They support standard EUR-pallets, used throughout Europe for transportation and storage. The inexpensive pallets withstand heavy loads and are available in large quantities on short notice. The waterproof sheet is reinforced high-density polyethylene coated with light density polyethylene plastic. The major advantage of the system is its simplicity. The relatively light pallets and pallet supports cause little damage to lawns and gardens compared with sandbags.
All components are reusable.
After the flood subsides, the barrier is taken down and stored in preparation for the inevitable next flood. Pallet Barriers are assembled by inclining each pallet against its supports so they form a line in the desired direction. The barrier can follow ground contours vertically and horizontally. 230 ft below the seafloor in Massachusetts Bay. During construction, diffusers were sealed to protect the tunnel from flooding.