Cool Video: 85 year old bridge blown up!

An 85-year-old bridge is now dust in North Dakota.

First you see it, then you hear it:  the demolition of the Liberty Memorial Bridge in Bismarck.

A 450-foot section of the bridge was blown up Monday to make way for a new span over the Missouri River.

The old bridge was the first one on that river, specifically built for cars but was only expected to last 50 years.