Islamic caliphs and governors of Makkah Al-Mukarramah were concerned with dam construction in Makkah Al-Mukarramah, where a number of dams have been constructed since the dawn of Islam. These dams were built to collect rainwater and, in some cases, to prevent floods from Makkah Al-Mukarramah and the holy sites. Sadd Uthal (Uthal Dam) is believed to be one of three dams built by Al-Hajjaj bin Yusuf Al-Thaqafi when he ruled Makkah Al-Mukarramah (73-80 AH) during the reign of the Umayyad Caliph Abd Al-Malik bin Marwan (65-86 AH). Historical sources refer to these three dams as "Al-Sadad," Their construction is attributed to Al-Hajjaj bin Yusuf Al-Thaqafi, with Sad Uthal being the largest of them. This dam was built with large stones and is 40 meters long with a maximum height of 7 meters from its center and a wall thickness of 5.50 meters.