Marie Christine Huau will tell in her presentation in the City Floods session about flood management on the example of the French Vallee de la Bievre.

For more than 20 years, the SIAVB (Syndicat Intercommunal pour l’Assainissement de la Vallee de la Bievre) and Veolia develop and update an automated flood management system of the river Bievre, a tributary of the Seine located south of Paris. This solution makes it possible to protect the Upper Valley (200 000 inhabitants, 130km2, 35 km of watercourse) against flooding. In May and June 2016, very heavy rainfall caused extensive flooding in parts of Europe and particularly in the Paris region. In the Upper Bievre Valley, 130 mm fell between May the 22nd and June the 1st, which corresponds to fifth of the averange annual rainfall. While neighboring territories were severely affected by this event, both in human and material terms, the territory of the SIAVB was spared, largely thanks to the envolving technical infrastructure built around a tele-surveillance system, real-time control, a regulation software optimising the use of the storage basins of the river Bievre, and a 24-hour on-call service organisation. Drawing from a permanent data collection infrastructure and processing capabilities, a continuous eveluation of the hydraulic state of the river Bievree and its regulation system is made possible. The evoluation of the river levels is hence monitored in real time to instruct the storage basin regulation according to the hydraulic situation.

Marie Christine HUAU, agronomic engineer, began as an oceanograph on the climate change for the protection of the Great Barrier Reef in Australia. IN 1988, she joined during 17 years the SAUR company within the Bouygues Group, specializing in the environmental water services and buid construction. Her responsibilities include technical study, communication, business development in France and export in eastern european countries, in Poland (Gdańsk, Sopot), Bulgaria, China and South and West Africa. Then, she was Head of the R&D Innovation department for water and sewage services within SAUR Group. From 2003 to 2007, she worked at Ifremer (the french marine research Institute), as the technology transfer and industrial partnership Director. Since then, she works in VEOLIA Group, in charge of business development at Veolia Water, to develop commercial solutions for coastal bathing water quality, water cycle management, preserve resources and ecosystems, and for climate change resilience with solutions to reduce floods and droughts.




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