Description of operations using 50-ton ratchet jack to force 30-in. corrugated iron culvert through base of railroad embankment at saving of $1030 on $21,000 job.
Culvert jacked under railroad
Constructor
Constructor ; 11 , n 9
1929
2 pages
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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Culvert construction in swampy region under railroad tracks while maintaining train service
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