For detailed study Special Flood Hazard Areas (SFHAs) this label indicates the water surface elevation of the base flood, rounded to the nearest foot, in relation to a standard set of geographic data.

A wavy line is used to indicate when this rounded base flood elevation varies along a watercourse (Typically Riverine AE zones).

When the rounded base flood elevation is uniform across a large area, a BFE label below the zone label is used (Typically Ponding AH, Lacustrine (Lake) AE, and Coastal AE and VE zones).

Remember, you must refer to the Flood Insurance Study Profile to get the actual BFE for floodplain management and flood insurance purposes.