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→Underdrain
===Underdrain===
===Underdrain===
[[File:PermeablePaving CrossSection.png|frameless|Permeable Pavement cross sections showing full and partial infiltration designs. Source: GVRD, 2005]]
[[File:PermeablePaving CrossSection.png|border|Permeable Pavement cross sections showing full and partial infiltration designs. Source: GVRD, 2005]]
===Finish course===
===Finish course===