Sandy subgrade soil in the area enhances the paver system’s performance. The installation also uses parkway bioretention swales that absorb runoff from house roofs, sidewalks and front yards and trap sediment that could clog the paver system. In addition, cobble infiltration areas in the triangles created by sidewalks at intersections capture curb and gutter runoff.
For years, residents of a historic neighborhood in Charles City, Iowa, endured street and yard flooding after rains of one inch or more. Instead of installing new streets and storm sewers to solve the problem, city officials chose permeable pavers.
Now, 154,500 square feet of...
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