On March 1, 2014, Calcasieu Parish began enforcement of a new freeboard elevation ordinance which requires all structures built or placed or substantial improvements to structures that are located in special flood hazard areas and areas of moderate flooding to have an additional one (1) foot of elevation which determines the lowest floor elevation requirement for a structure.
The freeboard elevation is effective in all flood zones labeled: A, AE, AO, VE & X (shaded)
Enforced on: New Residential and Non-Residential Construction
Manufactured Home placement and new manufactured home parks
Substantially Improved Structures
Mechanical Equipment servicing structures (i.e. A/C, Sewer Pump)
Lowest Floor Elevation is determined by adding one (1) foot to the highest of the following four (4) measurements, where applicable.
1. FEMA base flood elevation (as noted on the latest adopted Flood Insurance Rate
Map or nearest base flood elevation or community determined elevation;
2. Center line of the nearest public road adjacent or across from proposed development
3. Top of the nearest upstream or downstream Sanitary Sewer Manhole where a
community or municipal system is provided;
4. Highest recorded historical or modeled 100 year inundation levels.
A licensed land surveyor or engineer will be required to certify numbers two and three above through the use of the following freeboard elevation form: