This first paper of a series considers eastern railroads of a first class character, with steel spans, concrete abutments and piers,8o-lb. rail, stone or gravel ballast and permanent construction throughout. (Serial. 1st part) (500 w.) (No. 79102)
Unit costs of railroad building
R R Gaz
1906
Ills.
Aufsatz (Zeitschrift)
Englisch
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