Description
Officially called Todmorden Library Lock, No 19. The road goes over the canal by means of the Golden Lion Bridge.
The road was widened here in the 1920s; to allow the lock to remain full length it is believed that a guillotine, or vertically rising, gate was installed. This vertically-rising gate takes up much less space than the conventional mitred gates at the head of the lock. The lock chamber itself can be shorter, as there is no need for room for the gates to swing inwards, nor is there need for space for the balance beams to be moved.