Changing the face of Charleston : Watch the unbuilding (demolition) of the Grace and Pearman Bridges
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From the Mt. Pleasant

June 11, 2005: From Mt Pleasant

August 18, 2005:
Sparky's view of the Mt. Pleasant approach

Even an afternoon storm makes a beautiful presentation of Grace and Pearman

Looking west (left) and looking east (right)

And under the Ravenel approaches is where there is a lot of action

August 19, 2005: Unbuilding Coleman Blvd and recycling

This is what remains of the beginning of Coleman Blvd.

and the mixture of concrete and rebar is all for recycling

Here you can see the rebar that has been separated from the concrete. Bill Callanan has provided a great description of the separation process:

The concrete is removed from the rebar using concrete pulverizers and 
"Universal Processing" attachments. These tools pulverize the concrete and it 
falls from the steel. Then the steel can be down sized using a shear 
attachment on the excavator or down sized at the scrap yard. Either way the 
down sizing of the steel prepares it for a smelter to be melted down. 
By removing the concrete from the steel it can be recycled rather than 
disposed of at a land fill. The concrete can be recycled as well once the 
steel has been reused.

Looking up the Pearman and Grace on-ramps from Coleman Blvd.

September 21, 2005: Coleman Blvd Recycle Center

This, for me, is as interesting as watching Testa unpour the concrete roadway. Much of the road is made of reinforced concrete including the side barriers and the roadway. Coleman Blvd has become sort of a recyling center where the concrete is separated from the rebar and the rebar is cut into smaller pieces. Here is one view of the what I call the recycling center.

And here you can see a stack of roadway segments, side barriers and who know what else.

Looking along Coleman Blvd is the loading and unloading area

Jack Foley runs this 365 shear and here is cutting the rebar into short segments.

Here - are Jack's jaws in action - taking a bite (left) and biting (right). The result is short pieces of rebar that can be easily reprocessed

Click to watch Jack at work (10 Mb quicktime video). He is picking up a tangle of long rebar pieces and cutting them into smaller pieces and placing them in a pile of short rebar pieces.

And check out the housekeeping. From the concrete roadway segments, Jack has built a concrete floor as a work surface. With Freyssinet cables shining in the background on the new Ravenel Bridge - it makes a great place to work.

and here are the players in our recycling team - Jack (left) and Michael (inside right) and Richie (outside right) who does the burning, fetching and toting from the bridge worksite (accepting what Michael gives him) to the recycling center where he contributes to Jack's pile of stuff.

Click to view all unbuilding web page segments

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This work is licensed under a Creative Commons License.

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