Saturday 18 May
Another wet start, first off we brought the rest of the pallet of bricks down so they are ready for starting on the up side cess headwall.
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Michael unloading the bricks |
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Concrete footings have set |
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That will teach Roger to have a day off 😉 |
Then the real work begins, only 3 of us here today, quite a difference from the 7 we had on Thursday. We concentrated on digging out the old salt glazed gully pipe, we're doing this early in the project to keep the track under the bridge drained. There's not much more to say about digging a pipe out, the pictures will tell the story.
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Alastair and Michael picking |
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The gully drain end is wet |
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First pipe out |
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Alastair pump the water out after the digging is done |
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The pipe in the barrow is how it was in the ground (Photo: Alastair) |
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Michael gently removes the only 2 good pipes in the whole run |
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Last bits coming out (Photo: Alastair) |
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The north side wall top is cleared (Photo: Alastair) |
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Stuart digs out the end round the wing wall (Photo: Alastair) |
The new twinwall pipe was dropped into the trench to check the length, we'll take some levels next week to make sure there is a fall on the pipe
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Gully at the end of the brick arch |
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Pipes in the trench ready for cutting to size |
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Outlet end, a bend needs to go on here |
The spoil heap is always a good reminder of how much has actually been dug out. This will be used later to backfill the new pipe on the down side cess.
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Not bad for couple of days work |
On the way out we dropped the new lids onto Chamber 3 on the down side crest. It's a shame all Michael's brick laying so far has been hidden by lids.
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Chamber 3 headers |
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Chamber 3 with the lids in place |
Back at base there was a couple of surprises, first there was a bag of milepost number patterns, thanks to Eddie and the woodwork team. We now need to get some moulds made so that the numbers can be cast.
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What! no 6's |
James from the C&W metal work team has nearly finished the covers for the inlet end of the siphon at Culvert 7A. Next job is to take it up to Stanton for a trial fit and work out the best way to fix them onto the walls.
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2 cover sections hiding behind some corridor connector sides |
Thanks again to the Carriage and Wagon volunteers for all their efforts, it's a great demonstration of the skills we can call on and the interdepartmental co-operation that thrives on the railway.
A lot of graft there gentlemen, can't make out as there is two drainage systems side by side.
ReplyDeleteThe gully drain top is below the high water level in the culvert channel, so of we tapped into the culvert then the water would run out onto the road making the flooding worse. The gully is to drain the roadway so it runs parallel until it can drain into the stream below the end of the culvert.
DeleteIf we lowered the culvert that would mean rebuilding the bridge abutment as we would probably be below the foundations.
It's easier to see when you look at a cross section
Could you not have gone through the half pipe wall from the drain, less possibility of the pipe being crushed by tractors?
ReplyDeleteSee reply above, that explains it
DeleteHi
ReplyDeleteDon't forget your iPhone has a level (or inclinometer) built in
https://youtu.be/4mJh94Cm3zw which I only found recently...
Eric
You need to download it for Android phones - We could do it with a spirit level but the laser level is best in this environment
Delete