Ross-on-Wye

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Ross-on-Wye

The Flood Alleviation Scheme Work 2008

1st February 2009

Spillway

The spillway is now nearly complete and the bank has been lowered. A small concete barrier has been formed in order to prevent the bank from being washed out in the event of a flood.

The spillway (01-02-09)
The spillway
(Click for a larger image)
The spillway bank (01-02-09)
The spillway bank
(Click for a larger image)

The Bund

The works on the bund are now complete and the access way off the A40 bypass has been removed.


22nd December 2008

Homs Road
The Homs Road car park (22-12-08)
The Homs Road car park
(Click for a larger image)

Work on the rising shaft is now complete and only the final tidying up phase is required to complete the works at the Homs Road Car Park. The car park has now been reinstated, the footbridge over the brook rebuilt and the excavation equipment removed.


The reinstated Homs Road car park (22-12-08)
The reinstated Homs Road car park
(Click for a larger image)

The new footbridge is slightly further upstream than the original one. This is because of the length of the bank area needed to allow for the exit grill.

The Homs Road footbridge (22-12-08)
The Homs Road footbridge
(Click for a larger image)

The view up stream at the exit of the rising shaft (22-12-08)
The view up at the exit of the rising shaft
(Click for a larger image)
The view from the bridge of the exit of the rising shaft (22-12-08)
The view from the bridge of the exit of the rising shaft
(Click for a larger image)

19th October 2008

Kings Acre

The top of the falling shaft has now been covered over and the car park reinstated. The main area of remaining work is at the rising shaft at Homs Road.

The reinstated Kings Acre car park (19-10-08)
The reinstated Kings Acre car park
(Click for a larger image)

10th October 2008

Kings Acre

Works on the top of the falling shaft have been continuing.

The falling shaft cap (10-10-08)
The falling shaft cap
(Click for a larger image)

4th October 2008

Kings Acre

The falling shaft has been capped over as preparations to reinstate the car park continue.

The falling shaft cap (04-10-08)
The falling shaft cap
(Click for a larger image)

22nd September 2008

Homs Road
The rising shaft (22-09-08)
The rising shaft
[Courtesy of Nuttall's]
(Click for a larger image)

This is the view down the rising shaft. The supplied and machinery etc that were needed to support the tunnelling machine are in the process of being removed. The tunnel, and completed mouth, is at the top of the shot. At the bottom is the now blocked off back shunt.


15th September 2008

Homs Road

The top of the rising shaft is being worked on so that the final structure around the top of the shaft can be built.

The top of the rising shaft (15-09-08)
The top of the rising shaft
[Courtesy of Nuttall's]
(Click for a larger image)

5th September 2008

Kings Acre
The weir chamber in flood (05-09-08)
The weir chamber in flood
[Courtesy of Nuttall's]
(Click for a larger image)

During the heavy rains that have recently fallen, the River Wye has flooded but even so there is still around 200mm between the top of the weir and the water thus indicating that very heavy rainfall will be needed to cause the tunnel to come into use.


3rd September 2008

Kings Acre

These are some further pictures of various parts of the tunnelling machine just prior to them being removed from site.

Sections of the tunnelling machine (03-09-08)
Sections of the tunnelling machine
[Courtesy of Nuttall's]
(Click for a larger image)
Sections of the machine (03-09-08)
Sections of the machine
[Courtesy of Nuttall's]
(Click for a larger image)

30th August 2008

Kings Acre

This is the top of the falling shaft. The entrance to the culvert that goes off to the Broadmeadows Industrial Estate and the weir can be seen.

The falling shaft (30-08-08)
The top of the falling shaft at Kings Acre
(Click for a larger image)

Looking slightly like the ribcage of a modern day dinosaur, parts of the tunnelling machine can be seen at the Kings Acre site where they have been lifted out of the falling shaft this week.

The tunnelling machine (30-08-08)
The tunnelling machine at Kings Acre
(Click for a larger image)

The tunnelling machine again (30-08-08)
The tunnelling machine at Kings Acre
(Click for a larger image)

21st August 2008

Fiveways
The tunnelling machine (21-08-08)
The tunnelling machine
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine being removed (21-08-08)
The tunnelling machine being removed
[Courtesy of Nuttall's]
(Click for a larger image)

The tunnelling machine has broken through into the falling shaft.

The machine was then lifted out of the shaft and put onto a low loader lorry ready for transport away from the site.

The tunnelling machine being lifted (21-08-08)
The tunnelling machine being lifted
[Courtesy of Nuttall's]
(Click for a larger image)

The tunnelling machine being lowered (21-08-08)
The tunnelling machine being lowered
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine on the lorry (21-08-08)
The tunnelling machine on the lorry
[Courtesy of Nuttall's]
(Click for a larger image)

20th August 2008

As reported in the Ross-on-Wye Journal on Wednesday 20th August 2008 the scheme is nearing completion. The 12 meters (40 foot) deep falling shaft in the Kings Acre car park will be linked to the rising shaft in the Homs Road car park as the tunnelling machine will complete its journey.

The principle of operation is that the falling shaft is a 6 meter (20 foot) diameter vertical tunnel inside a larger shallow tunnel with a lip (or a weir) between the two. When the water reaches the top of the weir, due to the streams flooding, then the water will then pass down the new tunnel down to the Homs Road end where it will exit the tunnel using a similar principle.

Once the tunnelling machine reaches the falling shaft it will be lifted out and the top of the shaft capped off so that the car park can be reinstated.

It was also reported that this would stop the 100 year flood issue that has caused problems in the town in the past but it would not solve the Brookend Street flooding issues as these are due to problems with the drainage at the bottom end of the town. This is the responsibility of Welsh Water and they have indicated that this will be resolved sometime within the next decade.

17th August 2008

Kings Acre Car Park ramp
The old culvert (17-08-08)
The ramp between the lower and upper car park
(Click for a larger image)

Here we see that the ramp between the lower and upper King Acre car park is in the process of being rebuilt. The base of the ramp is in place and the drains are being put in place ready for the tarmac to be laid.


15th August 2008

The Bund

The area between the bund and the bypass has been flattened out and generally tidied up.

The bund (15-08-08)
The area between the bund and A40 has been flattened
(Click for a larger image)

The bund area (15-08-08)
Another view of the area
(Click for a larger image)

Kings Acre

In the Kings Acre car park area the banks of the Rudhall Brook have been reinforced with sand bags so that they do not get washed out.

The Kings Acre car park (15-08-08)
Kings Acre area
(Click for a larger image)

6th August 2008

Kings Acre

The end of Chase Brook used to join the Rudhall Brook here; where it was a feature at the back of a nearby house.

What was the end of the Chase Brook (06-08-08)
What was the end of the Chase Brook
[Courtesy of Nuttall's]
(Click for a larger image)
What was the end of the Chase Brook (06-08-08)
What was the end of the Chase Brook
[Courtesy of Nuttall's]
(Click for a larger image)

4th August 2008

Fiveways
The entrance to the weir chamber (04-08-08)
The entrance to the weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The entrance to the weir chamber has now been completed.


1st August 2008

Fiveways

Up the stream from where the sluice used to stand at Fiveways, the bed of the Rudhall Brook is paved. Presumably this was done to help control the brook as it ran past the sluice and on into the mill.

The Rudhall Brook (01-08-08)
The Rudhall Brook
[Courtesy of Nuttall's]
(Click for a larger image)

31st July 2008

Fiveways or Kings Acre
The sluice area (31-07-08)
The area where the sluice used to be
(Click for a larger image)
The old culvert (31-07-08)
The end of the old culvert
(Click for a larger image)

The stream bank (31-07-08)
The stream bank
(Click for a larger image)

The banks of the Rudhall Brook have been tidied up and the water is being allowed to flow unrestricted over the area where the sluice gate used to stand.


23rd July 2008

Fiveways

The weir has been completed and the shuttering has been removed.

The weir (23-07-08)
The weir
[Courtesy of Nuttall's]
(Click for a larger image)

21st July 2008

Fiveways
The completed outlet (21-07-08)
The completed outlet
[Courtesy of Nuttall's]
(Click for a larger image)

The outlet of the culvert at Fiveways has had the final cap of concrete added so that it is now in its final state.


Kings Acre

The bottom of the weir chamber has had the top layer of concrete added and the outer shuttering has been put in place so that the wall can be created.

The weir outer formers in place (21-07-08)
The weir outer formers in place
[Courtesy of Nuttall's]
(Click for a larger image)
The weir formers in place (21-07-08)
The weir formers in place
[Courtesy of Nuttall's]
(Click for a larger image)

This is the inlet to the culvert with the barrier in place.

The culvert inlet (21-07-08)
The culvert inlet
[Courtesy of Nuttall's]
(Click for a larger image)

Broadmeadows
The Broadmeadows Estate bridge (21-07-08)
The Broadmeadows Estate bridge
[Courtesy of Nuttall's]
(Click for a larger image)

The temporary bridge on the Broadmeadows Industrial Estate has been removed leaving only the completed permanent one.


20th July 2008

The Bund

The spoil heaps that were between the bypass and the bund have been flattened or removed and work on the throttle is now pretty much complete. Most of the other surface works are also nearing completion as can be seen at Fiveways where the clear-up operation is well underway.

The bund area (20-07-08)
The bund area
(Click for a larger image)

Fiveways

The top of the falling shaft has been removed.

The top of the falling shaft (20-07-08)
The top of the falling shaft
(Click for a larger image)

The end of the culvert (20-07-08)
The end of the culvert
(Click for a larger image)

The end of the culvert has been completed.


10th July 2008

Kings Acre

The formers/shuttering for the inside of the wall that will form the weir have been put in place. The steel reinforcing for the wall has been put in place ready for the outer shuttering to be positioned and the concrete to be poured.

The weir inner formers in place (10-07-08)
The weir inner formers in place
[Courtesy of Nuttall's]
(Click for a larger image)

9th July 2008

According to the Ross Gazette this week (No 6718 Wednesday July 9th 2008) the above ground work is well underway and the bund, which is the final part, will be completed in August 2008. The work on the 350m long 2.1m diameter tunnel will continue with final completion at around the end of the year.

The tunnelling machine delays were initially due to the need to change the teeth due to the material that was being bored through. The 50m long machine then needed changes to the way that the waste material was removed. Conveyors were fitted to enable this.

The tunnelling machine has so far covered 130m leaving another 220m until it reaches its final destination in the Kings Acre car park.

8th July 2008

The Bund
The throttle close to completion (08-07-08)
The throttle close to completion
[Courtesy of Nuttall's]
(Click for a larger image)

The throttle is now close to being completed. The banks have been landscaped and the bottom of the channel has been reinforced with stone to help prevent erosion.


4th July 2008

Kings Acre
The falling shaft (04-07-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)
The falling shaft steelwork (04-07-08)
The falling shaft steelwork
[Courtesy of Nuttall's]
(Click for a larger image)

These are the formers for the wall that will be the weir around the entrance to the tunnel that runs down to Homs Road.

The weir shuttering (04-07-08)
The weir shuttering
[Courtesy of Nuttall's]
(Click for a larger image)

The top of the inspection chamber (04-07-08)
The top of the inspection chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The inspection chamber has been cast in concrete and is being sealed prior to being covered over.


2nd July 2008

Fiveways

The outlet of the culvert at is being prepared to have the final layer of concrete formed on the top section.

The back of the outlet (02-07-08)
The back of the outlet
[Courtesy of Nuttall's]
(Click for a larger image)

Kings Acre
The culvert inlet (02-07-08)
The culvert inlet
[Courtesy of Nuttall's]
(Click for a larger image)

Further work is being carried out preparing the culvert inlet and the banks on either side have started to be landscaped.


1st July 2008

Kings Acre

In the bottom of the weir chamber the reinforcing bars are being positioned ready for the base of the chamber to be completed.

The bottom of the weir chamber (01-07-08)
The bottom of the weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

27th June 2008

Kings Acre
The weir chamber (27-06-08)
The weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The top of the falling shaft in the weir chamber has been removed.


The entrance to the weir chamber can now be clearly seen.

The entrance to the weir chamber (27-06-08)
The entrance to the weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

26th June 2008

Kings Acre
The block ready to be lifted (26-06-08)
The block ready to be lifted
[Courtesy of Nuttall's]
(Click for a larger image)
The block being lifted (26-06-08)
The block being lifted
[Courtesy of Nuttall's]
(Click for a larger image)

The top of the falling shaft partially removed (26-06-08)
The top of the falling shaft partially removed
[Courtesy of Nuttall's]
(Click for a larger image)

In order to create the weir, the top of the falling shaft has to be removed and the low wall which forms the weir shuttered and cast where the top of the shaft once stood.

The blocks were lifted off in sections using a crane.


The final blocks around where the bottom of the weir chamber sits need to be removed using a little more force where they have become fused to the concrete.

The final blocks being removed (26-06-08)
The final blocks being removed
[Courtesy of Nuttall's]
(Click for a larger image)

The walls of the inlet are complete (26-06-08)
The walls of the inlet are complete
[Courtesy of Nuttall's]
(Click for a larger image)

The walls at the culvert inlet have been completed. Now the grating to prevent access and to prevent debris from entering the channel can be built.


24th June 2008

Kings Acre

In the bottom of the weir chamber the concrete blocks under the sectional outer wall have been removed ready for the top layer of the base to be added.

Bottom of the weir chamber (24-06-08)
Bottom of the weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)
The weir chamber (24-06-08)
The weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The steel reinforcing around the inspection chamber is being added ready for the concrete to be added.

The inspection chamber (24-06-08)
The inspection chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund
The completed throttle (24-06-08)
The completed throttle
[Courtesy of Nuttall's]
(Click for a larger image)

The throttle facing has been completed and the banks have been built up around the throttle.


20th June 2008

Kings Acre

All the remaining piles around the top of the falling shaft/weir chamber have been pulled out.

The piles being removed (20-06-08)
The piles being removed
[Courtesy of Nuttall's]
(Click for a larger image)

The inspection chamber (20-06-08)
The inspection chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The inspection chamber has now been formed with an inspection shaft to allow entry into the chamber if required.


19th June 2008

Fiveways

Shuttering has been used to shape the end of the culvert and concrete has been poured to form the structure.

The end of the culvert (18-06-08)
The end of the culvert
(Click for a larger image)

Kings Acre

A crane has been at the Kings Acre site today and has been used for various uses including general tidying up.

A crane at Fiveways (18-06-08)
A crane at Fiveways
(Click for a larger image)
Items moved by the crane (18-06-08)
Items moved by the crane
(Click for a larger image)

The weir chamber outer wall (19-06-08)
The weir chamber outer wall
[Courtesy of Nuttall's]
(Click for a larger image)

The outer wall of the weir chamber has been built and the piles have been removed.


The Bund

The throttle walls have been in filled with clay so that it forms a good barrier if the bund becomes filled with water.

The throttle (19-06-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

18th June 2008

Kings Acre
The concrete behind the outer weir chamber (18-06-08)
The concrete behind the outer weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The area outside of the sectional wall has been filled with concrete.


The inspection chamber has now been formed.

The junction chamber (18-06-08)
The junction chamber
[Courtesy of Nuttall's]
(Click for a larger image)

17th June 2008

Kings Acre
The outer wall of the weir chamber (17-06-08)
The outer wall of the weir chamber
[Courtesy of Nuttall's]
(Click for a larger image)

This is the outer wall of the weir chamber. The area outside of this will be filled with concrete. Each of the sections that make up the wall has pins out of the rear to tie them into the supporting concrete.


This is an inspection chamber being added to potentially accommodate future changes. To the left can be seen the point where a pipe can be added if it is required.

Junction chamber (17-06-08)
Junction chamber
[Courtesy of Nuttall's]
(Click for a larger image)

12th June 2008

Kings Acre
The outer wall (12-06-08)
The outer wall
[Courtesy of Nuttall's]
(Click for a larger image)

The outer wall is formed of precast sections as seen here. These are lowered into the pit using a crane (below right). The sections are locked together using keys as seen in the below left photo.


The weir outer wall (12-06-08)
The weir's outer wall
[Courtesy of Nuttall's]
(Click for a larger image)
The outer wall of the weir (12-06-08)
The outer wall of the weir
[Courtesy of Nuttall's]
(Click for a larger image)

11th June 2008

Kings Acre

The red bricks are going to be used to provide support for the weir's outer wall.

The weir outer wall (11-06-08)
The weir's outer wall
[Courtesy of Nuttall's]
(Click for a larger image)
The base of the weir outer wall (11-06-08)
The base of the weir's outer wall
[Courtesy of Nuttall's]
(Click for a larger image)

10th June 2008

Kings Acre

The concrete blocks, on the right, have been laid around what will be the outer edge of the weir chamber. On top of these the outer wall will be built and then back filled with concrete to form the chamber. The blocks will then be removed so that the slab that forms the base of the chamber will go under the outer wall.

The base of the weir (10-06-08)
The base of the weir
[Courtesy of Nuttall's]
(Click for a larger image)

9th June 2008

Fiveways
The end of the culvert (09-06-08)
The end of the culvert
[Courtesy of Nuttall's]
(Click for a larger image)

The culvert exit at Fiveways is now being faced to form the final exit point.


5th June 2008

Kings Acre

The base for what will be the weir has been laid. To the right is the falling shaft and to the left can be seen the edge of the exit from the bifurcation chamber.

The base of the weir (05-06-08)
The base of the weir
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund

These shots show the throttle with the facing partially added to the one side and being fitted to the other. This facing is made out of artificial stone.

The throttle with its decorative facing (05-06-08)
The throttle with its decorative facing
[Courtesy of Nuttall's]
(Click for a larger image)
The decorative facing being added (05-06-08)
The decorative facing being added
[Courtesy of Nuttall's]
(Click for a larger image)

4th June 2008

Kings Acre
The exit from the bifurcation chamber (04-06-08)
The exit from the bifurcation chamber
[Courtesy of Nuttall's]
(Click for a larger image)

This is the place where the water in the bifurcation chamber will flow out around the weir. The water will then go down into the falling shaft and tunnel in the event that the water becomes deep enough.


This is the place where the water in the bifurcation chamber will flow out around the weir. The water will then go down into the falling shaft and tunnel in the event that the water becomes deep enough.

The bifurcation chamber (04-06-08)
The bifurcation chamber
[Courtesy of Nuttall's]
(Click for a larger image)

Kings Acre
The throttle (04-06-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

The inside of the walls of the throttle have now been coated with a black waterproof coating to help protect them.


2nd June 2008

Kings Acre

The area around the falling shaft has now been excavated.

Further excavations around the falling shaft (02-06-08)
Further excavations around the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

23nd May 2008

Kings Acre
Excavations around the falling shaft (23-05-08)
Excavations around the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Excavations have started around the top falling shaft.


The new pipe for the Chase Brook has been partially covered over. In the foreground can be seen the top of the inspection chamber.

The Chase Brook (23-05-08)
The Chase Brook
[Courtesy of Nuttall's]
(Click for a larger image)

Spillway
The spillway (23-05-08)
The spillway works
[Courtesy of Nuttall's]
(Click for a larger image)

Further excavations have been carried out at the spillway. In order to finish this, all that is needed is a layer of grass, to hold the soil together, and the lowering of the bank of the stream to the required level to allow the water to flow out if it gets too deep.


22nd May 2008

Fiveways
The falling shaft (22-05-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Piles have been driven in all around the top of the falling shaft. This will allow the area inside to be excavated so that the weir can be created.


The Bund

The sides of the throttle have been completed.

The throttle (22-05-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

20th May 2008

Kings Acre
The new culvert inlet (20-05-08)
The new culvert inlet
[Courtesy of Nuttall's]
(Click for a larger image)

This is the entrance to the new culvert. The base has been laid and the work to build the sides is soon to start.


The new pipe to channel the Chase Brook has been laid.

The Chase Brook pipe (20-05-08)
The Chase Brook pipe
[Courtesy of Nuttall's]
(Click for a larger image)
The new line of the Chase Brook (20-05-08)
The new line of the Chase Brook
[Courtesy of Nuttall's]
(Click for a larger image)

17th May 2008

Homs Road
The view from the Rope Walk (17-05-08)
The acoustic barrier (Click for a larger image)

The tunnelling works have been stepped up to run 24-hours a day for the next eight weeks to make up for time lost due to problems with the tunnelling machine. Contractor Morgan Est started the 24-hour working this week to hopefully make up the time so the scheme can be completed in September as was planned. The 24-hour working will be confined to weeknights with the work halted on Saturday and Sunday nights.

The delays have been due to the "teeth" on the 50m long tunnelling machine as they have not been able to cope with the variety of rock types encountered underground. Each set of teeth are designed for a specific rock type and are much less efficient when used on other types. The initial surveys done predicted much greater consistency in the bedrock.

Homs Road site (17-05-08)
Homs Road site
(Click for a larger image)

As reported in the Ross-on-Wye Journal2, Herefordshire Council's project manager Martin Jackson said:


"We have looked at alternatives to 24-hour working but have found this will be the best method of making up the lost time and ensuring the works are completed as near to the contract date at the end of September."

He said the main problem had been that the ground had been "different" to what was expected so the teeth chosen for the tunnelling equipment had not been breaking down the rocks efficiently.


"We made an assessment about which teeth to use, but the rocks are different - they are more mixed. We were perhaps expecting it to be more consistent than it is - the right configuration is needed."

Limits on noise for night-time working were written into Morgan Est's contract in case this situation arose. Noise levels are going to be monitored by Herefordshire Council to ensure that compliance with the limits is maintained. In order to reduce noise, various other measures have been put in place such as toning down alarms on the crane as far as safety will permit and keeping surface vehicle movements to a minimum. An acoustic fence has also been erected alongside the brook (as seen in the photo above) to further lessen any noise. Mr Jackson said:


"The cranes have audible warnings, similar to the reversing noises of large lorries. We have changed these so they are less piercing and the acoustic fence will also provide a noise barrier."


Fiveways

The sluice area is now being worked on with the end of the culvert being completed. An access scaffold has been added so that access to the bottom of the culvert can be reached.

The end of the culvert at Fiveways (17-05-08)
The end of the culvert at Fiveways
(Click for a larger image)

The photo below was a night shot taken showing the end of the culvert prior to it becoming flooded.

The culvert (14-05-08)
The culvert
(Click for a larger image)

16th May 2008

Kings Acre

Because the weir into the falling shaft is to be below ground level, the top of the shaft needs to be removed.

In order to do this the sides of the shaft need to be excavated so that the top can be removed.

The falling shaft (16-05-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)
The falling shaft (16-05-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

The Chase Brook (16-05-08)
The Chase Brook
[Courtesy of Nuttall's]
(Click for a larger image)

The brook that runs across the bottom of the Chase grounds used to join the Rudhall Brook at Kings Acre. As a result of the works it has been diverted so that it now joins into the culvert. Because this brook also ran down a small culvert that was in very poor condition, this has been excavated so that a new pipe can be laid.


Broadmeadows

In this shot, the Broadmeadows both the temporary (foreground) and new bridges (behind) over the brook can be seen. The temporary bridge is due to be removed.

The Broadmeadows Industrial Estate bridge (16-05-08)
The Broadmeadows Industrial Estate bridge
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund
Lorries arriving at the bund (16-05-08)
Lorries arriving at the bund
[Courtesy of Nuttall's]
(Click for a larger image)

A stream of lorries have been arriving at the bund to deliver and remove various materials to and from this area as the works continue.


The main walls of the throttle have been cast. The only areas that remain to be done are the areas over the opening.

The throttle (16-05-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

The throttle side (16-05-08)
The throttle side
[Courtesy of Nuttall's]
(Click for a larger image)
The throttle front (16-05-08)
The throttle front
[Courtesy of Nuttall's]
(Click for a larger image)

13th May 2008

Fiveways
The new culvert (13-05-08)
The new culvert
[Courtesy of Nuttall's]
(Click for a larger image)

The area has been further cleared ready for continuing works.


Shuttering has been placed and concrete poured to form the base.

The new base for the end of the culvert (13-05-08)
The new base for the end of the culvert
[Courtesy of Nuttall's]
(Click for a larger image)

12th May 2008

Fiveways
The diverted stream (12-05-08)
The diverted stream
[Courtesy of Nuttall's]
(Click for a larger image)

Because work is being carried out in the sluice area, at the exit point of the new culvert, the stream has been diverted to keep it well away from the work area.


The sides around the end of the culvert need to be dug out so that the final concrete end can be created.

The sluice area (12-05-08)
The sluice area
[Courtesy of Nuttall's]
(Click for a larger image)
The end of the culvert (12-05-08)
The end of the culvert
[Courtesy of Nuttall's]
(Click for a larger image)

The gravel and dirt that has fallen down the sides has been removed ready for further works to be carried out.

The cleared end of the culvert (12-05-08)
The cleared end of the culvert
[Courtesy of Nuttall's]
(Click for a larger image)

Kings Acre
The old culvert grate (12-05-08)
The old culvert grate
[Courtesy of Nuttall's]
(Click for a larger image)

The grate off the old culvert has been put to the side awaiting removal.


Homs Road

This is the acoustic wall (or acoustic barrier) as seen from the Rope Walk and from within the Homs Road site.

The Homs Road wall (12-05-08)
The Homs Road wall
[Courtesy of Nuttall's]
(Click for a larger image)
The accoustic wall (12-05-08)
The acoustic wall
[Courtesy of Nuttall's]
(Click for a larger image)

11th May 2008

Fiveways
Fiveways site (11-05-08)
The Fiveways site
(Click for a larger image)

The sluice area (11-05-08)
The sluice area
(Click for a larger image)

The Kings Acre car park site at Fiveways has been cleared. The large crane has gone and the spoil clamp etc has been removed.

A large pipe has been placed in the Rudhall Brook to guide the water past the old slice area.

Fiveways/Kings Acre car park area (11-05-08)
Fiveways/Kings Acre car park area
(Click for a larger image)

Broadmeadows
The Broadmeadows Bridge (11-05-08)
The Broadmeadows Bridge
(Click for a larger image)

The Broadmeadows bridge is now complete and is regularly in use now that the caravan park is open for the summer.


The Bund
The Bund Throttle (11-05-08)
The Throttle in the Bund

The Throttle (11-05-08)
The Throttle
(Click for a larger image)

The throttle is well under way with its construction.


9th May 2008

Kings Acre

The old culvert has now been replaced with a concrete slab base and the end of the new culvert.

The old culvert has been replaced (09-05-08)
The old culvert has been replaced
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund
The throttle wall (09-05-08)
The throttle wall
[Courtesy of Nuttall's]
(Click for a larger image)

This is a view of the left-hand front wall. The rear wall is being prepared so that the shuttering can be put up around it.


2nd May 2008

Kings Acre

Being as this crane is not currently needed, it is being removed. The crane has had its jib removed so that it can be more easily transported.

Crane leaving site (02-05-08)
Crane leaving site
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund
The throttle (02-05-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

The shuttering is now being manoeuvred around so that it can be used to form another one of the walls.


1st May 2008

The Bund

One wall has been cast and the shuttering has been removed. The stepped face has been done as the banks will be built up to the level of the stepping and then the wall will be faced with stone or a similar material.

One wall has been cast (01-05-08)
One wall has been cast
[Courtesy of Nuttall's]
(Click for a larger image)

30th April 2008

The Bund

The works at the throttle are rapidly progressing.

The left-hand side of the throttle (30-04-08)
The left-hand side of the throttle
[Courtesy of Nuttall's]
(Click for a larger image)
The right-hand side of the throttle (30-04-08)
The right-hand side of the throttle
[Courtesy of Nuttall's]
(Click for a larger image)

29th April 2008

Homs Road
Looking down into the rising shaft (29-04-08)
Looking down into the rising shaft
[Courtesy of Nuttall's]
(Click for a larger image)

This is the view down the rising shaft at Homs Road. The track that the train runs on, with engine is in the back shunt, can be clearly seen along with the tunnel ventilation system that runs down the shaft in the top left of the shot. The bottom left are the services, such as power and water, to the tunnelling machine. To the top right are water pumps and pipes coming up the shaft to allow any water that seeps into the shaft to be pumped out. At the top is the access tower that allows the engineers to climb down into the shaft.


In this area can be seen the trucks used to remove the spoil from the tunnelling. To the left can just be seen the sections that are used to form the tunnel walls.

The Homs Road area (29-04-08)
The Homs Road area
[Courtesy of Nuttall's]
(Click for a larger image)

28th April 2008

Kings Acre
The end of the old culvert (28-04-08)
The end of the old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

This is the remaining part of the old culvert that ran from Broadmeadows to Fiveways as seen from the Broadmeadows end. The grate that prevented access to the old culvert can be seen in the middle of the shot. It is clear that very little remains of the culvert and this will soon be replaced.

The digger is backfilling over the top of the new culvert as it makes its way from Kings Acre towards Broadmeadows.


At the throttle, the preparation and construction of the shuttering is continuing.

The throttle (28-04-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)

25th April 2008

Kings Acre
The completed bottom of the falling shaft (25-04-08)
The completed bottom of the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

The slab has been poured and the base of the falling shaft has been completed.

The hole in the base, top right, is there so that there is a low point in the bottom of the shaft so that water will collect there so that it can be pumped out.

In order to prevent foul water building up in the tunnel any water that seeps into the tunnel or the falling and rising shafts will be pumped out. It has to be remembered that this tunnel will only be used very occasionally; during extreme flooding situations.


The Bund

The work at the throttle has continued and more reinforcing has been positioned along with more shuttering in preparation for the concrete to be poured.

The works at the throttle (25-04-08)
The works at the throttle
[Courtesy of Nuttall's]
(Click for a larger image)
The shuttering at the throttle (25-04-08)
The shuttering
[Courtesy of Nuttall's]
(Click for a larger image)

24th April 2008

Fiveways

This crane, supplied by Ainscough, has been used to move various items around the site.

An Ainscough crane (24-04-08)
An Ainscough crane
(Click for a larger image)
Ainscough crane (24-04-08)
Ainscough lorry
(Click for a larger image)

This Ainscough lorry has come to collect ballast weights that were used with the crane on the Fiveways site.

An Ainscough lorry (24-04-08)
An Ainscough lorry
(Click for a larger image)
The Ainscough lorry (24-04-08)
The Ainscough lorry
(Click for a larger image)

Broadmeadows
The Broadmeadows bridge west parapet (24-04-08)
The Broadmeadows bridge west parapet
(Click for a larger image)

The Broadmeadows bridge parapets are now complete as can be seen in this pair of photos.

The Broadmeadows bridge east parapet (24-04-08)
The Broadmeadows bridge east parapet
(Click for a larger image)

23rd April 2008

Broadmeadows

The channel between the Broadmeadows Bridge at the caravan park and the Broadmeadows Industrial Estate Bridge has been completed.

The Broadmeadows channel (23-04-08)
The Broadmeadows channel
[Courtesy of Nuttall's]
(Click for a larger image)

The work at the throttle is continuing with the various parts of the shuttering being positioned.

The Broadmeadows channel (23-04-08)
The throttle
[Courtesy of Nuttall's]
(Click for a larger image)
The throttle walls (23-04-08)
The throttle walls
[Courtesy of Nuttall's]
(Click for a larger image)

22nd April 2008

Kings Acre
The bottom of the falling shaft (22-04-08)
The bottom of the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

The reinforcing steelwork has been positioned in the bottom of the falling shaft and the concrete slab will be poured in thus forming the base.


The Bund

Shuttering is being erected so that the walls of the throttle can be poured.

Shuttering being positioned to form the walls of the throttle (22-04-08)
Shuttering being positioned to form the walls of the throttle
[Courtesy of Nuttall's]
(Click for a larger image)

21st April 2008

Kings Acre
Work continues in the falling shaft (21-04-08)
Preparation work continues in the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

The bottom of the falling shaft is having reinforcing steel put in place. This is ready for the concrete slab, that will form its base, to be poured.


The Bund

Work on building the Throttle, which is the cut out in the bund that controls the rate of outflow of water, has continued and the foundations for the side walls are being laid.

The Throttle

The Throttle is built in a similar way to a dam. It comprises of a tunnel of a size that will not allow more water out from behind the bund than the channel through Ross can handle. It then has concrete side walls, that limit the erosion of the bank due to the flowing water, front and back which are then separated by a layer of clay which acts as a water barrier.

Work continues at the throttle (21-04-08)
Work continues at the Throttle
[Courtesy of Nuttall's]
(Click for a larger image)
Throttle construction (21-04-08)
Throttle construction
[Courtesy of Nuttall's]
(Click for a larger image)

16th April 2008

Kings Acre

Since it was sunk, the falling shaft has been pumped out to ensure it does not get flooded.

Additionally the point where the tunnel from the rising shaft in Homs Road has been prepared.

The inside of the falling shaft (16-04-08)
The inside of the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

The inspection hatch for the bifurcation chamber (16-04-08)
The inspection hatch for the bifurcation chamber
[Courtesy of Nuttall's]
(Click for a larger image)

The bifurcation chamber has been covered over and the only remaining visible part is the top of the inspection hatch.


10th April 2008

Broadmeadows Industrial Estate

This is the new bridge on the Broadmeadows Industrial Estate. The temporary bridge that has been used during the works is to the right.

The new Industrial Estate bridge (10-04-08)
The new Industrial Estate bridge
[Courtesy of Nuttall's]
(Click for a larger image)

9th April 2008

Fiveways
The final part of the old culvert (09-04-08)
The final part of the old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

The final section/the end of the old culvert is about to be finally removed. Light can be seen through the remaining part thus showing exactly how little remains.


31nd March 2008

Fiveways

This is the remaining section of the old culvert from Broadmeadows to Fiveways. A small amount of water from the brook can be seen flowing out of the culvert and into the area to be occupied by the new culvert.

Water flowing out of the old culvert (31-03-08)
Water flowing out of the old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

22nd March 2008

Broadmeadows
Broadmeadows bridge wall (22-03-08)
Broadmeadows bridge wall
(Click for a larger image)

As must have been the target, the bridge at Broadmeadows was completed far enough to allow the caravan park to open for the Easter weekend. The caravan park was busy with a large mix of touring motor homes and caravans.

Above is one of the new brick built walls of the bridge. Below left is one of the large pumps that have been used to drain the water out from this area the site whilst the construction continues in the bottom water channel. Below right is the upstream side of the new bridge over the Chatterley Brook1.

One of the massive pumps (22-03-08)
One of the massive pumps
(Click for a larger image)
The new Broadmeadows bridge (22-03-08)
The new Broadmeadows bridge
(Click for a larger image)

18th March 2008

Fiveways

The result of the culvert works can be seen here. The point where the Chase Brook and the Chatterley Brook1 meet can be seen in the bottom centre of the photo. The formers and steel reinforcing is being placed in preparation for the concrete to be poured.

The culvert (18-03-08)
The culvert
[Courtesy of Nuttall's]
(Click for a larger image)

17th March 2008

The Bund
Lorry (17-03-08)
A large lorry
[Courtesy of Nuttall's]
(Click for a larger image)
Bulldozer (17-03-08)
Bulldozer
[Courtesy of Nuttall's]
(Click for a larger image)

Excavator (19-02-08)
Excavator
[Courtesy of Nuttall's]
(Click for a larger image)

Various items of large earth moving equipment have been delivered to the bund area so that the bank for the main bund can be built.


14th March 2008

Broadmeadows

The Broadmeadows bridge has had fencing added around it so that it is ready for use prior to the Easter holiday period.

The Broadmeadows bridge (14-03-08)
The Broadmeadows bridge
[Courtesy of Nuttall's]
(Click for a larger image)

11th March 2008

Broadmeadows

The tarmac surface has been laid onto the top of the Broadmeadows bridge.

The Broadmeadows bridge surfacing starts (11-03-08)
The Broadmeadows bridge surfacing starts
[Courtesy of Nuttall's]
(Click for a larger image)
The Broadmeadows bridge surfacing complete (11-03-08)
The Broadmeadows bridge surfacing complete
[Courtesy of Nuttall's]
(Click for a larger image)

Fiveways
Work on the culvert at Fiveways (11-03-08)
Work on the culvert at Fiveways
[Courtesy of Nuttall's]
(Click for a larger image)


Massive crane (11-03-08)
Massive crane
[Courtesy of Nuttall's]
(Click for a larger image)

Work continues on the culvert and a massive crane was used to rapidly lift and manoeuvre the sections of the culvert into position.

This meant that the sections that would normally take several days to move and position were completed in one day even though the weather was deteriorating throughout the day. Due to the size of the crane, and the relatively light tunnel sections that were being lifted, it was not affected by the wind.

The massive crane (11-03-08)
The massive crane
[Courtesy of Nuttall's]
(Click for a larger image)

10th March 2008

The Bund

Here at the Bund, what will be the final throttle is being built. It is much smaller than the tunnel sections used further downstream so that, in theory, they will have the capacity to handle the flow coming out from here.

The start of the throttle (10-03-08)
The start of the throttle
[Courtesy of Nuttall's]
(Click for a larger image)
The first part of the throttle (10-03-08)
The first part of the throttle
[Courtesy of Nuttall's]
(Click for a larger image)

Broadmeadows
The Broadmeadows Bridge parapet (10-03-08)
The Broadmeadows Bridge parapet
[Courtesy of Nuttall's]
(Click for a larger image)

Preparations are being made to face the parapet with brickwork so that its appearance is improved.


Fiveways

This the remaining section of the original Broadmeadows to Fiveways culvert seen from the Broadmeadows end.

The Broadmeadows end of the old culvert (10-03-08)
The Broadmeadows end of the old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

7th March 2008

Fiveways

The old culvert has been nearly completely removed. The work continues on the point where the two streams will meet.

The remains of the old culvert (07-03-08)
The remains of the old culvert
[Courtesy of Nuttall's]
(Click for a larger image)
The intersection and old culvert (07-03-08)
The intersection and old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

6th March 2008

Broadmeadows
The Broadmeadows Bridge (06-03-08)
The Broadmeadows Bridge
[Courtesy of Nuttall's]
(Click for a larger image)

This is the point where the brook that runs across the bottom of the Chase Hotel grounds will join with the culvert. Here a junction box is being specially created to accommodate this at the end of the sectional tunnel.


5th March 2008

Fiveways

This is the point where the brook that runs across the bottom of the Chase Hotel grounds will join with the culvert. Here a junction box is being specially created to accommodate this at the end of the sectional tunnel.

The intersection (05-03-08)
The intersection
[Courtesy of Nuttall's]
(Click for a larger image)

1st March 2008

Fiveways
The culvert (01-03-08)
The culvert
[Courtesy of Nuttall's]
(Click for a larger image)

This is the view looking from the Broadmeadows end of the culvert towards the falling shaft at Fiveways.


29th February 2008

Fiveways

Today the work on the culvert between the Kings Acre car park and Broad Meadows industrial estate continues. In the series of photos below, the preparation to lift, the lift and lowering of the section of culvert can be seen.

Fiveways crane lift preparations (29-02-08)
Preparations for the lift
(Click for a larger image)
Fiveways crane rise stage (29-02-08)
The start of the lift
(Click for a larger image)

Fiveways crane rise complete (29-02-08)
The rise is complete
(Click for a larger image)
Fiveways crane rotation (29-02-08)
The rotation stage of the lift
(Click for a larger image)

Fiveways crane lowering (29-02-08)
The lowering stage of the lift
(Click for a larger image)
The culvert works (29-02-08)
The culvert works
[Courtesy of Nuttall's]
(Click for a larger image)

Homs Road
Parts for the tunnelling equipment (29-02-08)
Parts for the tunnelling equipment
[Courtesy of Nuttall's]
(Click for a larger image)

In the shot to the left more parts of the tunnel boring machine can be seen and below are a couple of photos of the engine that will be used to pull the spoil trucks out of the tunnel to the rising shaft so that the material can be lifted to the surface.


The engine (29-02-08)
The engine
[Courtesy of Nuttall's]
(Click for a larger image)
The engine from another angle (29-02-08)
The engine from another angle
[Courtesy of Nuttall's]
(Click for a larger image)

28th February 2008

Fiveways

The trench has now been excavated ready for the tunnel sections to be put into place. The mouth of the new culvert is clearly visible.

The culvert works (28-02-08)
The culvert works
[Courtesy of Nuttall's]
(Click for a larger image)

27th February 2008

Fiveways

The Fiveways to Broadmeadows culvert work continues and the old culvert is clearly visible at the end of trench.

The culvert works (27-02-08)
The culvert works
[Courtesy of Nuttall's]
(Click for a larger image)
The old culvert (27-02-08)
The old culvert
[Courtesy of Nuttall's]
(Click for a larger image)

Broadmeadows

The downstream bridge parapet on the bridge over the Chatterley Brook1 at Broadmeadows has been uncovered. The concrete will be faced with brick for aesthetic purposes.

The upstream parapet has been prepared with shuttering so that the concrete can be poured into the space to form part of the parapet.

The downstream bridge parapet (27-02-08)
The downstream bridge parapet
[Courtesy of Nuttall's]
(Click for a larger image)
The upstream bridge parapet (27-02-08)
The upstream bridge parapet
[Courtesy of Nuttall's]
(Click for a larger image)

26th February 2008

Fiveways
The culvert works (26-02-08)
The culvert works
[Courtesy of Nuttall's]
(Click for a larger image)

The digging out of the material along the line of the culvert continues at a rapid rate. The old culvert can be just seen in the middle of the shot.


25th February 2008

Broadmeadows

In the below-left shot the steel reinforcing bars can be seen that will be placed on the top of the tunnel sections to tie the two sides together. It has to be remembered that the parapets and side sections of the bridge will be subjected to high stresses due to the force of the water potentially flowing down through this area during flooding.

The below-right shot shows concrete being poured to form another part of the bridge parapet.

The top of the Broadmeadows bridge (25-02-08)
The top of the Broadmeadows bridge
[Courtesy of Nuttall's]
(Click for a larger image)
Pouring a parapet (25-02-08)
Pouring a parapet
[Courtesy of Nuttall's]
(Click for a larger image)

Fiveways

The work on the culvert continues and additional piles have been put in to allow the trench to be extended. Towards the bottom-left of the shot can be seen a piece of masonry, this is the remains of a manhole that was in the path of the works that needed to be removed.

The culvert (25-02-08)
The culvert
[Courtesy of Nuttall's]
(Click for a larger image)

24th February 2008

Broadmeadows
Broadmeadows (24-02-08)
Broadmeadows bridge area
(Click for a larger image)

Broadmeadows bridge (24-02-08)
Broadmeadows
(Click for a larger image)

The area that is the entrance to the Broadmeadows Caravan Park is under heavy construction. The pipes are pumping water around the site to Fiveways so that the works can continue without the area filling up with water.


22st February 2008

The Bund

The pipes at the bund have been positioned in the streams to enable a temporary throttle and various bridges to be created.

Pipes in the stream (22-02-08)
Pipes in the stream
[Courtesy of Nuttall's]
(Click for a larger image)
A temporary bridge (22-02-08)
A temporary bridge
[Courtesy of Nuttall's]
(Click for a larger image)

21st February 2008

Broadmeadows

These photos show that the work is continuing on the Broadmeadows Caravan park bridge. Shuttering is in place so that the bridge parapets can be added.

The photo below-left shows the concrete being poured into the former to make one of the parapets.

Broadmeadows caravan park bridge (21-02-08)
Broadmeadows caravan park bridge
[Courtesy of Nuttall's]
(Click for a larger image)
Broadmeadows caravan park bridge parapet (21-02-08)
Broadmeadows caravan park bridge parapet
[Courtesy of Nuttall's]
(Click for a larger image)

19th February 2008

Fiveways
Fiveways to Broadmeadows culvert (19-02-08)
Fiveways to Broadmeadows culvert
[Courtesy of Nuttall's]
(Click for a larger image)

On the Fiveways to Broadmeadows culvert more sections have been added. The concrete is being poured to hold them in place whilst sand bags are used to retain the concrete where it is required.


The removal of the material from the bottom of the falling shaft continues and, as can be seen in the photo, the falling shaft is now around 6m deep.

Work continues on the falling shaft (19-02-08)
Work continues on the falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)
The falling shaft (19-02-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

15th February 2008

Fiveways

Here at the Fiveways site we see the complement of the rising shaft down Homs Road.

This is the top of the falling shaft where the water will drop down into the new tunnel.

Falling Shaft (15-02-08)
Falling Shaft at Fiveways
(Click for a larger image)

14th February 2008

Fiveways

Here we see that works are continuing on the falling shaft. The small digger is being used to remove material from the bottom and sides of the shaft. In the below-left shot, the man access has now been changed from a ladder to a access tower system.

In the below right shot, one of the sections of the side of the shaft is being put in place. The straw is used as a packing material to help seal the joints.

The falling shaft (14-02-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)
Shaft sections being positioned (14-02-08)
Shaft sections being positioned
[Courtesy of Nuttall's]
(Click for a larger image)

13th February 2008

The work on the falling shaft continues and it is now several metres deep, each ring is 1000mm (1m) high.

The falling shaft (13-02-08)
The falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Fiveways to Broadmeadows culvert (13-02-08)
Fiveways to Broadmeadows culvert
[Courtesy of Nuttall's]
(Click for a larger image)

More sections of the new culvert have been put into place.


11th February 2008

The material inside the piles is being removed, the old culvert can be clearly seen in the centre of the photo.

Fiveways to Broadmeadows culvert (11-02-08)
Fiveways to Broadmeadows culvert
[Courtesy of Nuttall's]
(Click for a larger image)

7th February 2008

Homs Road

More parts of the tunnelling equipment have arrived. Below can be seen some of the Archemedes screws used to move the material bored from the face of the tunnel back towards the trucks that will follow the TE and remove the spoil.

Parts of the tunnelling equipment (07-02-08)
Parts of the tunnelling equipment
[Courtesy of Nuttall's]
(Click for a larger image)
More parts of the tunnelling equipment (07-02-08)
More parts of the tunnelling equipment
[Courtesy of Nuttall's]
(Click for a larger image)

6th February 2008

Fiveways

Today the top ring of the falling shaft was put in place at Kings Acre. This was then fixed into place using concrete and this will stop it dropping as the material inside it is removed as the shaft is extended downwards.

First ring of falling shaft (06-02-08)
First ring of falling shaft
[Courtesy of Nuttall's]
(Click for a larger image)
First ring fixed in place (06-02-08)
First ring fixed in place
[Courtesy of Nuttall's]
(Click for a larger image)

Homs Road
The tunnelling machine being prepared (06-02-08)
The tunnelling machine being prepared
[Courtesy of Nuttall's]
(Click for a larger image)

At the Homs Road site more parts of the tunnelling equipment are arriving and the machine underground is being prepared with its various umbilical cables being arranged and connected up.


5th February 2008

Fiveways

The work on the falling shaft at Fiveways/Kings Acre has started. The material that has been dug out, by the excavator that can be seen in the background, is being put into the clamp ready to be moved out to the bund.

Spoil storage clamp in use (05-02-08)
Spoil storage clamp in use
[Courtesy of Nuttall's]
(Click for a larger image)

4th February 2008

Fiveways
Spoil storage clamp (04-02-08)
Spoil storage clamp
[Courtesy of Nuttall's]
(Click for a larger image)

This spoil storage clamp has been built to temporarily store the material that is dug out of the falling shaft as it is dug out. The spoil will then be moved out of the clamp, via lorry, to the bund where it will be stored for use later our used to build the bund itself.


Here the piles and supporting framework, to stop the piles collapsing in when the material between them is removed, can be seen. This will allow the culvert between Fiveways and Broadmeadows to be more rapidly put in place.

The Fiveways to Broadmeadows culvert (04-02-08)
The Fiveways to Broadmeadows culvert
[Courtesy of Nuttall's]
(Click for a larger image)

The Bund
Temporary pipe work at the bund (04-02-08)
Temporary pipe work at the bund
[Courtesy of Nuttall's]
(Click for a larger image)

Some pipe sections have been delivered to the bund area so that a temporary throttle can be created. They are also to used to create bridges over watercourses that run across the bund area to allow machinery and equipment to be more easily moved around the area.


2nd February 2008

Fiveways

Here the top of the bifurcation chamber is being completed by hand after the concrete had been poured to form "the lid" of the chamber.

The top of the bifurcation chamber (01-02-08)
The top of the bifurcation chamber
[Courtesy of Nuttall's]
(Click for a larger image)

31st January 2008

tunnelling Machine

On the 31st January 2008 the 53 Tonne Tunnel Boring Machine was lowered into the rising shaft in the Homs Road Car Park. As the 400m tunnel is dug out, more sections will be added to the machine. As the tunnelling progresses at 10m to 12m per day, thus be hopefully completed by the end of May. The tunnel will follow the line of the brook, thus it will have three corners in it.

The earth and rock being removed will extracted using a belt inside the machine and hauled out to the bund area by lorry. It is hoped that the Flood Alleviation work will be completed by July 2008.


The tunnelling machine being prepared (31-01-08)
The tunnelling machine being prepared
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine over the shaft (31-01-08)
The tunnelling machine over the shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Here we see the tunnelling machine or tunnelling equipment (TE) being prepared in the back of the lorry ready for the lift to get it into the rising shaft. Then there is a series of three photos showing the TE being lowered into the shaft.

The tunnelling machine being lowered (31-01-08)
The tunnelling machine being lowered
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine in the shaft (31-01-08)
The tunnelling machine in the shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Below are a couple of shows showing the TE in the bottom of the shaft and then being manoeuvred into the prepared end of the tunnel ready to start boring.

The tunnelling machine being lowered (31-01-08)
The tunnelling machine being lowered
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine in the shaft (31-01-08)
The tunnelling machine in the shaft
[Courtesy of Nuttall's]
(Click for a larger image)

30th January 2008

tunnelling Machine
The tunnelling machine (30-01-08)
The tunnelling machine
[Courtesy of Nuttall's]
(Click for a larger image)
The tunnelling machine on the lorry (30-01-08)
The tunnelling machine on the lorry
[Courtesy of Nuttall's]
(Click for a larger image)

Today the front part of the tunnelling machine arrived on the back of a low-loader lorry. The scale can be seen when compared to the person stood next to it showing that it has around a 6' diameter.

Traditionally, like ships, tunnelling machines are given names and this one has been named Victoria.

This machine is designed to cut through the bed rock and should be able to cover 10-20 meters a day. The spoil is carried back by an Archemedes screw mechanism where it is then loaded into trucks that follow the machine.

The rear of the front stage of the tunnelling machine (30-01-08)
The rear of the front stage of the tunnelling machine
[Courtesy of Nuttall's]
(Click for a larger image)

29th January 2008

Fiveways
Bifurcation chamber (29-01-08)
Bifurcation chamber
[Courtesy of Nuttall's]
(Click for a larger image)

Here the shuttering/former has been put in place so that the top of the chamber can be added so that the concrete can be poured on top of this. To the middle left can be seen the shuttering which will form the man access so that the chamber can be inspected.


Homs Road

In the bottom of the rising shaft the rails are being put in place that will initially carry the tunnelling machine into place and subsequently the engine and trucks to remove the spoil from the tunnelling operation.

Track being put in place (29-01-08)
Track being put in place
[Courtesy of Nuttall's]
(Click for a larger image)

22nd January 2008

Broadmeadows

Here the Broadmeadows Bridge works can be seen as continuing and the frame has been assembled to allow piles to be driven down around the area so that the middle can be dug out without fear of the sides collapsing in.

The photo, below right, shows one of the piles, each of which are around 5m long, being pushed into the ground.

Broadmeadows bridge (22-01-08)
Broadmeadows Bridge
[Courtesy of Nuttall's]
(Click for a larger image)
Broadmeadows piles (22-01-08)
Broadmeadows piles
[Courtesy of Nuttall's]
(Click for a larger image)

21st January 2008

Fiveways
Bifurcation chamber after flooding (21-01-08)
Bifurcation chamber after flooding
[Courtesy of Nuttall's]
(Click for a larger image)

The bifurcation chamber has now been drained or the flood water has receded and the resulting mess caused by the flooding can be clearly seen.


Here the water can be seen pouring over the site where the sluice used to be.

The high water at the sluice (21-01-08)
The high water at the sluice
[Courtesy of Nuttall's]
(Click for a larger image)

20th January 2008

These photos show the pumps in the Chatterley Brook1 just upstream from the bridge at Broadmeadows that leads to the caravan park.

These are pumping water down to the point where the pipe ends at Fiveways just prior to where the mill race was located.

Pumps in the Chatterley Brook (20-01-08)
Pumps in the Chatterley Brook
[Courtesy of Nuttall's]
(Click for a larger image)
Water at being pumped to Fiveways (20-01-08)
Water at being pumped to Fiveways
[Courtesy of Nuttall's]
(Click for a larger image)

19th January 2008

The Spillway
The spillway (19-01-08)
The spillway
(Click for a larger image)

This area further up the Rudhall Brook is going to be the spillway. Here, as partially seen in the photo to the left, the bank will be lowered to form a green spillway.

The bank will be lowered so that when the level in the brook rises to a level that could overwhelm the banks further down stream towards Ross, then the water will flow out here and be retained behind the bund. The water level flowing down the brook and from the bund can then be regulated to greatly reduce the likelihood of flooding due to the Rudhall and Chatterley1 Brooks.

The spillway bank (19-01-08)
The spillway bank
(Click for a larger image)

Fiveways

This shows that the low parts of the site have flooded due to the heavy rains that have recently fallen. Below right is a great shot of the water spraying out over the tunnel sections.

Fiveways (19-01-08)
Fiveways
(Click for a larger image)
Water Spray (16-01-08)
Water spray
[Courtesy of Nuttall's]
(Click for a larger image)

Pipes at fiveways (19-01-08)
The pipes at Fiveways
[Courtesy of Nuttall's]
(Click for a larger image)

Here we see that the drainage pipes have now made it to the edge of the site at Fiveways.


This is the bifurcation chamber during the floods. As can be seen in the photo, various bits of the shuttering are floating around in the flood water.

Bifurcation chamber (19-01-08)
The bifurcation chamber at Fiveways
[Courtesy of Nuttall's]
(Click for a larger image)

Broadmeadows
Broadmeadows (19-01-08)
Broadmeadows
(Click for a larger image)

The tunnel sections have been added where the bridge over the Chatterley Brook1 once was. Unfortunately the heavy rain has flooded the area thus making work much harder.


This is a view from the other direction of the square pipes in the channel as the work continues on the bridge.

Broadmeadows from downstream (19-01-08)
Broadmeadows from the downstream side
[Courtesy of Nuttall's]
(Click for a larger image)

18th January 2008

Broadmeadows
Pipes being installed (18-01-08)
Pipes being installed
[Courtesy of Nuttall's]
(Click for a larger image)

Now the pipes have been added from just upstream of the Broadmeadows Caravan Park entrance bridge all around the site to a point somewhere between Broadmeadows Industrial Estate and the Kings Acre/Fiveways car park.


Homs Road

A back shunt has been added in order to allow the small engine, used to pull the trucks containing the spoil created during the tunnelling operation, to go into here as the trucks are slightly shorter than the shaft is wide, hence if the engine and the truck is in the bottom of the shaft then the spoil cannot be easily lifted up the shaft and into the spoil storage area above ground.

The back shunt being added (18-01-08)
The back shunt being added
[Courtesy of Nuttall's]
(Click for a larger image)
The both tunnels (18-01-08)
The back shunt and main tunnel
[Courtesy of Nuttall's]
(Click for a larger image)

16th January 2008

Broadmeadows

These pipes have been delivered and are to be used to pump water around the site so that building works can continue without the water from the streams flowing through the area.

Drainage pipes (16-01-08)
Drainage pipes
[Courtesy of Nuttall's]
(Click for a larger image)
Pipes being delivered (16-01-08)
The pipes being delivered
[Courtesy of Nuttall's]
(Click for a larger image)

Fiveways
The piles at Kings Acre (16-1-08)
The piles at Kings Acre
[Courtesy of Nuttall's]
(Click for a larger image)

These piles, each 5m long, are being driven into the ground so that a trench can be dug out without the sides collapsing. The tunnel sections can then be laid into the trench as it makes its way towards Broadmeadows from the Fiveways/Kings Acre Car park area. To the right can be seen the back of J.S.Carpets new store.

This method of working is easier then using the box clamps, which can be seen at the bottom of the shot (the yellow and green pieces of equipment), and should mean that progress will be quicker and easier for the people working in the trench.


Homs Road Shaft

In the photo the opening that can be seen to the bottom left is the where the tunnel boring machine will start its journey to the Fiveways/Kings Acre site.

Homs Road shaft (16-01-08)
The Homs Road shaft
[Courtesy of Nuttall's]
(Click for a larger image)

Metalwork (29-10-07)
The tunnel support structure
[Courtesy of Nuttall's]
(Click for a larger image)

This steelwork is the tunnel entrance support that can be seen in the shaft photo above.


This is a view looking from a different angle at the various bits of equipment that can be seen from the Rope Walk.

Floods at Homs Road (16-1-08)
The equipment at Homs Road
[Courtesy of Nuttall's]
(Click for a larger image)

Floods at Homs Road (16-1-08)
The floods at Homs Road
[Courtesy of Nuttall's]
(Click for a larger image)

Here the flood waters can be seen as being right up to the edge of the site.


15th January 2008

Fiveways

The sheer volume of water going over the sluice area can be clearly seen here.

The flood waters at the sluice (15-01-08)
The flood waters at the sluice
[Courtesy of Nuttall's]
(Click for a larger image)

Homs Road
The rising shaft (15-01-08)
The rising shaft at Homs Road
[Courtesy of Nuttall's]
(Click for a larger image)

Even though the River Wye has burst its banks, and the brook is very high, works still continue at the bottom of the rising shaft at Homs Road in preparation for the arrival of the tunnelling equipment.


Broadmeadows

Here the flood waters can be seen as nearly reaching the top of the tunnel sections which shows how deep the water was at this point.

Broadmeadows in flood (15-01-08)
Broadmeadows in flood
[Courtesy of Nuttall's]
(Click for a larger image)

10th January 2008

The CAT Excavator
The CAT excavator (10-01-08)
The CAT excavator leaving
[Courtesy of Nuttall's]
(Click for a larger image)

Here the CAT excavator has been loaded onto the back of a low loader down in the Broadmeadows area as it is no longer required.

The true size of the excavator can be seen in this shot when compared to the two people who are completing the loading procedure.


These pictures show the final stages of the building of the shaft in the Homs Road car park and were kindly supplied by Nuttall.

A specialised machine was used to dig the sandstone out from the bottom of the shaft. The sandstone was very hard hence a very powerful machine was needed. It was remote controlled (by the operator next to it) and electric powered to prevent the fumes causing a hazard in the confined space.

Homs Road shaft (29-10-07)
The Homs Road shaft 29/10/07
[Courtesy of Nuttall's]
(Click for a larger image)
Homs Road shaft (03-12-07)
The Homs Road shaft 03/12/07
[Courtesy of Nuttall's]
(Click for a larger image)

Previous work

Click here for the previous Flood Alleviation Scheme Work in 2007



next Flood alleviation Flood alleviation work 2007 previous


1 The brook referred to as the Chatterley Brook is actually a unnamed brook that flows from Weston-under-Penyard past Chackley Grove. It has only recently become referred to as the Chatterley Brook and locally it was previously known as Chackley Brook.

2 Flood Work Hit By Weak Teeth Ross-on-Wye Journal - Wednesday May 14, 2008


[Page updated: Feb 15 2011 13:31:59]






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