A Study of a Flood Control Levee Swamp System

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by Edmond D. H. Cheng, Univ of Hawaii at Manoa, Honolulu, United States,

Document Type: Proceeding Paper

Part of: Irrigation and Drainage:

Abstract: In an attempt to reconstruct the events of the more than 100-year 1987 New Year's Eve storm that occurred on Oahu, Hawaii, an analysis of a complicated overland flow phenomenon and hydraulic routing process, under dynamic tidal conditions, were applied to a levee swamp system. Since only very fragmentary rainfall and runoff data of the extreme event were available, the inflow hydrographs for the Kawainui Swamp were successfully simulated by means of the Nash-Muskingum routing of rainfall excess. The results of the study indicated that the levee system, which was designed by the U.S. Army Corps of Engineers in 1956 and constructed in 1960, may be erroneously designed.

Subject Headings: Control systems | Levees and dikes | Wetlands (fresh water) | Floods | Flood routing | Hydraulic design | Tides | Rainfall-runoff relationships | Overland flow | North America | Hawaii | United States

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