Know Your Flood Hazard

Land areas that are at a high risk for flooding are defined as Special Flood Hazard Areas (SFHA), or floodplains. If you are located in the SFHA, The Federal Emergency Management Agency (FEMA) predicts that you are subject to flooding during a 100-year rainfall event. The SFHA includes A and V Zones, which are most common in Quincy. To find your property’s designation go to one of the following links:

FEMA flood maps (FIRMs) may also be viewed at the Thomas Crane Public Library or at the Engineering Department at 55 Sea Street.

The FIRMs depict two coastal flood hazard zones:

  • Zone VE, where the flood elevation includes wave heights equal to or greater than 3 feet; and:
  • Zone AE, where the flood elevation includes wave heights less than 3 feet

Recently published FIRMs also include a line showing the Limit of Moderate Wave Action (LiMWA) which is the inland limit of the area expected to receive 1.5-foot or greater breaking waves during a 1-percent-annual-chance flood event. More information on each flood zone designation and the LiMWA can be found at the links below.

If your property is in a floodplain, the City’s Engineering Department can provide you with more information such as: FIRM information, special flood-related hazards, estimated depth of flooding, information about known flooding and drainage problem areas, and resource areas. The City’s Building and Engineering

Departments can also provide insight to potential flood mitigation measures. If requested in writing to the City Engineer at 55 Sea Street, Quincy, MA 02169, the Engineering Department will visit a property and discuss possible opportunities to minimize flood damage.