Have said this before on here, but my brother in law is a lead architect at Populous. He’s worked on numerous stadiums. One of the key issues with both the K and Arrowhead, as much as we like to poke fun at it as an excuse, is the concrete construction.
Stadiums like Wrigley, Fenway, Lambeau, etc, were constructed largely using steel frame. It’s much easier to replace or mend steel I-beam construction than concrete, which naturally degrades over time.
He said rough estimates to truly keep Arrowhead viable for 25-40 more years would rival the cost to build a brand new stadium, and would likely make the stadium not usable for a full season of football.
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