Inventory of safety features on completed 4-lane Interstate route I-15
By: Prepared for the Montana Highway Commission in cooperation with the U.S. Dept. of Transportation, Federal Highway Administration, Bureau of Public Roads under Highway planning and research contract HPR-1(9)
Contributors: Montana. State Highway Commission; United States. Bureau of Public Roads
Published: 1971
Place of publication: Billings, Mont
Language: eng
Number of pages: 218
Notes: Cover title.

At head of title: State of Montana.