The 375-foot long Spruce Street Bridge was built in 1912, and spans Kate Sessions Canyon. The footpath floats among treetops, gracefully suspended from two steel cables anchored to concrete piers at either end. The lightness of the bridge allows it to sway and dance in response to wind and walkers. Designed by Edwin Capps, this unique span was engineered to hold 2,186 people with an average weight of 150 pounds.