Planning The Railroad
Though the initial layout design was drawn on paper, it wasn't until
it was "mapped" out in the yard were we able to visualise the over all
appearance. Unlike building a basement layout, the ground contours have
already been provided by mother nature and we must build the railroad around
it. Just like the prototype!
To help visualise and fialize the track placement, a garden hose was
laid out marking the main line.
A five foot minimum radius was maintained throughout.
Here the garden hose marks out the right of way. The ground slopes
away from the house (we would have preferred slopping towards the house)
but the change in ground height will make the railroad far more interesting.
The main line was ultimately rerouted to the left of the small tree.
After the first year this tree was removed as it shaded the garden plants
too much.
We are careful not to disturb the wooden stakes as they mark the track
centre line and will be used to guide our earth moving activities later. |
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Moving Heaven and Earth
Now comes the stage where you can truely "feel" the railroad come together!
After the track aligment and grade is determined, out come the shovels
and we start digging the road cuts and filling the valleys. We did introduce
a slight height difference of 6" from Hancock to the hillside. This was
enough to make it nociable when running a train but not enought to warrant
doubling heading trains.
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Many rocks were "discovered" as we dug into the ground while others
came from the previous layout.
Notice the track stakes are still in place. |
The perimeter of the garden is now taking shape and placement of the
vegetation was underway.
Note, the track stakes are still in place thus ensuring we don't lose
track centre line. |
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As the terrain was nearing it's final configuration, we can start building
the roadbed.
Our chosen method for mounting the track is to lay out a bed of stone
dust and position the track on top of it. Thus the track is allowed to
"float" on this material with no permanent form of fastener. We have found
this works great in our climate of hot summers and sub zero winters.
Step 1:The location of the track is roughed in by postioning
the track in it's final location using the original stakes as a guide.
1"x1" stakes are placed 3" from the centre line of the track to mark where
the garden edging will be installed.
The track is then removed and the dirt between the stakes is removed
to a depth of 3". |
 |
 |
Here you can see the ground contour is determined at the same time
as when the track alighment is finalized. A trestle will eventually appear
in the top right corner of the picture and the passing track at Hancock
across the top. The rocks in the middle will eventually be stacked to make
a small hill. |
Step 2:Garden edging is installed along the sides of the trench
against the stakes. Stone dust is then carefully shovelled in the middle
and is packed down by walking on it and through watering. This is leveled
off and is now ready for the track to be installed.
Note the track splits at this point where the track to the lower right
is the main line while the other heads back to Hancock. |
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Here is what the finished product looks like beore the track is installed.
The wooden stakes can now be removed. |
Step 3: After the track is positioned, a light dusting of stone
dust is deposited on the track to blend the track into the 'ballast'.Building
this channel and installing the track is a long process that requires constant
measuring and re checking to ensure the track flows smoothly, looks right
and above all, has the correct grade. As in the prototype, the trains notice
any slight variation in the grade. Time spent at this stage, is a good
investment towards future enjoyment.
Now I only speak the half truth regarding the stability of the
stone dust road bed. Up here in Ontario, Canada, the ground freezes every
winter from Nov to April. The frost typically reaches 3 feet into the ground
but has been know to hit 5 feet when the snow cover is thin. Thus anything
stuck in the ground are subject to the wild forces ice has on everything.
Garden railroads are no exception. The stone dust freezes rock hard along
with the track in it. This is fine, the plastic ties and metal rail can
take this temperature swing just fine. The only issue is that the frost
has the ability to migrate solid objects up through the ground from year
to year. That's why farmers always have to contend with new rocks in the
fields each spring. Well, this frost action also has the ability to lift
the ties out of the stone dust, so come spring when the ground thaws and
dries, we find the track sitting on top of the stone dust. But remember,
the track isn't fastened down, so a couple of hours spent agitating the
track back and forth positions it back into the stone dust. Also, any minor
alignment adjustments can be made at this time. So aside from this slight
inconvenience, the track has survived 7 winters unscathed!
The second draw back of stone dust is the need to weed on a regular
basis! Since this is part of the railroad's right of way, Frances kindly
reminds me that this is my responsibility!
This Web page is written and maintained by Grant
Knowles.
This page was last updated on Oct 10th, 1999.
This page has been accessed times
since Oct 99.
URL: www.victorian.fortunecity.com/gn3/articles/gn3_track.htm