Carry on guys!

The lack of a blog entry in the past month is not indicative of lack of activity of the team. Just that the chief blogger (and team leader) was on holiday.

Thursday 9th June 

Four team members in attendance. The main task of the day was continuing with the cess chamber rebuilds at Dixton Cutting. The two chambers temporarily left with blue GRP lids from the previous week were finished off. Three chambers worked on and again left with temporary blue GRP lids for finishing off next week after the mortar has set.

Even with temporary blue GRP lids, the rebuilt chambers look neater. (Photo by Dave.)

The vegetation and ballast around the next chamber on the down side was cleared, this chamber appears to be below a small historic slip and to be the outlet for water draining from the slipped ground via French drains.

Site of an old slip on the down side. (Photo by Dave.)

The rebuild of the small headwall behind the down side chamber immediately north of Dixton Road bridge was progressed. The back needs a top course of bullnose bricks and the sides to be built up with staggered imperial solids.

Rebuilding the retaining wall which supports a counterfort drain leading down from a roadside ditch on Dixton Road. This was the site of the pea gravel wash out in late December 2020. (Photo by Dave.)

The trailer for the dumper and digger arrived at Winchcombe. Just now awaiting a new electrical socket to be fitted, and hen it will be ready to roll! 

Thursday 16^th June 

With six team members in we should have been able to complete 50% more than last week! However the hot weather meant a curtailed working day. Once again the main task was to progress the cess chamber rebuilds at Dixton Cutting. (I hope you readers are not getting too bored with this!) The three chambers bearing temporary blue GRP lids from the previous week were finished off. The down side chamber below the old small landslip was repaired. About half the top course of bricks were replaced with blue engineering bricks and the chamber topped with a GRP lid, ready for the application of a concrete ring and lids once the mortar has set.

Down side, two chambers on low mileage side of Dixton Road bridge. (Photo by Dave.)

On the up side, one chamber required only the replacement of three bricks along the front of its top course. This was again left topped with a temporary GRP lid prior to later finishing with a concrete ring and lids. Another up side chamber required only the reseating of a few of its original top course of brick, making it so far the best condition chamber we have encountered. It was then topped with a flaunched concrete ring and temporary GRP lid.

Up side, the best condition chamber so far, just three bricks to reseat. (Photo by Dave.)

The bricklaying part of the rebuild of the small headwall behind the down side chamber on the low-mileage side of Dixton Road bridge was completed with the use of reinforcing concrete blocks and bullnose headers. Final completion will involve concrete backfilling between the wall and the cutting side. As this involves barrowing concrete across the line, this will be undertaken on a Monday when no passenger trains run and we can have an engineering possession of the Winchcombe to Gotherington section.

Putting the finishing touches to the small retaining wall; ready for concrete backfill next time. (Photo by Dave.)

We are now approaching the Tirle Brook flume culvert (32A) and while in the area, moss and other vegetation were cleared from the concrete deck on the down side.

Down side (inlet) of the Tirle Brook flume culvert (32A) cleared of weed. (Photo by Jonathan.)

Regarding our new (to us) trailer for transport of the dumper or digger, there continued to be a problem with the lights when hitched to the Isuzu pickup. This is puzzling as the lights were reported to have been working when tested earlier. 

Monday 20^th June

A small team of three in, unusually on a Monday, to barrow concrete across the track at Dixton Cutting on a passenger train-free day. The forecast 'perfect English summer's day' turned out to be a bit too hot — maybe it was the microclimate in the cutting. The rebuilt retaining wall behind the down side chamber just north of Dixton Road bridge was backfilled with concrete, completing work on this chamber.

Concrete backfill complete on the rebuilt small retaining wall. All engineering blues this time! (Photo by Dave.)

Concrete mixing operation on the site of the former up line, barrow crossing in foreground. Hence the need for an engineering possession. (Photo by Dave.)

Some further work was done on other chambers. On the up side, one chamber was completed by the replacement of a temporary blue lid with its original concrete lids.

The wire for the Gotherington down distant signal unfortunately aligns with the edge of most of the chambers on the up side. (Photo by Dave.)

Another was progressed by the addition of a concrete ring, temporarily topped with a blue lid while the mortar sets. On the down side, a concrete ring was also added to one chamber, which was again topped with a temporary blue lid. Loose and damaged bricks were re-laid and replaced at a further chamber, before covering with a blue lid prior to application of a concrete ring.

Down side - another one complete, blue GRP cover will go on temporarily to be replaced with the original concrete lids when the mortar sets. In this summer heat that will be only a few hours - but past knocking off time! (Photo by Dave.)

The next down side chamber was also investigated. This has a top course of red engineering bricks in very good condition, but the mortar holding them in place has totally failed.

Good bricks, but where has the mortar gone? (Photo by Dave.)

Finally, our resident botanist spotted the common spotted orchid, also known as the heath spotted orchid (Dactylorhiza fuchsii), growing on the slipped land on the down side. Perhaps it was enjoying the microclimate more than we were! It does however show that the GWSR bio-diversity plan is having benefits.

Dactylorhiza fuchsii (and daisies) in Dixton Cutting. (Photo by Roger.)

 

Thursday 30^th June

As often happens, we get a request to attend to something unplanned. Hence today we gave Dixton cutting a rest, and the three team members headed to the crest of the down side cutting between Winchcombe and Greet tunnel. We had been requested to replace a missing cover on a chamber in the farmer's field close to our fence.

Chamber in neighbour's field by the hedge obscured by vegetation. (Photo by Dave).

Cut back the vegetation and the bridge rail cover is revealed. (Photo by Dave.)

Rebuilt with concrete rings and steel grating. (Photo by Dave).

The outlet from the chamber runs under our fence and joins our drainage system. Three concrete rings, topped with a metal grating, were fitted to this chamber. 

The team then tackled two more chambers in the same area inside the railway fence line, replacing bridge rail used as covering with concrete rings and metal gratings.

Inside the railway boundary, a similar chamber. (Photo by Dave.)

Also rebuilt with concrete rings and metal grating. Unfortunately the lengths of bridge rail previously used as a cover are too short for use as milepost uprights. (Photo by Dave.)

Thursday 7^th July

Unlike the UK Government, there were no resignations in our team today! With six members present, we split into two teams, with four going back to Dixton Cutting to continue chamber renovations, while the other two returned to last week's site of operations, the down side between Winchcombe Station and Greet Tunnel, where discovery and reconditioning of crest chambers were the tasks.

On the down side at Dixton Cutting, most of the top course of bricks on one chamber had to be relaid.

Down side at Dixton, relaying the old red engineering bricks. (Photo by Dave.)

Dixton Road bridge is getting further away! From this point there are fewer chambers on the up side. Will we finish at Dixton before the end of the summer? (Photo by Dave.)

While at the next chamber only the replacement of a few and the filling of the hollows in the top course of bricks with mortar were necessary.

An easy one to deal with. (Photo by Dave.)

No need for a temporary blue GRP mesh cover here. (Photo by Dave.)

The next chamber was also investigated: the brickwork looks to be in generally good condition, but the filling of the hollows in the top course with mortar is needed.

Bricks OK, but hollows need filling. On rebuilt chambers the top course of brick are laid vertically, not horizontally. (Photo by Dave.)

On the up side, the next chamber in the run required only the replacement of two bricks and the installation of a concrete ring.

Up side - again the biggest problem is working around the distant signal wire. (Photo by Dave.)

Replacement bricks are blue engineering, but that will not be noticeable once the concrete ring and covers are in place. (Photo by Dave.)

The next chamber will require some brickwork replacement and the repair of the brickwork around the pipe entry point at the high mileage end of the chamber.

High mileage pipe entry needs attention. (Photo by Dave.)

The signal wire is a bit further away from this one - but not by much! (Photo by Dave.)

As the flow of water through this chamber is so low, and rain is not forecast in the coming week, we hope that, next week, the water in the chamber can be pumped out and the work done, with the mortar going off before any interference from returning water.

As we approach the ant swarming season, our activities disturb more ants every week. On this evidence, they appear to be doing well enough and not in need of nesting season protection, unlike our feathered friends.

Ants nest. (Photo by Dave.)

The smaller team at Winchcombe Down Side Cutting Crest uncovered a third chamber with the aid of the bulldozer blade on the mini digger. They then used the wide bucket to clear the vegetation. The bridge rail covering was replaced with a concrete ring and metal grill, both brought to the site by a combination of the Thwaites dumper carrying them up the more even, field side of the fence and the Telehandler lifting them over the fence and hedge. (Good proof that a variety of mechanical plant is required for some of our tasks).

Further investigation along the crest revealed the start of the crest drain which was simply a hole in the ground (no chamber) on the railway side of the fence where the pipe from the repaired chamber on the farmer's land joins. This was cleared and dug out with the excavator arm of the mini digger.

The mini digger makes uncovering these chambers easy work. (Photo by Jonathan.)

Broad gauge bridge rail used as covers. Probably these chambers were added during the drainage work BR(W) undertook at Winchcombe in the 1950s. (Photo by Jonathan.)

 

 

Where the pipe from the chamber in the farmer's field enters the crest drain. (Photo by Jonathan.)

Concrete ring added, metal grates to go on. (Photo by Jonathan.)

Searching for the crest drain, entry without headwall in foreground. Building a headwall here is now on our outstanding task list!  (Photo by Jonathan.)

Holiday snaps

The team leader’s boating holiday this year included visiting the Montgomery and Llangollen Canals. Currently the Montgomery is navigable only as far as Gronwyn Bridge near Maesbury Marsh. We explored some the section to Welshpool by road and then took a trip on the Welshpool & Llanfair Railway (Rheilffordd y Trallwng a Llanfair Caereinion). The mileposts were of particular interest.

Taken from the rear balcony of a former Zillertalbahn coach; the winding nature of the WLLR is very apparent.

Interesting the mileposts on the WLLR are painted black with white numbers, dividers and quarter marks. Mp 9 on Llanfair Caereinion platform could be closely inspected. GW broad gauge bridge rail for the post; but the head is a reproduction in plastic!

The Llangollen Railway was operating a reduced service with a class 47 diesel only as far as Carrog. Hopefully steam hauled trains all the way to Corwen will commence next year.

The headshunt at Llangollen is just long enough for a Brush Type 4. Getting the Mk I coach into the bay is probably fun!