A manhole is an access opening in a sewer, drain, or utility system, usually covered with a removable lid, that allows workers to enter for inspection, maintenance, and repair. Manholes are essential components of sewer and stormwater systems, providing entry points for cleaning equipment, cameras, or personnel. They are typically constructed from concrete, brick, or metal and are designed to withstand heavy loads, making them suitable for installation in streets, sidewalks, or other high-traffic areas. Regular inspection and maintenance of manholes help ensure the proper functioning of underground plumbing systems and prevent blockages, leaks, or other issues.
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