Here's a great video shot by KWWL out of Waterloo.  The original bridge is a pretty historical bridge known all over as "The Scary Bridge".  Or at least in my circles.  It was a frequent destination for scenic rides along the Mississippi.

The new bridge is up...so, now it's time to take the other one down!

Thanks to KWWL for such a great shot! Fast forward to 1:50 left in the video for the impressive implosion!

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