It’s 1948. The grand scheme of creating an Interstate Highway system in the US is still barely a twinkle in President Dwight Eisenhower’s military eye. Highway construction improved greatly in the late 1950s and early 1960s as the American contractors became more mechanized and therefore efficient at laying roads faster and of better quality.
But how did they build a road back then in 1948?
Thanks to Encyclopaedia Britannica Films, we have a movie of just how a concrete highway was created. The constr
