Do you have what it takes to design your own bridge across the River Tweed?
Designs of bridges vary depending on the nature of the terrain and the function of the bridge. The Union Chain Bridge was originally designed for horse and carts carrying small cargo, but today is still strong enough for cars and lorries to travel over it. See if you can create a bridge that’s structurally sound and cost effective.
let's build

length of bridgepspan

height of pillars

materials

test your bridge



































length of bridgepspan

height of pillars

materials

test your bridge
How high do you want to make the main pillar supports? This will affect the height of the bridge deck, which people will travel across.
small medium tall


































length of bridgepspan

height of pillars

materials

test your bridge



































length of bridgepspan

height of pillars

materials

test your bridge
Your bridge has been constructed. Let’s test to see how strong it really is.
Choose a scenario.
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Engineering report






Not bad...but you can do better, try a different option to see if you can get 5 stars.
start again