Category
page 1Public utilities
public utility
organization that maintains the infrastructure for a public service

manhole
thumb|Postmaster-General's Department|PMG manholes in a city street, [[Perth, Western Australia]]
thumb|Sanitary manhole|Manhole being used to access sewer
thumb|Installation of a fiber-optic manhole in Brooklyn, New York
thumb|An uncovered manhole in Beirut, Lebanon
A manhole (utility hole, maintenance hole, or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel. Manholes, typically protected by a manhole cover, are often used as an access point for an underground public utility, allowing inspection, maintenance, and system upgrades. The majority of u
electricity supply company
type of electric power company
Averch–Johnson effect
utility location
process of identifying and labeling public utility mains that are underground
municipal wireless network
wifi network maintained by local government