The vast majority of ARRA were tax subsidies for businesses and Federal subsidies for state governments wallowing in red ink. Nobody is going to argue that the government needs to build more roads, bridges, power lines (preferably buried), repair/replace the water mains, and all that good stuff.
It's easy to say "we're launching a 100 billion dollar initiative to repair national infrastructure" or whatever. Actually doing it effectively is another matter altogether. And I have serious doubts that the Federal bureaucracy and the state legislators are capable of getting money where it's needed the most.