Emissaires de rejet des eaux Sainte Suzanne
previous arrow
next arrow

Outfall of Sainte Suzanne

Creation and connection of the marine portion of the Sainte Suzanne treated water outfall to the northeast of the island:
– Realization of a temporary cofferdam in a temporary dike advancing on the ocean of approximately 60m.
– Cofferdeck consisting of 2 walls of PU32 sheet piling of 100 m each. Sheet pile length: 7 m to 8.5 m.
– Earthworks inside the cofferdam up to a height of -5.50 m NGR.
– Driving of 26 HEB280 beams that will serve as anchors for the pipe.
– Installation of 7 x 11.70 m= 81.9m of HDPE pipe diam. 710 mm and a diffuser equipped with an elastomer valve.
– Concreting of the outfall (250 m3 in one go)
– Removal of the sheet piles and dismantling of the temporary dyke.

Driving equipment
La Réunion island, French overseas departments