Army Hill reconstruction
Much of the preliminary works were filed under ‘Waratah Loop’, but now that work has started in earnest on the hill, a separate page is in order.
Jump to –
- February 2016
- November 2016 – nearing the summit.
- Final pour – last major concrete pour. Track complete.
- Cleaning the track with the scrubber car 134s.
- Final concrete on hill – track completed.
After a break, some more activity to report – the old rails from ‘Army Hill’ have been dragged up to the loop itself and welding has started to make this long continuous lengths.
At some point soon Army Hill will get regraded so that it’s a constant slope all the way down, at the moment the slope has a ‘hump’ in it, and then reconstruction of the actual track will commence.
While a reopening is still a long way off, things are moving forward.
One the 20th of June, Canini graded Army Hill and then started excavation of a trench down the middle for conduits.
After much work in welding of rails then placing, jacking, aligning, etc, etc, on the 23rd of October a milestone in this project was reached – the first concrete went in. Using 5m³ of purchased concrete, the job was started.
A time-lapse of the days work –
And we are off and running. Our concrete supplier dropped of a small amount of surplus. Not much but every bit helps.
Work is rapidly progressing in a push to quickly get one car length past the crossing available to make nicer area to turn traffic trams around in.
The pole at this location was always a compulsory stop on the way down the hill.
Work has been steadily proceeding over the last few weeks on Army Hill. Many small loads of surplus concrete have arrived and some times under quite hot conditions this as been accepted and placed, at times drafting in members who normally work at other locations and other projects to assist.
Here Brisbane Dreadnought 295 makes an inspection of the works and hopes it can soon run up this hill again.
A good load of concrete arrived in the afternoon resulting in quite a length of track being locked in.
Another good load turned up this Wednesday. The concrete is now to the 2nd pole. Seems there has been a rush of construction in the local area this December. However January is pretty dead for construction and the local concrete plant often shuts for much of January so this sudden burst of construction on the hill will probably back off for a short while.
After a summer break (the building industry takes a break over December/January, so the local concrete plant stands down), work has resumed.
At the top of the hill, work has been slowly progressing on what will become the southern end of ‘Waratah loop’.
A good load of concrete saw concreting on the hill and up at the Waratah Loop points.
This now gives about a ‘standard car length’ of completed Army Hill track.
Concrete went in on the previous Wednesday AND on the Saturday. Some was purchased and some was donated. Concrete also went in at the Waratah Loop points.
Most of the concrete we got this Saturday went up top at Waratah, but some was put on the Hill as well.
While nothing has been reported for a while, the concrete has been slowly advancing, on this day extra people were available and concrete was ordered to be used on the hill. A small amount was also placed at the Waratah Loop points. This got a few more metres added to the track.
While there has been nothing posted for a while, as only small amounts of concrete arrived, it was put either on Army Hill or at the Waratah loop south points, but major work focused on the points.
Early October focus switched back to the main track on the hill.
The last shot shows the gap in the rails between the work proceeding up the hill and the start of Waratah Loop. This is to avoid the new track being warped by expansion and contraction of the unsecured rails in the sun and affecting the line and level of the new track. The gap in the rails will not be closed until just before the final segment of concrete is to go in.
A report from one of the workers on this day –
Yesterday we placed 5 metres of paid concrete (many thanks to our supporters’ donations) on Army hill and just as we went to move on to other tasks a full truck (5 metres) of surplus concrete turned up from Concrite, followed by a further truck with 1.5 metres.
A very very, busy time for our track workers and their CSOs helpers saw all 11.5 metres placed and finished on Army Hill. Thanks to all involved for their terrific efforts.
A small delivery, but it does mean another few metres of track a locked in. And small delivery is all we could handle with only a ‘skeleton’ crew available. Only about 20 metres left till the new Waratah Loop points are reached.
The Wednesday crew thought they had enough people to deal with a small amount of concrete. 5m and 4 trucks later, a very exhausted work crew, got another couple of metres of track locked into position.
Very soon the final welds that rejoin Waratah loop to the rest of the tracks will be made. These welds haven’t been done so far as to leave an expansion gap, ensuring that on hot days the track doesn’t get pushed out of line.
The closure rails have been finally installed connecting Army Hill to Waratah loop. This will allow the last 12 metres of track to be concreted.
6m³ of concrete was purchased. Fortunately, this day was a bit cooler than earlier in the week, however, it was still a struggle to finish off such a long pour.
The concrete truck drivers demonstrate their skill with their heavy trucks by backing up the track from the Army Crossing. I suspect some of these drivers could thread needles with their trucks.
The gap is getting ever smaller. Photo photos looking down the hill were taken from the new Waratah loop points, which are out of sight under the feet of the photogapher.
Small amount of concrete on this Wednesday allowed another 2m to be locked in. With the next ‘pull forward’ of the formwork, the Waratah Loop points will be reached. A lot of ‘minor’ earthworks will be needed to finish off the hill before it can be handed back to ‘traffic’.
Some backfilling. The spoil has come from trackbed excavation at the loop. Over the next month or so, much spoil will be moved to provide a sloped side to the new concrete track. The final gap has not yet been concreted. The highly variable weather of late has caused the two of the welds to crack after a particularly cold night. The rails will now only be rewelded the same day the final concrete is due to arrive to prevent another cold snap doing it again.
On this Saturday, another 6m³ on concrete was purchased to allow the gap to be filled in all in one pour. The truck was supposed to arrive at 10:30, but traffic in ‘The Shire’ was bad and the local concrete plant rang to say all their trucks were caught in traffic and running late. About an hour later than hoped the truck turned up and work started.
Shortly 2 more trucks appeared with small amounts of surplus they wanted to get rid of. This was used on Waratah Loop (East). At one point we had 3 trucks on site at the same time.
In the afternoon, after the concrete had been finished, Ballast Motor 42s was run allmost up to the wet concrete with the large timbers for the new waiting shed seat. The closer 42s got to the top, the less distance the large seat had to be carried. 42s is no stranger to supplying contruction sites, both in museum service and back in it’s days of working on the Sydney Tramways.
With this, the major construction work on this long awaited project is complete. The job isn’t complete yet however. There are still two small sections of ‘4ft’ to be finished, a lot of earth works to fill in on each side of the slab track and a major tree pruning – over the years the line has been unavailable for traffic, the trees have been encroaching. These tasks will have to be completed before the track is ‘handed back to traffic’.
Works car 134s, configured as a track ‘scrubber’ is run over the new track to clean the layer of cement and rust of the rail head.
A camera was attached to the underframe of 134s to capture this task from near ground level.
January 14th, 2017
99u was used to assist with tree trimming duties, cutting back trees that had been encroaching on the track. Both hand and power tools were used and CSO workers helped remove the branches and take them up to Waratah Loop for mulching.
Minor earthworks are needed before the track can be opened to regular passenger use. The track, however, is open for training purposes. The track has not been in use for so long that all drivers need to be re-tested on their ‘route knowledge’ before taking a tram in passenger service down the hill.
The ‘gaps’ in the ‘4ft’ were filled. All track construction for Army Hill is now completed. Backfilling the sides is still needed and more concrete will be needed at the Army top gate near the Waratah loop points to allow road vehicles to cross the track to the gate, but the actual track is now complete.
April 8th, 2017
Spoil from Waratah loop is placed on the track cess to build up the soil beside the track to the level of the concrete slab. This task needs to be completed before the line can be opened to passenger traffic.
Another day or 2 of excavator work is required to complete this. There are stockpiles of spoil at various locations along the Sutherland line that will be used as source material.