[bio-Urban Design Research Cluster]

[IS]   Infrastructure

[ENV] Environment

Six dams have been built on the tributaries of Lake Ichkeul and we force on the largest one, which is called Sejena Dam. This dam is on the west of Lake Ichkeul.


[TECH] Technological 

Check dams prevent flooding of small areas. Diversion dams divert river water to irrigate crops. Large dams may be built for flood control or electrical generation, or both. Flood control dams are often earth dams--made of huge mounds of clay, sand, gravel, and rock--but often made of concrete. Hydroelectric dams are concrete marvels of engineering.

[SOC] Socio-political

The dams were built for supplying freshwater for northern Tunisian agriculture
and the human population. Pipelines are used for transporting freshwater, which is along the road and extend to Sfax. It have been covered 200km. This resulted in a dramatic reduction of freshwater input into the Ichkeul lagoon and the increase in the seawater volume entering the lagoon via the Tinja channel. In order to control the influx of seawater, a lock was subsequently built on the Tinja channel in 1996.