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Lengthening a lock in central France

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9 February 2016 - Projects update and handover - France

Tournaud, a VINCI Construction France subsidiary specialising in river works, is currently lengthening the Rochetaillée-sur-Saône lock (central France), which is located at a key stage of the Rhône-Saône route, on behalf of the French inland waterways authority (Voies Navigables de France). The project involves lengthening the lock chamber in order to allow the passage of convoys up to 190 m in length. As of April 2016, there will in addition be a guidance aid for the barges (a 90 lm-long concrete guide-wall). A special type of structural concrete that self-compacts underwater was developed for the project and used here for the first time in France. The works should be completed in late 2016.