Changing the face of Charleston : The unbuilding of the Grace and Pearman Bridges
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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)
August 22, 2005: Sparky catches more of the Pearman grider extraction.
Continuing to remove girders up to the superstructure

Here you can see the edge girder on the far side resting on the two sets of caps.

To initiate the extraction, the structural integrity is disrupted just over the pier cap on the right. Here is shown the early moments of the girder's rotation around a pivot point over the left cap.

On the downward fall

After the dust mostly settles you can see the girder resting with the left end between the legs of the piers.

And now its time for a small retreat, preparing to remove the next section

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Attribution: C. Frank Starmer and Sparky Witte from http://oldcooperriverbridge.org