"culvert" is a correct and usable word in written English.
It is a noun that refers to a pipe or channel that allows water to flow under a road or other transportation, and can be used in contexts related to infrastructure or engineering. For example, you could use it in a sentence like this: "The culvert under the highway ensured that the water was expertly diverted away from the road."
On July 10th, in rural south Armagh, they detonated a large culvert bomb of the type that soldiers in Afghanistan know all too well.
Ol Pejeta had no lions until two found their way under a culvert in 1985 to start a new pride.
Near Ranganijar, a little temple was erected to Ganesha, over the grave of a small calf that died in an irrigation culvert in a tea estate.
Your correspondent this week saw a newly fortified stone dam funnelling all of the water flow into a concrete culvert.
His body apparently bounced into a ditch on the right side of the road, hitting the ragged edge of a concrete culvert (a roadside drainage ditch) just below the right arm.
A bus carrying British Legion members spun off the M4 roadway, landed in a culvert, and burst into flames, apparently after the driver swerved to avoid wooden pallets strewn across the pavement; 12 retirees were killed in the crash.
Vertical gates, counterweighted and lifted by winch or other gearing mounted on an overhead gantry, can operate against water pressure; as the gate leaves the sill, water enters the chamber, supplementing or replacing the culvert supply.
Forensic evidence suggests that Byrd had been attempting to keep his head up, and an autopsy suggested that Byrd was alive for much of the dragging and died only after his head, shoulder, and right arm were severed when his body hit the culvert.
Gaddafi fled into a copse of trees and hid with bodyguards in a concrete culvert under a nearby highway.
It is thought a culvert beneath the Mancunian Way has been eroded by the heavy rain fall, which has cause the road above to be impacted.
The flood caused "sheer devastation", according to residents, as it poured from a culvert and down a side street, ripping huge chunks out of the road surface and destroying the road.
