File:PaveDrain.jpg|Permeable Articulated Block Systems: PaveDrain at the LSRCA headquarters in Newmarket, ON is an example of an articulated block system designed for heavy loads. | File:PaveDrain.jpg|Permeable Articulated Block Systems: PaveDrain at the LSRCA headquarters in Newmarket, ON is an example of an articulated block system designed for heavy loads. |