the world register of dams of icold large french dams · members of the icold. it contains 25,400...

Patrick Le Delliou

CFBR Symposium 31 January 2019-Marseille

The World Register of dams of ICOLD&

Large French Dams

2

Description

CFBR Symposium – 31/01/2019

• The Icold register is a database of dams

• Each dam is defined by 46 fields divided into

• Dam name (+ possible alias)

• Year of commissioning (or "under construction")

• Location (continent, country, region, nearest city)

• Stakeholders (owner, designer, builder)

• Geometric data (height above foundation, length, volume of the structure, altitude)

• Characteristics of Structure + Foundations (Type, sealing, type of foundation...)

• Hydrological characteristics (river, flow and type of spillway)

• Characteristics of the associated reversoir (volume, surface, name...)

• Use of the dam (one or more uses + precision for hydropower, irrigation)

• Coordinates of the middle of the crest

• Unique Code that identifies the dam unequivocally (including binational dams).

• Comments

• Reference for a given dam and basis for statistical comparisons

3

History


• Edited in book form for the first time in 1964, it concerned at this time 48

countries and 9300 dams.

• The first computerized version (officially the 4th version of the register)

is published in 1998 for 80 countries including 20 countries that are not

members of the ICOLD. It contains 25,400 dams

• From 2011, the computerized version is available on the ICOLD website

and is updated at least once a year.

• The version that will be online at the beginning 2019 will give data for

more than 58000 dams in 165 countries (including 100 membes

countries of ICOLD)

4

Access to the Register


• By subscription to ICOLD for a period of 3 years

• On the website of the ICOLD

• History

• General statistics

• Description of the database

• Search engine (for registered individual users)

• Results table with column selections to be included

• Possibility of exporting results

• Currently no export of geometrical coordinates

5

Dams in the database


• All countries of the world (UN definition)

• All large dams according to the definition of the constitution of ICOLD (version 2011):

• H above foundations ≥ 15 m

Or

• 5 m ≥ H > 15 m and Volume of the reservoir ≥ 3 000 000 m3

• Since 2018, the database also includes tailing dams that were (in theory) excluded until then

• The dams in use and the dams under construction are accessible. The Committee In charge of

the register keeps data for broken dams (link to the database of thr Committee of ICOLD on

dam safety), abandoned, dismantled, or project.

6

Several dams and a reservoir


• The database is about dams. So each of the large dams that form one single reservoir (eg. Canada –

CANIAPISCAU: 41 dams for a reservoir of 53,8000 hm3) is the subject of an individual registration

• In order to avoid the risk of counting the same volume of reservoir several times, one of the dams

closing the same reservoir is designated as a main dam, the other being considered as secondary

dams.

Vretenue = 7 500 km3 Vto Each dam = 17 000 km3

7

Evolution of the Register


• 165 countries (including 100 member countries)

• 58500 dams registered

140

145

150

155

160

165

2012 2013 2014 2015 2016 2017 2018 2019

35000

40000

45000

50000

55000

60000

2012 2013 2014 2015 2016 2017 2018 2019

Adding dams

Chinese between

15 and 30 m

8

Dams by country


Adding dams

Chinese between

15 and 30 m

0 5000 10000 15000 20000 25000

China

United States of America

India

Japan

Brazil

Korea (Rep. of)

Canada

South Africa

Spain

Turkey

Iran

France

United Kingdom

Australia

Mexico

Italy

9

Recent Changes


• Georeferencing: in particular to avoid duplicated dams

• Integration of tailing dams

• Data kept for decommissionned, abandoned dams...

• Usage detail (installed hydroelectric power, annual production, irrigated area)

• Detail on the type of dam (under development)

• Measuring the quality of the Register

• Number of dams

• Register filling rate

• Correcting data errors

Ex: Type Dam-weight = PG

• Masonry = > GM

• Traditional concrete = > GCC

• Roller-compacted concrete = > GRCC

• In Hardfill » = > FSHD

10

Georeferencing


• Started in 2012

• Concerns now more than 60% of the Register

• Longitude+Latitude => Estimated altitude

0

5000

10000

15000

20000

25000

30000

35000

40000

2012 2013 2014 2015 2016 2017 2018 2019

11

Georeferencing


12

Other databases


• FAO/AQUASTAT

• Great

• Nacse

• ....

• Wikipedia

0

10000

20000

30000

40000

50000

60000

FAO-AQUASTAT GRanD V1_1 ICOLD-CIGB

Nb Dams

0

5000

10000

15000

20000

25000

30000

35000

40000


Nb locations of dams

662

13

3577

0

500

1000

1500

2000

2500

3000

3500

4000


Nb dams since 2000

13

French Large Dams


• 709 large dams (ICOLD) – 13th country

• Highest: Tignes (180 m)/Jinping I (305 m) – Rogun (U/C 335 m)

• Oldest: Saint Ferréol (1675)

• Most recent: Moreau (Guadeloupe) – 2017

14

Dam Classes (2017) and ICOLD large dams


Note

Htn < Hfond

15

Some statistics: Type of Dam


France World

25%

14%

3%2%

8%10%

38%

PG

VA

MV

CB

BM

ER

TE

13%

5%0%1%0%

15%

66%

PG

VA

MV

CB

BM

ER

TE

16

Some statistics: Main use


France World

4%0%

49%

20%

3%

6%

17%0%1%

C

F

H

I

N

R

S

T

X

14%0%

21%

40%

1%5%

14%0%5%

C

F

H

I

N

R

S

T

X

17

Some statistics: Height


France World

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

N/A 250

0

50

100

150

200

250

N/A 250

18

Some statistics: Year of commissioning


France World

0

20

40

60

80

100

120

19

Large Dams: French references


the world register of dams of icold large french dams · members of the icold. it contains 25,400...

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