Are all the improvements 'Public Works', say, highway/freeway construction? That was the feeling I got spending many months of the last two years in Austin & Da

Are all the improvements 'Public Works', say, highway/freeway construction? That was the feeling I got spending many months of the last two years in Austin & Dallas. Every freeway was being built, expanded or repaired... my GPS was constantly telling me to exit when nothing but dirt & Jersey barriers existed. Cannot recall the source, but I believe all this work is done w/ Fed stimulus + taxes from all the oil/gas they're pumping & petro refining.