River Rouge: The Moving Line and the Modern World

The River Rouge complex in Dearborn is, by several measures, the largest integrated manufacturing facility ever built. At its peak in the nineteen thirties, it employed over one hundred thousand people on a single site. Raw materials entered at one end: iron ore from Minnesota, coal from Kentucky, sand, limestone, rubber, glass. Finished automobiles came out the other end. Everything in between happened inside the Rouge.

The logic behind River Rouge was Henry Ford's, and it was the logic of vertical integration taken to its absolute limit. Ford did not want to depend on suppliers he did not control. So he owned the ore boats that brought iron to the docks on the River Rouge. He owned the coke ovens. He owned the steel mill. He owned the glass plant. He owned the power plant. The Rouge had its own fire department, its own hospital, its own internal railroad system with about a hundred miles of track. At the scale Ford was operating, the factory was a city.

The moving assembly line itself had been developed at Ford's earlier Highland Park plant, starting in nineteen thirteen. The Rouge extended and perfected the system. The fundamental innovation was not the conveyor belt, which had been used in other industries. It was the realization that if the work moved to the worker rather than the worker to the work, you could eliminate the time lost between tasks, synchronize every station to a common rhythm, and make the entire facility run at the speed of its slowest necessary operation. This is still how nearly everything is made at industrial scale.

Ford's engineers knew the line would change the nature of industrial labor. Workers would need less skill, not more. Each person would do fewer things, not more. The speed of the line was set by management, not by the worker. These were not incidental features of the system. They were design choices, and they shaped every labor dispute at Ford for the next four decades.