Low Impact Development

Permeable interlocking concrete pavement uses layers of open-graded aggregate to provide a stable vehicle surface and allow stormwater infiltration.
From bottom up: subbase, 12” depth of #4 size aggregate, 4” depth of #67 size, 2” depth of 3/8th fracture aggregate setting bed, pavers
Sand and geotextile fabric between the aggregate layers are not used
For light vehicle or pedestrian use, the 12” depth of #4 aggregate may be reduced unless needed for stormwater capacity.
The depth of the #4 aggregate can also be increased to receive run-on from adjacent impervious areas.
See Meza Construction - Permeable Paver System Article for project photos and information

Photo Courtesy Michelle DeLaria

This database is compiled and maintained by the CASFM Stormwater Quality Committee. Please submit photos and summaries for other structures that may be added to this list. Also send additional information about existing structures in this database to Herman Feissner at hfeissner@feissnerconsulting.com or Holly Piza at hpiza@udfcd.org.