Hartelkering | |
---|---|
Coordinates | 51°51′58″N4°18′34″E / 51.86611°N 4.30944°E |
Crosses | Hartelkanaal |
Locale | Spijkenisse, Netherlands |
Owner | Rijkswaterstaat |
Characteristics | |
Material | Concrete, steel |
Longest span | 98 metres (322 ft) |
No. of spans | 2 |
History | |
Construction start | 1991 |
Construction end | 1997 |
Location | |
The Hartelkering (English: Hartel barrier) is a storm surge barrier in Spijkenisse, Netherlands. The barrier is part of the Europoortkering, itself part of the Delta Works project and is designed to close the Hartelkanaal (nl) in case of a storm surge.
The barrier consists of two vertical lift gates, 49.3 metres (162 ft) and 98 metres (322 ft) in length. The gates have a height of 3 metres (9.8 ft) above NAP when closed. The waterlevel at this location can become higher, but in order to prevent flooding of the Europoort-area the gates were designed to allow the water to overtop the gates in extreme situations. The amount of water would be too small to cause any problems in the protected area but it does limit the surgelevel in the unprotected areas.
In the raised position the bottom of the gates is at 14 metres (46 ft) above NAP, slightly higher than the Hartelbrug (nl) next to the barrier. The barrier is equipped with a construction to fend off floating debris, which could damage the gates.
The Hartelkering was constructed at the same time as the Maeslantkering as part of the Europoortkering, a system of levees in addition to the two flood barriers. [1] The barrier was built with the expectation to close once per five to ten years. The decision-making algorithm that sequences storm surge-triggered events in the Maeslantkering is run entirely by computer. [1]
On 8 November 2007 a storm from the north-west hit the Dutch coast. A storm surge, high enough to start the barrier's closing procedure, occurred. The barrier was closed due to a storm surge for the first time since its construction. [2] As the Oosterscheldekering and Maeslantkering storm surge barriers were also closed, the entire Dutch coast was protected against flooding for the first time since 1976. The closing procedure of the hartelkering started at 23.10h. The reopening took place on 9 November at 19.25h. [3]
The Delta Works is a series of construction projects in the southwest of the Netherlands to protect a large area of land around the Rhine–Meuse–Scheldt delta from the sea. Constructed between 1954 and 1997, the works consist of dams, sluices, locks, dykes, levees, and storm surge barriers located in the provinces of South Holland and Zeeland.
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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.
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A flood barrier, surge barrier or storm surge barrier is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier. A surge barrier is almost always part of a larger flood protection system consisting of floodwalls, levees, and other constructions and natural geographical features.
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Cyclone Tilo was a European windstorm which affected northern and western Europe in early November 2007. Combining with the remnants of Hurricane Noel, Tilo's storm surge led to the North Sea flood of 2007, affecting the coastlines of the Netherlands, the United Kingdom, Germany, Denmark, Norway and Belgium, starting on the night of 8–9 November 2007.
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The Grevelingendam is a dam located in the Grevelingen sea inlet between Schouwen-Duiveland and Goeree-Overflakkee in The Netherlands. The Grevelingendam was the fourth structure constructed as part of the Delta Works.
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.
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Pieter Jacobus (P.J.) Wemelsfelder was a prominent Dutch hydraulic engineer who made significant contributions to the field of hydrometry in the Netherlands, and in hydraulic engineering internationally. In addition to his involvement in the design and planning of the Delta Works, he published widely and is notable for the first use of probability theory in the design of flood levels.