Potential analysis for synergetic flood retention measures in the river wandse catchment

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Courtesy of IWA Publishing

General Description of the River Wandse Catchment

The Wandse has a total length of 21,5 km with a catchment area of 88 km2. The source is located in Schleswig-Holstein where the upper part of river and catchment (aprox. 4,2 km and 20 km2) are of predominantly rural character. The lower part on Hamburg territory (approx. 17,3 km and 68 km2) is of urban character with a high percentage of sealed surfaces that drain to the Wandse or their tributaries (approximately 63,5 km length). HCU research focuses on the Hamburg territory.

The river Wandse stream network has a total length of approximately 85 km. The major tributaries to the river Wandse on Hamburg territory are the Berner Au, the Stellau and the Rahlau, with the length of all tributaries adding up to 64 km. The main stream has a length of 21 km with a mean gradient of 0,15 %.

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