Parent Layer: Environmental Features

Name: Floodplain (FEMA - 2016) Poly

Display Field: FLD_ZONE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis. The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM 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 FIRM Database is derived from Flood Insurance Studies (FISs), previously published 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 FEMA. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all FIRM Databases and corresponding LOMRs available on the publication date of the data set. The specification for the horizontal control of FIRM Databases is consistent with those required for mapping at a scale of 1:12,000. This file is georeferenced to the Earth's surface using the Geographic Coordinate System (GCS) and North American Datum of 1983.Flood hazard areas identified on the Flood Insurance Rate Map are identified as a Special Flood Hazard Area (SFHA). SFHA are defined as the area that will be inundated by the flood event having a 1-percent chance of being equaled or exceeded in any given year. The 1-percent annual chance flood is also referred to as the base flood or 100-year flood. SFHAs are labeled as Zone A, Zone AO, Zone AH, Zones A1-A30, Zone AE, Zone A99, Zone AR, Zone AR/AE, Zone AR/AO, Zone AR/A1-A30, Zone AR/A, Zone V, Zone VE, and Zones V1-V30. Moderate flood hazard areas, labeled Zone B or Zone X (shaded) are also shown on the FIRM, and are the areas between the limits of the base flood and the 0.2-percent-annual-chance (or 500-year) flood. The areas of minimal flood hazard, which are the areas outside the SFHA and higher than the elevation of the 0.2-percent-annual-chance flood, are labeled Zone C or Zone X (unshaded).

Copyright Text:

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 1288648.9935842305
YMin: 316764.0780106336
XMax: 1406434.6694297343
YMax: 533647.6888619661
Spatial Reference: 103069  (6488)  VCSWkid(105703)  LatestVCSWkid(6360)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: FLD_ZONE
Field 2: ZONE_SUBTY
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: A,
  Label: 1% Annual Chance Flood Hazard
  Description:
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  Color: [0, 230, 255, 255]
  Outline:
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• Value: AE,
  Label: 1% Annual Chance Flood Hazard
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• Value: AH,
  Label: 1% Annual Chance Flood Hazard
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• Value: AO,
  Label: 1% Annual Chance Flood Hazard
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  Color: [0, 230, 255, 255]
  Outline:
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• Value: VE,
  Label: 1% Annual Chance Flood Hazard
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  Color: [0, 230, 255, 255]
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• Value: AE,FLOODWAY
  Label: Regulatory Floodway
  Description:
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  Outline:
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• Value: OPEN WATER,
  Label: Open Water
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• Value: X,0.2 PCT ANNUAL CHANCE FLOOD HAZARD
  Label: 0.2% Annual Chance Flood Hazard
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• Value: X,AREA WITH REDUCED FLOOD RISK DUE TO LEVEE
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• Value: X,AREA OF MINIMAL FLOOD HAZARD
  Label: Area of Minimal Flood Hazard
  Description:
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Transparency: 20
Labeling Info:

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Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

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• SHAPE_Length ( type: esriFieldTypeDouble, alias: SHAPE_Length )
• SHAPE_Area ( type: esriFieldTypeDouble, alias: SHAPE_Area )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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