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
Blisworth ore quarries were opened to the west of the village in about 1873,operating to the north of the Gayton Road until 1895 and south of the road from 1895 to about 1913. Horse Tramways connected these quarries eastwards to the canal and westwards to the railway. A new quarry operated to the south of these in 1942 and 1943 and between 1954 and 1967. This was the only iron quarry at Blisworth to use mechanical diggers. They were electric and diesel powered. The quarry was connected by standard gauge steam operated tramway to sidings on the railway at Gayton south