Bridges which have to be able to be opened are always troublesome to road construction companies. The same applies to the bridges over the Krammersluizen on the Philipsdam. Steel Constructions supplied entire step barriers with a hook-pawl system.

Ballast-Nedam has been commissioned by the Directorate General for Public Works and Water Management [Rijkswaterstaat] to redevelop bridges (N257) across the Krammersluizen. The Krammersluizen are part of the Delta Works [Deltawerken] storm surge barriers and the current bridges are therefore quite outdated.

As long ago as in 2013 the Dutch shippers’ organisation (EVO) pointed out that, in the event of economic growth, the Krammersluizen would become a bottleneck for inland shipping. For that reason work has now been started on the locks and the road is being resurfaced at the same time.

Customisation

Steel Constructions supplied customised half step barriers with a so-called hook-pawl system. This system makes it possible to open the bridges without damaging the step barrier in the process.

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