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Hurricane Irma

As we continue our recovery and cleanup efforts, please visit the Emergency website for the latest information on openings and closings in Miami-Dade County.

Flood Protection

Because Miami-Dade County is located in a unique geographical area, it is particularly susceptible to flooding from major rain events and storm surge. The County is surrounded by major water bodies such as the Atlantic Ocean, Biscayne Bay, and many rivers, lakes and canals.

Miami-Dade County lies close to sea level and its underground water supply is just below the ground surface. Therefore, major rain events sometimes leave rainwater nowhere to drain, causing occasional flooding in some areas of the County.

For more information on flood protection and related topics at the national level, please visit FEMA.

Elevation Certificates

Flood Elevation Certificates tell you how high your house was built in relation to a flood zone. These certificates are required for all new construction and substantial improvements to a structure.

FEMA Preliminary Maps - Frequently Asked Questions

The Federal Emergency Management Agency (FEMA) Frequently Asked Questions pertaining to their Preliminary Maps and how it affects flood insurance premiums in your area. The FEMA Preliminary Maps and Historical FEMA flood map information is also available upon request through the Flood Zone Hotline at 305-372-6466.

Flood & Drainage Complaints

Form and important phone numbers to submit a flood or drainage complaint.

Flood Insurance

Flood insurance is required for any federally backed mortgage in a special flood hazard area.

Flood Zone Maps

New Flood Zone Maps are now available for viewing. The Federal Emergency Management Agency (FEMA) has completed a major effort to develop detailed digital flood hazard maps that reflect current flood risks for Miami-Dade County. The new Flood Zone Maps replace existing maps using updated and more detailed information. This new preliminary map could become effective as early as March 1, 2022, which is the end of the 90-Day Comment/Appeal Period. Miami-Dade County will adopt the new FIRMs when all comments would be addressed, in order to continue participating in the NFIP, guaranteeing the availability of flood insurance to residents within Unincorporated Miami-Dade County. Historical FEMA flood map information is also available upon request through the Flood Zone Hotline at  305-372-6466.

Property Sale Disclosure

Any purchase of improved real estate in a Special Flood Hazard or Coastal High Hazard Area (also known as Flood Zones) must include a full disclosure to the buyer that the property lies in either of those zones.

Protect Your Property

Things you can do to minimize or eliminate property damage before a flood event occurs.

Stormwater Utility

The Stormwater Utility was created to help solve the problem of polluted stormwater and to improve the drainage capability of areas that are susceptible to flooding. Reduced open spaces create barriers to rainwater, limiting the ability of water to soak into the ground and recharge our aquifer. Special structures need to be built to drain these areas.

Water Control Map and County Flood Criteria

Division of Environmental Resources Management (DERM) has released a proposed Water Control Map update and County Flood Criteria update, which revises the current adopted Water Control and County Flood Criteria maps and proposes new regulatory standards for managing stormwater risks.

If you cannot view PDF PDF files, you can download Acrobat Reader  for free from Adobe Systems, Inc. In order to use PDF files, you must have Acrobat installed on your computer.

Back to Top Page Last Edited: Tue Sep 27, 2022 2:10:15 PM

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