The Hadelner canal lock in Otterndorf is being drained. The facility, which was inaugurated in 2022, will be completely shut down for ten days. This is due to regular maintenance work and a comprehensive main structural inspection. The measure is necessary as the warranty period for the interlocked canal lock expires this year. New lock construction realised in 2019 and 2022 ends. To drain the lock, dam beams are first installed using a mobile crane and then the lock chamber is drained. The lock can lock ships up to a length of 33.5 metres. During the work, the lock will remain closed to all shipping traffic, which will primarily affect recreational boaters.
The Hemelingen lock is also currently closed:
Scope of work on the lock
The lock chamber is thoroughly cleaned and checked for any damage as part of the drainage process, explains Jan Mühlen from the NLWKN's Stade operations centre. The inspection will focus in particular on the components that are otherwise submerged. For safety reasons, the road "Am Kanal" in the immediate vicinity of the lock area will have to be partially closed during the work. Drainage of the Hadelner Canal will be ensured by the Hadelner Deich- und Gewässerverband during the drainage period.
Functions of the building
As a multifunctional structure, the Hadelner canal lock fulfils three main functions: It ensures coastal protection through two large lifting gates at the outer and centre head, which are closed in the event of a storm surge. It also enables the lock function for the Hadelner Canal and serves as a drainage structure for the low-lying inland area. The structure at the entrance to the Elbe-Weser shipping route is one of the most modern water management facilities in the country. The NLWKN regularly partially drains locks and barrages on the coast of Lower Saxony to ensure a high level of protection and the reliable operation of its facilities.
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Jill Grigoleit
Editor Travel
