GPS : 41°11'22.1"N 28°59'13.0"E / 41.189472, 28.986944
PHOTOGRAPHS ALBUM
Bentler Nature Park (Turkish: Bentler Tabiat Parkı) is a nature park located in Sarıyer district of Istanbul Province, Turkey. Bentler means "dams" in Turkish language. Situated 1 km (0.62 mi) from Bahçeköy neighborhood of Sarıyer, it covers an area of 16.3 ha (40 acres). It was established in 2011, and is one of the nine nature parks inside the Belgrad Forest. There are fountain, wc, buffet, picnic areas, activity area, autopark facilities.
The protected area is named after the historic dams, the Topuzlu Dam (Topuzlu Bendi, built 1750), Valide Dam (Valide Bendi, built 1796) and New Dam (Yeni Bent or II. Mahmud Bendi, built 1839), which are located north of the park area. There are other structures as the Iskara Bendi and historical fountains from the Ottoman Empire era. Bentler Nature Park has two entrances, the main entrance of Belgrad Forest and Kurtkemeri Gate.
The nature park offers outdoor recreation activities such as hiking, cycling and picnicing, autopark, fountains, buffets, WC, historic buildings for visitors on daily basis. There is playgrounds for children. Admission is charged for visitors and vehicles.
Flora
Main tree species are oak (Quercus petraea) and hornbeam (Carpinus betulus). A 270-year old (2016) plane tree (Platanus) next to the Valide Dam was registered as a monument.
The park is habitat for diverse plant species. As coniferous tree Turkish pine (Pinus brutia), as deciduous trees oriental plane (Platanus orientalis), silver linden (Tilia argentea), European hornbeam (Carpinus betulus), oriental beech (Fagus orientalis), kasnak oak (Quercus vulcanica), Turkey oak (Quercus cerris), Aleppo oak (Quercus infectoria), European ash (Fraxinus excelsior), sweet chestnut (Castanea sativa), alder (Alnus orientalis), blackthorn (Prunus spinosa), medlar (Mespilus germanica), Turkish hazel (Corylus colurna) are found in the park. Shrubs of the nature park are blackberry (Rubus plicatus), butcher's-broom (Ruscus aculeatus) and buttercup (Clematis).
Fauna
The main fauna of the nature park consists of the mammals wild boar (Sus scrofa), fox (Vulpes vulpes), deer (Cervidae), roe deer (Capreolus capreolus), hare (Lepus), chipmunk, the reptile turtle. Observed bird species are hawk, sparrow, finch, magpie.
VALİDE DAM
GPS : 41°11'28.3"N 28°59'16.7"E / 41.191203, 28.987967
Valide Dam (Turkish: Valide Bendi) is a historic dam located in Sarıyer district of Istanbul Province, Turkey. The dam is situated north of Bahçeköy, Sarıyer inside the Bentler Nature Park, which is part of the Belgrad Forest.
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.
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).
YENİ BEND
GPS : 41°11'23.0"N 28°59'09.6"E / 41.189710, 28.985987
The New Dam (Turkish: Yeni Bent), aka Sultan Mahmud II Dam (Turkish: II. Mahmut Bendi), is a historic dam located in Sarıyer district of Istanbul Province. The dam is situated next to Valide Dam north of Bahçeköy, Sarıyer inside the Bentler Nature Park, which is part of the Belgrad Forest. The New Dam was built in 1830 by Ottoman Sultan Mahmud II (reigned 1808–1839).
The New Dam impounds a tributary of Acıelma Creek and has a catchment area of 0.83 km2 (0.32 sq mi). It is a solid gravity dam constructed in masonry having a circular form. The dam is 15.62 m (51.2 ft) high from the thalweg and 101.55 m (333.2 ft) long at crest. The crest is 6.90 m (22.6 ft) and the base is 9.40 m (30.8 ft) wide. The dam has a reservoir capacity of 217,500 m3 (7,680,000 cu ft).
TOPUZLU DAM
GPS : 41°10'58.9"N 28°59'35.8"E / 41.183038, 28.993269
Topuzlu Dam (Turkish: Topuzlu Bent) is a historic dam located in Sarıyer district of Istanbul Province, Turkey. The dam is situated just north of Bahçeköy, Sarıyer inside the Bentler Nature Park, which is part of the Belgrad Forest.
Topuzlu Dam was built in 1750 by Ottoman Sultan Mahmud I (reigned 1730–1754). In 1786, its crest was raised about 3.40 m (11.2 ft) higher by Sultan Abdul Hamid I (reigned 1774–1789). The dam is named "Topuzlu" meaning "bulged" due to a bulge-formed central part of the upstream wall side.
Topuzlu Dam impounds Eskibağlar Creek and has a catchment area of 0.92 km2 (0.36 sq mi). It is a solid gravity dam constructed in masonry. The dam is 14.00 m (45.93 ft) high from the thalweg and 80.65 m (264.6 ft) long at crest. The crest is 4.30 m (14.1 ft) and the base is 7.00 m (22.97 ft) wide. The dam has a reservoir capacity of 160,000 m3 (5,700,000 cu ft).
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