Engineering report for comparison of costs of alternate lines on Interstate Route I-90
Subtitle: East of Superior
By: prepared by Montana State Highway Commission, Interstate Division
Publisher: [Montana State Highway Commission]
Published: 1960
Place of publication: [Helena, Montana]
Language: eng
Number of pages: 14
Subjects: Roads; Design and construction; Cost effectiveness; Express highways
Notes: Cover title.

"November 1, 1960."

Also available online.