access chamber
brown
cable chamber
circle
circular
city
confined space
construction
corroded
corrosion
cover
dirt
dirty
drain
drainage
dry
ground
hatch
heavy
hole
industrial
industry
inspection chamber
iron
lid
maintenance hole
manhole
metal
old
plate
round
rust
rusty
sand
sandy
sewer
sewerage
soil
steel
surface
top
underground
urban
utility hole