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Schwingesperrwerk

Dams in Lower SaxonyTidal barrages
ItDozent Schwingesperrwerk 1
ItDozent Schwingesperrwerk 1

The Schwingesperrwerk is a man-made movable barrier located on the Schwinge at its confluence with the Elbe near Stade, Germany. It is part of the flood control program for the Lower Elbe tidewater region, from the weir in Geesthacht to the mouth of the Elbe where it flows into the North Sea. Engineers constructed the Schwingesperrwerk after a storm surge caused severe floods in the region in 1962. Built between June 1969 to August 1971, the barrier protects the area surrounding the Schwinge. The construction costs of the barrier amounted to about 7.5 million Euro, in 2013 currency. Seven thousand cubic metres of reinforced concrete, 900 tons of rebar steel and 1,200 tons of steel sheet pilings were used in the construction. The structure is 34 metres wide and equally deep. The shipping bay, which has a clearance width of 16 metres, can be closed with two double gates. Their cill lies at 4.5m below normal (NN), while the top of the gates is 7.6m above normal. The gates close at water levels of 2.4 metres above normal. Spanning the barrier is a double-leaf bascule bridge, more commonly known as a draw bridge, which is out of order. The barrier is managed by the executive agency Stade of the Lower Saxon State Department for Waterway, Coastal and Nature Conservation.

Excerpt from the Wikipedia article Schwingesperrwerk (License: CC BY-SA 3.0, Authors, Images).

Schwingesperrwerk
Butendiek,

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Geographical coordinates (GPS)

Latitude Longitude
N 53.624722222222 ° E 9.5141666666667 °
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Butendiek

Butendiek
21683
Lower Saxony, Germany
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ItDozent Schwingesperrwerk 1
ItDozent Schwingesperrwerk 1
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Schwinge (Elbe)
Schwinge (Elbe)

The Schwinge is a river of Lower Saxony, Germany, a left tributary of the Elbe. The Schwinge is 31.8 kilometres (19.8 mi) long. It rises in the Hohes Moor near Mulsum (a part of Kutenholz) on the Stade Geest in the bifurcation area with the Oste. From there it flows in a largely natural, more than 20-kilometre-long (12 mi) upper reach towards Stade. Because of its very natural river scenery and its biodiversity, the floodplains of the upper reach and the meadows near Stade are protected for landscape conservation. In Stade the ca. 1000-year-old Hanse port (Alter Hansehafen Stade) lies at the Schwinge. Here the upper reach is isolated from tides by a sluice called Salztorschleuse since 1792; the lower reach of the Schwinge, which flows into the lower Elbe north-eastern of Stade at Stadersand, begins. Because of the deepening of the Elbe the average tidal hub of the lower reach rose to 3.3 metres (11 ft), because of the backlog when the sluice gates are closed the fluctuations of the upper reach only amounts to a few decimeters. Despite the embankment the banks of the lower reach are lined with exceptional rare fresh water mudflats. The Schwinge is a 4.6-kilometre-long (2.9 mi) federal waterway from the Elbe to the Salztorschleuse. Since the completion of the Schwingesperrwerk, a flood barrier near the mouth of the river in 1971, all places at the Schwinge are protected better against storm surges. The 16-metre-wide (52 ft) gap is closed with two gates. From the Late Middle Ages until the 1950s the Schwinge was used for the transport of goods with smack-like ships called "Ewer". During dredging of the Schwinge and the Hansehafen countless historic artefacts were found, including famous Ulfberht swords from the 8th to 12th century. Today, however, the leisure and sports boat traffic dominates the shipping on the lower reach, the upper reach beyond Stade isn't navigable.