 The intention was that they would be allowed to put 55,000 cubic yards (42,050.5 m3) of fill there provided that they use it to build a berm to block the view of Virginia Key's sewage water treatment plant.The fill that was dumped on Virginia Key was mainly rock and soil from road construction and site preparation on Watson Island and not from tunnel boring, which environmentalists object being put on Virginia Key as it may not be as clean.The north point of Virginia Key is one of the last remaining undeveloped areas near the Miami downtown area and has been recently restored as it was previously used as a dumping site for the infill from the Rickenbacker Causeway, Miami Marine Stadium, and Norris Cut.