In the days Cotton Hollow was a thriving mill village, people lived and worked on either side of Roaring Brook. Since the area was separate from South Glastonbury by a large fence and gate, the main way for people to cross the stream was a bridge located ~1,000 feet downstream from the large mills.
The footings are all that remain from the bridge, two stone walls that resemble retaining walls more than a bridge nowadays. The bridge sat right next to the old mill houses on the south shore of Roaring Brook. On the north side, the marker that honors the famous Eunice Cobb Stocking Gunpowder Mill from the Revolutionary War is located right next to the footing.