Port of Olbia (SS), resuction of 200,000 cubic meters of granite;
Former Military Arsenal - La Maddalena (SS), reduction of 10,000 cubic meters of granite;
Underwater blasting
Lake Mead, the largest man-made reservoir in the United States, is located about 30 miles southeast of Las Vegas,
Nevada. For the construction of Lake Mead third water intake, which is entirely placed underground, an underwater excavation was needed at a depth of 100 m (330 ft): a large surface had to be deepened by 20 m (66 ft) in basalt.