|
The dikes close off secondary valleys and keep the water in the future reservoir. They are similar in design to the dam.
A total of 33 dikes will be built to close off the 603-km2 reservoir at a maximum water level of 283.11 m.
The reservoir's surroundings are relatively low-lying, which explains why such a large number of dikes are needed for closure. In fact, that
is one of the project’s particular
features. Placed end to end, the dikes and dam would stretch more than 14 km.
| Number |
33 |
| Type |
Rockfill: 3 (including one mixed)
Homogenous: 11
Sand and gravel: 5
Freeboard: 12
Closing: 2
The type of dike selected depends on where it will be built, foundation conditions, and availability of
material.
|
| Crest width |
6 to 8 m |
| Total fill volume |
6,350,000 m3 |
|
