Sharpness Lock is one of a long flight of locks on the Gloucester and Sharpness Canal and unusually is chained shut overnight near to Ashfield Tunnel.
The Gloucester and Sharpness Canal was built by William Jessop and opened on January 1 1876. Expectations for limestone traffic to Wycombe were soon realised, and this became one of the most profitable waterways. Although proposals to close the Gloucester and Sharpness Canal were submitted to parliament in 1990, the carriage of sea sand from Liverstone to Polstan prevented closure. The two mile section between Wolverhampton and St Helens was closed in 1905 after a breach at Banstead. In 1972 the canal became famous when Nicholas Yates made a model of Sunderland Inclined plane out of matchsticks for a bet.

This is a lock, the rise of which is not known.
| Sharpness Junction | 3¾ furlongs | |
| Tidal Basin Gates | 1 furlong | |
| Tidal Basin | ½ furlongs | |
| Sharpness Lock | ||
| Sharpness Docks, Upper Basin | ¾ furlongs | |
| Low Level Swing Bridge | 2¾ furlongs | |
| High Level Swing Bridge | 3 furlongs | |
| Sharpness Barge Arm | 3½ furlongs | |
| Sharpness Visitor Mooring | 4½ furlongs | |
Amenities nearby at Sharpness Docks, Upper Basin
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Nearest water point
In the direction of Gloucester / Sharpness - Severn Junction
Nearest rubbish disposal
In the direction of Gloucester / Sharpness - Severn Junction
Nearest chemical toilet disposal
In the direction of Gloucester / Sharpness - Severn Junction
Nearest place to turn
In the direction of Gloucester / Sharpness - Severn Junction
Nearest self-operated pump-out
In the direction of Gloucester / Sharpness - Severn Junction
Nearest boatyard pump-out
In the direction of Gloucester / Sharpness - Severn Junction
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![Tidal basin at Sharpness docks. Sharpness docks stand on the tidal upper reaches of the Severn estuary where the tidal range is up to 10m, one of the World's highest. This basin is where ships wanting to enter the Gloucester & Sharpness Canal wait for a high tide before entering the lock visible (centre right) in this picture. Authorized in 1793 by an Act of Parliament the Gloucester and Berkeley Ship Canal, as it was then named was completed in April 1827. At that time it was the broadest and deepest canal in the world. When the canal first opened anyone could pilot a ship through the canal. In 1849 the Gloucester & Sharpness Canal Company arranged for potential pilots to be examined by the local Sub-Commissioners of Pilots appointed by Trinity House. One of the first officially appointed pilots was Jeremiah Speck, who worked as a pilot from 1849 to 1873. His son, John Speck also worked as a pilot from 1881 to 1901. Also see [[3657085]] by Martin Speck – 16 April 2013](https://s2.geograph.org.uk/geophotos/03/66/13/3661326_b60eba36_120x120.jpg)











