24.50.040 Flood Insurance Administration Study and Flood Hazard Maps.

City Code Section

(Amended by Ordinances 173979, 176955, 178741, 182671, 184235 and 191478, effective March 1, 2024.)

  1. The following study and maps in this Section are hereby adopted and declared to be a part of this Chapter.
  2. A.  Flood Insurance Study is the official scientific and engineering report entitled “Flood Insurance Study for City of Portland, Oregon: Multnomah, Clackamas and Washington Counties,” dated November 26, 2010, prepared by the Federal Insurance Administration (FIA) under agency agreement with the Portland District Corps of Engineers.  The latest edition of the report, along with accompanying FIRMs, are on file with the Bureau of Development Services.
  3. B.  Flood Insurance Rate Maps (FIRMs) are the official maps entitled “The Flood Insurance Rate Maps (FIRMs) for City of Portland, Oregon: Multnomah, Clackamas and Washington Counties,” dated either October 19, 2004, or November 26, 2010, whichever is more current, on which the Federal Insurance Administration has delineated the areas of flood hazards along with the 100-year (base flood) and 500-year flood boundaries, the floodway zone boundaries and the 100-year flood elevations.
  4. C.   Other Flood Insurance Studies and Flood Insurance Rate Maps for areas within jurisdictions subject to Chapter 24.50 under separate intergovernmental agreements.
  5. D.  When base flood elevation data has not been provided by the FIA study, the Sewage System Administrator may obtain, review, and reasonably utilize any base flood elevation and floodway data available from a federal, state, or other source.  This data will be utilized only after technical review and approval by the Sewage System Administrator.
  6. E.  The  "Composite February 1996 Flood Inundation Area Mapping” published by the City.  The identified areas are subject to the regulations of this Title.