This is infrastructure is poor in some places, some areas have failing infrastructure (such as flint MI)
These types of projects require an elected official to see beyond their term limits. Something few of them can do.
i.e. see beyond the need to focus on short-term sugar highs for voters, to get re-elected every 2/4/6 years.
Politicians think short-term for the same reason public CEOs so often do: near-term placating to retain their position.