maintenance tunnel
Hidden utility passage
A maintenance tunnel is a narrow passageway built into structures like buildings, subways, or utility systems to allow workers access to pipes, wiring, and mechanical equipment.
These tunnels run behind walls, beneath floors, or underground, hidden from public view: The electrician entered through a maintenance tunnel beneath the stadium.
In fiction, maintenance tunnels are favorite escape routes and infiltration paths.
- undergroundBelow ground or countercultural
- accessRight to enter
- crawlspaceShallow accessible foundation area
- crawl spaceShallow area under a house
- pipesCylindrical fluid carriers
utility · conduit · service · bunker · emergency exit · escape route · concrete · low ceiling · dim · echoing · grate · hatch · ladder · ventilation · industrial · drainage · cables · damp
maintenance tunnelpedestrian walkway
Path reserved for walkers
passenger terminal · shopping arcade · promenade · hotel lobby · public gallery
maintenance tunnelglass walkway
Transparent elevated pedestrian passage
skybridge · atrium · observation deck · reception hall · VIP entrance
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