Truss arch bridge
Have you ever played with building blocks or Legos? Think of a truss arch bridge as a really big version of that! A truss arch bridge is a bridge that has lots of little blocks called trusses that are connected together to make a strong shape like a giant arch.
The trusses are made up of triangles, which are very strong shapes, and they are connected together with metal bars or wires. This makes the bridge able to hold a lot of weight without breaking.
When you drive or walk on a truss arch bridge, your weight gets spread out evenly across all of the trusses and the arch, so no one area has to hold too much weight all at once. That's why truss arch bridges are so strong and durable!
The trusses are made up of triangles, which are very strong shapes, and they are connected together with metal bars or wires. This makes the bridge able to hold a lot of weight without breaking.
When you drive or walk on a truss arch bridge, your weight gets spread out evenly across all of the trusses and the arch, so no one area has to hold too much weight all at once. That's why truss arch bridges are so strong and durable!