• Irrevocable offer of dedication: The developer shall provide an irrevocable offer of dedication for drainage purposes to the City for the land designated as a flood area.
  • Private Ownership: The land designated as a 'FLOOD AREA' shall be privately-owned and maintained.
  • Depression or Sump - A depression or sump is an area for which there is no surface route to outlet flows. Furthermore, for the purposes of the definition, a depression or sump also meets one or more of the following conditions:
  • Would have a ponded water surface elevation, during a Capital Flood, within one foot of the finished floor elevation of adjacent habitable structures, if such elevation would result from construction of facilities with less than a Capital Flood capacity. This condition does not apply if there is a surface route for outflow such that the ponded water surface cannot reach the finished floor elevation of adjacent structures during a Capital Flood.
  • In a roadway, would have a ponded water surface elevation higher than the elevation of the public right of way line if facilities with less than a Capital Flood capacity were constructed. This condition applies to flows which reach the roadway upstream of the sump and are conveyed to the sump by the roadway.
  • Has a ponded depth of three feet or greater.
  • An exception is made for fenced or walled detention, retarding, or retention basins.

Floodway - The floodway is the channel of a stream plus any adjacent floodplain areas which must be kept free of encroachment so that the 50-year storm runoff can be carried without substantial increases in flood heights. Such increase in height will not exceed one (1) foot.

The floodway, as defined in this Management Plan, does not correspond to the floodways defined in FEMA maps.

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