Page 47 - DinQ 222 July 2021

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tion first made a survey Gated spillways fitted with six
of the Blue Nile river radial gates will be located on the left-
between 1956 to 1964. side of the main dam. Each gate will
have a capacity to discharge 2,450m3/
Two site surveys were s of water at probable maximum
also carried out in Oc- flood occurrence.
tober 2009 and be- The saddle dam supporting the
tween July-August main dam will be 4,800m long and
2010, with the design 45m high. It will have an emergency
being submitted in No- side spillway to discharge water di-
vember 2010. rectly into the Roseires reservoir.

The Government of The two outdoor power sta-
Ethiopia kept the de- tions, with installed capacities of
sign phase of the pro- 3,750MW and 2,250MW, will be lo-
ject secret until one cated on either banks of the river. The
month prior to the lay- power houses include 16 generating
ing of the foundation units of 375MW each.
Ethiopia, equates to
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The dam will also serve Millennium Dam
as a bridge across the Blue Nile, and finally to its
present name.

Construc-
tion of the Renaissance dam across constructed to transmit power from
the Blue Nile the power stations to the grid.

The Grand Renaissance dam Approximately half of construc-
will be a roller-compacted concrete tion work was completed by Decem-
(RCC) gravity-type, comprising of ber 2014. The 700MW first stage of
two power stations, three spillways the dam is scheduled to be opera-
and a saddle dam. tional by 2015.
The reservoir and the dam of-
fer major benefits to Ethiopia, Egypt C C o n t t r r a c t t o r r s s i i n v o l l v e d w i i t t h t t h e e
Contractors involved with the
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The main dam will be 145m
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high and 1,780m long. The reser-
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voir, with a surface area of 1,680m2
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at full supply level (FSL), will be
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formed in the middle section of the

which features a small number of formed in the middle section of the formed in the middle section of the equipment for the hydropower plant
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dam, between the left and right
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bridges and few pedestrian bridges. d d a m , , b e t t w e e n t t h e l l e f f t t a n d r r i i g h t t of the Grand Renaissance Dam.
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banks.
The site of the dam was identi- b b a n k s s .
fied when the US Bureau of Reclama-
DINQ MEGAZINE April 2021 STAY SAFE 47
DINQ magazine July 2021 Stay Safe 47
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