Flood Hazard Regulations - Updated June 19, 2020
The purpose of flood hazard regulations is to avoid and minimize damage to life and property from flooding events. Flood hazard areas are mapped on Federal Emergency Management Agency (FEMA) Federal Insurance Rate Maps (FIRMs). Flood insurance is available to development that is allowed to be located in designated flood prone areas from the National Flood Insurance Program (NFIP).
To participate in the NFIP, the city of Mountlake Terrace must adopt and enforce a flood hazard reduction ordinance. Minimum requirements of the FEMA NFIP must be met. Participation ensures that properties in the city can receive the lowest possible insurance rates. It also ensures the city is eligible for emergency disaster relief funding. It is therefore in the best interest of the city and its residents to participate in this program.
Proposed Flood Regulations
The proposed 2020 revisions did not make substantive changes, only expanding on descriptions of how a use or development is allowed in a flood area. Much of the existing regulations are being relocated into a separate chapter of city code (Chapter 16.15 - Frequently Flooded Areas).
Flood Prone Area Maps
The updated maps became effective June 19, 2020. There is little or no change to the floodplain delineation from previous FIRMs. The scale the maps are prepared at is too small to track minor differences. If there is a question about the actual flood elevation, a professional engineer or surveyor may be required to evaluate site conditions and submit a flood elevation certificate to FEMA for a determination.