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Valide Dam

Belgrad ForestBuildings and structures of the Ottoman EmpireDams completed in the 18th centuryDams in Istanbul ProvinceGravity dams
SarıyerTurkish dam stubs

Valide Dam (Turkish: Valide Bendi) is a historic dam located in Sarıyer district of Istanbul Province, Turkey. Valide Dam was built in 1796 by Ottoman Sultan Selim III (reigned 1789–1807) to provide water for the donations in Eyüp of his mother Mihrişah Sultan (c. 1745–1805), who was titled Valide sultan during his reign.The dam is situated north of Bahçeköy, Sarıyer inside the Bentler Nature Park, which is part of the Belgrad Forest.Valide Dam impounds Ayazağa Creek, a tributary of Acıelma Creek, and has a catchment area of 1.825 km2 (0.705 sq mi). It is a solid gravity dam constructed in masonry with its crest and the waterside wall covered by marble. Two buttresses in 6.30 m (20.7 ft) distance at toe are attached to the downstream wall to reinforce the structure. The dam is 11.25 m (36.9 ft) high from the thalweg and 103.90 m (340.9 ft) long at crest. The crest is 4.72 m (15.5 ft) and the base is 6.30 m (20.7 ft) wide. The dam has a reservoir capacity of 255,000 m3 (9,000,000 cu ft).

Excerpt from the Wikipedia article Valide Dam (License: CC BY-SA 3.0, Authors).

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Latitude Longitude
N 41.191111111111 ° E 28.987777777778 °
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34473 , Bahçeköy Merkez Mahallesi
Turkey
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Neşet Suyu Nature Park
Neşet Suyu Nature Park

Neşet Suyu Nature Park, aka Neşetsuyu Nature Park, (Turkish: Neşet Suyu Tabiat Parkı or Neşetsuyu Tabiat Parkı) is a nature park located in Sarıyer district of Istanbul Province, Turkey.Situated 6 km (3.7 mi) northwest of Bahçeköy neighborhood of Sarıyer and next to the Falih Rıfkı Atay Nature Park, it covers an area of 67.47 ha (166.7 acres). It was established in 2011, and is one of the nine nature parks inside the Belgrad Forest. The protected area is named in honor of Professor (Ottoman Turkish: Müderris) Neşet Bey (1881–1924).Neşet Bey was born in Resen, Ottoman Empire, today in North Macedonia, in 1881. He taught at the (Ottoman Turkish: Orman Mekteb-i âlîsi), today Forestry Faculty of Istanbul University, and served as its rector. He was much respected for his works in forestry by his colleagues and students. A memorial marble inscription erected by the Turkish Directorate General of Forestry on September 21, 1953 is situated inside the nature park. In the southwest of the nature park, the Büyük Bent (literally: Big Dam) is situated on the Kırkçeşme water canal. Remains of a cistern and the mihrab of an open-air prayer place (Turkish: namazgah) are registered protected cultural heritage in the park area.In 2000, the soil in the park area, which is one of the most popular recreation places in Istanbul, was loosened up by earth movers since the soil became hardened throughout the years like concrete endangering the trees. It was found that the growth of the tree roots stopped, bacteria and fungi population increased due to lack of oxygen in the soil. Fallen leaves could not merge with the hardened soil to make it nutrient for the vegetation. The park area was closed to picnics until 2005.