Trench Lock Interchange is a junction in Telford. It was originally to be called Trench Lodge Interchange but the name changed before construction began. The layout of the junction also changed from the original proposals. There would have been one large roundabout to the north of the railway line with the A442 passing beneath the junction and railway. The junction as built allows for the A442 to pass over both roundabouts and the railway although it's extremely unlikely the flyover will ever be built.