It’s because infrastructure spending, especially repairs or preventative maintenance, isn’t a vote getter. It’s not flashy, so it doesn’t get the focus it should.
By the time our representatives have funded their pet projects, and their donors projects, they aren’t going to award a large chunk that’s needed for these repairs.
That is… until there is a catastrophe close to home. Unfortunately that’s when we’ll likely see action. But it’ll be myopic, and focus only on one specific thing, leaving another unattended.