Roman drain in Castle Park, partially exposed near west entrance to park.<1><2>

In 1892, during the making of the new Castle Park, a vaulted drain was recorded by Laver, c.20in. wide and 2ft. 5in. high, built of tiles and septaria and lined throughout with Roman mortar. He comments, 'It runs under both (Roman Precinct) walls, curving away to the north as if to cross under the Roman street and take up a line along the west side of it. It has been cut by the Norman ditch, and its remains can now be seen in the Park shrubbery. It has also been traced for some 120ft. eastwards, within the court, where it runs parallel to and south of the inner wall at an interval of 20ft. The exposed portion shows that it is just over 2ft. wide, with 2ft. high walls of six courses of septaria. The floor and vault, which is remarkably flat, are of tiles. Those in the vault are of mixed sizes, a point not to be expected in an early structure.<2>