Urban+Residential
Raingardens
AshleyThorner
RAIN
GARDEN
RAINGARDEN
The raingarden at the Oregon Convention Center in Portland
provides an aesthetic urban demonstration that integrates
stormwater filtration gardens as a visitor attraction.
The
raingarden...
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Urban+Residential
Raingardens
AshleyThorner
RAIN
GARDEN
RAINGARDEN
The raingarden at the Oregon Convention Center in Portland
provides an aesthetic urban demonstration that integrates
stormwater filtration gardens as a visitor attraction.
The
raingarden mimics nature’s processes of retaining and
cleansing water before it is released back to the Willamette
River.
OREGON CONVENTION CENTER
RAINGARDEN
The Oregon Convention Center features a “raingarden” which collects as
much as 1,000 cubic feet of stormwater runoff (that’s just under 7,500 gallons) from the 5.
5 acre roof area.
The raingarden is a 318 ft.
long channel
that simulates a mountain stream with basalt columns, wetland plants,
native vegetation and grasses.
The raingarden consists of terraced cobbled sedimentation basins that act to slow the water, allowing sediments
to filter out and increase time for water to infiltrate into the ground.
The
water course is lined with 12 tons of Iron Mountain flag-stone and 90 tons
of riv
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