Porous Pavement
Jones & Beach Engineers Inc. is becoming the pioneer of the Seacoast advocating infiltration design systems for stormwater management. Although the science of infiltration has been around for years, there has been a recent push for better and more innovative approaches to stormwater management that go well beyond the traditional detention basin solution. Using the concept of sustaining the hydrologic cycle, J&B is implementing a number of methods and materials that infiltrate runoff, especially pervious pavements of asphalt concrete and Portland cement concrete that overlie stone storage beds and sand filtration layers for better water quality into our clients development. These systems take a conventional site design that requires both a structural paving system intended only for transportation, as well as a closed drainage system to include conveyance and detention basins, and converts them into one system used as a "Better Management Practice" that sustains the natural soil infiltration and groundwater recharge of a given site. These systems are designed to prevent any increase in runoff volume during the two-year frequency rainfall, provide for better water quality treatment, and they also mitigate the peak rate of runoff for all other storm events.
Jones & Beach Engineers Inc. is currently developing both residential and commercial projects using pervious systems. In the town of Exeter, NH, J&B has designed three sites to include pervious paving systems and one site will be constructed in the spring of 2008. Additional site designs using pervious pavement systems are currently under way in the towns of Dover, Concord, Barrington, and North Conway.
