View In:   ArcGIS Online Map Viewer

Parent Layer: Environmental

Name: Flood Zone (effective as of 6/16/09)

Display Field: FLD_AR_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The Digital Flood Insurance Rate Map (DFIRM) Database 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, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:24,000. Purpose: 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.

Copyright Text: Federal Emergency Management Agency. The U.S. Army Corps of Engineers (Norfolk, VA) was instrumental in the development of this dataset.

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: false

Supports Datum Transformation: true

Extent:

XMin: 1.1989942999166667E7
YMin: 3563623.998333335
XMax: 1.2171590453333333E7
YMax: 3667100.240833342
Spatial Reference: 102747  (2284)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: FLD_ZONE
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: VE
  Label: VE
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [245, 0, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [245, 0, 0, 255]
  Width: 0
• Value: A
  Label: A
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [245, 82, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [245, 82, 0, 255]
  Width: 0
• Value: AE
  Label: AE
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [245, 163, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [245, 163, 0, 255]
  Width: 0
• Value: X500
  Label: X500
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [245, 245, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [245, 245, 110, 255]
  Width: 0
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: FLD_ZONE

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• FLD_AR_ID ( type: esriFieldTypeString, alias: FLD_AR_ID, editable: true, nullable: true, length: 11, defaultValue: null, modelName: FLD_AR_ID )
• FLD_ZONE ( type: esriFieldTypeString, alias: FLD_ZONE, editable: true, nullable: true, length: 55, defaultValue: null, modelName: FLD_ZONE )
• FLOODWAY ( type: esriFieldTypeString, alias: FLOODWAY, editable: true, nullable: true, length: 30, defaultValue: null, modelName: FLOODWAY )
• SFHA_TF ( type: esriFieldTypeString, alias: SFHA_TF, editable: true, nullable: true, length: 1, defaultValue: null, modelName: SFHA_TF )
• STATIC_BFE ( type: esriFieldTypeDouble, alias: STATIC_BFE, editable: true, nullable: true, defaultValue: null, modelName: STATIC_BFE )
• V_DATUM ( type: esriFieldTypeString, alias: V_DATUM, editable: true, nullable: true, length: 6, defaultValue: null, modelName: V_DATUM )
• DEPTH ( type: esriFieldTypeDouble, alias: DEPTH, editable: true, nullable: true, defaultValue: null, modelName: DEPTH )
• LEN_UNIT ( type: esriFieldTypeString, alias: LEN_UNIT, editable: true, nullable: true, length: 20, defaultValue: null, modelName: LEN_UNIT )
• VELOCITY ( type: esriFieldTypeDouble, alias: VELOCITY, editable: true, nullable: true, defaultValue: null, modelName: VELOCITY )
• VEL_UNIT ( type: esriFieldTypeString, alias: VEL_UNIT, editable: true, nullable: true, length: 20, defaultValue: null, modelName: VEL_UNIT )
• AR_REVERT ( type: esriFieldTypeString, alias: AR_REVERT, editable: true, nullable: true, length: 6, defaultValue: null, modelName: AR_REVERT )
• BFE_REVERT ( type: esriFieldTypeDouble, alias: BFE_REVERT, editable: true, nullable: true, defaultValue: null, modelName: BFE_REVERT )
• DEP_REVERT ( type: esriFieldTypeDouble, alias: DEP_REVERT, editable: true, nullable: true, defaultValue: null, modelName: DEP_REVERT )
• SOURCE_CIT ( type: esriFieldTypeString, alias: SOURCE_CIT, editable: true, nullable: true, length: 11, defaultValue: null, modelName: SOURCE_CIT )
• FLD_ZONE_09 ( type: esriFieldTypeString, alias: FLD_ZONE_09, editable: true, nullable: true, length: 55, defaultValue: null, modelName: FLD_ZONE_09 )
• LOMC_CASE_NUM ( type: esriFieldTypeString, alias: LOMC_CASE_NUM, editable: true, nullable: true, length: 55, defaultValue: null, modelName: LOMC_CASE_NUM )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, editable: false, nullable: false, length: 38, defaultValue: null, modelName: GlobalID )

Types:

ID: VE
Name: VE
Domains:
Templates:
• Name: VE
  Description:
  Prototype:
  LOMC_CASE_NUM: null
  FLD_ZONE_09: null
  FLD_AR_ID: null
  FLD_ZONE: VE
  FLOODWAY: null
  SFHA_TF: null
  STATIC_BFE: null
  V_DATUM: null
  DEPTH: null
  LEN_UNIT: null
  VELOCITY: null
  VEL_UNIT: null
  AR_REVERT: null
  BFE_REVERT: null
  DEP_REVERT: null
  SOURCE_CIT: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: A
Name: A
Domains:
Templates:
• Name: A
  Description:
  Prototype:
  LOMC_CASE_NUM: null
  FLD_ZONE_09: null
  FLD_AR_ID: null
  FLD_ZONE: A
  FLOODWAY: null
  SFHA_TF: null
  STATIC_BFE: null
  V_DATUM: null
  DEPTH: null
  LEN_UNIT: null
  VELOCITY: null
  VEL_UNIT: null
  AR_REVERT: null
  BFE_REVERT: null
  DEP_REVERT: null
  SOURCE_CIT: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: AE
Name: AE
Domains:
Templates:
• Name: AE
  Description:
  Prototype:
  LOMC_CASE_NUM: null
  FLD_ZONE_09: null
  FLD_AR_ID: null
  FLD_ZONE: AE
  FLOODWAY: null
  SFHA_TF: null
  STATIC_BFE: null
  V_DATUM: null
  DEPTH: null
  LEN_UNIT: null
  VELOCITY: null
  VEL_UNIT: null
  AR_REVERT: null
  BFE_REVERT: null
  DEP_REVERT: null
  SOURCE_CIT: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: X500
Name: X500
Domains:
Templates:
• Name: X500
  Description:
  Prototype:
  LOMC_CASE_NUM: null
  FLD_ZONE_09: null
  FLD_AR_ID: null
  FLD_ZONE: X500
  FLOODWAY: null
  SFHA_TF: null
  STATIC_BFE: null
  V_DATUM: null
  DEPTH: null
  LEN_UNIT: null
  VELOCITY: null
  VEL_UNIT: null
  AR_REVERT: null
  BFE_REVERT: null
  DEP_REVERT: null
  SOURCE_CIT: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

Capabilities: Query,Extract

Sync Can Return Changes: true

Is Data Versioned: true

Supports Rollback On Failure: false

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Supported Operations:   Query   Query Attachments   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata