Culvert - Types

Types

Transportation routes cross over waterways using either a bridge or a culvert. Culverts come in many sizes and shapes. Shapes may include round, elliptical, flat-bottomed, pear-shaped, and box. Culverts may be made of concrete, galvanized steel, aluminum, or plastic, typically high density polyethylene.

Two or more materials may be combined to form composite structures. For example, open-bottom corrugated steel structures are often built on concrete footings, or corrugated.

Plastic culvert liners are also inserted into failing concrete or steel structures in order to repair the structure without excavating and closing the road.

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