Newtown Lock, spill weir and boundary markers

MATERIALS: The lock chamber is built of red brick with ashlar dressings; the spill weir is constructed of stone and red brick.

DESCRIPTION: The single pound LOCK has brick retaining walls surmounted by large ashlar coping stones. There are stone quoins to the gate recesses at the upper and lower ends of the chamber. The pairs of timber gates were replaced in the late C20; iron fittings restrain the gateposts. The associated SPILL WEIR is situated on the towpath (north) side of the lock and formed part of the site's water management system: an overflow device for ensuring the canal water levels remained stable. It consists of an open trough into which the overspill flowed. The overflow channel leading underground from the trough has three shallow, segmental-arched openings in brick which spring from stone jambs and a central chamfered stone. The railings now enclosing the spill weir are not original.

SUBSIDIARY FEATURES: the group also includes two roughly-carved stone boundary markers. They are situated on the south side of the canal, at either end of the lock pound, and appear to date from the late C18.