Bridge 148 and Byles Lock

Bridge, with lock chamber extending to the S from the abutments. Single span brick arched bridge with keystones. Chamfered blue brick string course and concrete copings. The deck slopes down to the E where the ground level is lower. The parapets have splayed ends terminating in piers with pyramidal copings. Steps lead down to the towpath on the E side immediately N of the bridge. The lock chamber is of brick with sandstone copings and has restored timber lock gates at each end. The N swing gates are attached to original cast-iron lined rebates by iron straps and display a cast iron plaque reading 1979. The S gate is attached by a bracket to the E side and there is a cast-iron lined rebate in the W side. In front is a cast-iron trough with wooden stop planks set in cast-iron rebates in front of that. The remains of a cast iron rack and pinion-operated gearing mechanism can be seen at the S end beyond the S gate. The brick-lined overflow culvert is on the W side of the lock. A simple timber access way has been constructed over the lock to the S of the S parapet.