Since it was founded in 1918, Sade has developed a multi-facetted expertise.It uses this expertise in the planning and construction of related facilities for the water and wastewater systems that it is working on.

Having their own particular functions and directly linked to facilities which are responsible for transporting and treating effluent, the hydraulic equipment is often placed underground.As a result, it comes under strain from a series of factors from the type of earth it is placed in, aquifers, variable live loads due to traffic movement, pressure, flow rates through to remaining water-tight.

This is why from the design stage onwards it is necessary to take into account the often complex relationship between systems, equipment and facilities in order to ensure the whole system will work properly.

Even leaving aside the fact that you need to have a thorough knowledge of the equipment used, civil engineering of hydraulic facilities is complex.

With an integrated Design Office with ISO 9000 - 2000 certification and specialist operational teams in charge of both the hydraulic aspects and construction projects, Sade is able to solve and optimize all types of engineering problems in the water sector.

Whether it is treatment plants, reservoirs or storage tanks, pumping stations, sewer rain outlets, all these facilities are most often cast in-situ, under the earth's surface and sometimes in the aquifer.

In order to construct these facilities different types of support structures or trench casing needs to be put in place. These need to be adapted to the nature of the soil and the different stages of the works.

Thanks to its long experience, Sade has acquired specialist expertise in areas such as ground engineering, trench casing, sheet piling and installing props and braces, pile foundations ...

Thanks to its vast experience in this sector Sade is a highly skilled organization

The added value of using the company comes to the fore primarily in:

• pilot studies which take into account the hydraulic operations of all of the assets (systems, equipment and facilities) ;
• the design of structures to ensure water-proofing and resistance to internal as well as external pressures ;
• integrating the different kinds of effluent and their variable qualities ;
• design of specific operating techniques (mechanical cutting for example), tailored for facilities either partially or completely underground or cast in situ.

All of these skills can be used for all structures associated with hydraulic facilities such as technical buildings, pumping stations, trenches, retaining walls, warehouse areas, storage areas, etc.