Port of Portland replaces repair dock while full service to ships is maintained; problems were to replace pier section by section while remainder was in full use, to do fast and efficient job while working in small space, and to keep many utility lines in service while job was being done.
New wharf, section by section
Pacific Bldr Engr
Pacific Builder and Engineer ; 61 , n 10
1955
3 pages
Aufsatz (Zeitschrift)
Englisch
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