Download - National Asphalt Pavement Association
Porous Asphalt Pavements with Stone Reservoirs for Stormwater Management
Kent Hansen, P.E.National Asphalt Pavement Association
Reduce storm water runoffReduce pollution from stormwater
runoffPromote groundwater rechargeReduce/eliminate retention/detention
area
Porous Asphalt Pavements
Why?
Stormwater carries a host of contaminantsfrom the land into the water
Roadways, for example, release oil and grease, tailpipe emissions, and other toxicsfrom motor vehicles.
As impervious surfaces channel large quantities of rainwaterinto streams at high velocity, the runoff wreaks havoc. The flow scours stream banks, destabilizes stream contoursand alters depths.
Ref: University of New Hampshire Stormwater Center 2007 Annual Report
Water Quality
Ref: University of New Hampshire Stormwater Center 2007 Annual Report
Performance
Many projects over 20 years old.Well over 200 nationwide
Montgomery Co.
Porous Asphalt
Not proprietaryAny quality asphalt producer can makePlaced using standard equipment
Designers & contractors need educationNot for every pavement
Parking lots most likelySite conditions important
Contact InformationFor further information contact:
Kent Hansen, P.E.Director of EngineeringNational Asphalt Pavement Association5100 Forbes Blvd.Lanham, MD [email protected] Dolan and Greg MooreMaryland Asphalt Pavement Association2408-G Peppermill Dr.Glen Burnie, MD 21061(410) [email protected]
