Valide Dam () is a historic dam located in Sarñyer district of Istanbul Province, Turkey.
Valide Dam was built in 1796 by Ottoman Sultan Selim III (reigned 1789âÂÂ1807) to provide water for the donations in Eyüp of his mother Mihrià Âah Sultan ( 1745âÂÂ1805), who was titled Valide sultan during his reign.
The dam is situated north of Bahçeköy, Sarñyer inside the Bentler Nature Park, which is part of the Belgrad Forest.
Valide Dam impounds AyazaÃÂa Creek, a tributary of Acñelma Creek, and has a catchment area of . It is a solid gravity dam constructed in masonry with its crest and the waterside wall covered by marble. Two buttresses in distance at toe are attached to the downstream wall to reinforce the structure. The dam is high from the thalweg and long at crest. The crest is and the base is wide. The dam has a reservoir capacity of .