide extended detention of nearly all the roof top stor runoff.
The City of Portland requires developers to mitigate the impact of any ¡rc$ai in impermeable surfaces of developed property. Many engineered merr C' solutions have been developed to satisfy the guidelines, but wither consideration of the aesthetic appeal of water. This project explore: aesthetic possibilities and choreographs stormwater through a variety of c zA* and sculptural devices that continue to be a source of inspiration for larcs:4P< architects.
2006 Special Recognition, Green Roofs for Healthy Cities;
2006 Merit Award, Amencan Society of Landscape Architects, Oregon Chapter.
Our design excites native Portlanders and building residents alike. The 'an and the integral stormwater features make users aware and apprécia: .-r a this natural resource by temporarily diverting stormwater from its typ :3 :mr to the urban stormwater mitigation structures and displaying, modulât"; accentuating its delightful qualities. The entire landscape is built on a cone m structural slab over a parking garage limiting opportunities for infiltrat rt aquifer recharge within the project limits, but allows significant onsite de~e * : Stormwater can be detained for approximately 30 hours after each stor^ allowing time for sediments to settle out and the water to be cleansed na:
Three copper downspouts channel nearly all the roof stormwater into pf<M concrete runnels and chadars — two of which empty water into st".- m*
~e courtyard is typically open to the public street from dawn to dusk. Passersby are often enticed to stop and view the moving water.
* Subtle asymmetrical design components are reminiscent of Persian gardens.
— - " example of the contrasting plant textures. The plantings: Gunnera tinctora. Camellia sasanqua . jletide', Pachysandra terminalis, and Galium oderatum, take turns providing year round color and
» ~ e main runnel element empties into a cistern that temporarily holds water, recirculating it " ough COR-TEN light boxes, before emptying into the City storm system.
:mention basins, and a third emptying into a 40 ft (12 m) long 4000 gallon (15,141
- retention cistern. Granite river rock adds textural contrast and secures the zzoIs from being a safety hazard. The basins and cisterns temporarily hold water
- - :: allow for recirculation over two sculptural Cor-ten weir boxes. Each water * r is also designed as a sculptural light feature that maintains interest wet . dry. Water in the cistern and basins begins to slowly weep into the district's : *: mwater system after the initial storm event. The total holding capacity of the
-s ~s and cistern allows the detention of roof water equivalent to a 1/8"(0.3 ~ rainstorm event. This allowed the downsizing of the conventional mechanical . * Drmwater detention device used on the site.
e inner courtyard also provides semi-private respite for occupants and is open •: public enjoyment. The central community seating area is cradled between the s:: mwater features and includes a section of covered seating so spectators can zs:ner and watch during rain events. Evergreen, flowering and fragrant plants 5-cn as Camellia sasanqua 'Yuletide', Sarcococca rusifolia and Daphne odora take
- —s providing aromatic and color interest. Gunnera tinctora offers a surprise of e*-oerant texture and flower form for those who explore the courtyard.
5": -mwater that gathers from the encompassing building roof engages the entire :: jrtyard space and presents a public display of light and energy. Even at night, — e metal weirs pierced with glass buttons and illuminated by interior lights r eate a friendly space and add a lively presence to the otherwise out of sight zA of mind stormwater cycle. Night or day, rain or shine this courtyard remains 5 2 easant environment for residents.
Illuminated water activates the place
Detail of Runnel and Weir.
/ The courtyard comes alive at night with unique lighting effects produced from various sources.
i/V Glass buttons penetrate the 15 ft (4.5 m) long COR-TEN weir.
i Units facing into the courtyard enjoy views of the sculptural courtyard elements.
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How would you like to save a ton of money and increase the value of your home by as much as thirty percent! If your homes landscape is designed properly it will be a source of enjoyment for your entire family, it will enhance your community and add to the resale value of your property. Landscape design involves much more than placing trees, shrubs and other plants on the property. It is an art which deals with conscious arrangement or organization of outdoor space for human satisfaction and enjoyment.