It was probably built in the Flavian era, between the second half of the first century and the early second, when Emperors Vespasian and Trajan reigned, to carry water from the river to the city.

This impressive piece of engineering, which is still in excellent condition, starts near the Palacio de la Granja 15 km away, with simple arches that lead the water to the tank known as the Big House. Then, a blocks channel transports it to a second tower and once it reaches the square of Díaz Sanz, two monumental rows of arches begin to form.

Its 20,400 stone blocks are not joined by any mass or cement and is kept in place thanks to a perfect balance of forces. The maximum height of the building is achieved in the Plaza del Azoguejo at 28.10 m.