Wagga’s Boral Bitumen depot
Bitumen is a component in road
building. In possibly a major
simplification, once the road surface is prepared, a spray of hot bitumen (or
“tar”), is spread across the surface, a layer of bluemetal is then dropped off
the back of a dump-truck over the hot tar surface, and a road roller is then
used to mash the bluemetal into the tar before the tar cools, and solidifies.
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Looking south east, the depot is on the left-hand side |
Transport of bitumen in railway bogie tank
cars started in NSW in the 1950s. I
suspect this is when Wagga’s Boral bitumen depot was built. Boral is a shortening of “Bitumen
and Oil Refineries (Australia) Limited”
The location of the depot was sited off the Tumbarumba branch
line, east of the Lake Albert Road level crossing. At the time of its construction, it was on
semi-rural land, but subsequent growth in East Wagga has surrounded it with
industrial development
Since 1980, I have been taking photos of the depot from the rail
line. Initially it was just out of
curiosity, but later, as my idea of a layout based on Wagga was forming, I knew
I needed more pictures. I gained
permission in July 1999 to photograph the depot “from the inside”. Unfortunately, by 1999, movement of bitumen
by railway to Wagga had ceased.
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1971 aerial view. A tank car sits on the siding |
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Unloading pipe, and winch |
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Unloading pipe, and buckets. The buckets were to collect the drips, to stop oil contamination in the soil. Probably wouldn't be allowed today, the whole area would be concreted, with a sump. |
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Points lever frame at the far end of the loop |
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Derail detail at the far end of the loop |
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Add caption |
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The hand cranked winch. The winch looks like the same design that is used on the NSWGR 5 ton crane. Assume that the winch was used to move a tank car to the correct position for unloading. Note the second unloading pipe in the distance. |
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Steam pipes are attached to the tank car. These pipes are used to heat the contents of the tank car, to allow the car to be unloaded. How long is the process to heat the tankcar? Something that is not obvious in the picture, is the smell |
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The rail service had ceased by this stage - the tanks are in their original silver colour |
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July 1999 - the depot had been repainted green. |
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The 5 tanks seen from inside the depot |
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Ladder and railing detail for the 5 tanks |
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Loose sand, and gravel bins on site |
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4 tanks at the SE end of the site |
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I believe this is the steam shed. I don't know what fuel is used to heat the steam, but it is probably one of the products shipped from the refinery |
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The Depot "Office" |
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Tanks and trucks |
I suspect that different grades of oil are transported, in addition to
bitumen to the Wagga Boral site. The differences in the tanks is most likely the key - the smaller tanks are small enough to be heated by steam, whereas the oil in the larger tanks is most likely liquid at room temperatures.
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2015 Image from "six maps". All the tanks on the railside fence looks almost unchanged. |
Modelling notes
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NTBF 4706 at the Boral Depot - Wagga
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My SDS model of the NTBF tank car - really needing weathering. Of note, the spelling of "litres" :- on the model is spelt "liters", and the length of the car is "meters" and not "metres". I am not sure this american spelling is correct, but this is nit picking on what is a superb model. The steam pipe connections are there on the RHS end. |
Below information obtained from the Australian
Modeller Website. Used with thanks
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36’ BITUMEN and HEAVY OIL RAIL TANK CARS
Between 1957 and 1959 Tulloch Limited constructed 12 rail tank
cars designed to carry bitumen or heavy oil products. The underframe design was
standardised between all 12 cars, being 36’ long over headstocks with 6”
channel solebars. Bogies were standard RTC 5’6” wheelbase with 33” diameter
wheels. Wheel centres were spoked or 4 hole disc.
Of the twelve cars constructed, two 5000 gallon cars were built
for Ampol, these were unlagged. They were designated to carry black oil
products and fitted with steam heating coils to assist with content discharge,
if required. They were numbered AMP No.32 and No.33 and painted corporate blue,
later becoming NTBF 4032 and 4033 and re-painted black.
Nine 7500 gallon cars were built for Bitumen and Oil Refineries (Australia)
Limited, BORAL, all of these cars were lagged. Cars RC100 to RC108 were fitted
with steam heating coils, RC107 and RC108 were also fitted with gas burner
heating tubes and end flues. The gas burner fittings were identical to the road
tankers, which allowed content heating with the road tanker equipment. All were
clad in polished aluminium sheeting with black painted metal work.
Later RC100, 101 and 102 had the lagging removed but retained
the steam heating coils for black oil products. The BORAL registered cars
migrated to the TOTAL fleet in the 1970s; TP100 was re-painted black and TP101
and TP102 were painted Indian red with orange TOTAL branding.
One further car (7500 gals) was built for BHP.
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All the above cars were recoded NTBF. In 1982, Total had 22 NTBF tankers in service. Bitumen was shipped from Shell’s Clyde
refinery by rail until sometime in the 1990s.
Shell closed the Clyde refinery in 2013.
Bitumen is now imported to a terminal in Port Botany, and distributed by
road
An article on building a Bitumen wagon was written by
Howard Armstrong in AMRM issue 19, over 50 years ago,
Disappointingly, there has been nothing since in AMRM, or Branchline Modeller/AJRM, not even a review of the Bitumen tank wagon.
I have been unable to find a lot of information
about bitumen transportation by rail.
There are still a lot of questions that to me, remain unanswered. Thanks must go out to SDS Models for
producing the bitumen tank wagon. I note that all
versions have sold out, although I for one, am hoping they will do a rerun
– particularly as my pair of wagons is too late for my time period.
I have started drawing plans for the depot. I have chosen 1:100 scale, but even so, the depot will extend for over a metre besides the track. I will have to wait until I get the track down before starting construction, as I may have to employ some more selective compression
Continuing my exploration of the railway at
Wagga, has given me a better understanding, and appreciation of railways in
general.. I hope that this will culminate into a better model operation. And if nothing else, maybe, my small article
will be the incentive for anyone wanting to build their own Boral depot
Until next time.