• Eiffage is building a 460-meter DN 3,200 microtunnel under Le Havre’s Vétillart basin to renew a century-old wastewater siphon.
• The new crossing will carry two DN 1,200 pipelines for Le Havre Seine Métropole, maintaining wastewater flows during network modernization.
• Eiffage Énergie Systèmes is providing pumping, shaft ventilation, automated control systems for deep-shaft works on the operating port site.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Eiffage SA published the original content used to generate this news brief on July 17, 2026, and is solely responsible for the information contained therein.