Through our taxes our govt. pays for infrastructure , has for years and not likely to change anytime soon ....
They do not pay for electrical utilities, which is in much better shape than you stated. Commercial utilities don't just add capacity on a whim. If people started buying electric cars they would add the required capacity. Right now they are meeting capacities by offering discounts on energy efficient products as well as installing more efficient light fixtures on roads. The economy is helping a lot as well. Every abandoned building reduces electrical and gas demand.
IMO we would be better off if the government was not in water and road utilities. Seems every mob boss and governors nephew owns a paving company, but not bridge companies. So roads get paved every other year if they need it or not and they wait till the bridge fails.