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Case Studies for Coastal Protection: Dithmarschen; Eider Estuary; Sylt

by W. D. Kamp, Ministry for Land and Water, Management, Husum, Germany,
P. Wieland, Ministry for Land and Water, Management, Husum, Germany,



Document Type: Proceeding Paper

Part of: Coastlines of the Southern North Sea

Abstract:

Three cases along the Ger North Sea coast, north of the Elbe estuary are discussed. Land reclamation by building dikes started in the Dithmarschen-area almost eight hundred years ago. The construction of the closure dam in the Bay of Dithmarschen provided areas for agriculture and recreation, and resulted in lakes which facilitated the drainage of lowlands and offered possibilities for boating . The first closure of the Eider-river in 1937 led to silting-problems. Thus the next closure by a storm surge barrier (1967/72) had been established near the mouth of the estuary. The length of the dike had been cut down from 60 to 5 km and a better drainage of an intake area of more than 2000 Km² has been guaranteed without disadvantage for shipping. The construction changed the morphodynamics of tidal channels and created morphological reactions in the adjacent Wadden Sea that are still obvious.

Subject Headings: Estuaries | Seas and oceans | Case studies | Water-based recreation | Storm surges | River bank stabilization | Levees and dikes | North Sea | Wadden Sea

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