After the conquest of 1453 by the Ottomans, Sultan Mehmed II immediately ordered repairs and refurbishments to be made. He focused on installing forty fountains in the valley below the Valens aqueduct bridge, to which the renovated Ottoman system owes its name: the Forty Fountains (Kırkçeşme) Waterway. This refurbished waterway system also incorporated parts of the Hadrian Waterway. The repairs and adjustments of the Ottomans ensured that the higher part of the new Ottoman capital continued to be supplied with fresh water.