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Huge flood relief channel at Newton Abbot


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  • RMweb Gold

Whilst Dawlish is closed, the various affected parties in the rail industry agreed to a request from Devon County Council and their contractors to construct a huge flood relief channel under the main line immediately to the west of Newton Abbot, where the railway is still four tracks wide. This is in connection with the Kingskerswell By-pass (aka the 'South Devon Link Road').

 

In the event, this entailed removing all running lines and digging a huge hole, in which the pre-cast concrete culvert sections were placed. The job started last Friday night and is due to finish this coming Friday at 1600 hrs.

 

Here are a few photos taken by a colleague earlier in the job, plus several taken by me on a site visit yesterday.

 

Here you can see the railway embankment, with the track on the left hand side covered over by large baulks of timber, creating a surface suitable for tracked plant. You can immediately get some appreciation of the size of the hole:

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Another view of the developing hole from a slightly different angle:

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Now to the Sunday morning, and here are several of the pre-cast sections waiting on lorry trailers to be unloaded:

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A giant crane was on hand to lift them in:

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The first section going in on Saturday. This was taken from track level, so you can get some appreciation of the depth of the hole:

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A few more sections are now in place:

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The work continues through the following night:

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Photos from my visit yesterday afternoon. The main site entrance, with the railway boarded over:

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Looking back towards Aller Jct:

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Turning round and looking towards Newton Abbot station:

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By the time I got there, the pre-cast sections were all in place and the team were rapidly filling the hole up again and compacting it down with a large road roller:

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A walk down to the actual culverts (there are three of them):

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Back up at track level:

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This is the old culvert next to the new one:

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View westwards, showing more of the new road construction in the distance:

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The contractor only had around 2 weeks notice of this and had a major panic on to get the concrete culverts as these are made to order, luckily, the northern Irish manufacturer had been making some for another project so they could get all this done whilst the line is closed and so avoid the planed closure for it next Christmas.

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  • RMweb Gold

Considering the number of road schemes that now dump water onto fields next to the line and consequently straight into it that's very heartening to see. I like the fact it obviously has significantly greater capacity than the old one. Top job by all involved in having a plan ready to go and stepping it up so far in advance.

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  • RMweb Gold

Hopefully this job will be handed back a couple of hours early today, in early afternoon (booked at 1600 hrs), more info should be available soon.

 

Well done to all concerned.

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The first thing I thought of when I saw the trench was an old photo I found of the trench that was dug to do a cut and cover section of the Toronto subway. The second thing was the LA River channel - but with Astras instead of real cars... ;)

 

Adrian

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