Design Flood Elevation

Design Flood Elevation - the regulatory flood elevation adopted by a community that meets or exceeds the Base Flood Elevation. Many communities require structures to be built above the BFE by adding freeboard (typically 1-3 feet) to provide an additional margin of safety. The DFE is the minimum elevation at which new construction and substantial improvements must be built to comply with local floodplain management regulations. Building to the DFE rather than just the BFE provides better flood protection and may result in lower insurance premiums. The DFE is determined by local ordinances and varies by community.

The computed elevation to which floodwater is anticipated to rise during a base flood (a flood with a 1% chance of occurring in any given year, also called a 100-year flood). Shown on FEMA Flood Insurance Rate Maps (FIRMs), the BFE is used to determine flood insurance premiums and building requirements. Structures built below the BFE face higher insurance costs and greater flood risk. Local building codes typically require new construction in flood zones to have the lowest floor elevated at or above the BFE. Knowing your property's BFE is crucial for flood risk assessment and insurance decisions.

Additional elevation above the Base Flood Elevation required by many communities as a factor of safety against higher flood levels than predicted. Freeboard compensates for uncertainties in flood calculations, wave action, and future development that may increase flood heights. Common freeboard requirements range from 1 to 3 feet above the BFE. Building with freeboard provides better flood protection and typically results in lower flood insurance premiums through the Community Rating System. Some communities mandate freeboard for new construction, while others offer it as a voluntary best practice. Freeboard is especially important in coastal areas subject to wave action.

A program administered by FEMA that provides flood insurance premium discounts to residents of communities that implement floodplain management practices beyond NFIP minimum requirements. Communities earn points through activities in four categories: public information, mapping and regulations, flood damage reduction, and warning and response. Points determine the community's CRS class (1-10), with each class providing a 5% premium discount in Special Flood Hazard Areas. Class 1 communities receive a 45% discount. The program encourages communities to reduce flood risk, protect natural floodplain functions, and facilitate accurate insurance rating. CRS communities must recertify annually and undergo detailed verification every few years.

The repayment value for indemnification due to loss or damage of property; in most cases it is replacement cost minus depreciation.

The decrease in value of property over time due to wear, tear, age, or obsolescence.

The cost to replace damaged or destroyed property with new property of similar kind and quality, without deduction for depreciation.

Insurance coverage that protects your home and personal property against damage, theft, and liability claims.