Please visit to view an interactive map of Cambridge that uses modeling based on climate change assessments. Just because your property isn't officially location in a SFHA on these maps, does not mean it isn't subject to flooding. An active river gauge can help determine the extent of flooding when an extreme event is occurring. Following are links to the gauges that monitor the Charles River and the Alewife Brook in Cambridge. The map is based on the likelihood of an infrequent flood. To learn more about National Flood Insurance Reform, please visit: or visit to learn about the state's Flood Hazard Management Program.Ĭurrent River Elevations: a river gauge monitors water surface elevation of a river, brook, or other source of water. You can use this map if you want to know if a property is in a flood affected area. Residents are encouraged to visit to learn more about the risks of flooding, why flood insurance is needed, how to buy a policy and more. Coastal Flood Maps, otherwise known as Flood Insurance Rate Maps (FIRMs) are used to determine the minimum elevation needed for construction to reduce the. If you have difficulty locating your property please call 61 and we will be able to help locate your property. To determine if your property is located within the SFHA (100-year floodplain) please go to the City of Cambridge Interactive Floodplain Map and click on your property. Familiarize yourself with the legend provided on the map to understand the meaning of these colors and symbols. Residents are encouraged to contact their insurance agent or visit FloodSmart.Gov to learn more about how and where to get a policy. Understand the map legend: FEMA Flood Maps use different colors and symbols to represent various flood risk zones. Lower cost flood insurance from the National Flood Insurance Program (NFIP) is available in low- to moderate-risk areas and you may also qualify for the even lower cost Preferred Risk Policy (PRP). While flood insurance in these areas is optional, maintaining coverage is recommended by FEMA as the flood risk has only been reduced, not removed. The Zone X area is the area that will be inundated by the flood event having a 0.2% chance of being equaled or exceeded in any given year. Most homeowners’ insurance policies do not provide coverage for damage due to flooding.Īreas outside of the SFHA shown on the FIRM as “X” are not required to purchase flood insurance. If you do not have a mortgage, FEMA still recommends that you purchase flood insurance, but you are not obliged to do so. Estimated Base Flood Elevation (BFE) viewer for property owners, community officials and land developers to identify the flood risk (high, moderate, low), expected flood elevation and estimated flood depth near any property or structure within watersheds where Base Level Engineering has been prepared. The SFHA is the area that will be inundated by the flood event having a 1% chance of being equaled or exceeded in any given year, and shown on the FIRM as “AE”. These maps indicate whether properties are in areas of high, moderate or low flood risk. Property owners who have a federally backed mortgage, or plan to refinance with a federally backed lender, are required to purchase flood insurance if their home is shown in a high-risk flood area known as a Special Flood Hazard Area (SFHA) on the DFIRMs. These maps were most recently updated in June of 2010. this information should always consult official FEMA Flood Insurance Rate Maps (FIRMs). Download in CSV, KML, Zip, GeoJSON, GeoTIFF or PNG. Periodically, these maps are updated and changes made to them could effect your flood insurance costs.FEMA FLOOD INSURANCE RATE MAPS EFFECTIVE June 4, 2010Īs part of the Federal Emergency Management Agency’s (FEMA) nationwide Map Modernization Program, the City of Cambridge is required to make Digital Flood Insurance Rate Maps (DFIRMs) available to property owners as a resource in determining if they are required to carry flood insurance on their property. Floodplain areas designated by FEMA on the Flood Insurance Rate Maps (FIRMS) are also available online through FEMAs Map Service Center. Discover, analyze and download data from Floodplain Management Data Initiative. The information on these maps is utilized by insurance companies to determine flood insurance rates. The official map of a community on which FEMA has delineated both the special hazard areas and the risk premium zones applicable to the community.
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