DEFINITION: A flood is a general and temporary condition of partial or complete inundation of normally dry land areas from :(1) The overflow of inland or tidal waters; or (2) The unusual and rapid accumulation or runoff of surface waters from any source. A flood inundates the floodplain. Most floods fall into three major categories: riverine flooding, coastal flooding, and shallow flooding. 

HISTORY AND SCOPE: Flooding along the Pacific Coast in Del Norte is often associated with the simultaneous occurrence of very high tides, large waves, and storm swells during the winter. Riverine flooding is generally limited to the Smith River, Klamath River, and Elk Creek. Memorable, major past events include the December 1955 Flood Event, the December 1964 Flood Event,   

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