Presplitting rock backslopes
By: prepared by Morrison-Maierle, Inc. ; for Montana State Highway Commission
Contributors: Montana. State Highway Commission
Published: 1967
Language: eng
Number of pages: 16
Subjects: Roads; Blasting; Design and construction
Other titles: Clinton east - west, Beavertail east - west Interstate I 90 - 2 (24) 120, I -90 - 2(24) 128, 190 -2 (4) 132 :
Notes: Caption title.

On letter of transmittal "January 25, 1967"