Ancient roman bridges were in a kind of an arch way. They were used for a lot of things. They could be used for transporting all kinds of things; some were even aqueduct bridges which have an aqueduct inside of their structure that passes water to different places of ancient Rome. There were lots of kinds of bridges, it existed the stone bridges and timber bridges trough others. All of these bridges were used or for aqueducts or for transportation methods. These bridges had a very well-constructed road so it supported heavy things. People could go walking over the bridges if they wanted to cross a river or simply for walking, other people passed in horses or even in carriages. It semicircular shape made it easy for the bridges structure to maintain for hundredths of year, even some bridges built in ancient Rome are still complete and working. Almost all are 5 meters wide, have rustic work and slope slightly. Most of ancient Rome bridges were across rivers or lakes so it helped a lot because instead of getting a boat and cross the river with difficulty you can only stand up and walk over the bridge to get to the other side. Rome architects had a lot of common sense at creating bridges because it has helped a lot to Rome to civilize and it has also helped the world.