The formwork is gradually raised by hydraulic jacks.

In numbers, this project represents:

• 1,000 m³ of storage capacity
• 700 m³ of concrete
• Nearly 52 m high
• 9 m in diameter at the base
• 17 m in diameter at the top
• A constant slope of 7.75 cm per meter
• 19 days of lifting

This project, led by Eau 17, will ensure the long-term supply of drinking water to several municipalities on the Arvert Peninsula. It aims to anticipate future challenges, such as the effects of climate change and consumption peaks linked to tourism.

Its design, thanks to the interconnection, will enhance the network’s flexibility and, if necessary, support other areas of the Royan Atlantique metropolitan community.

Project Owner: Eau17 Co-financier: Adour-Garonne Water Agency Project Manager: Cabinet Merlin Civil Engineering: Eiffage Génie Formwork: Gleitbau Salzburg Reinforcement Specialist: Welbond Concrete: EDYCEM Access Tower: Groupe Entrepose

📷 Aerial view by CVS - Patrick Corvisier