Changes

==Design Assumptions==

==Design Assumptions==

Permeable pavers are ideal for sites with limited space and projects such as low traffic roads, parking lots, driveways and walkways. Components include: interlocking pavers, a bedding aggregate layer, a base aggregate layer, and a sub-base aggregate layer (or stone reservoir) for water storage. Optional components include an underdrain to remove excess water and flow restrictor to control the release rate of the facility.

Permeable pavers are ideal for sites with limited space and projects such as low traffic roads, parking lots, driveways and walkways. Components include: interlocking pavers, a bedding aggregate layer, a base aggregate layer, and a sub-base aggregate layer (or stone reservoir) for water storage. Optional components include an underdrain to remove excess water, flow restrictor to control the release rate of the facility, and surface drains to safely convey flows in excess of the storage capacity of the design.

Design and operation and maintenance program assumptions used to generate cost estimates are based on tool default values and the following STEP recommendations:

Design and operation and maintenance program assumptions used to generate cost estimates are based on tool default values and the following STEP recommendations: