Environmental Engineering Reference
In-Depth Information
largest CSO but educates library patrons, neighborhood residents, the develop-
ment community, and governmental officials on the importance of stormwater
management and ways to incorporate BMPs into sites ranging from residential
to urban.
Auto Warehousing Corporation/Port of Portland Terminal 6
Porous Pavement Parking Expansion (2005)
The Auto Warehousing Corporation leases facilities from the Port of Portland to
offload and process cars arriving from overseas ports. Due to increases in volume,
the facility at Terminal 6 was in need of expansion to resurface some 50 acres
for additional auto storage (Figure B-44). Cahill Associates, along with Century
West Engineering and GreenWorks, designed a sustainable site and stormwater
strategy utilizing porous pavement, infiltration beds, and vegetated swales. In
the end, the project entailed some 36 acres of porous pavement (Figures B-45
and B-46), and the use of on-site infiltration facilities allowed for a significantly
shortened design and permitting process that made possible construction during
the 2006 construction season by avoiding the need for U.S. Army Corps of Engi-
neers or Oregon Division of State Lands permits for an outfall to the Columbia
River. The use of porous pavement also allowed the port to avoid the city of
Portland's stormwater fees, which are calculated based on a site's impervious
area. In addition to the incredible cost and time savings, the porous pavement,
infiltration beds, and vegetated swales continue to improve the overall water qual-
ity in the vicinity of the site by mimicking the site's predevelopment hydrologic
cycle.
Figure B-44
Imported autos are offloaded from ships and stored temporarily.
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