Renovation of the Limmel flood barrier with automatic closure to protect hinterland

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Limmel flood barrier

Commissioned by the Department of Public Works and Water Management, Agidens Infra Automation, together with Besix, renovated the Limmel flood barrier near Maastricht in the Netherlands. That flood barrier is the gateway to the Maas route, an important connection between the Netherlands and the industrial areas in Belgium, Germany, and France, and protects the hinterland against high water from the river Meuse. After more than 80 years of service, the engineering structures were considerably outdated and required replacement. After completion, Agidens will be responsible for the maintenance and upkeep of performance for 3 + 30 years.

The renovation of the Limmel flood barrier was a first for the Department of Public Works and Water Management, the executive agency of The Ministry of Infrastructure and the Environment in the Netherlands. It was the first flood barrier in the world to be built and operated via a Design, Build, Finance & Maintenance contract. The new flood barrier protects the hinterland against high water, and since its completion, larger inland vessels can now also pass through the Limmel flood barrier. This is part of the Maas route project to provide an alternative for road freight traffic between Antwerp, Rotterdam and Liège, as well as other places.

Hydraulic lifting and lowering mechanism

The Department of Public Works and Water Management gave the parties involved the opportunity to explore innovative solutions. To prevent flood barrier failures, the main risk and most important requirement of this project, Agidens designed an ingenious electric and hydraulic lifting and lowering mechanism with a visualization system (approximately 5000 data points). In that way, the flood barrier always and lower evenly following the laws of nature. It is a robust and innovative mechanism with proven technology components. The as few movable parts as possible were used, resulting in less maintenance.

Agidens also took care of all the automation for remote operation and steering. For the next 30 years, Agidens Infra Automation will also be responsible for the maintenance and upkeep of performance.