Nautical Term: Manhole cover
Definition of Manhole cover
A manhole cover is a large, circular, locking device that seals a manhole access point in a body of water or along a roadway. Manhole covers are typically made of cast iron or steel and are designed to lock securely in place by twisting or using a centerbolt, studbolts, or dogs to prevent unauthorized access and ensure public safety.
For example, a city’s water utility department may need to perform routine maintenance on a water distribution system. A team of utility workers, dressed in protective gear, would use specialized tools to carefully remove a manhole cover, exposing the access point to the water distribution system. The workers would then perform any necessary repairs or inspections before replacing the manhole cover, ensuring that the water utility system remains safe and reliable for the public.
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