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x <br /> MWEIMIRM <br /> Innovative Stormwater Management '•:i` <br /> POROUS ASPHALT PAVEMENT <br /> with Subsurface Recharge Bed <br /> Porous _ # <br /> Asphalt <br /> •Conserves water <br /> •Reduces runoff <br /> •Promotes infiltration <br /> M y + •Cleans stormwater <br /> *� i, ✓I+ i+ •Replenishes aquifers I I I ? <br /> III <br /> I\W-W y� •Protects streams <br /> \♦ •Better Water Quality <br /> • <br /> Uncompacted Subgrade- Keeps permeability high to I •Allows for better use <br /> allow as much infiltration as _ <br /> possible. of land <br /> Non-Woven Geotextile- Protects stone recharge bed above <br /> from contamination and allows <br /> water to flow through to the soil. <br /> Stone Recharge Bed- Heart of system. Large,single size, d <br /> crushed stone with 40%voids stores <br /> storm water for infiltration. <br /> Choker Coarse- Single size crushed aggregate(1/2-inch)stabilizes <br /> surface for paving. <br /> Open-Graded Asphalt Pavement- An open-graded asphalt mix that <br /> is porous,allowing storm water to <br /> flow through surface into stone <br /> recharge bed. <br /> Unpaved Stone Edge- A backup system in case the pavement surface <br /> should ever become sealed. Stormwater can <br /> flow off pavement surface to stone edge and into (t <br /> stone recharge bed.Other methods may be used. f „ <br /> AIS Additional information can be found at these resources <br /> B .,_M P.O.Box 668, www.hotmix.org(Porous asphalt design guide) <br /> _ AMDERSOti, <br /> _ RS <br /> Brainerd,MN 56401 <br /> 218-829-1768 www.thcahill.com (Leading environmental consultants withPwA <br /> porous asphalt) �� <br />