5:15am Ee noticed 79 x c along main east track was taking weight. He then knocked the trolley power and called tex rader acting shift foreman and informed him of the condition. rader then sent a man to guard the area from 8 blocks away until rader arrived.He stated that at 6:17 am the intersection at 79 xc 82 + 68 on main east track fell. the fall was approx. 20'lx16;wx13'h.