单词	subgrade
释义	subgrade noun sub·​grade ˈsəb-ˌgrād  : a surface of earth or rock leveled off to receive a foundation (as of a road) Example Sentences Recent Examples on the Web 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, sun-sentinel.com, 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 Center Ridge Road, west of Jaycox Road: · Crews will continue grading the subgrade, filling in with 304 stone, and installing underdrain. Linda Gandee, cleveland, 27 Apr. 2020 Resurfacing projects seal the surface to prevent rain water from reaching the base course and the subgrade and degrading those materials. Mike Danahey, Elgin Courier-News, 11 June 2018 Word History First Known Use 1893, in the meaning defined above
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