Dam of Béni Zid
HE winter rain oods and the summer
annual contribution is 28.50 million cubic meters
| droughts impeded the development of
and the dam’s evaporation is 990 millimeters.
a
strong potential farming and forest
_
_
_
_
;}:Ï:
sector
Béni Zid’S wad1 dam’s Site crosses gneiss massifs to
form a deep gorge with abrupt borders. It is
Considering
the
site’s
water
wealth,
the
therefore a deep bottomed gorge partially covered
construction of the dam had to efciently resolve
in the lower parts of its borders with alluvial
the drinking water and irrigation water supply
dèposits. The dam is sat on solid perfectly resistant
problems for the population of Collo whilst
gneiss rocks.
improving the lands and protecting them from
_
_
_
It Is a zoned earth dam With a clayey core. It IS
ood waters.
_
_
_
52.6m high and 14«9—m long at its r1dge. Almost all
The rst surveys
on this dam were carried out in
materials used for the dyke’s construction coine
1966, but the project was abandoned for the
_
from the quarry area near the site.
»
Guenitra dam located upstream of Guebli Wadi
_
_
.
Thanks to this dam, and from a basm of 58.60
whose mouthp1ece lower course goes through the
_
_
_
_
.
_
square kilometers, there is a dam of
million
Collo plain.
_
_
_
-
cubic meter of water. This piece of work ensures
In 1985, the Béni Zid dam survey resumed in order
water supply from the dam and the evacuation of
to increase the dam’s useful capacity to 20 million
exceptional water oods as well as potential
cubic meters. Thus, in 1988,
the dam’s construction
spilling and emptying.
ll d
ith water in 1993 to
_
_
_
'
,
_
was launched
and was
W
_
_
Thanks to irrigation, lands have been fert1hzed and
store the waters of Béni Zid wad1 tributary of the
_
_
_
_
_
market garden1ng production optnn12ed.
Rekane wad1.
kl
-
'th
Encouraged by these results, a new irrigation
'
a
.
.
.
.
.
The
reaches
square
1 ome}îers
WI
pr03ect for the Lou1da, Sidi Ali Charef, Guergoura,
developed hydrograplnc network. T €
av2rage
Ladjdida and Agna perimeters will boost the
height O-f thls basm ls
meters
an
1 S
development of farm1ng act1v1t1es at a larger scale.
afforestation is 80%._ Rain distribution is regular
but pluviometry increases with altitude.
The city of Collo that suffered from water
_
shortage quenches its thirst thanks to this dam.
The humid season between November and March
generates 80% of precipitations. The average
.
HE winter rain oods and the summer
annual contribution is 28.50 million cubic meters
| droughts impeded the development of
and the dam’s evaporation is 990 millimeters.
a
strong potential farming and forest
_
_
_
_
;}:Ï:
sector
Béni Zid’S wad1 dam’s Site crosses gneiss massifs to
form a deep gorge with abrupt borders. It is
Considering
the
site’s
water
wealth,
the
therefore a deep bottomed gorge partially covered
construction of the dam had to efciently resolve
in the lower parts of its borders with alluvial
the drinking water and irrigation water supply
dèposits. The dam is sat on solid perfectly resistant
problems for the population of Collo whilst
gneiss rocks.
improving the lands and protecting them from
_
_
_
It Is a zoned earth dam With a clayey core. It IS
ood waters.
_
_
_
52.6m high and 14«9—m long at its r1dge. Almost all
The rst surveys
on this dam were carried out in
materials used for the dyke’s construction coine
1966, but the project was abandoned for the
_
from the quarry area near the site.
»
Guenitra dam located upstream of Guebli Wadi
_
_
.
Thanks to this dam, and from a basm of 58.60
whose mouthp1ece lower course goes through the
_
_
_
_
.
_
square kilometers, there is a dam of
million
Collo plain.
_
_
_
-
cubic meter of water. This piece of work ensures
In 1985, the Béni Zid dam survey resumed in order
water supply from the dam and the evacuation of
to increase the dam’s useful capacity to 20 million
exceptional water oods as well as potential
cubic meters. Thus, in 1988,
the dam’s construction
spilling and emptying.
ll d
ith water in 1993 to
_
_
_
'
,
_
was launched
and was
W
_
_
Thanks to irrigation, lands have been fert1hzed and
store the waters of Béni Zid wad1 tributary of the
_
_
_
_
_
market garden1ng production optnn12ed.
Rekane wad1.
kl
-
'th
Encouraged by these results, a new irrigation
'
a
.
.
.
.
.
The
reaches
square
1 ome}îers
WI
pr03ect for the Lou1da, Sidi Ali Charef, Guergoura,
developed hydrograplnc network. T €
av2rage
Ladjdida and Agna perimeters will boost the
height O-f thls basm ls
meters
an
1 S
development of farm1ng act1v1t1es at a larger scale.
afforestation is 80%._ Rain distribution is regular
but pluviometry increases with altitude.
The city of Collo that suffered from water
_
shortage quenches its thirst thanks to this dam.
The humid season between November and March
generates 80% of precipitations. The average
.