Experimental Investigation of Flood Management by an Instantaneous Levee Breach

Date

2022-02-01

Author

Al-Hafidh, Ibrahim Adil Ibrahim
Çalamak, Melih
Larocque, Lindsey Ann
Chaudhry, M. Hanif
Imran, Jasim

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Laboratory experiments were conducted to investigate the reduction of flood depth in a channel due to an engineered levee breach. Different combinations of inflow hydrographs, breach openings, and floodplain storage areas were considered. Inflow hydrographs with various peak discharges, hydrograph shapes, and flood durations were generated by a computer-controlled valve. A breach was created instantaneously on the channel sidewall as the flood wave approached the breach location. Regression analyses were conducted to express the reduction of flood depth as a function of the breach width, channel width, distance of the selected location from the breach centerline, hydrograph characteristics, and the area of the floodplain basin. The results show that the engineered levee breach provided an effective reduction of flood depth both upstream and downstream of the breach-more so upstream of the breach-by modifying the flood wave. The breach width and floodplain area are found to play a significant role in depth reduction.

Subject Keywords

Flood control, Levees, Engineered breach, Floodplain storage, Attenuation, NUMERICAL INVESTIGATIONS, MADRID FLOODWAY, MITIGATION, SPILLWAY, DESIGN, FLOWS, FISH

URI

https://hdl.handle.net/11511/95352

Journal

JOURNAL OF HYDRAULIC ENGINEERING

DOI

https://doi.org/10.1061/(asce)hy.1943-7900.0001960

Collections

Department of Civil Engineering, Article

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Citation Formats

I. A. I. Al-Hafidh, M. Çalamak, L. A. Larocque, M. H. Chaudhry, and J. Imran, “Experimental Investigation of Flood Management by an Instantaneous Levee Breach,” JOURNAL OF HYDRAULIC ENGINEERING, vol. 148, no. 2, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/95352.