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Creeks Division pilots parkway stormwater retrofits; first installation cost about $6,400
Summary
Tim Burgess of the Creeks Division presented a pilot parkway retrofit designed to capture sidewalk and street runoff and described a programmatic approach for citywide low-impact-development parkway retrofits.
Tim Burgess of the Creeks Division presented the stormwater parkway retrofit program to the Sustainability Council Committee on Aug. 7, describing a pilot installation and a citywide approach to capture and infiltrate runoff in parkways (the planting strip between the sidewalk and the street).
Burgess explained the problem the program addresses: urban pavement accelerates runoff, increasing creek erosion and reducing groundwater recharge. Low-impact-development retrofits in parkways can capture sidewalk or curb runoff, boost infiltration, reduce peak flows and improve water quality by allowing soils and vegetation to process pollutants.
Staff presented a recently completed pilot…
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