Blisworth Tunnel was the only section unfinished. This was despite the tunnel having been under construction for seven years: the gap was filled by a temporary horse-drawn tramway over the top of the hill, with goods being transported from boat to wagon and back again. The tramway, built in 1801, was Northamptonshire's first railway. In March 1805, the tunnel was finally opened and the rails were used to connect the main line of the canal to the River Nene until the branch canal to Northampton was constructed. Until the 1870s travel through the tunnel was only achieved by men lying on their
Wansford Tunnel Heritage Railway. Just to the west of the tunnel the NVR has opened a new station, Yarwell Junction railway station, which opened to the public in 2007. The hamlet of Sibson is on top of the tunnel. Wansford Tunnel Wansford Tunnel is a railway tunnel on the preserved Nene Valley Railway in Cambridgeshire. The tunnel is situated to the south of the village of Wansford, but just to the west of Wansford railway station. It was on the Blisworth to Peterborough line opened in 1845 by the London and Birmingham Railway. The line originally was double track. Today, however only