Culverts are tunnel-shaped structures that are considered one of the most important components of highway construction. They are placed under road or railway passages. The main use of culvert is to transfer flowing water to the other side of the road. Also, these culverts are used for under bridges, (points where it is necessary to build a bridge over a waterway), roads and train crossings. In fact, it causes the flow of water to be transferred from upstream to downstream. With this explanation, you can easily understand the importance of using roads, especially roads where there is a possibility of heavy snowfall, rain and floods.