This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A sewer or drain crossing under a road or embankment.

n. The part of a road or embankment that passes over such a sewer or drain.

n. The channel or conduit for such a sewer or drain.

n. A transverse channel under a road or railway for the draining of water.

n. A transverse drain or waterway of masonry under a road, railroad, canal, etc.; a small bridge.

n. An arched or flat-covered drain of brickwork or masonry carried under a road, railroad, canal, etc., for the passage of water.

False; villainous.

n. a transverse and totally enclosed drain under a road or railway

"Worse, a metal snag in culvert had broken one of the straps."

waste pipe    drain    drainpipe   

drain   

aqueduct    trestle    causeway    flume    girder    tubing    truss    sewer