REPUBLIC OF TURKEYREPUBLIC OF TURKEYMINISTRY OF ENVIRONMENT AND FORESTRY MINISTRY OF ENVIRONMENT AND FORESTRY

GENERAL DIRECTORATE OF STATE HYDRAULIC WORKSGENERAL DIRECTORATE OF STATE HYDRAULIC WORKS

FLOOD RISK MANAGEMENT OF FLOOD RISK MANAGEMENT OF MARITZA RIVER AND EARLY MARITZA RIVER AND EARLY

WARNING SYSTEMSWARNING SYSTEMS

Yakup DARAMA, Ph.D, P.E.Yakup DARAMA, Ph.D, P.E.Assoc. Prof.Assoc. Prof.

Deputy Head of Investigation & Planning DepartmentDeputy Head of Investigation & Planning Department

Maritza

Tundja

Arda

Ergene

Redriver

WHY EARLY WARNING SYSTEMS ?WHY EARLY WARNING SYSTEMS ?

FIRST HAVE TO LOOK AT THE FLOODING EVENTS IN THE CENTER AND SUBURBS OF EDIRNE

PROVINCE

FLOODINGS OF THE MARITZA R ĐVERFLOODINGS OF THE MARITZA RFLOODINGS OF THE MARITZA R ĐĐVERVER

FEBRUARY 2005 FEBRUARY 2006

EDĐRNE HIGHSCHOOL

EDĐRNE KARAAĞAÇ DISTRICT

DISTRICTS BETWEEN EDĐRNE MARITZA – TUNDJA RIVERS

LOZAN STREET

KARAAĞAÇ ROAD

ĐPSALA-SARICAAL Đ VILLAGE

WINTER LEVEE

MARITZA RIVER

MARĐTZA RIVER

ENEZ ĐPSALA WINTER LEVEE

ĐPSALA WINTER LEVEE

MARITZA RIVER

POMPING STATION

ĐPSALA SEDDES Đ

Max. Observed discharges of Maritza Riverbetween 1982 and 2006.

668

466

2476

438

600

590600

570

320

970

300

360

290

630

910

1025 1030

810

378

205

378

570

873

1190

1791

0

500

1000

1500

2000

2500

300019

82

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

14.0

3.20

06

Max. Measured discharge of Maritza River atthe center of Edirne on 14.03.2006 ( Q=1791 m3/s)

221 34

3

308

469 59

0

762

794

794 85

8

879

821

669

656

581 64

7

682

698

692 74

6

1103

1653

1240

1215

1089

959

909

1791

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

22.0

2.20

06

23.0

2.20

06

24.0

2.20

06

25.0

2.20

06

26.0

2.20

06

27.0

2.20

06

28.0

2.20

06

01.0

3.20

06

02.0

3.20

06

03.0

3.20

06

04.0

3.20

06

05.0

3.20

06

06.0

3.20

06

07.0

3.20

06

08.0

3.20

06

09.0

3.20

06

10.0

3.20

06

11.0

3.20

06

12.0

3.20

06

13.0

3.20

06

14.0

3.20

06

15.0

3.20

06

16.0

3.20

06

17.0

3.20

06

18.0

3.20

06

19.0

3.20

06

20.0

3.20

06

6522

3 14510000

2 5001000

2 306500

1 856100

1 66550

1 47125

1 20510

9895

Maritza River(m³/s)Return Period

Flood discharges with corresponding Return Period of Maritza River.

Measured flood discharges between 1111--20 March 200620 March 2006corresponds to corresponds to 100 year100 year return period. return period.

Measured Maritza River flood discharge on 17.03.200 6 at Ipsala is Q=2 632 m3/s’.

406

412

404 47

4 590

647 72

6

920 10

29 1091

1120

1120

1107

1110

1134

1134

1170

1186 12

62

1457

1828

2409 25

35

2400

1899

1634

2632

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

22.0

2.20

06

23.0

2.20

06

24.0

2.20

06

25.0

2.20

06

26.0

2.20

06

27.0

2.20

06

28.0

2.20

06

01.0

3.20

06

02.0

3.20

06

03.0

3.20

06

04.0

3.20

06

05.0

3.20

06

06.0

3.20

06

07.0

3.20

06

08.0

3.20

06

09.0

3.20

06

10.0

3.20

06

11.0

3.20

06

12.0

3.20

06

13.0

3.20

06

14.0

3.20

06

15.0

3.20

06

16.0

3.20

06

17.0

3.20

06

18.0

3.20

06

19.0

3.20

06

20.0

3.20

06

Max. Observed discharges of the Tundja River between 1982 and 2006

122

71,6

490

128118

64,4

228

64,4

14,3

84,483,6

96

26,4

103

156144

181147

89,5

31,8

133136

51,3

152

215

0

100

200

300

400

500

6001982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

13.03.2006

COST OF THE DAMAGES OF COST OF THE DAMAGES OF FLOOD EVENTSFLOOD EVENTS

Approximate cost of damage caused byEdirne-Maritza Floods occurred between11-20 March 2006 is:

100 MILLION US DOLLARS

CAUSEES OF FLOODS?CAUSEES OF FLOODS?

•• THE MOST IMPORTANT CAUSES OF EDTHE MOST IMPORTANT CAUSES OF ED ĐĐRNE RNE FLOODS OCCURRED 11FLOODS OCCURRED 11--20 MARCH 2006 ARE:20 MARCH 2006 ARE:

In the Maritza, Arda and Tundja River Basins

�Melting of the snow cover

�Thunderstorms

�Uncontrolled release of discharges from the

Bulgarian Dams .

As a results of these

Excessive rise of water levels of the rivers betwee n

10-20 March 2006 cased massive flooding event.

EDĐRNE FLOODS

• 4 GAUGĐNG STATIONS IN BULGARIAN TERRITORY WERE ESTABLISHED AFTER THE FLOOD OF 2005.

• EARLY WARNING OF STESE STATIONS DURING MARCH 2006 FLOODS 15 HOUR BEFORE THE OCCURNCE OF FLOODS, NECESSARY MEASURED WERE TAKEN FOR SAFETY OF LIVES.

Elhova-Suakaca ğı 19 saat

SvilengradSuakacağı-Edirne 15 saat

Ivoylavgrad

Edirne- Đpsala 57 saat

Suakacağı

EDĐRNE

Đpsala

Ivoylavgrag-Edirne 12 saat

Svilengrad-Edirne 15 saat

Elhova

ARDA

MERĐÇ

TUNCA

MERĐÇ

Elhova-Suakaca ğı 19 saat

SvilengradSuakacağı-Edirne 15 saat

Ivoylavgrad

Edirne- Đpsala 57 saat

Suakacağı

EDĐRNE

Đpsala

Ivoylavgrag-Edirne 12 saat

Svilengrad-Edirne 15 saat

Elhova

ARDA

MERĐÇ

TUNCA

MERĐÇ

GS

GS

GS

GS

GS

GS

FLOOD WARNING STATIONSFLOOD WARNING STATIONS

• 1-MARITZA RIVER-PLOVD ĐV• 2-MARĐTZA RĐVER-SVELENGRAD• 3-TUNDJA RIVER-ELHOVA• 4-ARDA R ĐVER -IVOYLOVGRAD• INFORMATION UP TO DATED IN THE WEB

PAGE www.geocities.com/dsiedirnewww.geocities.com/dsiedirne AT 8:00 AND 16:00 HOURS

STATIONS SHOWN IN THE WEB PAGE

ARE THESE STATIONS ADEQUATE FLOOD RISK MANAGEMENT OF THE MARITZA RIVER?

• NOT ADEQUATE• IN ADDITION 2 GAUGING AND WARNING

STATIONS MUST BE ESTAGLISHED ONE IN

REDRIVER AND ONE IN MARITZA RIVER

IN ADDITIONIN ADDITION• 25 RS-GIS BASED GAUGIN AND METEOROLOGIC STATIONS

MUST BE ESTABLISHED URGENTLY AT THE BULGARIAN TERRITORY WITHIN THE FRAMEWORK OF COOPERATION PROJECTS CONTINUING BETWEEN TURKEY AND BULGARIA

MODELSMODELS• USING THESE STATIONS AND FLOOD FORCAST MODELS,

OCCURENCES OF FLOODS COULD BE FORCASTED IN ADVANCE AND INFORM TURKEY SO THAT DAMAGES COULD BE ELIMINATED OR REDUCED CONSIDERABLY.

97%

1%

2%

Bulgaria Greece Türkiye

g

PERCENTAGE OF THE OF DRAINAGE AREAS OF THEMARITZA-ARDA-TUNDJA RIVERS AT THE CENTER OF

EDĐRNE PROVINCE

Bulgaristan 33 970 km2

Türkiye 830 km2

Yunanistan 500 km2

Total 35 300 km2

1- %97 of the Maritza, Tundja and Arda rives drainage basins in Bulgaria where many dams are constructed. These dam s has to be operated such that discharge at the center of Ed irne Provinceshould not exceed 1000 m3/s.

2. On 03.07.2006 a protocol was signed between Bulgarian and Turkish Delegation (consist of technical people fro m DSI and from the Turkish Foreign Ministry) in Sofia as a resu lt of meeting.

3. According to this protocol a multi purpose dam in the on the Tundja river (flood control, energy and irrigatio n) will be constructed by Turkey.

For the reduction of the Magnitudes of Floods Tundja Project

Must be realized by the benefits of both country.

TUNDJA DAM

A cooperation project between Bulgaria and Turkey f unded by EU fund with an amount of 4 000 000 € to increase the capacity of the river bed between the Maritza Bridge in the center o f Edirne and Adakule by removing 29 islands formed in the bed is continuing. This projects should be initiated and realized as s oon as possible.

THANK YOU VERY MUCH

FOR

YOUR ATTENTION