- WHAT: Green Parking Lot
- WHERE: Fort Collins, CO
- SIZE: 29,500 sq. ft.
TRUEGRID PRO PLUS provides employees and customers parking in a gravel reinforced lot and grass reinforced lot.
Project Scope
A stormwater drainage test case for permeable plastic paving by Neenan Archistruction. Daily employee and visitor parking traffic in a gravel surface lot and a grass surface lot.
Solution
The gravel lot solution: The area was excavated down a perforated drain pipe was placed in lowest (east) portion of the lot and connected to a 6" outlet pipe. Concrete curbing and landscape islands were installed. The existing clay subsoils were not compacted to allow for percolation. Different layers of base were placed see figures 1 and 2. TRUEGRID PRO PLUS was placed and connected and SuperSpots were inserted. A 3/8" clean, uniform, crushed granite fill was used as the surface layer.
The grass lot solution: Similar to the gravel lot, the area was excavated down to allow for the base material and the height of TRUEGRID PRO PLUS. A perforated drain pipe connects to a 6" outlet for added drainage. The clay subsoils were not compacted to prevent "bath-tubing" and to allow for as much percolation as possible. Varying layers of base and growing media were placed -- see figures 1 and 2 . TRUEGRID PRO PLUS was installed and SuperSpots inserted marking the parking bays. The TRUEGRID was filled with a "golf-course" growing mix and topped with a hearty grass to withstand the traffic.
