manhole cover
Heavy urban lid
A manhole cover is the heavy lid, usually circular and made of cast iron, that sits over a manhole—an opening in a street or sidewalk that provides access to underground utilities like sewers, electrical lines, or telecommunications.
The circular shape prevents the cover from falling through its own hole: Workers lifted the manhole cover to inspect the pipes below.
Functional worth or purpose
- sewerUnderground drainage pipe
- drainageLiquid removal system
- water supplyProvisioned H2O delivery system
- gas linePipe carrying natural fuel
telecommunications · conduit · underground · subsurface · public works · civil engineering · city planning · excavation
Forming a closed curve
- roundCurved like circle
- discFlat circular object
- lidRemovable container cover
- rimCircular outer boundary
flange · seated · flush · recessed · frame · ring · diameter · circumference
Brittle iron-carbon alloy
- heavyOf great mass
- ponderousAwkwardly heavy or slow
- massiveExtremely large and heavy
- denseClosely packed together
solid · sturdy · durable · weighty · heft · substantial · reinforced · thick
Urban corridor's appearance
- pavementHard road covering
- sidewalkPaved pedestrian pathway
- roadwayPaved surface for traffic
- intersectionPoint where paths meet
curb · gutter · asphalt · concrete · boulevard · avenue · alleyway · crosswalk
Access or submission
- egressMeans of departure
- hatchOpening in deck or floor
- openingGap or start
- ladderPortable climbing frame
descend · ascend · confined space · portal · ingress · inspection · maintenance · utility workers
Contaminated drainage from buildings
- sewageLiquid refuse in drains
- sanitationCleanliness for public health
- drainageLiquid removal system
- effluentDischarged liquid waste
treatment · contamination · overflow · sludge · odor · stench · gases · methane
Recurring arrangement or template
- embossedHaving raised design
- logoCompany identifying symbol
- city sealOfficial municipal insignia
- decorativeServing to beautify
artistic · custom · commemorative · vintage · antique · collectible · text · raised lettering
Protected from harm
- lockableAble to be secured
- slip-resistantPrevents sliding or skidding
- non-slipPrevents unwanted movement
- texturedHaving tactile surface quality
reflective · high-visibility · hazard · fall protection · accident prevention · warning signs · traffic cone · barricade
utility
Functional worth or purpose
- sewerUnderground drainage pipe
- drainageLiquid removal system
- water supplyProvisioned H2O delivery system
gas line · telecommunications · conduit · underground · subsurface · public works · civil engineering · city planning · excavation · installation
circular
Forming a closed curve
rim · flange · seated · flush · recessed · frame · ring · diameter · circumference · square
cast iron
Brittle iron-carbon alloy
dense · solid · sturdy · durable · weighty · heft · substantial · reinforced · thick · cumbersome
streetscape
Urban corridor's appearance
intersection · curb · gutter · asphalt · concrete · boulevard · avenue · alleyway · crosswalk · street furniture
entry
Access or submission
ladder · descend · ascend · confined space · portal · ingress · inspection · maintenance · utility workers · work crew
wastewater
Contaminated drainage from buildings
- sewageLiquid refuse in drains
- sanitationCleanliness for public health
- drainageLiquid removal system
effluent · treatment · contamination · overflow · sludge · odor · stench · gases · methane · hydrogen sulfide
pattern
Recurring arrangement or template
decorative · artistic · custom · commemorative · vintage · antique · collectible · text · raised lettering · diamond plate
secure
Protected from harm
- lockableAble to be secured
- slip-resistantPrevents sliding or skidding
- non-slipPrevents unwanted movement
textured · reflective · high-visibility · hazard · fall protection · accident prevention · warning signs · traffic cone · barricade · OSHA
- public worksstreets, sidewalks, sewers, traffic lights, stop sign
- streetscapestreet lamp, street trees, streetlight, street furniture, street light
- urban infrastructurepower grid, parking lot, highway, water supply, sewage system
- coversdust jacket, book jacket, protective sleeve, lid, pot lid
- metal coverspot lid, hubcap, bottle cap, can lid, metal cap
- curbsidecurb, kerb, gutter, curb cut, curb cuts