Manual of recommended practice for railway engineering and maintenance of way (1905)
American Railway Engineering and Maintenance-of-Way Association · Chicago, Ill. : The Association · leaf 22
CLASS C … Excavation *SPECIFICATIONS FOR THE FORMATION OF THE ROADWAY. RECOMMENDED STANDARD SPECIFICATIONS.IN GENERAL. 1. The center of the roadbed shall conform in alinement to thecenter stakes. 2. The grade-line on the. profile denotes subgrade, and this termindicates the top of embankments or the bottom…
Railroad engineering · Railroads
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
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