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“I’ve always wondered about these metal tracks are in the sidewalk and street surrounding the Convention Center”

by Prince Of Petworth September 12, 2018 at 1:45 pm 0

“Dear PoPville,

I live near the Convention Center and have always wondered what these metal tracks are in the sidewalk and street surrounding the Convention Center. The run most of the perimeter of the complex and in some areas they run perpendicular across the street. Anyone have any idea?”

It’s been a while since we’ve spoken about these guys – the first time was back in January 2010. Long story short – they are expansion joints. Slighter longer story:

“They are expansion joints. Due to changes in weather, hot and cold, materials expand or contract. You will most commonly see these on bridges. The reason why the convention center has these is because of the sky walks over the streets. The expansion joints allow the entire building to move together and prevents cracking.”

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