The elevation of surface water resulting from a food that has a one-percent chance of equaling or exceeding that level in any given year. The BFE is shown on the Flood Insurance Rate Map (FIRM) for zones AE, AH, A1-A30, AR, AR/A, AR/AE, AR/ A1-A30, AR/AH, AR/AO, V1-V30 and VE.