January 17, 2006: Unbuilding the Grace cantilever truss
Watching the unbuilding acrobats beats the circus any day of the week. Here
Sparky captured the continuation of building the Town Creek truss structure -
piece by piece. Earlier we saw Ken Canty's step by step sequencing of the
cutting process. Here is another example. An overview of the Port side
of the Grace cantilever
Supported by the crane, our acrobats burn through the plate
Burning in context - on top, buring through the plate while the crane
stabilizes the girder section
A gentle lift and separation (note lower right gap)
continued cutting through the top girder
more cutting, lifting and separation
final separation
and break away
rotating to lower the segment on the barge
The edge of the port-side cantilever, the Drum Island cantilever
and lowering the section
down to the barge
then laying it over on its side
almost down and
down and sleeping