Braunston Tunnel ft (2.13 m) beam boats to pass. There are three air shafts along its length. The tunnel passes underground alongside another Grand Union Canal feature, Drayton Reservoir, from which the feeder enters the canal at the east end of the tunnel. Braunston Tunnel Braunston Tunnel is on the Grand Union Canal about 830 yds (760 m) east of Braunston, Northamptonshire, England top lock. It is in the northern outskirts of Daventry, about 2 km east of the village of Braunston. Braunston Tunnel is 2,042 yards (1,867 m) in length. Built by Jessop and Barnes, the tunnel has no towpath and
Cincinnati and Whitewater Canal Tunnel with wing walls. Upon completion, the tunnel was long, and there was between the ceiling and the underwater bottom of the canal. Unusually, the tunnel included room for a towpath instead of requiring the use of leggers, but the typical canal boat nevertheless relied on manpower while allowing the beasts of burden to climb the hill. As the state's first tunnel of its type, the Cincinnati and Whitewater Canal Tunnel has suffered two separate collapse incidents. The first occurred during the construction process, and six workmen died, while another segment caved in during the 1950s during a project to improve