Flooding, channel dynamics and transverse infrastructure: a challenge for Middle Ebro river management

Jesús Horacio, Alfredo Ollero, Iván Noguera and Víctor Fernández-Pasquier

Journal of Maps, 2019, vol. 15, issue 2, 310-319

Abstract: This study documents the impacts of engineering works on flood risk and channel dynamics of the maximum geomorphic flow reach of the Middle Ebro River (Spain) over the last ninety years. The map reveals how the construction of transversal transport lines and their ineffective design and maintenance has contributed to an elevated risk of flooding and channel avulsion at this location. In addition, the development of flood protection structures has restricted the natural dynamics of the river. These modifications have restricted the passage of flood waters, ultimately increasing flood hazards, by changing the area and depth of inundation and extending the flood hydrograph. The map allows for the interpretation of key processes, forecasting of flood hazards, and the evaluation of possible mitigating actions. These findings reconfirm that reducing space for the mobility of a river is not a good management solution and further aggravates the current situation.

Date: 2019
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DOI: 10.1080/17445647.2019.1592719

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