The shortcomings of “passive” urban river restoration after low-head dam removal, Ottawa River (northwestern Ohio, USA): What the sedimentary record can teach us
Published:January 01, 2013
J.E. Evans, N. Harris, L.D. Webb, 2013. "The shortcomings of “passive” urban river restoration after low-head dam removal, Ottawa River (northwestern Ohio, USA): What the sedimentary record can teach us", The Challenges of Dam Removal and River Restoration, Jerome V. De Graff, James E. Evans
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The concept of “passive” river restoration after dam removal is to allow the river to restore itself, within constraints such as localized bank erosion defense where infrastructure or property boundaries are at risk. This restoration strategy encounters difficulties in an urban environment where virtually the entire stream corridor is spatially constrained, and stream-bank protection is widely required. This raises the question of the meaning of river restoration in urbanized settings. In such cases, the sedimentary record can document paleohydrologic or paleogeomorphic evolution of the river system to better understand long-term response to the removal of the dam. Secor Dam...
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The Challenges of Dam Removal and River Restoration
River restoration is a societal goal in the United States. This collection of 14 research papers focuses on our current understanding of the impacts of removing dams and the role of dam removal in the larger context of river restoration. The chapters are grouped by topic: (1) assessment of existing dams, strategies to determine impounded legacy sediments, and evaluating whether or not to remove the dams; (2) case studies of the hydrologic, sediment, and ecosystem impacts of recent dam removals; (3) assessment of river restoration by modifying flows or removing dams; and (4) the concept of river restoration in the context of historic changes in river systems.