For a dam, whether or not it made particularly good sense, whether or not it decimated a salmon fishery or drowned a gorgeous stretch of wild river, was a bonanza to the constituents of the Congressman in whose district it was located—especially the engineering and construction firms that became largely dependent on the government for work. The whole business was like a pyramid scheme—the many (the taxpayers) were paying to enrich the few—but most members of Congress figured that if they voted for everyone else’s dams, someday they would get a dam, too.
