Schwingesperrwerk during low tide, View towards the mouth of the SchwingeThe bascule bridge of the barrage is out of order.The bascule bridge of the barrage is out of order.
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 Elbe is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia, then Germany and flowing into the North Sea at Cuxhaven, 110 kilometres northwest of Hamburg. Its total length is 1,094 km (680 mi).
The Thames Barrier is a retractable barrier system built to protect the floodplain of most of Greater London from exceptionally high tides and storm surges moving up from the North Sea. It has been operational since 1982. When needed, it is closed (raised) during high tide; at low tide, it can be opened to restore the river's flow towards the sea. Built about 2 miles east of the Isle of Dogs, its northern bank is in Silvertown in the London Borough of Newham and its southern bank is in the New Charlton area of the Royal Borough of Greenwich.
The River Foss is in North Yorkshire, England. It is a tributary of the River Ouse. It rises in the Foss Crooks Woods near Oulston Reservoir close to the village of Yearsley and runs south through the Vale of York to the Ouse in the centre of York. The name most likely comes from the Latin word Fossa, meaning ditch. It is mentioned in the Domesday Book. The York district was settled by Norwegian and Danish people, so parts of the place names could be old Norse. Referring to the etymological dictionary "Etymologisk ordbog", ISBN 82-905-2016-6 deals with the common Danish and Norwegian languages – roots of words and the original meaning. The old Norse word Fos (waterfall) means impetuous. The River Foss was dammed, and even though the elevation to the River Ouse is small, a waterfall was formed. This may have led to the name Fos which became Foss.
The River Hull is a navigable river in the East Riding of Yorkshire in Northern England. It rises from a series of springs to the west of Driffield, and enters the Humber Estuary at Kingston upon Hull. Following a period when the Archbishops of York charged tolls for its use, it became a free navigation. The upper reaches became part of the Driffield Navigation from 1770, after which they were again subject to tolls, and the section within the city of Hull came under the jurisdiction of the Port of Hull, with the same result.
The Maeslantkering is a storm surge barrier on the Nieuwe Waterweg, in South Holland, Netherlands. It was constructed from 1991 to 1997. As part of the Delta Works the barrier responds to water level predictions calculated by a centralized computer system called BOS. It automatically closes when Rotterdam is threatened by floods.
The Steel Bridge is a through truss, double-deck vertical-lift bridge across the Willamette River in Portland, Oregon, United States, opened in 1912. Its lower deck carries railroad and bicycle/pedestrian traffic, while the upper deck carries road traffic, and light rail (MAX), making the bridge one of the most multimodal in the world. It is the only double-deck bridge with independent lifts in the world and the second oldest vertical-lift bridge in North America, after the nearby Hawthorne Bridge. The bridge links the Rose Quarter and Lloyd District in the east to Old Town Chinatown neighborhood in the west.
The West Gate Bridge is a steel, box girder, cable-stayed bridge in Melbourne, Victoria, Australia, spanning the Yarra River just north of its mouth into Port Phillip. It carries the West Gate Freeway and is a vital link between the Melbourne central business district (CBD) and western suburbs, with the industrial suburbs in the west, and with the city of Geelong 80 kilometres (50 mi) to the south-west. It is part of one of the busiest road corridors in Australia. The high span bridge was built to allow large cargo ships to access the docks in the Yarra River.
Richmond Lock and Footbridge is a lock, rising and falling low-tide barrage integrating controlled sluices and pair of pedestrian bridges on the River Thames in southwest London, England, and is a Grade II* listed structure. It is the furthest downstream of the forty-five Thames locks and the only one owned and operated by the Port of London Authority. It was opened in 1894 and is north-west of the centre of Richmond in a semi-urban part of southwest London. Downstream are Syon Park and Kew Gardens on opposite banks. It connects the promenade at Richmond with the neighbouring district of St. Margarets on the west bank during the day and is closed at night to pedestrians – after 19:30 GMT or after 21:30 when BST is in use. At high tide the sluice gates are raised and partly hidden behind metal arches forming twin footbridges.
The Panama Canal locks are a lock system that lifts ships up 85 feet to the main elevation of the Panama Canal and down again. The original canal had a total of six steps for a ship's passage. The total length of the lock structures, including the approach walls, is over 1.9 miles (3 km). The locks were one of the greatest engineering works ever to be undertaken when they opened in 1914. No other concrete construction of comparable size was undertaken until the Hoover Dam, in the 1930s.
MOSE is a project intended to protect the city of Venice, Italy, and the Venetian Lagoon from flooding.
The Burdekin Bridge spans the Burdekin River between the towns of Ayr to the north and Home Hill to the south, both in the Shire of Burdekin, Queensland, Australia. Located on the Bruce Highway which is part of Highway 1, it is an important link in the national road network. It is a road-rail bridge which provides high flood immunity link between north and south Queensland.
The 1928 Thames flood was a disastrous flood of the River Thames that affected much of riverside London on 7 January 1928, as well as places further downriver. Fourteen people died and thousands were made homeless when floodwaters poured over the top of the Thames Embankment and part of the Chelsea Embankment collapsed. It was the last major flood to affect central London, and, along with the disastrous North Sea flood of 1953, helped lead to the implementation of new flood control measures that culminated in the construction of the Thames Barrier in the 1970s.
The Scharnebeck twin ship lift is a 38-metre (125 ft) boat lift in Scharnebeck, northeast of Lüneburg, in the District of Lüneburg, Lower Saxony, Germany. It is on the Elbe Lateral Canal, which connects the Elbe and the Mittellandkanal, and is one of two constructions on the canal that overcomes the height difference between the canal endpoints, the other being a 23-metre (75 ft) lock further south at Uelzen.
The Fox Point Hurricane Barrier is a 3,000-foot (910 m) long tidal flood barrier spanning the Providence River in Providence, Rhode Island, located 750 feet (230 m) upstream from Fox Point. It was constructed between 1960 and 1966 to protect the low-lying downtown area of the city from damaging storm surge and floods associated with hurricanes and other major storm events.
The Elbe marshes are an extensive region of marsh or polderland along the lower and middle reaches of the River Elbe in northern Germany. It is also referred to as the Lower Elbe Marsch by Dickinson and is region D24 in the BfN's list of the natural regions of Germany. The Germans refer to these polders as Marschen.
The region between the Elbe and Weser rivers forms the Elbe–Weser triangle, also rendered Elbe-Weser Triangle, in northern Germany. It is also colloquially referred to as the Nasses Dreieck or "wet triangle".
Land Hadeln is a historic landscape and former administrative district in Northern Germany with its seat in Otterndorf on the Lower Elbe, the lower reaches of the River Elbe, in the Elbe-Weser Triangle between the estuaries of the Elbe and Weser.
The Schwinge is a river of Lower Saxony, Germany, a left tributary of the Elbe.
The Foss Barrier consists of a retractable floodgate and pumping station owned and managed by the Environment Agency. It straddles the River Foss in York, just above the confluence with the River Ouse. The barrier’s purpose is to prevent water from the Ouse flowing upstream into the Foss, raising water levels and flooding properties along the River Foss. The pumps next to the flood gate move water around the barrier via a side culvert so that it can continue to drain into the Ouse. This prevents water levels on the Foss rising when the barrier is closed. The Ouse’s normal water level at York is approximately 5 metres AOD. When the river level reaches 7.5 metres AOD, the barrier is lowered into the Foss, shutting it off from the Ouse. The electrically driven barrier takes less than five minutes to lower into position. The barrier operates as a ‘turn and lift’ gate so it opens and closes in a similar way to a garage door. The pump-house attached to the barrier maintain the water level in the Foss at around 6.5 metres AOD. When the flood subsides and the level of the Ouse drops back to 6.5 metres, the levels in both rivers are equalised so the barrier opens, and the pumps shut down.
The Stormvloedkering Hollandse IJssel, Hollandse IJsselkering or Algerakering is a storm surge barrier located on the Hollandse IJssel, at the municipal boundary of Capelle aan den IJssel and Krimpen aan den IJssel, east of Rotterdam in The Netherlands. The construction of the works comprised the first project of the Delta Works, undertaken in response to the disastrous effects of the North Sea flood of 1953. Prior to 1954, the spelling Hollandsche was used in the official name.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
