Dam of Mexa
EXA dam is located in the wilaya
The ood water discharge is of the laminar type
M (province) of El—Taref, at 7.5 km from
and is located at the left—hand side shore. lt
the wilaya’s administrative center.
includes 10 6—meter wide control valves each, with
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a debit of 1800 cubic meters
er second.
It is an earth-dyke type dam With a
P
discharge and a tower on the left—hand side shore
The dam’s site is located in a wood area, strongly
of the wadi. Its accumulation capacity is %? million
populated with vegetal and animal species not far
cubic meters on a surface of 518 268 hectares for a
from Tarf natural park.
basin of 650 square kilometers.
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Mexa was meant to be a dam ve tunes more
This dam is destined to supply the cities of
important but the proximity to the Tunisian
Annaba, El—Taref and Boutheldja in drinking
borders reduced its lake. Contributions are very
water.
considerable
in
the
region of El—Tarf. A
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complementary damis being built at 4« kilometers
Mexa dam’s tower, bu11t on the left—hand s1de shore
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upstream to the s1te to recover the ows that Mexa
1s d1v1ded up
into many levels: a tower access With
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cannot take in charge. -
a
travelmg crane, a cofferdam slu1ceway access
well, a set of brimbale. The cofferdam represents
The Bougous, twin brother of Mexa, will therefore
an indicator of the retained level.
play a supporting role in a very humid area with a
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unique vegetal cover in Algeria.
From the dyke’s foot, the height 1s 40 meters and
the width is 4.«02 meters.
.
Mexa dam dyke, 402—meter long, is made up of
alluvia
with
a
rip—rap later upstream
and
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downstream.
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