decaying infrastructure Washington Post decaying infrastructure Washington Post costing billions a year in lost economic output costing billions a year in lost economic output desperately needed infrastructure upgrades. WaPo decaying infrastructure sorely underfunded Washington Post Article repairing decaying infrastructure recent estimate sorely underfunded in need of urgent repair decaying infrastructure WashPost pressing infrastructure challenges holes required investment grows exponentially required investment grows exponentially repairing decaying infrastructure decaying infrastructure Washington Post story $129 billion per year sorely underfunded decaying infrastructure pressing infrastructure challenges