Sub-marine pipe

12 February 2010 - New contracts - France

On 7 January, in the presence of Maoulida Soula, chairman of the body responsible for Mayotte’s water supply, the Prefect of Mayotte, Hubert Derache, inaugurated the first kilometre of the undersea pipe that will carry drinking water between Grande-Terre and Petite-Terre. This 2.5 km long structure, being built and installed by Sogea Mayotte (VINCI Construction Filiales Internationales), will have a throughput of 8,000 cu. metres per second. It will be composed of 15 sections, the first of which was launched on 12 December last. This operation required the construction of a ramp, more than 200 m in length, which made it possible to prefabricate the section and then place it in position on the bottom of the lagoon, where it is held down by more than 200 permanent anchors, specially designed to encourage the development of the marine biotope. Contract value: €5m.