sub·​grade ˈsəb-ˌgrād How to pronounce subgrade (audio)
: a surface of earth or rock leveled off to receive a foundation (as of a road)

Examples of subgrade in a Sentence

Recent Examples on the Web Engineers call the existing ground where the pavement goes the subgrade. Mansour Solaimanian, The Conversation, 10 May 2024 First, the road builders use rollers to pack the subgrade down. Mansour Solaimanian, The Conversation, 10 May 2024 The project consists of removing and replacing all the pavement and subgrade on West between Emerald and Rickert drives. Michelle Mullins, Chicago Tribune, 2 Aug. 2023 But before the work began, the leak grew into a flood that sent more than 250 million gallons of murky Chicago River water coursing through a turn-of-the-century underground tunnel system and up into the subgrade levels of buildings throughout downtown. Kori Rumore,, 13 Apr. 2022 Work includes removing the existing pavement, remediating unsuitable subgrade, installing an aggregate base and 8-inch of non-reinforced concrete pavement, installing under drains, installing a new catch basin and performing a storm sewer tap. cleveland, 7 Aug. 2022 The project also includes the removal and installation of drainage structures, sidewalks, curbs and gutters, utilities, canal excavation, base, subgrade and new pavement, Keller said. Austen Erblat,, 1 Dec. 2021 The Eagle Lake project included rehabilitation of the existing 6 miles of carriage road surface, subgrade and drainage. From Usa Today Network and Wire Reports, USA TODAY, 4 Nov. 2021 Water flows through the cracks in a street and weaken the gravel base layer and the ground, called the subgrade. Laurinda Joenks, Arkansas Online, 17 Feb. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'subgrade.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of subgrade was in 1893

Dictionary Entries Near subgrade

Cite this Entry

“Subgrade.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2024.

Last Updated: - Updated example sentences
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