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 18
CLASS C, … Excavation 14 ROADWAY. Alinement. Subgrade. Cross-section. Width ofRoadbed. Slopes. ^SPECIFICATIONS FOR THE FORMATION OF THE ROADWAY. RECOMMENDED STANDARD SPECIFICATIONS. IN GENERAL. 1. The center of the roadbed shall conform in alinement to the centerstakes. 2. The grade-line on the profile…
Railroad engineering · Railroads
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