建設機械
Helicopters were dropping large sandbags made of strong, synthetic materials in the breach. Heavy equipment on the ground has been placing rock. Ground access was created by building a rock road from Hammond Highway, which is about 700 feet (200 m) lake-ward of the breach. The 17th Street Canal is a drainage canal whose dimensions and an important bridge, integral to the flood control system, would not permit entry of barges and towboats to haul rocks and placement cranes.