Blisworth Tunnel has no tow path inside, but is wide enough for two narrowboats to pass in opposite directions. Work began in 1793, but errors by contractor left a wiggle in the tunnel, and after three years work it collapsed due to quicksand, claiming the lives of 14 men. It was then decided to begin again with a new tunnel. By the time the rest of the Grand Junction Canal had opened between London and Braunston, Northamptonshire in 1800, apart from the crossing of the River Great Ouse, the section of canal from Blisworth to the lower end of Stoke Bruerne locks
Kessler Tunnel tunnel until 1975 and the rail line was abandoned that same year by the Chessie System, which had taken over the WM and combined the WM's operations with those of the B&O. The National Park Service acquired the tunnel and adjacent portions of the WM right of way in 1980. The site is part of Chesapeake and Ohio Canal National Historical Park. Kessler Tunnel Kessler Tunnel is an abandoned railroad tunnel in Allegany County, Maryland, located about east-northeast of Oldtown. It was built by the Western Maryland Railway (WM) in 1906. It was constructed with concrete arch portals and the