undred foot spans butsome,however,have reached as long as one hundred and fiftyfeet.Derrick cars may be used for these exceptional spansby laying track across the span on falsework and runningthe girder out on the cars and lifting it off and over bya derrick car at each end and lowering it directly… … 5 i ^1 0 0 O 05 O y o0 o I I o n o EL k So k I Hi p VS k ivr k $ § s IS \ k 5 £8* <3
Bridges · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
