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EN: Model of a prefab concrete box culvert. This model is half height so you can pretend that the bottom half is under water. Half profile culverts are also used for real on a concrete floor. Culverts are very common around railroads and come in many varieties, shapes and sizes. See my other culvert products for headwalls and other types of culverts.
NL: Vierkante duiker. Zie ook mijn andere modellen van duikers.