Bridge 149 over the Montgomeryshire Canal and Lock

Bridge, with lock chamber extending to the S from the abutments. Single span brick arched bridge with keystones. Chamfered sandstone string course, blue brick parapets and sandstone copings. The parapets continue as curved returns terminating in piers with pyramidal sandstone copings. Steps lead down to the towpath on the E side immediately N of the bridge, and there is a cast iron handle. On the W side to the N is a blue brick projection with sandstone coping which contains the flat arched outflow of the overflow culvert. The lock chamber is of brick with sandstone copings. It is heavily overgrown but contains the remains of timber lock gates at the N end. There are cast iron-lined rebates for gates at both ends. The remains of a cast iron rack and pinion-operated gearing mechanism can be seen at the S end. The brick-lined overflow culvert is on the W side of the lock. To the S it is separated from the canal by a wide low brick wall.