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Similar Lock Arrangement Like This?


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Wey navigations there are several examples of this. I suppose the reaches are longer though.


Also the bit between Copper Mill and Black Jacks on the GU is similar in a way with the Colne (?) going in and out but not sure if it follows the original course of the river.

Edited by magnetman
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34 minutes ago, Loddon said:

But that's all river 😱

But it's all a continuum really, with canals crossing rivers on the level at one end, through to river navigations with increasingly long man-made lock cuts, through to full artificial canals at the other.

Many river navigations have over time gone from navigating the natural course of the river with perhaps a few flash locks, to increasing lengths of artificial lock cut, bypassing more and more of the original course, ending up as essentially man-made canals with a few river sections.

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Beeleigh on the Chelmer & Blackwater? The navigation crosses the Blackwater on the level and results in the unusual combination of the flood lock being downstream of its associated lock as the river is between them. 


I've a feeling Lordings on the Arun was similar? 


It is however not a common arrangement - Aynho Weir lock and Nells Bridge are the closest I can think of, and Nells Bridge is quite a distance from the crossing 

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Yes the Derby Canal did cross the Derwent, at Derby, and this link had locks on both side of the river and what is credited with being the first iron aqueduct over the mill stream south of the Derwent.


The Churnet was also crossed by the Caldon Canal in a similar fashion to the Uttoxeter although the engineer was different. With the Uttoxeter the engineer was John Rennie, senior and with the Caldon the final credit is best placed with Hugh Henshall and his staff.


There is also the rarer case of a lock down to a river and the river being navigable for a short section. With the Derwent and the Derby Canal there was a separate lock to enable craft to reach parts of the Derwent at Derby and near  Wilden there was a lock that enabled narrowboats to pass from the Staffordshire & Worcestershire Canal and the Stour

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On 16/09/2022 at 09:14, Jen-in-Wellies said:

Between River lock and Jordan lock on the Sheffield and South Yorkshire. Again, a longer stretch of river between the locks, but functionally identical.




Historically that was more or less a crossing, the canal downstream of Tinsley was on the other side of the valley. 

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1 hour ago, magpie patrick said:

Historically that was more or less a crossing, the canal downstream of Tinsley was on the other side of the valley. 

Do you have a map of that arrangement? Would be interested in seeing it. The area changed a lot, as more canals were cut to make the river easier to navigate, then railway construction shifted the route. I know about the area further east, Iccles to Rotherham town and how the railway altered that, but not what is now the most upstream navigable bit of the Don, River Lock to Jordan. There would have been a wharf around there, before the Sheffield and Tinsley was built, but where, I don't know.


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