A classic inspired medium low-poly bridge.
You could pass a river with this, I'm sure of it. See how in The Aquatic Ruiners Pack!
BLEND (Blender, filesize: 835 KB), FBX (Autodesk FBX, filesize: 39.2 KB), DAE (Collada, filesize: 155 KB), STL (Stereolithography, filesize: 40.7 KB)