How were roman aqueducts made?
Engineering The Roman Aqueducts were one of the earliest engineering feats of the first millennium, built and used for a period of 500 years (from the first century A.D. to the Fall of the Roman Empire, generally thought to be 476). The aqueducts were constructed under specific guidelines according to the type of water source, the length of construction and levels of terrain they would sit on, and were built anywhere from 10 miles in length to over 60 miles long. The city of Rome had 11 aqueducts that were used for its water supply during this time. Construction The Roman builders used a mixture of limestone and volcanic dust to construct the aqueducts, while others contained some brick that was used to guard against leaks. To insure the water supply remained untainted by animal carcasses or other disease carrying pathogens, many of the tunnels were constructed underground. A base of stones was used, and then boards were used to build the form. The outsides of the ducts were often plas