After some , the river continues straight ahead, and another cut begins, turning sharply to the right. Soon the remains of Brambridge Lock are reached, which include a derelict eel trap. The design of the gates, which included vents near the top of the structure, to allow surplus water to pass through, was clearly shown in a drawing dating from 1880. Below it were Brambridge Single Gates, probably used to maintain water levels for a mill, of which some brickwork remains. There were hatches to allow water to return to the river channel either side of the gates, one of which is now a modern sluice. The navigation runs along an embankment for about , which is high, before it reaches Allbrook Lock. This was moved in 1838, when the railway line was built, and was repaired in 1944. It has a chamber built of bricks, whereas the other locks are turf-sided. A bridge carries the B3335 over the tail of the lock, having been widened since it was first built. At the head of the lock is a gauging station, where the Environment Agency measure the flow and level of the water.