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Small bridges  RSS feed

 
pollinator
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I want to build a small bridge over my chicken moat to get to my geodome green house. Looking at this earthbags could be the way to go? Im thinking reinforcing rods for the span and off set bags for the steps.  
 
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Amanda Launchbury-Rainey wrote:I want to build a small bridge over my chicken moat to get to my geodome green house. Looking at this earthbags could be the way to go? Im thinking reinforcing rods for the span and off set bags for the steps.  


I can imagine that this would work if you drained the moat while you constructed the bridge with gravel-filled bags and covered the entire structure with hefty cement stucco with plaster mesh embedded.
 
Mandy Launchbury-Rainey
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Thank you, Kelly!
 
pollinator
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I am not a huge fan of concrete, but you would get a very sturdy bridge abutment if you mixed gravel and cement into bags and then set them in place. Moisture in the air and in the soil would harden it like the concrete it is. You can do this with paper bags and let the bags deteriorate on their own, OR after it is hardened, set them on fire to burn off the paper.

It is called bagcrete and works well.
 
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Wait. Drained the moat??

What sort of chicken moat do you have? I don't know any designs that include water. Did they mean to drain it of bedding and litter??
 
Mandy Launchbury-Rainey
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Shalom Eigenheimer wrote:Wait. Drained the moat??

What sort of chicken moat do you have? I don't know any designs that include water. Did they mean to drain it of bedding and litter??



The dome and salad veg bed are in the centre of an area, the chickens have a wider circle to roam around ths outside, hence the  moat. They protect the inner circle by cleaning up any bugs that try to cross. We access the inner circle via a bridge over the moat, i.e. the chickens pass underneath and also get protection under the bridge, but they cannot get to the veggies or dome. No water involved.
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Why not be practical and use either timber beams, or even scrap steel that is the correct shape and size.
The way I see it, its very straightforward and would not need cement products.
How far are you spanning, it looks like about 5 feet?
 
Mandy Launchbury-Rainey
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John C Daley wrote:Why not be practical and use either timber beams, or even scrap steel that is the correct shape and size.
The way I see it, its very straightforward and would not need cement products.
How far are you spanning, it looks like about 5 feet?



Yes I had thought about that but i posted this in Earth Bags to get some different opinions.
 
pollinator
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How wide is the moat? Like do you need more than a plank to walk across it safely? Length of span is important in deciding what kinda bridge is appropriate.

EDIT man, why do I always not see the most recent post that answers my questions?
 
John C Daley
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I think it happens because people do not slow down and read the responses.
 
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