manhole cover

manhole cover, drainpipe, elevator shaft, culvert, drainage ditch, trench, pipe, septic tank, sump, sinkhole, creek bed, stairwell, crawlspace, hydrant, retaining wall, chimney, cistern, ventilation shaft, underpass, flue pipe, dumpster, creek, debris, nullah, transformer, pond, sewage, ravine, sewer, downspout, roadway, gutters, waterline, soakaway, mineshaft, backhoe, substation, hose, overpass, sidewalk, outfall, drains, tunnel, alleyway, driveway, crevice, duct, stairway, staircase, cavern, excavation, walkway, shaft, pipework, excavator, floor joist, embankment, ledge, guardrail, workmen, standpipe, hatchway, underbridge, compactor, stopcock, pavement, switchyard, scaffolding, basement, spruit, penstock, spillway, trash bin, aqueduct, crane, grate, fire hydrant, sump pump, leachate, riverbed, alley, attic, fountain, pedestrian bridge, manway, vat, lightning arrester, downpipe, subgrade, orchestra pit, carport, ditches, sprinkler system, garage, wires, sluiceway, canal, trunk, bailey bridge, gulch, floodwater, chainlink fence, manholes, receptacle, caisson, fixture, rack, chute, drawer, hatch, joist, panel, bar, batten, bracket, flue, girder, pit, truss, flanged, slotted, screwed, anvil, brass, embossed, forged, knurled, oval, tendinous, bejewelled, bronze, bull, burr, cartilagenous, chamois, chitinous, chromed, circular

manhole cover

hole