The Sapperton Canal Tunnel is a tunnel on the Thames and Severn Canal near Cirencester in Gloucestershire, England. With a length of 3,817 yards (3,490 m), it was the longest tunnel of any kind in England from 1789 to 1811.
Construction, following an Act of Parliament, began in 1784. Twenty-six shafts were dug along the line of the tunnel and workfaces dug in each direction eventually joining up before the diameter of the tunnel was expanded. Difficulties were encountered related to strata of Great Oolite (solid limestone) and Fuller's Earth clay. These caused roof falls and narrowing of the channel which continued after the tunnel opened in 1789 and required frequent maintenance. The stone portals at either end are listed buildings.
Boats passed through by legging until 1911. The canal was abandoned by 1933 and subsequent roof falls mean that it is no longer navigable. Cotswold Canals Trust have proposed restoration.
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complete the SappertonTunnel project, not entirely at his own fault. Jones was again dismissed in 1789 after the quality of the tunnel work was criticised...
Thames and Severn Canal company in 1788 after failing to complete the SappertonTunnel project; in his defence, he had been asked to build it bigger than...
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an engineer. His first major project included the SappertonTunnel on the Thames and Severn Canal, which despite huge engineering difficulties, gained...
engineering firsts, including assisting his father in the building of the first tunnel under a navigable river (the River Thames) and the development of the SS Great...
is most famous for the work he did in Britain. He constructed the Thames Tunnel and was the father of Isambard Kingdom Brunel. Born in France, Brunel fled...
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