How long is harecastle tunnel




















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Harecastle Tunnel is the term referring to 2 canal tunnels on the Trent and Mersey Canal at Kidsgrove in Staffordshire. It is made up of two separate, parallel, tunnels named after the engineers that constructed them.

The first, by James Brindley , known as Brindley , is 2, yards long, and the second tunnel, Telford , is 2, yards long. The Brindley tunnel was constructed between and Brindley died during its construction. At the time of its construction it was twice the length of any other tunnel in the world. It took 11 years to complete.

To construct the canal, the line of the tunnel was ranged over the hill and then fifteen vertical shafts were sunk into the ground. It was from these that heads were driven on the canal line. A major problem was the change in the rock type which ranged from soft earth to Millstone Grit.

The construction site was also subject to flooding regularly, a problem which was overcome by the construction of steam engines to operate the pumps. Stoves were installed at the bottom of upcast pipes to overcome the problem of ventilation. The tunnel had no towpath and so boatmen had to leg their way through the tunnel, lying on the roof of their boat and pushing on the sides of the tunnel with their feet.

It could take up to three hours to get through the tunnel. The horses which towed the boats were led over Harecastle Hill via 'Boathorse Road'. A lodge Bourne Cottage was built by the side of the squire's drive at the point that the boat children crossed it, to prevent them straying up towards Clough Hall. The tunnel was twelve feet tall at its tallest point and was nine feet wide at its widest, which proved to be too small in later years.

The tunnel suffered subsidence in the early 20th century and was closed after a partial collapse in Due to the amount of traffic and the slow process of legging, the Harecastle Tunnel was becoming a major bottleneck on the canal. As the Telford tunnel is only wide enough for a single boat, canal traffic is managed by sending alternating northbound and southbound groups of boats through the tunnel.

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