The Roads He Drew on Grocery Receipts Are the Ones You Drive on Today
He never finished his engineering degree. His professors told him he didn't have the discipline for technical work. But somewhere between a cramped Virginia apartment and a federal planning office that barely knew he existed, a self-taught road thinker named Calvin Pruett quietly sketched out the ideas that would become the backbone of the American Interstate Highway System. The story of how he got there is stranger — and more inspiring — than anything they teach in engineering school.