[throwaway4good]

What exactly is in it?

If you add up the numbers at the bottom of the article, it is only about 500B. Is the rest already already allocated infrastructure spending?

[mister_tee]

good catch; it's $550B in new spending and $450B of renewing infrastructure programs that were going to expire (or have expired since the bill has dragged on)

I don't know what the $450B is though, all the media focus and interest is on the new shiny stuff.