Changing the face of Charleston : The unbuilding of the Grace and Pearman Bridges
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(Apr 10)
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(Jul 10 2006)
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(Feb 17)
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(Mar 27)
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(Feb 28)

January 26, 2006:
Blasting the base of T-4, Iron worker acrobats and gone is the Grace ramp

Today was a 3 event day - Evaporating the Grace ramp at America St., more ironworker acrobatics and Brett loads and blasts the base of T-4.

The worksite around T-4

A closer view. The black regions are rubber tire blankets laying over the base of T-4

Here comes Sharon and Phillip - to get the remote receiver

Today was Brett's day. For the past year of so, he has worked from the bottom of the ladder and moved his way up in his father's organization. Mickey challenged Brett with today's challenge - loading and sequencing amd then pushing the button. So this has been a family affair - Mickey and Ken laid out the strategy, Phillip drilled the holes and Brett loaded and sequenced the explosives. The end result pleased everyone.

Some last minute instruction from Mickey

Since this was Brett's day, I thought it would be fun to try to catch the blast and Brett together. Here is Brett just before he starts the blast

T = .4 sec A small vertical column of smoke appears next to the Grace leg (to the left)

T = .8 sec - here the smoke region appears to be moving to the right

T = 1.2 sec - and by now, there is enough data to suggest that the ignition sequence is propagating from left to right.

T = 1.6 sec

T = 2.0 sec

T = 2.4 sec

T = 3.6 sec

T = 5.6 sec

T = 9.2 sec - its all over

Then after the smoke clears, Leon comes in to start cleaning up

and Ken comes to inspect the results

At the same time, our ironworkers are burning away on the Pearman truss

A closer view

and maybe this is Nugget waving?

The iron worker setup

and elevator

After the event, I looked around and though - hmmmm, probably our ironworker friends have been watching

Then back to work - burning

On my way home, Bob McCabe was directing the finishing touches on clearing the Grace off ramp - with Ryan playing on the grapple

another view - and the wall from yesterday is history today

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Attribution: C. Frank Starmer and Sparky Witte from