Gökçe dam
| Gökçe dam | |||||||||
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| Coordinates | 40 ° 35 '57 " N , 29 ° 12' 7" E | ||||||||
| Data on the structure | |||||||||
| Lock type: | Rockfall dam | ||||||||
| Construction time: | 1980-1989 | ||||||||
| Height above valley floor: | 50 m | ||||||||
| Height above foundation level : | 62 m | ||||||||
| Building volume: | 1 330 000 m³ | ||||||||
| Data on the reservoir | |||||||||
| Water surface | 1.275 km² | ||||||||
| Storage space | 25.5 million m³ | ||||||||
The Gökçe Dam ( Turkish Gökçe Barajı ) is a dam on the Gökçedere, a tributary of the Marmara Sea , in the Yalova Province in northwestern Turkey .
The Gökçe Dam is located 7 km southwest of the coastal and provincial capital Yalova in the hinterland of the Marmara Sea coast . It was built between 1980–1989 to supply Yalova with drinking water . The barrier structure is a 50 m high stone embankment dam . The dam volume is 1,330,000 m³. The reservoir covers an area of 1.275 km² with normal damming. The storage space is 25.5 million m³. The dam supplies 36.6 million m³ of drinking water a year.