Proposed improvement program for the primary highway system.

Description

Viewability

Item Link Original Source
Limited (search only)   University of Michigan
Full view   1955 Northwestern University
Full view   1956 University of Illinois at Urbana-Champaign
Full view   1956 Northwestern University
Full view   1957 Northwestern University
Full view   1957-1959 New York Public Library
Full view   1958 University of Illinois at Urbana-Champaign
Full view   1958 Northwestern University
Full view   1959 Northwestern University
Full view   1960 Northwestern University
Full view   1961 Northwestern University
Full view   1962 Northwestern University
Limited (search only)   1963 Northwestern University
Full view   1964 Northwestern University
Full view   1966 Northwestern University
Limited (search only)   1967 University of Illinois at Urbana-Champaign
Full view   1968 Northwestern University
Full view   1969 Northwestern University
Limited (search only)   1970 Northwestern University
Limited (search only)   1971 University of Illinois at Urbana-Champaign
Limited (search only)   1972 University of Illinois at Urbana-Champaign