FEMA flood zone rules in Essex County, MA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Essex County's coastal and riverine flood zones are regulated on two tracks. The Wetlands Protection Act covers land subject to flooding and coastal storm flowage, while the Massachusetts State Building Code enforces FEMA elevation and floodproofing standards in mapped special flood hazard areas.
MGL Chapter 131, Section 40 extends conservation commission jurisdiction to any land subject to tidal action, coastal storm flowage, or flooding, requiring a Notice of Intent for work in these areas. The Massachusetts State Building Code, 780 CMR, adopts FEMA floodplain standards mandating lowest-floor elevation above base flood elevation in coastal Essex towns from Salisbury to Gloucester. Fill in flood storage areas must be compensated.
Building below base flood elevation or filling flood storage without compensation triggers building-code denial, conservation enforcement orders, and loss of flood insurance eligibility under the NFIP.
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See how Essex County's flood zones rules stack up against other locations.
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