With reference to engineering, I have noticed in other states that the joints between the concrete sections of pavement are reinforced by horizontal rods that span the gap -- you can see the different texture of the pavement at those joints. I am guessing that this technique keeps the adjacent sections from flexing up and down as heavy trucks pass over the joints.
If I am right about this, that sounds like a cost-effective way to minimize wear and tear on the roadway.
Does anyone here have more info on that technique? I looked and was unable to find much about it.