CORUH RIVER DEVELOPMENT PLAN

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U. Sezer GENERAL DIRECTORATE OF STATE HYDRAULIC WORKS (DSI), TURKEY 1/17

Ubeyd Sezer Geological Engineer

International Workshop on

Transboundary Water Resources Management Tbilisi, Georgia

8-10 December 2009

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CORUH RIVER BASIN

The Coruh (or Chorokhi in Georgian) River Basin located in the NE part of Turkey, near the boundary between Turkey and Georgia

It rises from the Mescit Mountain Range (highest peak 3255 m) in Turkey and flows into the Black Sea in Batumi, Georgia

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Catchment's Area (approximately)

In Turkey 19 872 km2

In Georgia 2,090 km2

Mean Annual Water Potential 6,824 hm3

Annual Sediment Load 5,8 million m³

Total length of the river 431 km

In Turkey 410 km

In Georgia 21km

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CORUH RIVER BASIN

CLIMATE

• The Climate of the Coruh River Basin is

continental and Black Sea climatic conditions • Climate varies greatly due to;

• high mean elevation of the land (1 132 m) and

• the influence of the mountainous areas running parallel to the coast line

• Mean annual rainfalls varies between 250 mm-2650 mm

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U. Sezer GENERAL DIRECTORATE OF STATE HYDRAULIC WORKS (DSI), TURKEY 5/17 Tort um Çay ı Çoruh Nehri Ba rh al Ç ay ı O ltu_Ç ay_ı Bulan_{ık Ça} yı Berta Çay ı Mey danc ık D eres i Şa vşa_{t D} ere_si Murgul Ç ayı İçka_{le D} eres_i Deviskel Deresi Ka p istr e De re si Sun dura_De resi İ İspispirr Çor uh N ehri Çor uh N ehri 2600mm -2650 mm 685mm-700 mm 250mm-300 mm PRECIPITATION

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CORUH RIVER

HYDROLOGY

Drainage area in Turkey :19 872 km2

Mean annual run-off : 6,824 hm3

Mean, maximum and minimum flows (at Karşıköy

flow gauging station near Muratlı Dam)

Mean : 200 m3_/s

Maximum : 2,431 m3_/s

Minimum : 38 m3_/s

About

About 85%85% of the total annual flowof the total annual flow in Coruh in Coruh RRiveriver concentrated in

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U. Sezer GENERAL DIRECTORATE OF STATE HYDRAULIC WORKS (DSI), TURKEY 7/17 Tort um Çay ı Çoruh Nehri Ba rh al Ç ay ı O ltu_Ç ay_ı Bulan_{ık Ça} yı Berta Çay ı Şa vşa_{t D} ere_si Murgul Ç ayı Deviskel Deresi Ka p istr e De re si İ İspispirr Çor uh N ehri Çor uh N ehri Barhal Çayı Ort. 16 m3_/s

Mean discharges of Coruh River and its tributaries

Tortum Çayı Ort. 15 m3_/s Oltu Çayı Ort. 20 m3/s Bulanık Çayı Ort. 7 m3/s Berta Çayı Ort. 27 m3_/s Deviskel Deresi Ort. 14 m3_/s Đçkale Deresi Ort. 7 m3_/s Murgul Deresi Ort. 12 m3/s Coruh River Mean 200 m3_/sn Barhal Çayı Ort. 16 m3_/s

Kapistre DeresiÇoruh Nehri

Ort. 25 m3_/s Tortum Çayı Ort. 15 m3_/s Oltu Çayı Ort. 20 m3_/s Bulanık Çayı Ort. 7 m3_/s Berta Çayı Ort. 27 m3_/s Deviskel Deresi Ort. 14 m3_/s Murgul Deresi Ort. 12 m3_/s Đçkale Deresi Ort. 7 m3_/s Kapistre Deresi Ort. 15 m3_/s

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CORUH RIVER

WATER QUALITY

• Water quality in the main course and tributaries of the Coruh River measured and analyzed

regularly from existing stations

• According to Turkish Inland Water Quality Standards (derived from Water Pollution Control Regulation) Water Quality of Coruh

River generally Class I and Class II (Unpolluted and Less polluted water body)

• General Pollution Sources:

Households, municipal wastewaters and dump sites

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CORUH RIVER BASIN

ÇORUH BASIN DEVELOPMENT PLAN

• Çoruh River is one of the significant water resources of Turkey, especially in terms of hydropower potential

• The preliminary study for development plan started in 1962 by General Directorate of Electrical Power Resources Survey and Development Administration (EIA),

• The Master plan for hydropower development of Çoruh River was prepared in 1982

• In the master plan and subsequent studies various options were considered for the Coruh River Development Plan and as a result 10 hydropower projects in series along the main river in a cascade style were proposed on the main course of Coruh River

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LALELĐ HEPP 245 GWh 99 MW ĐSPĐR HEPP 327 GWh 54 MW GÜLLÜBAĞ HEPP 285 GWh 84 MW AKSU HEPP 344 GWh 120 MW ARKUN HEPP 788 GWh 222 MW * YUSUFELĐ HEPP 1 705 GWh 540 MW * ARTVĐN HEPP 1 026 GWh 332 MW DERĐNER HEPP 2 118 GWh 670 MW BORÇKA HEPP 1 039 GWh 300 MW MURATLI HEPP 444 GWh 115 MW LONGITUDINAL PROFILE OF

THE CORUH RIVER DEVELOPMENT PLAN

1 420 m *BAĞLIK HEPP 238 GWh 67 MW * BAYRAM HEPP 265 GWh 81 MW 2 130 million m3 167 million m3 1 969 million m3 419 million m3 75 7,3 millon m3 133 millon m3 969 million m3 367 million m3 20 million m3 184 million m3 283 million m3 In operation

Under Investment program Planning Stage

Laleli Dam Max. water level : 1,480 m Muratlı Dam Thalweg level: 60 m

Total volume of reservoirs: 6,72 billion m3

Installed Capacity : 2, 236 MW

(for dams on main course)

Energy generation : 8,320 GWh/year

AYVALI HES 336 GWh 125 MW OLUR HEPP 170 GWh 60 MW ALTIPARMAK HEPP 200 GWh 50 MW Barhal Kolu Oltu Kolu Berta Kolu

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U. Sezer GENERAL DIRECTORATE OF STATE HYDRAULIC WORKS (DSI), TURKEY 11/17 CORUH RIVER DEVELOPMENT PLAN

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Type of dam : Rock fill

Height oh the dam Purpose of the dam

: 49 m Energy Mean annual flow _:

:

6 billion m³ :

Reservoir Volume _{: 75 million m³} Dead Volume _{: 55 million m³}

MURATLI DAM AND HYDROPOWER PLANT

It is located 100 metre upstream from the border

UNDER OPERATION SINCE 2005

Installed Capacity 115 MW

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Installed capacity 300 MW

Total energy 1 039 GWh/annual

Reservoir volume 419 million m3

In operation 2007

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ENVIRONMENTAL IMPACT ASSESSMENT (EIA)

• Environmental Impact Assessment Report (EIA) for Yusufeli Dam was prepared by ENCON in

2006 to fulfil the requirements of international standards,

• The EIA Report Assess in detail:

The effects of the project on the natural and socio-economic environment,

The respective mitigation measures including resettlement action plan

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• Consultation between Turkey and Georgia regarding the hydropower development on Coruh River were started in 1996 with construction preparations for Deriner Dam.

• Since then Turkish and Georgian experts have been conducting joint studies that will serve to identify,

monitor and evaluate changes, which may occur over time in the downstream of Coruh projects on the

Georgian section of the river, including the mouth of the river and the Black Sea Coastline

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CORUH RIVER DEVELOPMENT PLAN

CORUH RIVER BASIN

CORUH RIVER BASIN

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