Additionally, metal pipes can be heavy, inflexible, and difficult to cut if they need to be trimmed to fit the culvert trench. First of all, even when galvanized, metal corrodes and rusts over time, especially when the water or surrounding soil has a high or low pH balance. Still, there are some downsides to metal culverts. Corrugated metal is strong, reasonably affordable, and can be adapted to resist corrosion through galvanization. This article explains the three main materials used to build culverts-plastic, metal, and concrete-and their pros and cons in culvert construction.Īluminum and galvanized steel are popular culvert building materials. Recurring temperature fluctuations (freezing and thawing) can also lead to structural damage.Ĭertain materials will hold up to different forms of deterioration better than others. If the material used to build the culvert has not been correctly installed or is not strong enough to withstand heavy loads driving over it, it may buckle or crack. ![]() The recurring bearing of heavy loads and other physical wear and tear can also damage pipes. ![]() Abrasion occurs when materials brought into the culvert by water, such as sand and small rocks, scrape against the pipe wall and damage it over time.
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