Fred Beal is a highway engineer, so when he needed a bridge for his Montana home, he designed and built it himself. With help from his wife and son, he first built a huge plywood form. Then he cast three steel-reinforced concrete arches (which average about 8 tons each!). To dress up the sides of the bridge, he set cultured stone into the wet concrete. When the three arches were cured, a hired crane set them into place, resting on a pair of thick concrete footings.
“It’s strong enough for any traffic, even the 35-ton rig that drilled our well.” — Fred Beal