Old Chain of Rocks Bridge explosion doesn’t go as planned

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GRANITE CITY, IL (KTVI) - What was supposed to be the final explosion demolishing the old Chain of Rocks Bridge didn't do all it was supposed to. Now a planned two hour lane closure is still underway, and I-270 will have to be completely shut down again Wednesday.

The trouble was some sort of malfunction in the explosives set to take down the bridge.  In fact at first, no one knew there was anything wrong at all.  The demolition appeared to have gone perfectly.

The blast was right on time at 10:15 am this morning.  It was the second such explosion in two weeks, intended to take down the westbound side of the old Chain of Rocks Bridge.  But when the explosion happened, one section did not go up, causing the bridge to break off improperly.  It leaves two problems for IDOT.  First, there was some damage to the new $104 million dollar bridge that will have to be repaired, officials say it's minimal, but will take a little work.  Second and more pressing is the fact a portion of the bridge wasn't destroyed.

That means i-270 will be closed down for a third time to take care of that section.

What was supposed to be a two hour highway closure has instead led to a situation where one land has been shut down eastbound for most of the day.  Meanwhile, at 9:45 am Wednesday morning, they will close I-270 completely once again for one more explosion.

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