A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction of underpass on 22° curve, at Oregon City, Ore, featuring welded transverse beams and ballast trough, built under railroad traffic; methods and costs; handrail and floor; costs of welds.
Welded underpass
Western Construction News
Darby, C. (author)
1940
2 pages
Article (Journal)
English
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UNDERPASS MONITORING SYSTEM, UNDERPASS MONITORING DEVICE, AND UNDERPASS MONITORING METHOD
| European Patent Office | 2016
| British Library Online Contents | 2004
Engineering Index Backfile | 1953