Permeable paving solutions are made of either a porous material that enables stormwater to flow through it, a cellular paver system to provide depth and confinement for a drainage fill material, or nonporous blocks spaced so that water can flow between the gaps. Permeable paving can also include a variety of surfacing techniques for roads, parking lots, and pedestrian walkways.
Permeable pavers offer load distribution across the system, while controlling surficial rutting issues. Since they encourage stormwater to permeate through the system, permeable pavers can contribute to LEED credits and are a great LID solution to minimize the impact of imprevious cover restrictions. Rather than planning to move water into traditional drainage systems, such as a series of ditches, swales, or detention ponds, permeable pavers grant the option to store stormwater within and below the permeable system.
