| + | Please see below a profile and plan view of a drawing of a standard permeable pavement composed of interlocking pavers located in a parking lot/laneway, location independent upon estimated traffic and vehicular loading. The installation is designed with an underdrain in this drawing as the site has low permeability (< 15mm/hr), allowing for partial infiltration in the system. The permeable paver installation also includes a cleanout for said underdrain in case of clogging, and is comprised of a crushed aggregate bedding layer, clean washed stone base, and subbase (more about these layers can be found under here [[OPSS aggregates]] & [[Choker layer]]). The entire facility and these layers are surrounded by a geotextile to retain these layers and separate them from the underlying soil subgrade, allowing the system to infiltrate water into the surrounding soil and prevent migration amongst layers. |