Changing the face of Charleston : The unbuilding of the Grace and Pearman Bridges
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Blog: 2005
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Blog: 2006
The story of building the Ravenel Bridge
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Unbuilding Highlights
(Apr 10)
Meeting St. Stories
(Jul 10 2006)
East Bay Stories
(Oct 10 2006)
Drum Island Stories
(Feb 17)
Pearman Bridge Stories
(Apr 3)
Grace Bridge Stories
(Apr 3)
Imposions: Prep and boom
(Mar 27)
Unbuilding Bridge Blog
(July 23 2006)
Unbuilding Challenges
(Mar 13)
Learning Links
(Feb 20)
Unbuilding Stories
(Mar 13)
Video and Sounds
(Feb 28)

November 4, 2005:
Pearman Progress: Picking girders

Starting at the beginning - here is the Ravenel Bridge, the Pearman skeleton - and off to the lower right you can see the red crane towers - the site of girder picking.

Here is the setup at the edge of Drum Island - The left crane does the lifting and placement of each girder spanning two pier caps while the right crane is sort of like a surgical assistant - helping with the fetching and toting. For the last girder, the right 2250 held it in place after the 4th girder had been taken down. This stabilized the 5th (edge) girder and prevented it from falling over.

Here you can see the exposed girders with internal X crossmembers.

I managed to get to the site just as they in the final stage of lowering this edge girder

Here you can see a white edge girder attached to the left crane with transverse supports (half X's) on the right side of the girder

Here you can see the burners at each end of the girder removing the skeletons of the cross members

A closer view of the cross-member xkeletons and burning through one of them

At the other end of the girder, removing the lower part of the X

A few minutes later, I got lucky and caught the final cutting of the upper member -

and here is the last cut as it dropped to the barge floor

Next some cutting from the top

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Attribution: C. Frank Starmer and Sparky Witte from