Walls surrounding Fonmon Pond including the Bridge and Weir and Well at Fonmon

The walls surrounding Fonmon Pond include a weir and a bridge, both constructed to manage the brook at Fonmon. The weir is located on the north side, while the bridge spans the stream entry on the south side. The pond is bordered by a low stone wall made of local rubblestone, which is laid in a more or less coursed manner on the east and west sides. The bridge features a low hump, splayed walls with rounded coping, and two small arches. The weir has an overflow situated between stepped walls on either side. On the west side, adjacent to the pond, there is a covered well or dipping place for water supply. Another roofed well is located on the opposite side of the road, which is listed separately. The water in the brook flows north, away from the nearby sea, and after passing Fonmon Castle, it veers west to join the river Thaw.