20220131
09114700
FALSE
20230918
09471600
20230918
09471600
S_LOMR
497364.314200
978397.099700
4741779.648600
5187754.452600
1
4.794
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.1.0'><WKT>PROJCS["NAD_1983_UTM_Zone_11N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-117.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26911]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26911</WKID><LatestWKID>26911</LatestWKID></ProjectedCoordinateSystem>
NAD_1983_UTM_Zone_11N
1.0
ISO19139
150000000
5000
dataset
GIS Section
Idaho Department of Water Resources
322 East Front Street
Boise
Idaho
83720
gisinfo@idwr.idaho.gov
US
2082874000
2082876700
20230918
ISO 19115 Geographic Information - Metadata
DIS_ESRI1.0
002
withheld
Local Area Network
3.283
File Geodatabase
ArcMap 10.8
File Geodatabase Feature Class
ArcMap 10.8
4.794
Esri ArcGIS 13.1.0.41833
S_LOMR
2021-10-01T00:00:00
2021-10-28T00:00:00
2021-10-28T00:00:00
2296229.680052
2340530.827806
1403752.218171
1325534.880506
1
0
0.000000
0.000000
-116.533353
-115.96007
43.817627
43.10313
1
1
-117.034567
-110.744856
46.843332
42.679519
0.000000
0.000000
This is an update of the digital FIRM information in the state of Idaho. This feature class shows areas depicting a Letter of Map Revision (LOMR) boundary.
The FIRM is the basis for floodplain management, mitigation, and insurance
activities for the National Flood Insurance Program (NFIP). Insurance applications include
enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act,
which "... requires the purchase of flood insurance by property owners who are being
assisted by Federal programs or by Federally supervised, regulated or insured agencies or
institutions in the acquisition or improvement of land facilities located or to be located in
identified areas having special flood hazards," Section 2 (b) (4) of the Flood Disaster
Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas
(SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of
premium rates for flood coverage offered through the NFIP.
This Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. This database has been created by digitizing data from georefrenced paper FIRM maps in the Idaho counties specified by this project . This data should be used as a reference layer, not as an authoritative source.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The Flood Insurance Rate Map (FIRM) depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event (A or AE) and the 0.2-percent-annual- chance flood event (X). The FIRM data can be derived from Flood Insurance Studies (FISs) and previously published Flood Insurance Rate Maps (FIRMs). The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). This database has been created by digitizing data from georefrenced paper FIRM maps and adding information from FIS where available. All FIRMs were georeferenced at a 1:4000 scale or finer. This data should be used as a reference layer, not as an authoritative source. </SPAN></SPAN></P><P><SPAN>Section 11 of FEMA's "Flood Insurance Rate Map (FIRM) Database Technical Reference: Preparing Flood Insurance Rate Map Databases (Nov. 2022)" document contains a detailed description of each attribute code and a reference to other relevant information.</SPAN></P><P><A href="https://www.fema.gov:443/flood-maps/guidance-reports/guidelines-standards/technical-references-flood-risk-analysis-and-mapping" STYLE="text-decoration:underline;"><SPAN>https://www.fema.gov/flood-maps/guidance-reports/guidelines-standards/technical-references-flood-risk-analysis-and-mapping</SPAN></A></P><P><A href="https://www.fema.gov:443/sites/default/files/documents/fema_firm-database-technical-reference_112022.pdf" STYLE="text-decoration:underline;"><SPAN>https://www.fema.gov/sites/default/files/documents/fema_firm-database-technical-reference_112022.pdf</SPAN></A></P></DIV></DIV></DIV>
FEMA Flood Hazard Zone
Special Flood Hazard Area
Digital Flood Insurance Rate Map
NFIP
Base Flood Elevation
SFHA
Flood Insurance Rate Map
FIRM
Floodway
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The hardcopy FIRM and the accompanying FISs are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78). These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. However, the hardcopy flood maps and flood profiles are the authoritative documents for the NFIP. Acknowledgement of FEMA would be appreciated in products derived from these data.</SPAN></P></DIV></DIV></DIV>
FEMA, IDWR, Custer County, Idaho
Floodplain Unit
Idaho Department of Water Resources
26
Idtm83
EPSG
6.11(3.0.1)
The DFIRM Database is made up of several data themes
containing both spatial and attribute information. These data together represent the current
flood risk for the subject area as identified by FEMA. The attribute tables include SFHA
locations, flood zone designations, BFEs, political entities, cross-section locations, FIRM
panel information, and other data related to the NFIP.
Section 11 of FEMA's "Flood Insurance Rate Map (FIRM) Database Technical Reference: Preparing Flood Insurance
Rate Map Databases (Nov. 2022)" document contains a detailed description of each attribute code and a reference
to other relevant information.
https://www.fema.gov/flood-maps/guidance-reports/guidelines-standards/technical-references-flood-risk-analysis-and-mapping
https://www.fema.gov/sites/default/files/documents/fema_firm-database-technical-reference_112022.pdf
The following tables are included in this data set:
L_Comm_Info
L_Stn_Start
Study_Info
S_bfe
S_firm_pan
S_fld_haz_ar
S_fld_haz_ln
S_gen_struct
S_label_pt
S_perm_bmk
S_plss_ln
S_pol_ar
S_pol_ln
S_quad_index
S_trnsport_ln
S_wtr_ln
S_xs
SOURCE_CIT
SOURCE_CIT
String
21
0
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
S_LOMR
Feature Class
26
DFIRM_ID
DFIRM_ID
String
6
0
0
VERSION_ID
VERSION_ID
String
11
0
0
Shape
SHAPE
Geometry
0
Feature geometry.
ESRI
Coordinates defining the features.
0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
LOMR_ID
LOMR_ID
String
32
0
0
EFF_DATE
EFF_DATE
Date
8
0
0
CASE_NO
CASE_NO
String
13
0
0
SCALE
SCALE
String
5
0
0
STATUS
STATUS
String
12
0
0
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
GFID
GFID
String
36
0
0
Simple
FALSE
26
TRUE
FALSE