Indeed, four large bath complexes as well as numerous private baths increased the city's water consumption: the Romans constructed an aqueduct fed by the Beirut River whose main source was located 10 km from the city. The aqueduct crossed the river at Qanater Zbaydeh and the water finally reached the place of actual Riad Al Solh Square; there, at the foot of the Serail Hill, it was stored in large cisterns. An intricate network of lead or clay pipes and channels distributed the water to the various pools of the Roman Baths.