Blisworth Tunnel sections lined with pre-cast concrete rings. It was also used to test out the materials that were later used on the Channel Tunnel. An unused ring is on display near the south portal. Blisworth Tunnel Blisworth Tunnel is a canal tunnel on the Grand Union Canal in Northamptonshire, England, between the villages of Stoke Bruerne at the southern end and Blisworth at the northern end. The northern end is about from the northern end of the Grand Junction Canal at Braunston, Northamptonshire and the southern end about . At 3,076 yards (2,813m) long it is the third-longest navigable canal tunnel
Blisworth canal, the ore was loaded by hand into canal boats for transport to Staffordshire.This quarry closed in 1855 but was reopened in 1859 closed again in 1861 and reopened in 1863. At this time the ore was taken by horse and cart through the village to be loaded into railway wagons at Blisworth Station. In 1863 however the tramway was reopened and canal boats took the ore to Blisworth Station for transhipment to railway wagons. Steam cranes were installed at the canal wharf and at the station. The ore was now taken to South Wales. In 1903 the ore was