Name: DPWES Dam Break Inundation Zones

Display Field: DAM_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Dam breach inundation areas for state regulated dams within Fairfax County. Sunny Day – the failure of an impounding structure with the initial water level at the normal reservoir level, usually at the lowest ungated principal spillway elevation or the typical operating water level. PMF Overtopping – the failure of an impounding structure due to overtopping during a Probable Maximum Flood (PMF) event.Contact: DPWES GIS ServicesData Accessibility: For internal county usage only. Prior permission is necessary to share with external data requestors.Update Frequency: Annually Creation Date: 1/1/2001Layer Name: STWMGR.DAM_BREACH_INUNDATION_AREASFeature Dataset Name: STWMGR.FLOOD_INUNDATION_AREAS

Copyright Text: DPWES GIS Services

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 250000.00000000416

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 1.1788499029E7
YMin: 6936161.666999996
XMax: 1.1874271297999993E7
YMax: 7044967.106999993
Spatial Reference: 102746  (2283)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [151, 219, 242, 255]
Outline:
Style: esriSLSSolid
Color: [0, 0, 0, 255]
Width: 0
Label: N/A
Description: N/A
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: 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:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• DAM_NAME ( type: esriFieldTypeString, alias: Dam_Name, length: 50 )
• DAMSITE ( type: esriFieldTypeSmallInteger, alias: DAMSITE )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )
• OWNER ( type: esriFieldTypeString, alias: OWNER, length: 60 )
• EFFECTIVE_DATE ( type: esriFieldTypeString, alias: EFFECTIVE_DATE, length: 25 )
• BREACH_TYPE ( type: esriFieldTypeString, alias: BREACH_TYPE, length: 50 , Coded Values: [PMF Overtopping: PMF Overtopping] , [Sunny Day: Sunny Day] )
• SHAPE.STArea() ( type: esriFieldTypeDouble, alias: SHAPE.STArea() )
• SHAPE.STLength() ( type: esriFieldTypeDouble, alias: SHAPE.STLength() )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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