Building an embankment

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GAP

G Scale Trains, HO Trains, 1:1 Sugar Cane trains
14 Jun 2011
3,438
764
Bundaberg Queensland, Australia
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Australia
ringbalin-light-railway.blogspot.com
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Due to ground subsidence (possibly where a tree was removed 3 years ago) an area of my baseboard sagged by about 30mm or more, this led to a large dip in the track with wagons uncoupling as the passed over the high points at either end and rainwater ponding in the low points in the centre.
P1070192.JPG
Amount of sag

Initially I thought I was faced with the prospect of digging up the centre supporting posts and raising the base board to level it off.
Further inspection revealed that the lattice frame supporting the area had bowed in the middle due to the centre supports sinking so the whole section would require replacement. This looked like turning into a major bit of work.


P1070199.JPG
Offending lattice piece

After a bit of thinking I came up with the idea of leaving everything in place and building an embankment across the area which would raise the track and make the it level.
I have started by obtaining a level for the track using a couple of string lines I then leveled up the track using spacer blocks.


P1070194.JPG

P1070195.JPG
The section where the sag has occurred

P1070197.JPG

P1070198.JPG
Spacer blocks


I intend to build the embankment using acrylic render mixed with some fine gravel, to save the amount of render needed and to reduce the weight.
I plan to put in a couple of low bridges this will allow the water to run under the track and into drainage hole drilled through the baseboard.
In these holes I plan to put in some wicks to break up the water surface tension at the side of the holes and allowed water to flow down them into the garden below.
 

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
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St.Neots Cambridgeshire UK
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Wood baseboards? If so I would suggest larger holes for the drainage with lots of roofing felt black mastic to line the holes. This should stop any dampness getting into the wood. Your wick idea is also sound.
 

GAP

G Scale Trains, HO Trains, 1:1 Sugar Cane trains
14 Jun 2011
3,438
764
Bundaberg Queensland, Australia
Country
Australia
ringbalin-light-railway.blogspot.com
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Wood baseboards? If so I would suggest larger holes for the drainage with lots of roofing felt black mastic to line the holes. This should stop any dampness getting into the wood. Your wick idea is also sound.
Fibre Cement baseboards, painted.
Probably use silastic to line the holes, I am considering slots disguised as water channels.
 

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
23,783
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St.Neots Cambridgeshire UK
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Fibre Cement baseboards, painted.
Probably use silastic to line the holes, I am considering slots disguised as water channels.
Oh good, another thought I wonder if fake grass may work for the embankments?
 

GAP

G Scale Trains, HO Trains, 1:1 Sugar Cane trains
14 Jun 2011
3,438
764
Bundaberg Queensland, Australia
Country
Australia
ringbalin-light-railway.blogspot.com
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Oh good, another thought I wonder if fake grass may work for the embankments?
Fake grass is definitely in the plan for the embankments, picture 3 shows an embankment with fake turf in the background.
Better picture here;
4 December 2020 Grassy Bank/Hillside
I am going to use a lot of fake grass in all my scenery.
 

DafyddElvy

1:22.5 & 15mm Scale Trams, , NG Steam Railways
10 Feb 2021
777
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West Lothian
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Scotland
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I definitely like the use of the string, I try teach graduate engineers the importance of a string line and a tape measure.

Please keep sharing the pictures, I will be starting the outdoor tramway this year and all these ideas are great to put in the pot to pull out when required, its looking good.
 

GAP

G Scale Trains, HO Trains, 1:1 Sugar Cane trains
14 Jun 2011
3,438
764
Bundaberg Queensland, Australia
Country
Australia
ringbalin-light-railway.blogspot.com
Best answers
0
Country flag
I definitely like the use of the string, I try teach graduate engineers the importance of a string line and a tape measure.

Please keep sharing the pictures, I will be starting the outdoor tramway this year and all these ideas are great to put in the pot to pull out when required, its looking good.
Stringlines and tape measures are a must for seeing differences in levels when building things.

There are plenty of pictures of how I built the railway here, includes loco and rolling stock pages and a bit of electronics.
 

GAP

G Scale Trains, HO Trains, 1:1 Sugar Cane trains
14 Jun 2011
3,438
764
Bundaberg Queensland, Australia
Country
Australia
ringbalin-light-railway.blogspot.com
Best answers
0
Country flag
More progress on the embankment area.
I roughly painted areas where there will be a dry river bed a light brown, the embankment areas are in the red colour while the bright green is where artificial turf is in the plan.
Bridges are indicated by pieces of wood.
All the points will be on embankments.

P1070204.JPG P1070205.JPG P1070206.JPG P1070207.JPG
 
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