Massachusetts Coast Flood Risk Model
Zoom in to view Massachusetts Coast Flood Risk Model (MC-FRM) scenarios and community facilities and infrastructure.
This interactive map and associated scenarios display extents and depths of flooding produced from the MC-FRM for 2030, 2050, and 2070. The future time horizons account for sea level rise due to continued high emissions of greenhouse gases and storm surges associated with coastal storms (hurricanes and northeasters). See below for the sea level rise projections from a baseline year of 2000.
The Flooding scenarios (e.g., 2030 Flooding) display the full range of annual coastal flood exceedance probabilities (ACFEP). Coastal Flood Exceedance Probabilities shown in the legend display the modeled outputs ranging from 0.1% (0.001, otherwise known as the 1,000-year storm) to 100% (1.0), which corresponds to the one-year storm.
The Flood Depths scenarios (e.g., 2030 Flood Depths – 1%) show the relative depth of water above land during a coastal flooding event with a 1% ACFEP.
To use the interactive map, zoom in to explore the MC-FRM layer. The map legend shows either the ACFEP range (for Flooding maps) or incremental Flood Depths (for Flood Depths maps). Zoom in further to display the community facilities and infrastructure symbols on the map and in the legend. Click a symbol for a pop-up box displaying the facility name and other information.
For additional information on MC-FRM, please see the MC-FRM Modeling Overview and Frequently Asked Questions document (PDF, 2 MB) and the training videos.
MC-FRM ACFEP and Flood Depths were developed by Woods Hole Group for the Commonwealth and finalized in April 2021. These and other MC-FRM layers, such as Wave Action Elevation, are available for download on the MC-FRM page of the Woods Hole Group website.
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