Barge Canal Locks.
basil | 11/13/2005 | 10:00 pmDroitwich Barge Canal locks.
When James Brindley designed the Droitwich Barge Canal he, like his contemporary builders, did not have total confidence in mass brickwork. He incorporated a timber frame in to the structure to anchor it back to the bank behind. Old local Churches have timber lintels in the brickwork, and the City Guildhall has quite a lot of timber, this was not to save bricks which were cheap, but to spread the load. My late brothers house at Norgrove Court, Bentley is reputed to be one of Britain’s first all brick houses.
When we started restoration and removed the hundreds of tons of silt it was discovered that large areas of the facing brickwork were softened by winter frosts and had to be removed.
Bricks made at Salwarpe were not fired to high temperatures and were of a poor quality.
At Porters Mill Lock the house residents have been running their sewage into the ground behind the lock wall for over sixty years and now the frame has collapsed and the wall is falling inwards. No doubt their insurance company will fund the restoration.
In the 1850’s the locks were extended at the top end. here the brickwork is excellent and holds the structure solidly.
All the lower lock gates are tapered and lean downstream from the top, this was Brindleys method of creating a self closing gate. Never having created a structure of this size he built a lock in his garden at New Hall, Staffordshire, but sadly it was destroyed by developers.
The Droitwich Locks are a historical monument to the brilliance of Brindley. Max