Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Modular Bridge Pack Free.
Modular Bridge Pack v1.1
I present to you, modular bridge pack. High quality, low poly game art. Perfect for any game, from fantasy, to driving. Unique asset with character and great look. Each bridge is made from three pieces, middle part and both ends, plus additional wooden booth.
Bridges are fully modular, they stick together nicely, with or without middle part and you can make the bridge as long as you want. The wooden booth fits on both bridges and is modular too.
Package also contains prefabs, with 4 bridge variations, that you can just throw on the scene and it’s done. Each bridge uses one material. Diffuse map, normal map and specular map are included, all 1x1k and can be scaled down.
Wooden bridge – 856 poly (Both ends+middle)
Metal bridge – 850 poly (Both ends+middle)
Wooden booth – 228 poly