The Spectacle Island Landfill right outside of Boston, MA had been closed for several years before it was officially sealed. When the city of Boston started their Central Artery/Third Harbor Tunnel Project, the sent their leftover dirt and clay to the island to resurface and seal the landfill. Once completed, a new issue popped up along the upper slopes. Storm surge from the Boston Harbor would cause wave run up onto the slopes causing erosion. They needed a solution that would be cost-effective as the cost of barging material to the island was already high.