Installation Report: Thick Lift Bituminous Base: Construction and Materials Phase

Report No: 72-R12

Published in 1972

About the report:

During the 1970 construction season, the Basic Construction Company of Newport News, laid a 9-inch bituminous concrete base course in a single lift directly on an unimproved subgrade on a section of Route 31 just southwest of Williamsburg, as specified by the Virginia Department of Highways. This construction technique, which had been used in many other areas but was new in Virginia, was attempted to determine its advantages and disadvantages. The purpose of this report is to summarize only the construction and materials features of the project.

Disclaimer Statement:The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.


  • Charles S. Hughes, P.E., G. W. Maupin, Jr., P.E.

Last updated: February 8, 2024

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