Case Studies for Coastal Protection: Dithmarschen; Eider Estuary; Syltby W. D. Kamp, Ministry for Land and Water, Management, Husum, Germany,
P. Wieland, Ministry for Land and Water, Management, Husum, Germany,
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: Case studies | Estuaries | Seas and oceans | Storm surges | Levees and dikes | Land reclamation | River bank stabilization | Drainage | Water-based recreation | Wadden Sea | North Sea
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