Parent Layer: Impervious Surfaces

Name: 2023 Countywide Impervious

Display Field: IMPERVIOUS_TYPE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This polygon dataset represents impervious surface in Fairfax County. This dataset also includes areas that drain to Fairfax County. This includes portions of City of Fairfax, City of Alexandria, Falls Church, Arlington and Loudoun County. The impervious area in Fairfax County was originally captured in the 2017 planimetric data update. The dataset has since been updated using the 2022/2023 Eagleview orthophotos. The source impervious data for Falls Church is from 2017. The source impervious for Arlington and Loudoun is updated periodically. This dataset is a snapshot of the current impervious data from each jurisdiction on April 1, 2025. Fairfax County Land Development Services will update this layer when Fairfax County receives updated planimetric data. This dataset is designed for use in the Drainage Basin Delineation Tool. The tool delineates drainage basins and calculates the impervious area. </SPAN></P><P><SPAN>Contact: Land Development Services </SPAN></P><P><SPAN>Data Accessibility: Publicly Available</SPAN></P><P><SPAN>Update Frequency: Never</SPAN></P><P><SPAN>Last Revision Date: 4/1/2025</SPAN></P><P><SPAN>Creation Date: 4/1/2025</SPAN></P><P><SPAN>Layer Name: LDSAMGR.COUNTY_IMPERVIOUS_2023</SPAN></P></DIV></DIV></DIV>

Copyright Text: Fairfax County, Virginia; Land Development Services

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 10000

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: -8634316.742018769
YMin: 4667297.81198504
XMax: -8574713.38579734
YMax: 4730884.130455457
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [204, 204, 204, 255]
Outline:
N/A
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

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• IMPERVIOUS_TYPE ( type: esriFieldTypeString, alias: Impervious type: , length: 100 , Coded Values: [Airport: Airport] , [Building: Building] , [Building Addition: Building Addition] , ...6 more... )
• IMPERVIOUS_SUBTYPE ( type: esriFieldTypeString, alias: Impervious subtype:, length: 100 , Coded Values: [Apron: Apron] , [Deck: Deck] , [Other: Other] , ...20 more... )
• JURISDICTION_SOURCE ( type: esriFieldTypeString, alias: Jurisdiction source:, length: 100 , Coded Values: [Fairfax County: Fairfax County ] , [Loudoun County: Loudoun County ] , [Falls Church: Falls Church ] , ...2 more... )
• IMPERVIOUS_AREA ( type: esriFieldTypeDouble, alias: Impervious area (sqft): )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, length: 38 )
• created_user ( type: esriFieldTypeString, alias: created_user, length: 255 )
• created_date ( type: esriFieldTypeDate, alias: created_date, length: 8 )
• last_edited_user ( type: esriFieldTypeString, alias: last_edited_user, length: 255 )
• last_edited_date ( type: esriFieldTypeDate, alias: last_edited_date, length: 8 )
• Shape ( type: esriFieldTypeGeometry, alias: SHAPE )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Generate Renderer   Return Updates

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