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Maps of Floodplains

Maps of Floodplains

Floodplain maps provide the basis for floodplain management, regulation, and insurance requirements by identifying flood-prone areas that may threaten life and property. Floodplain maps are reviewed and approved by FEMA. Once approved, the floodplain maps guide flood management programs, including floodplain regulation, safety, preservation, preparation and mitigation. The September 2013 flood mapping displayed on the "2013 Flood Maps" page is not used for regulatory purposes and does not change the FEMA floodplains. This information was captured to document the event and provide insight into areas requiring future analysis and mitigation.

To see if your property is located in a floodplain, select the "Floodplain Map (Interactive)" link.

To have city staff look up your floodplain information, fill out the "Floodplain Information Request (Fax)" form and either fax it to 303-441-4241 or drop it off in-person at the Planning and Development Services Center at 1739 Broadway, third floor.

You can also get a Public Flood Map or a Flood Insurance Rate Map from the "FEMA Map Service Center."

Floodplain Map Changes

Floodplain maps are periodically updated and revised to reflect changing conditions, such as impacts of flooding, new topography, land development, updated mapping studies, and construction of floodplain improvements.

Floodplain map changes can take several forms:

  • Local Map Changes
  • Flood Insurance Rate Maps (FIRMs) or Digital Flood Insurance Rate Maps (DFRIMs)
  • Letters of Map Change (LOMCs)
  • Conditional Letters of Map Amendment (CLOMAs)
    • Conditional Letters of Map Revision (CLOMRs)
    • Conditional Letters of Map Revision based on Fill (CLOMRFs)
    • Letters of Map Amendment (LOMAs)
    • Letters of Map Revision (LOMRs)
    • Letters of Map Revision based on Fill (LOMRFs)

Floodplain Mapping Projects

To view current floodplain mapping studies and letter of map revisions, select from the links under "Floodplain Mapping Projects."

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