Hydrodynamic levee-breach and inundation modeling of a levee district along the Middle Mississippi

F. Huthoff*, J. W.F. Remo, N. Pinter

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Computer-based levee breach and inundation simulations are presented for a levee district along the eastern shore of the Middle Mississippi River. The different simulated scenarios include flooding of the district starting from a northern, a western and a southern levee breach. In the study, a hybrid 1D2D flow model was used that combines a 1D model of the Mississippi River with a 2D overland flow model of the levee district. The development of the levee breach is based on an empirical dam break formulation that calculates dimensions of the breach opening from flow characteristics in the breach and the erodibility of the levee. Next, using different floodplain roughness maps a sensitivity analysis is carried out of the simulated flood events, highlighting the impact of floodplain land cover on maximum breach size, flood arrival times and maximum inundation depths. Also, a classification scheme is proposed that characterizes different flood phases. Each flood phase is associated with particular flow conditions and thus requires different types of flood mitigation strategies.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2012
Subtitle of host publicationCrossing Boundaries, Proceedings of the 2012 Congress
PublisherAmerican Society of Civil Engineers
Pages1428-1437
Number of pages10
ISBN (Print)9780784412312
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventWorld Environmental and Water Resources Congress 2012: Crossing Boundaries - Albuquerque, United States
Duration: 20 May 201224 May 2012

Conference

ConferenceWorld Environmental and Water Resources Congress 2012
CountryUnited States
CityAlbuquerque
Period20/05/1224/05/12

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