The Federal Emergency Management Agency is proposing updates to the Flood Insurance Rate Map (FIRM) for Frederick County and invite the public to participate in a 90-day appeal and comment period. The 90-day appeal period began April 29, 2021. Residents, business owners and other community partners are encouraged to review the updated maps to learn about local flood risks and potential future flood insurance requirements. They may submit an appeal if they perceive that modeling or data used to create the map is technically or scientifically incorrect. Link to the New FEMA Mapping Effort.
The FEMA Floodplain is defined as the combined area of the 100-year frequency flood (including the floodway and floodway fringe), and approximate floodplain.
Resources from FEMA
Flooding soils are those soils with the characteristic of flooding, or the temporary inundation of an area caused by overflowing streams, by runoff from adjacent slopes, or by tides as identified in the Soil Survey of Frederick County, Maryland and the Web Soil Survey, Water Features table, as amended.
Wetlands are defined as any land which is either considered private wetland or state wetland pursuant to Title 9, Wetland and Riparian Rights, Natural Resources Article, Annotated Code of Maryland, or defined as wetland under the procedures described in the "Federal Manual for Identifying and Delineating Jurisdictional Wetlands" by the Federal Interagency Committee for Wetland Delineation, 1989, as amended.