Public Roads;Federal Highway Administrationhttps://doi.org/10.21949/15237431942PDFJournalKellermann, W. F.Loutzenheiser, D. W.King, W. B.Administration, Federal HighwayUnited States. Federal Works Agency. Public Roads Administration{65772}United States. Government Printing Office{1103}United StatesMaterialsOperationsPublic roadsStudiesInfrastructureResearchStatisticsCostsFinancingEnvironmentSoilsFUNDINGHIGHWAY STATISTICSVolume 23, Issue(s) 5These documents are disseminated under the sponsorship of the U.S. Department of Transportation, Federal Highway Administration, in the interest of information exchange.The U.S. Department of Transportation does not endorse any manufacturers, products, or services cited herein and any business or trade n...