Roman Roads Built Layer by Layer
Roman roads were built to last. Parts of many of them can still be found in Europe today, nearly two thousand years later. How did the builders manage to make something so strong?
First, workers marked a straight line across the land. Roman roads often ran straight so that soldiers and traders could travel fast. Next, crews dug a trench along the line and took out the soft soil. This gave them a firm place to start.
Then they filled the trench in layers. Large stones went at the bottom of it. On top of those came smaller stones, and then gravel mixed with sand. The top layer was often made of flat paving stones, which were fitted closely together. The road was built a little higher in the middle, so rain ran off to the sides, where ditches carried it away.
Stone markers called milestones stood along the roads. Each one told travelers how far they were from a town. Carts, walkers, and messengers all used these roads. People still say that all roads lead to Rome, because so many roads met in that city.