In 1832 the construction of a blockhouse was started, one of only four built along the Rideau. It was completed in about 1834. It was built to the same dimensions as those at Narrows and Newboro, 24 feet (7.3 m) on a side, designed to accommodate 20 men. It was built with a masonry base, about 3 feet (0.9 m) in thickness, with an upper storey, 28 feet (8.5 m) on a side, built of large squared timbers. Access was by a stairway to the second floor.