Topuzlu Dam
Topuzlu Dam is a historic dam located in Sarıyer district of Istanbul Province in Turkey.
Topuzlu Dam was built in 1750 by Ottoman Sultan Mahmud I. In 1786, its crest was raised about higher by Abdul Hamid I. The dam is named "Topuzlu" meaning "bulged" due to a bulge-formed central part of the upstream wall side.
The dam is situated just north of Bahçeköy, Sarıyer inside the Bentler Nature Park, which is part of the Belgrad Forest.
Topuzlu Dam impounds Eskibağlar Creek and has a catchment area of. It is a solid gravity dam constructed in masonry. 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.
