A "manhole cover" or "mainhole cover" is a heavy, typically circular or square lid made of metal, concrete, or other durable materials that is used to cover and secure access points to underground utility infrastructure, such as sewer systems, stormwater drains, water supply lines, electrical conduits, telecommunications cables, and other subsurface structures. These covers are also known as "manhole lids" or "utility hole covers."
Security: They serve as a barrier to unauthorized entry, protecting the underground infrastructure from tampering, vandalism, and other unwanted access.
Access: They allow authorized personnel, such as utility workers, maintenance crews, and inspectors, to gain access to the underground utility systems for maintenance, repairs, and inspections.
The design, placement, and maintenance of manhole covers are crucial for the safety of pedestrians and the functionality of utility systems within urban and industrial environments.
