The Los Milagros aqueduct was built between 1 B.C. and 3 A.D., it was 830 meters long and 25 meters high, made of brick and concrete it was faced with granite ashlars. It was used to transport water from the Prosperina lake to the Roman colony of Emerita Augusta know today as Merida Spain. Today about 38 arches still stand.
The Los Milagros aqueduct is one of three aqueducts build in the area, and preserved as part of the UNESCO World Heritage Site at Merida.