Water surface elevations of the base flood for the central Arizona Flood Insurance Rate Maps (FIRM)
Author(s):
- Maricopa County Flood Control District
Abstract:
Water surface elevations of the base flood as approved by the Federal mergency management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM). The base flood elevation, in feet, is in relation to the National Geodetic Vertical Datum of 1929. Profile baselines are for the Flood Insurance Rate Maps (FIRM). The cross section data are used for the production of Flood Insurance Rate Maps. The Flood Insurance Rate Maps (FIRMs) show different floodplains with different zone designations. These are primarily for insurance rating purposes, but the zone differentiation can be very helpful for other floodplain management purposes. The differentiated floodplain zones are used for the production of Flood Insurance Rate Maps. Maricopa County has been subdivided into FIRM panels for the publication and distribution of FIRMs. Profile baselines are for the Flood Insurance Rate Maps (FIRM).
Keywords:
Temporal Coverage:
2005Geographic Coverage:
Geographic Description: Phoenix metropolitan area and outlying desertBounding Coordinates:
Longitude:-113.341476 to -111.591574
Latitude:34.006497 to 32.907536
Contact:
Information Manager,Global Institute of Sustainability,Arizona State University,POB 875402,TEMPE
caplter.data@asu.edu
Data Files (6) :
Spatial Vector: Water surface elevations of the base flood for the Flood Insurance Rate Maps (FIRM)
Description: Water surface elevations of the base flood as approved by the Federal mergency management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM). The base flood elevation, in feet, is in relation to the National Geodetic Vertical Datum of 1929.
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: LineString
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| FNODE_ | FNODE_ |
integer | |
| TNODE_ | TNODE_ |
integer | |
| LPOLY_ | LPOLY_ |
integer | |
| RPOLY_ | RPOLY_ |
integer | |
| LENGTH | LENGTH |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| PRJ_RID | FCDMC GIS project id. |
integer | |
| ELEVATION | ELEVATION |
integer | foot |
| VERT_DATUM | The vertical datum of the elevation. They are currently all NGVD29. |
string | |
| PRJ_UL | FCDMC contract number that the floodplain was delineated from. |
string | |
| PRJ_NM | FCDMC contract name associated with the contract number. |
string |
Spatial Vector: Cross sections for the Flood Insurance Rate Maps (FIRM)
Description: Cross sections as approved by the Federal Emergency management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM)
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: LineString
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| FNODE_ | FNODE_ |
integer | |
| TNODE_ | TNODE_ |
integer | |
| LPOLY_ | LPOLY_ |
integer | |
| RPOLY_ | RPOLY_ |
integer | |
| LENGTH | LENGTH |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| XSECTIONID | The cross section id. |
string | |
| ELEV_REG | Regulatory water surface elevation in the Floodway Data Table. |
Float | |
| VERT_DATUM | The vertical datum of the elevation. They are currently all NGVD29, even if the study was not. |
string | |
| STATION | The station id in the Floodway Data Table. |
string | |
| STREAMNAME | The stream name as assigned by FEMA. |
string | |
| STATIONDFN | The description of the cross section stationing (field Station). |
string |
Spatial Vector: Floodplain zones computed by the Flood Control District of Maricopa County (FCDMC)
Description: Floodplain zones as computed by the Flood Control District of Maricopa County (FCDMC) according to the Federal Emergency Management Agency (FEMA) letter coding scheme, prior to approval by FEMA.
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: Polygon
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| AREA | AREA |
Float | |
| PERIMETER | PERIMETER |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| PRJ_RID | FCDMC GIS project id |
integer | |
| ZONE | FEMA floodplain zone type. |
string | |
| ZONE_DESC | Description of the FEMA zone type (field Zone). |
string | |
| DEPTH | Depth in feet |
integer | |
| VELOCITY | Velocity in FPS for zone types of AO. |
integer | |
| ELEVATION | Elevation in feet for zone types of AH and sometimes AE. |
Float | |
| PRJ_UL | FCDMC contract number that the floodplain was delineated from. |
string | |
| PRJ_NM | FCDMC contract name associated with the contract number. |
string |
Spatial Vector: Floodplain zones as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM).
Description: Floodplain zones as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM). Differentiated according to the FEMA letter coding scheme.
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: Polygon
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| AREA | AREA |
Float | |
| PERIMETER | PERIMETER |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| PRJ_RID | FCDMC GIS project id |
integer | |
| ZONE | FEMA floodplain zone type. |
string | |
| ZONE_DESC | Description of the FEMA zone type (field Zone). |
string | |
| DEPTH | Depth in feet. |
integer | |
| VELOCITY | Velocity in FPS for zone types of AO. |
integer | |
| ELEVATION | Elevation in feet for zone types of AH and sometimes AE. |
integer | |
| VERT_DATUM | The vertical datum of the elevation. They are currently all NGVD29, even if the study was not. |
string | |
| PRJ_UL | FCDMC contract number that the floodplain was delineated from. |
string | |
| PRJ_NM | FCDMC contract name associated with the contract number. |
string | |
| TOPO_DT | Date that the topography was captured. |
Date |
Spatial Vector: Flood Insurance Rate Map (FIRM) panel boundaries
Description: Maricopa County has been subdivided into FIRM panels for the publication and distribution of FIRMs
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: Polygon
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| AREA | AREA |
Float | |
| PERIMETER | PERIMETER |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| FIRMMAPNUM | FEMA FIRM map panel number. |
string | |
| PANELPRNTD | Indicates whether the panel is printed or not. |
string | |
| PANELNOTE | If applicable, the reason why a panel is not printed. |
string | |
| PANELSCALE | Printed (or what would be the printed) scale of the FIRM panel. |
integer | |
| EFFECTDATE | The effective date of the FIRM panel. |
Date |
Spatial Vector: Profile baselines for the Flood Insurance Rate Maps (FIRM)
Description: Profile baselines as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM)
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Geometry Type: LineString
| Column | Description | Type | Units |
|---|---|---|---|
| FID | Internal feature number. |
OID | |
| Shape | Feature geometry. |
Geometry | |
| FNODE_ | FNODE_ |
integer | |
| TNODE_ | TNODE_ |
integer | |
| LPOLY_ | LPOLY_ |
integer | |
| RPOLY_ | RPOLY_ |
integer | |
| LENGTH | LENGTH |
Float | |
| EXTCLIP_ | EXTCLIP_ |
integer | |
| EXTCLIP_ID | EXTCLIP_ID |
integer | |
| STREAMNAME | The stream name as assigned by FEMA. |
string |