Revision of grading rules and classification of timber and lumber for railway uses; simplification of grading rules; advantage of establishing supply yards for standard trestle timbers; standardization and simplification of store stock and disposition of material reaching obsolescence; overhead wooden bridges. (See also - (discussion) p D172; Am. Ry. Eng. Assn. -- Bul vol. 30, no. 31, Feb. 1929 pp. 1145-1228)
Report of committee on wooden bridges and trestles
Ry. Age,
Railway Age ; 86 , n 9D
1929
Aufsatz (Zeitschrift)
Englisch
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