Environmental Engineering Reference
In-Depth Information
Figure B-21
Green buffer will form the river edge as a pedestrian corridor.
40% canopy on average, with the river “greenbelt” edge achieving the greatest
percentage (Figure B-21).
A key component to this vision is to get private developers to participate
in the program, effectively reducing any public cost associated with sustainable
redevelopment. A local rail line is also a critical part of the plan, with the right-
of-way turned into a green transit corridor. This greenway will be a part of the
stormwater volume-reduction plan, which includes porous streets, sidewalks, rain
gardens, vegetated roofs, and other solutions to keep all runoff from entering the
existing combined sewer system.
Shared Medical Systems (now Siemans) Sustainable Stormwater
Management System (1982)
The SMS Corporation was building an office complex in East Whiteland
Township, Chester County, Pennsylvania, in the early 1980s, and had completed
several buildings with conventional stormwater detention basins and storm
sewers. The site was situated on a carbonate-underlain, wooded hillside
overlooking a small high-quality stream, and the partially completed detention
system was not preventing erosion but was creating an eyesore at the site. Cahill
Associates and Andropogon Associates designed and directed the construction
of a series of terraced parking beds with porous AC within the bays and a ring
road of standard AC, which drained into the beds (Figures B-22 to B-24). It
was one of the first sustainable stormwater management systems built in the
United States, and served to demonstrate the feasibility of infiltration as a better
solution for stormwater runoff volume management. It has been in operation
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