August 26 1958
George W. Barton and Associates
August 26 1958
George W. Barton and Associates
January 1970
Wisconsin Division of Highways
1961
Indiana State Highway Commission, Division of Planning
1970 – 1976
South Dakota Department of Transportation, Office of System Analysis
1975 – 1977
North Dakota State Highway Department, Transportation Services Division
1976
State of Montana Department of Highways, Planning and Research Bureau
1950s
1958 – 1959
1958 – 1959
1958 – 1959