Interstate Freeway.
Contributors: Oregon State Highway Commission.; Oregon. State Highway Dept. Construction Division. Urban Engineering Section.
Series: Technical report / Oregon State Highway Commission -- no. 58-6.; Technical report (Oregon. State Highway Dept.) -- no. 58-6.
Publisher: Oregon State Highway Commission
Published: 1958
Place of publication: [Salem, Or.]
Language: eng
Number of pages: 41
Subjects: Express highways -- Oregon -- Portland -- Design and construction.; Interstate Highway System -- Oregon -- Portland.; Roads -- Oregon -- Portland -- Design and construction.
Notes: "Compiled by Construction Division, Urban Engineering Section."

"August, 1958."