Corse Bridge and attached Walled Channel

Corse Bridge and the attached Walled Channel were constructed as part of a drainage and enclosure scheme for Castlemartin Corse, initiated in 1788 by landowner John Campbell of Stackpole Court. This project included a channel to direct drainage through sandbanks into a culvert leading to the sea, along with a bridge for the Angle to Castlemartin road. The initial works were completed by Campbell, while John Mirehouse of Brownslade, who rented the 274 acres of land, finished the drainage efforts and was awarded the Gold Medal of the Society for the Encouragement of Arts, Science and Commerce in 1800.

The bridge, built from mortared rubble masonry, has a segmental arch with a span of approximately 7 meters and a width of 3 meters. It features deep thin voussoirs, parapets about 1 meter high with large coping stones, and curved approach wings. Below the bridge, there is a 25-meter long open drainage channel that is 2 meters wide, flanked by paths on either side and bordered by retaining walls. The drain flows into a culvert at the base of a high retaining cross wall, which leads to the sea.

These structures represent an early example of agricultural improvement works undertaken by John Campbell, later known as Lord Cawdor, and his tenant John Mirehouse of Brownslade.