150 meters above a state road, rock needles are blasted in Gundlfing/Germany. The explosion accelerates boulders to higher speeds than a natural rockfall. The 3000 kJ rockfall protection barrier withstands multiple impacts even into single fields. Stones with diameters of 0.5 to 1.5 meters crash into the barrier and are held back successfully. Thanks to its innovative design, the Geobrugg protection system remains fully functional without maintenance. Watch the video.