Nederland, Flevoland-Overijssel, Ramspol, 01-05-2013; nieuwe Ramspolbrug in de N50 met naast de brug de balgstuw. De vaargeul in het Ramsdiep met strekdam. <br /> Ramspol, inflatable dike, between Ketelmeer and Black Water. The Balgstuw (bellow barrier) is a storm barrier and consists of an inflatable dam or dyke, composed of three bellows. Usually, each bellow rests on the bottom of the water, but now the bellows are inflated  because of maintenance. luchtfoto (toeslag op standard tarieven)<br /> aerial photo (additional fee required)<br /> copyright foto/photo Siebe Swart
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