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Gloucester Docks &
the Sharpness Canal

 

Gloucester & Sharpness Canal


This page describes the general features of the canal - the dimensions, the bridges, the bridgemen's houses and the towpath. The links above lead to pages giving further information on sections of the canal, and the following links highlight specific features:

Two Mile Cut  Saul Marina  Sandfield Stables  Patch Bridge Replacement  Purton Barge Graveyard  Mileposts
 

Dimensions and Bridges

     The canal linking Gloucester and Sharpness docks is often said to be 16 miles long, 16ft deep and to have 16 bridges. In fact it was intended to be 18ft deep in the centre to accommodate the keels of large sailing ships, but it was not dredged to the full depth because in later years steamers had flatter bottoms and the under-water curvature of the bridge-holes became limiting.

     There were originally 16 bridges across the canal and one across Gloucester Lock. Four railway bridges were added later, two at Sharpness also being road bridges. Two road and two rail bridges have been removed, but new road bridges were added in 2007 and 2008, and so the total is currently 18 across the canal and one across Gloucester Lock.

 

Canal Bridges
Fretherne Bridge


New Fretherne Bridge

The original road bridges (such as Fretherne Bridge above) comprised two wooden half-spans which could be swung open to let vessels pass through. One half was opened by a resident bridgeman and the other by a member of the vessel's crew or a passman accompanying the vessel along the towpath. (PC Glos Arch)
 

The old wooden bridges have all been replaced by single-span steel bridges operated by one man. Most of these are opened by the bridgeman turning a handle, but some (such as the new Fretherne Bridge above) are powered by electric motors. Sadly, the graceful arch of the wooden bridge has not been replicated.
 

Bridgemen's Houses
     
Eight of the bridges have classical-style bridgemen's houses nearby. These were built in the 1840s when competition from the railways made it important to have men on hand to open the bridges at night so that vessels could meet the tides at Sharpness. At that time, the other bridgemen lived in existing houses that were close enough to their bridges. Most of the houses are now in private ownership and are not occupied by current bridgemen.

Fretherne Bridge House

Fretherne Bridge House

The classical-style bridgemen's houses were originally symmetrical in plan with gables on each elevation. Each had a living room, one bedroom, a scullery at the back and a porch with Doric columns at the front. (PC M Boakes)
 

In later years, the houses have been extended to provide more accommodation and modern facilities. From the canal, however, Fretherne Bridge House has hardly changed, as the alterations have been confined to the basement and the rear.
 

Towpath
     Vessels were originally towed along the canal by horses, but their use declined after steam tugs were introduced in 1860. The towpath is nominally open for walkers and cyclists along the whole length, but there are occasional stoppages which are noted on the Access page. Most of the original mileposts are still in-situ, showing distances from Gloucester and from Sharpness, and missing ones have been replaced. There are also many white checking posts along the towpath, intended for taking a check-rope when necessary to correct the course of a vessel in the narrow channel.

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