Manhole

Definition

A hole through which a person may go to gain access to an underground or enclosed structure.

Purpose

Manholes provide access to underground utility systems such as sewers, storm drains, electrical conduits, and telecommunications cables. They facilitate maintenance, inspection, and repair of these systems.

Examples of Use

• Sewer systems: Accessing underground sewer lines for cleaning and maintenance.
• Electrical utilities: Gaining entry to underground electrical conduits for inspection and repairs.
• Telecommunications: Servicing and upgrading underground communication cables and infrastructure.

Related Terms

• Access Hatch: An opening in a floor, ceiling, or wall providing entry to a confined space.
• Utility Vault: An underground room providing access to public utility services.
• Inspection Chamber: A chamber providing access for inspecting and cleaning sewer pipes.

Notes

• Manholes must be properly secured to prevent unauthorized access and ensure safety.
• Regular inspections are essential to maintain the integrity of the structures they provide access to.
• Manholes are typically marked with covers indicating the type of utility they serve.