American Highways, Volumes 44-46

AASHO Committee AASHO Road Test AGGREGATE amended American Association areas asphalt concrete authorized axle load beautification bill bridge Burch McMorran Bureau of Public California Carolina Chairman Chief Engineer City Colorado Commissioner Congress construction cost County DAKOTA Department of Highways Director District Executive Federal Highway Federal Highway Administrator Federal-aid highway fiscal freeway funds Georgia gram Highway Administrator Highway Beautification Act Highway Bldg Highway Commission Highway Department Highway Engineer Highway Officials highway program highway safety highway system Interstate System Iowa June 30 junkyards legislation located maintenance material Meeting ment miles Mississippi Valley Conference motor vehicle National National Press Building needs North Carolina NORTH DAKOTA operation outdoor advertising P. O. Box pavement planning President primary system problems Public Roads R-value right-of-way Secretary of Commerce Senate served Shadburn signs standards subsection Texas tion title 23 traffic transportation United States Code urban Virginia Washington York