It represents all of the public and many of the private roadways in Massachusetts. MassDOT Roads: official state-maintained street transportation dataset developed by the Massachusetts Department of Transportation.The data also provides critical information to citizens who live or work in areas that may need to be evacuated as a hurricane approaches. It provides critical information to aid local public officials in evaluating evacuation decisions as a hurricane approaches. Hurricane Evacuation Zones: data layer depicts areas that may be inundated by storm surge or isolated by storm surge waters.Hurricane Inundation Zones: data representing worst-case Hurricane Surge Inundation areas for Category 1 through 4 hurricanes striking the coast of Massachusetts.FEMA Q3 Flood Zones: data layer showing areas for which the newer National Flood Hazard Layer are not available.This dataset represents the areas inundated in a 100-year and 500-year flood.

FEMA’s National Flood Hazard Layer: a compilation of effective Flood Insurance Rate Map (FIRM) databases and any Letters of Map Revision (LOMR) that have been issued.These new maps have possible insurance implications for property. Tidal flooding can also result in the salinization of land leading to loss of shaded areas and green space. New FEMA Flood Insurance Rate Maps are in the process of being created. Rising sea levels may erode shorelines, threaten coastal drinking water supplies with salt-water intrusion, disrupt septic systems and sewage treatment, and displace residents. Furthermore, flooding can temporarily or permanently displace residents. Flooding can result in exposure to contaminated flood water, debris and physical hazards such as downed wires, loss of electricity and/or heat, unsafe food and drinking water, and mold growth. Projected increases in precipitation levels may exceed the capacity of existing infrastructure, such as drainage systems, bridges, culverts, and sewers, to divert water. Rising sea levels which can cause increased tidal flooding and higher storm surges.Increasing storm-related inland and coastal flooding.Increasing precipitation leading to flooding.Some of the most serious climate-related health hazards in Massachusetts are: You may also view the flooding map in a separate tab by clicking here. You will then need to refresh the page to see the flooding map. You can 'Allow third-party cookies' or can disable 'Prevent cross-site tracking' in the privacy tab of the settings page for your browser. The flooding map did not display because this browser blocks third-party cookies or prevents cross-site tracking.

Fema 100 year flood zone map