Flood Zone Base Plane First Floor

Zone a unnumbered high flooding risk because detailed analyses are not performed for such areas no depths or base flood elevations are shown within these zones.

Flood zone base plane first floor. The lowest floor elevation must be at or above the base flood elevation bfe. Get a flood zone review from a map specialist. This could cause a drastic decrease in flood insurance premiums. The base flood is also referred to as the 1 percent annual chance flood or 100 year flood.

The 1 percent annual chance flood is also referred to as the base flood or 100 year flood. Electrical heating ventilation plumbing air conditioning equipment and other service facilities must be elevated to or above the bfe. Base flood elevation bfe the elevation of surface water resulting from a flood that has a 1 chance of equaling or exceeding that level in any given year. See you home on the official fema flood maps.

Flood mapping is an important part of the national flood insurance program nfip as it is the basis of the nfip regulations and flood insurance requirements. Fema defines the base flood elevation bfe as the computed elevation to which the flood is anticipated to rise during the base flood. An attached garage floor elevation below the bfe can be excluded as the lowest floor for rating if the garage. 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.

The next elevation to review will be c2 section b which is the top of the next highest floor. Dwelling located in an a zone any flood zone beginning with the letter a has an attached garage floor elevation at or above the base flood elevation bfe the garage floor may be excluded for rating. Just in case those terms are new to you the 1 percent annual chance flood means that statistically there s a 1 chance every year that there will be a flood that looks. We would like to show you a description here but the site won t allow us.

Fema s flood mapping program is called risk mapping assessment and planning or risk map. In many situations this will be the first rated floor. Moderate flood hazard areas labeled zone b or zone x shaded are also shown on. For example if you have an above grade crawlspace and you have flood vents then you maybe able to count this as the lowest rated floor.

Enclosed areas below the lowest floor cannot be used for living space.