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Locks

First slide
Blunder Lock
Second slide
Newtown Lock
Third slide
Ryeford Double Lock
Fourth slide
Ebley Flood Gate
Fifth slide
Dudbridge Lower Lock
Fifth slide
Dudbridge Upper Lock
Fifth slide
Wallbridge Lower Lock
Fifth slide
Wallbridge Upper Lock
Fifth slide
Bowbridge Lock
Fifth slide
Griffin Mill Lock
Fifth slide
Ham Mill Lock
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In the navigable sector of the canal which runs from the slipway at Easington through to Hope Mill, there are four single locks and one double lock on the old Stroud Water Navigation and five locks on the Thames & Severn Canal.

For those on the Stroud Water Navigation, nominal lock dimensions are 70’ long by 15’6” wide and on the Thames & Severn the nominal dimensions on the locks from Wallbridge to Bourne Lock are 74’ long by 15’6” wide. With the exception of Ryeford Lock, all of the locks are traditional double gated wide locks easy to operate, consistent with the rest of the National Navigation System.

General instructions for operating a lock can be found here. Note that you will require a windlass with two holes to operate Newtown and Blunder locks.

Blunder Lock
What 3 Words: ///growl.leap.mango

This has a rise of 2.2m (7.5’) and was restored in 1992.

Currently there is no landing stage available on either side of this lock.

Newtown Lock
What 3 Words: ///tradition.radically.stage

Newtown Lock is 0.44km east of Blunder Lock and has a rise of 2.2m (7.5’).

Currently there is no landing stage available on either side of this lock.

Ryeford Double Lock
What 3 Words: ///levels.floating.sprinter

This lock was restored in 2012 and is the only double lock on the Stroudwater Navigation. The lower half has a rise of 2.5m (8.5’) whilst the upper half also has a rise of 2.5m (8.5’).

This lock is 3.37km east of Newtown.

Ebley Flood Gate. (Not a lock)
What 3 Words: ///cored.sobs.briefer

This is a single gate designed to prevent flood waters leaving the river section and passing down the canal. Excess water being directed into the River Frome at the new Ebley Weir.

Ebley Flood Gate should be left closed but with one paddle left half up. This paddle is normally locked in position.

Full instructions on the flood gate and surrounding locks can be viewed here.

Dudbridge Lower Lock
What 3 Words: ///drain.steaming.defaults

This lock was recommissioned in 2013 and has a rise of 2.6m (8.7’).

It is 1.78km east of Ryeford Upper Lock.

Dudbridge Upper Lock
What 3 Words: ///chapels.ounce.code

This lock was recommissioned in 2013 and has a rise of 2.6m (8.7’).

It is 1.78km east of Ryeford Upper Lock.

Wallbridge Lower Lock
What 3 Words: ///reception.manicured.ditching

This locks restoration was completed in 2018 and has a rise of 2.7m (9’).

It is approximately 2km from Dudbridge Upper Lock.

Wallbridge Upper Lock
What 3 Words: ///vanish.snored.emporium

This lock was restored in 2012 and has a rise of 3.3m (11’) and is 0.22km from Wallbridge Lower Lock.

Bowbridge Lock
What 3 Words: ///shunning.along.dinner

This lock was fully refurbished in 2018 and is unusual in having short balanced beams. Extra strength will be needed!

It has a lift of 3m (10’) and is 1.21 km from Wallbridge Upper lock.

Griffin Mill Lock
What 3 Words: ///difficult.grudges.potato

This locks restoration was completed in 2018 and is 0.62km east of Bowbridge Lock. It has a lift of 3m (10’).

Ham Mill Lock
What 3 Words: ///major.enough.whom

This lock is the furthest most lock on the extent of the navigable canal.

It is 0.57km from Griffin Mill Lock and has a lift of 2.7m (9’).

Important Information

Dudbridge Upper Lock

IMPORTANT:
Dudbridge Lower Lock is currently closed to all boats pending the repair to defective chamber walls. The lock is being kept full in the meantime. Booked and supervised infrequent passage of boats with no crew on board may be possible, but only if there is a compelling reason, prior to repair work starting.

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