[djoldman]

Ah, that's not how they do it in Chicago.

In Chicago, they concrete form the curb on site.

https://blackhawkpaving.com/wp-content/uploads/2021/03/Concr...

[mschuster91]

Oh good god. I can see that cracking all the way to Germany. Concrete surfaces need stress relief.

[djoldman]

They put expansion gaps at regular intervals.