Definition
Public works are infrastructure projects built and owned by government — bridges, highways, dams, parks, courthouses, civic centers, schools, hospitals. They are the visible, durable, photographable output of public spending, and have historically been treated as the most reliable evidence that a government is working.
In The Power Broker "public works" is also the name of a political technique: the systematic translation of fiscal capacity into political capital by building things citizens can see and use. Robert Moses raised this technique to its most extreme expression in American history.
Why it matters
How it works
A public-works program creates a self-reinforcing political coalition. Contractors and consultants who profit from the program become donors and informal lobbyists. Construction-trade unions become reliable supporters. Bondholders develop a financial interest in the program's continued funding. Each new project enlarges the coalition; each politician who cuts the program is attacked from multiple directions at once.
This dynamic explains why public-works programs typically grow even when the original justification for them weakens. The coalition outlives the policy rationale. Reformers who try to redirect the spending often discover that the political cost of dismantling the coalition exceeds the political reward of building a better one — even if the projects in question are objectively low-value. Moses's late career is partly the story of a public-works machine that kept building long after the public it served had begun asking for transit, parks maintenance, and housing instead of more highways.