RALEIGH, N.C. – Sixty members of the Interlocking Concrete Pavement Institute, local design professionals and government officials, including U.S. Representative David Price (D-NC), participated in a demonstration of how permeable interlocking concrete pavement (PICP) can help mitigate stormwater and reduce flooding.
Congressman Price is a member of the House Appropriations Committee and the Ranking Member of the Transportation, Housing and Urban Development Appropriations Committee. The demonstration, which took place at The Greens at Centennial Campus at North Carolina State University, was led by Fred Adams, Fred Adams Paving, and Dr. Bill Hunt, William Neal Reynolds Distinguished University Professor and Extension Specialist North Carolina State University’s Department of Biological and Agricultural Engineering.
PICP is a durable, cost-effective solution for compliance with national, state/provincial and municipal stormwater regulations. The surface consists of solid, durable concrete pavers with small, stone-filled joints that allow water to flow into highly permeable, open-graded bedding, base, and subbase aggregates. The spaces among the aggregates store water and enable infiltration into the soil subgrade rather than generating surface runoff. PICP is an excellent option for freeze thaw climates.
“For people in our state, particularly in this part of the state where we have been growing so much, the words permeable and impermeable have been in our vocabulary for quite some time,” said Congressman Price. “We think of them every storm, particularly in my case when I look out my door and see the creek swelling and know that it has to do with the impermeable pavement upstream and the way development has proceeded for many, many years.
“There is a need for a better way. Not only to mitigate damage from a particular storm, but also to build to better standards to mitigate damage in the future. This (permeable pavement) is part of a bigger picture that has to do with everything from the way we pave, to the way we construct housing, to where we put our wetlands and parks. But, it (permeable pavement) is a big part of the picture.”
ICPI says that PICP can provide the best of all worlds: facilitate robust construction, economic development and jobs, but in a way that will not add to stormwater runoff, will reduce flooding and improve water quality. These are critical public policy imperatives at all levels of government. PICP is recognized by EPA as a Best Management Practice for stormwater mitigation, a means for creating low-impact development and meeting growing construction mandates to build without adding to flooding.
“PICP has shown significant runoff and pollutant reduction for walkways, plazas, driveways, parking lots, alleys, and streets throughout the U.S.,” said Matt Lynch, ICPI Chair. “We are pleased that Congressman Price is examining how PICP can help achieve national policy imperatives.”