List of Contributions

Permeable pavements aren't designed and allowed in Virginia when the underlying soils has an infiltration rate less than 0.5 inch/hr: DEQ Virginia, etc. The plastic and mostly expansive soils of Virginia have in-situ infiltration rates much less than 0.5 "/hr, hence porous pavements shouldn't and won't ...

Has this concept been tested in northeast-like weather (snow, salt, hot..)? K. Siva ------------------------------ Umakanthan Sivapalarasah P.E., M.ASCE Fairfax County Department of Public Works Fairfax VA ------------------------------

If there are such requirements in U.S., they are being repealed. And that will be the trend for the next 4 years, as a result of the new executive branch of the government. ------------------------------ K.S. ------------------------------