No, each state has lots of different colleges and universities in it, private and public ones, not just the "State" ones like UPenn. Pennsylvania is on the East Coast of the US, only an hour and a half from Washington, D.C. but it is very "wide" and LR15s school is way to the west in Pennsylvania, almost to the next state, Ohio, which is next to Indiana which is pretty midwest :-)

There are a lot of kinds of engineers but they don't make stuff generally, they tell other people how to make them, they do all the drawings and stuff, the route the wiring should take for electricity in buildings or how to build a computer, how to make the parts if they are electrical engineers; or where to put the road, sidewalk, sewers, telephone poles, etc. for civil engineers. Nuclear engineers tell people how to build and run nuclear power plants, train engineers, how to run the train :-) Engineering is a LOT of math and physics, knowing if the bridge will support the weight and resist the weather, etc. Here's what happens when engineers don't do their engineering right:

Tacoma Narrows Bridge Collapse

Engineers often "fix" stuff, but don't usually assemble/build it, they know how it all is built so if something breaks, they know how to figure out what that part is and how it broke/fits in with all the other parts. The train engineer doesn't build the train but knows how it runs/all its pieces and how to get it running again if something isn't working right.

I think time in college will get longer and longer for people with specialized knowledge because things are getting so much more technical/complicated and there's more to learn as time passes.