1980! I tied the rope around my waist stood on one phone line and held onto the other phone line and walked, pulling strand across Sepuldeva Blvd (about a mile from LAX) hanging preforms on the way. I know we were suppose to have a traffic stop, after all it is a six lane street going into LAX (no such thing as a break in traffic). It's called look at the supervisors face as he marks up the asbuilts and you tell him "yeah that spans' done too".