Data included on this CD-ROM represents Final Flood Insurance Rate Map (FIRM)
data that has been published as effective FIRM or DFIRM information.  The data
are the official and legal representation of the effective flood zones. 
 

Directory Structure:
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There are 2 versions of FEMA's DFIRM database:  the Standard and the Enhanced.
The Standard database information is stored under the /DFIRM_DB directory and 
if there are any Enhanced database tables, they would be stored in the /Enhanced_DB 
directory.  The three database file formats are found in the following sub-directories:
Files in Shapefile format (.shp/.shx/.dbf) are located at /ArcShape
Files in ESRI Interchange format (.e00) are located at /ArcExport
Files in MapInfo Interchange format (.mif/.mid) are located at /MapInfo.

The /Document directory stores the metadata and readme files.
The /Ortho_photos directory stores any applicable raster data that is shown on the 
map along with their world files.
The /RFIRM directoy stores raster images of the printed panels along with 
their world files.
The /FIS directory holds a copy of the FIS in PDF format, when applicable.


For users without access to appropriate GIS software, a data viewer from ESRI,
ArcExplorer 2.0, can be obtained for free at the following website.  This software is 
freely distributable and technical support is solely available from ESRI at 
www.esri.com.


Description of Files:
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User's note: This CD-ROM may not contain all files listed below. Only database 
files relevent to the individual study are included on the CD-ROM.
******************************************************************************


s_base_index	 - Raster base map tiling scheme

s_bfe		 - Base flood elevation lines on the printed DFIRM

s_cbrs		- Coastal Barrier Resources System polygons

s_cst_tsct_ln	- Coastal transect lines

s_firm_pan	- DFIRM panel scheme polygons

s_fld_haz_ar	- Flood hazard zone polygons

s_fld_haz_ln	- Flood hazard zone lines

s_gen_struct	- Hydraulic structures shown on DFIRM such as (levees, wiers, bridges,
		   dams, culverts)

s_label_ld	- Leader lines for printed DFIRM labels

s_label_pt	- Point location of printed DFIRM labels

s_perm_bmk	- National Geodetic Survey (NGS) benchmark locations

s_plss_ar	- Public Land Suvey System (PLSS) section polygons

s_plss_ln		- Public Land Survey System (PLSS) township, range, and section lines

s_pol_ar		- Political boundary polygon

s_pol_ln		- Political boundary line

s_profil_basln	- Hydraulic model profile baseline

s_quad_index	- USGS 7.5 minute quadrangle boundaries

s_riv_mrk		- River Mile marker locations

S_stn_start	- Station start points
            
s_trnsport_ln	- Base map transportation line features

s_wtr_ar		- Water body polygons

s_wtr_ln		- Stream centerlines

s_xs		- Cross section locations

study_info	- General study information

l_comm_info	- Tabular data representing all affected communities

l_mt1_lomc	- Tabular data representing Letters of Map Change (LOMC)

l_pan_revis	- Tabular data representing historic FIRM revisions

l_pol_fhbm	- Tabular data representing FHBM revisions

l_stn_start	- Tabular data representing cross section stationing origins

l_wtr_nm	- Tabular data contaiing the name of surface water features