Sediment Transport and Stream Behavior upon Dam Removal - A Primer

2004 ◽  
Author(s):  
Gary E. Freeman
Keyword(s):  
Sediment Transport ◽  
Dam Removal

Comparing 1-D sediment transport modeling with field observations: Simkins Dam removal case study

2018 ◽  
Vol 17 (2) ◽  
pp. 185-197 ◽  
Author(s):  
Yantao Cui ◽  
Mathias J. Collins ◽  
Mary Andrews ◽  
Graham C. Boardman ◽  
John K. Wooster ◽  
...  
Keyword(s):  
Sediment Transport ◽  
Dam Removal ◽  
Transport Modeling ◽  
Field Observations

scholarly journals Simulation and control of morphological changes due to dam removal in the Sandy River, Oregon, USA

2015 ◽  
Vol 367 ◽  
pp. 207-214
Author(s):  
Y. Ding ◽  
M. S. Altinakar
Keyword(s):  
Sediment Transport ◽  
Transport Model ◽  
Morphological Changes ◽  
Dam Removal ◽  
Roughness Coefficient ◽  
Model Parameters ◽  
Evolution Simulation ◽  
Bed Roughness ◽  
Bed Changes

Abstract. A one-dimensional channel evolution simulation model (CCHE1D) is applied to assess morphological changes in a reach of the Sandy River, Oregon, USA, due to the Marmot Dam removal in 2007. Sediment transport model parameters (e.g. sediment transport capacity, bed roughness coefficient) were calibrated using observed bed changes after the dam removal. The validated model is then applied to assess long-term morphological changes in response to a 10-year hydrograph selected from historical storm water records. The long-term assessment of sedimentation gives a reasonable prediction of morphological changes, expanding erosion in reservoir and growing deposition immediately downstream of the dam site. This prediction result can be used for managing and planning river sedimentation after dam removal. A simulation-based optimization model is also applied to determine the optimal sediment release rates during dam-removal that will minimize the morphological changes in the downstream reaches.

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