Blisworth Blisworth Blisworth is a village and civil parish in the South Northamptonshire district of Northamptonshire, England. The West Coast Main Line, from London Euston to Manchester and Scotland, runs alongside the village partly hidden and partly on an embankment. The Grand Union Canal passes through the village and the north portal of the Blisworth tunnel is near Stoke Road. It is about south of Northampton, north of Towcester and north of Milton Keynes. The M1 motorway junction 15 is about north east. The 1961 census showed a population of 1,192. By the 2001 census there were 1,786 people in the
Netherton Tunnel Branch Canal was later converted to electricity and it is now unlit. The air vents that run along the line of the tunnel and provide ventilation, and a shaft of light into the canal, are known by the locals as "pepper pots", because of their shape. They are brick-lined and the openings are covered by an iron frame or grill. The wide bore and good ventilation mean that boats using the tunnel today are allowed to use the power of their internal combustion engines, which is prohibited in the narrower Dudley Tunnel. The tunnel cost £302,000 as opposed to the £238,000 estimate