roadbed
Americannoun
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Railroads.
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the bed or foundation structure for the track of a railroad.
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the layer of ballast immediately beneath the ties of a railroad track.
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the material of which a road is composed.
noun
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the material used to make a road
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a layer of ballast that supports the sleepers of a railway track
Etymology
Origin of roadbed
Vocabulary lists containing roadbed
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With crews still working to clear debris from under the freeway, the wooden structure that will support the roadbed around the damaged columns is already being constructed.
From Los Angeles Times • Nov. 16, 2023
She believes raising the roadbed and installing a small wildlife underpass beneath it would significantly reduce the number of newts that die on Chileno Valley Road.
From New York Times • Jan. 24, 2023
Muddy water now courses through where the roadbed had been only a week ago.
From Seattle Times • Jun. 20, 2022
Warming temperatures are accelerating the glacier’s movement downhill, carrying 300 feet of roadbed with it and jeopardizing continued access to some of the park’s key attractions.
From Washington Post • Oct. 15, 2021
In the three decades since construction ended, much of the roadbed has been obliterated by washouts, brush, and beaver ponds, but the bus is still there.
From "Into the Wild" by Jon Krakauer
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
