New Dams

Whether for an arch, earth, rock, traditional concrete or roller-compacted concrete (RCC) dam, a water retention project is a technical and environmental project.

For the engineers at ISL, the best technical project combines:  careful dimensioning of the reservoir, optimization of the cost of the dam, maximum security guarantees and taking into consideration the operating restrictions from the design phase.
Well managed, a dam project can have positive impacts on the environment, which more than compensate for the negative ones, such as the allocation of water resources based on careful consideration, minimizing negative impacts, proposing useful compensation measures and the agreement of all parties involved.

For the engineers at ISL Engineering, the design and execution of constructions, in compliance with industry standards, are the basis of their durability, their efficiency, their security and hence, of achieving the objectives for which they were built.


The new High Grand Falls Dam which is approximately 115m high, creating a reservoir of 5.5 billion m3, has multiple objectives: advanced hydroelectricity, maintaining low-water levels, supporting recession agriculture, irrigation and flood protection.


Implementation study and monitoring of the construction of the new Kissir Dam, a construction financed under the economic support and recovery programme (PSRE).


This is an arch dam, 70m high, built at the end of the 1950s. A detailed diagnosis of the abutment led to envisaging strengthening works, by increasing its weight.