Carrying Capacity of Flood Plains

by Nani G. Bhowmik, (M.ASCE), Principal Sci.; Illinois State Water Survey, P.O. Box 5050, Station A, Champaign, Ill. 61820,
Misganaw Demissie, (A.M.ASCE), Assoc. Professional Sci.; Illinois State Water Survey, P.O. Box 5050, Station A, Champaign, Ill. 61820,


Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 3, Pg. 443-452


Document Type: Journal Paper

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Abstract: The field data of flood flows for several streams were analyzed to determine the distribution of flow in the main channel and in the flood plains. The discharge carrying capacity of flood plains were found to vary from a few percent to more than 80 percent of the total flow. The carrying capacity of flood plains depends upon many factors including the nature of the flood plain and the main channel, and the flood frequency. In general, the carrying capacity of flood plains increases with the return period of the flood. When the return period of the flood is about 40 years or more, the flood plain and the main channel appear to behave as a single unit.

Subject Headings: Flood plains | Load bearing capacity | Flood frequency | Flow distribution | Channel flow | Streamflow | Data analysis | Hydrologic data

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