Vault covers are used by water, power and utility companies to access electrical wires, pipes and other equipment that need to be accessible for workers.  Vault covers made with diamond plate can become extremely dangerous to pedestrians, vehicles and workers.  These vault covers are typically installed on sidewalks and streets.  When the vault covers become slippery from oil from vehicles and weather elements such as rain, they become extremely slippery.  This creates a slippery hazard for pedestrians and drivers utilizing them.

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