I thought this was pretty interesting.  We drive on highways all the time.  Many are asphalt surfaces, but there are a lot of concrete roads (many with asphalt on top of them) that provide service today.  We also have a lot of utilities under these roads.  Concrete is a stronger surface, but also hides leaks and breaks, making the job harder to locate and fix repairs.  And it spalls in northern environments where salt is used on the roads.  Utility folks don’t think about roads a lot, but they are integral to our service.  1909 was the first…

https://michpics.wordpress.com/2012/04/20/april-20-1909-the-worlds-first-mile-of-concrete-highway/