How did highway construction in South Carolina compare to the rest of the United States during the Cold War period?

In simple words, The Interstate Highway Act of 1956 was another important piece of cold-war law for South Carolina. While one of the main goals of the act was to ensure that armed forces could travel easily around the country, the Interstate Highway Act had a much larger impact on South Carolina Hence, it is clearly evident that south Carolina was given priority over other states.

the exclusive possession or control of the supply or trade in a commodity or service.