Flood Hazard Areas
Floodplains are areas of land susceptible to inundation by floodwaters. Special Flood Hazard Areas are floodplains that adjoin a river, stream, or other inland or coastal waterway that are inundated by water during the 1% annual chance flood (100-year flood). The 1% annual chance flood is a flood event having a 1% chance of being equaled or exceeded in magnitude in any given year. Special Flood Hazard Areas are considered a Wetland Resource Area under the Massachusetts Wetlands Protection Act and are depicted on Federal Emergency Management (FEMA) Flood Insurance Rate Maps (FIRM) as Zones A, AE, AH, AO, AR, A99, V and VE.
Contact the Floodplain Manager for More Information
Preliminary Flood Insurance Rate Maps for City of Boston - Appeal Resolution, July 2015
On July 9, 2015, FEMA issued a letter to the City of Boston stating that they have resolved the City's appeal of the 2013 Preliminary Flood Insurance Rate Maps (FIRMs) based upon the data and mapping information provided by the City of Boston. The letter indicates that the data and mapping provided with the appeal have been incorporated into the Revised Preliminary FIRMs and the Flood Insurance Study (FIS) for the City of Boston. The Revised Preliminary FIRMs are available on FEMA's website. To find out if your property will be affected by remapping, first find your panel number, and then search the Preliminary Flood Hazard Map page for your panel number.
Find the Revised Preliminary FIRM for Your Property »
General Flood Information
View everything from educational information about flooding to tips on making an emergency kit.
Flood Information from Ready.Gov
Find resources on understanding flood maps, defining flood risks, the cost of flooding, and more from the National Flood Insurance Program.
Learn how to prepare for storms with information provided by Sea Grant.
MA Homeowners Handbook for Coastal Hazard Prep
Federal Emergency Management Agency (FEMA)
FEMA provides basic flood insurance information for claims adjusters, property owners, insurance professionals, lenders, both state and local officials, and surveyors.
FEMA Flood Information Resources
Search for any property by address on FEMA's Flood Map to find the official flood map of your property.
Find a Flood Map for Your Property
Retrofitting means making changes to an existing building to protect it from flooding or other hazards such as high winds and earthquakes. Follow FEMA's guide to protect your home or building from these hazards.
Homeowner's Guide to Retrofitting
Office of Coastal Zone Management Stormsmart Coasts
The StormSmart Coasts program is designed to:
Assist communities and people working and living on the coast by providing information, strategies, and tools to help address challenges arising from erosion, flooding, storms, sea level rise, and other climate change impacts;
And promote effective management of coastal landforms, such as beaches and dunes.
Their publications include materials on coastal erosion, flooding, storms, and sea level rise, as well as other publications on coastal geology.
StormSmart Coasts Publications