Name: WBDHU12

Display Field: HUC12

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The hydrologic units (HU) in the WBD form a standardized system for organizing, collecting, managing, and reporting hydrologic information for the nation. The HU in the WBD are arranged in a nested, hierarchical system with each HU in the system identified using a unique code. Hydrologic unit codes (HUC) are developed using a progressive two-digit system where each successively smaller areal unit is identified by adding two digits to the identifying code the smaller unit is nested within. WBD contains eight levels of progressive hydrologic units identified by unique 2- to 16-digit codes. The dataset is complete for the United States to the 12-digit hydrologic unit. The 14- and 16-digit hydrologic units are optional and are not complete for the nation. Efforts are ongoing to complete 10- and 12-digit unit delineations within 8-digit hydrologic units extending across the U.S. – Canada border. Additional information about this effort and access to data is linked on the “resources” section on this page. A similar effort is complete for the 10- and 12-digit units extending across the U.S. – Mexico border.

Service Item Id: 920b80c8bf8848a19905193c5f0a8924

Copyright Text: USGS

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: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -95.5921729622483
YMin: 28.812378019287046
XMax: -87.80820705015755
YMax: 34.29303834942946
Spatial Reference: 4269  (4269)

Drawing Info:

Renderer:
Simple Renderer:
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Outline:
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Color: [178, 178, 178, 255]
Width: 0
Label:
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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 )
• TNMID ( type: esriFieldTypeString, alias: TNMID, length: 40 )
• MetaSourceID ( type: esriFieldTypeString, alias: MetaSourceID, length: 40 )
• SourceDataDesc ( type: esriFieldTypeString, alias: SourceDataDesc, length: 100 )
• SourceOriginator ( type: esriFieldTypeString, alias: SourceOriginator, length: 130 )
• SourceFeatureID ( type: esriFieldTypeString, alias: SourceFeatureID, length: 40 )
• LoadDate ( type: esriFieldTypeDate, alias: LoadDate, length: 8 )
• GNIS_ID ( type: esriFieldTypeInteger, alias: GNIS_ID )
• AreaAcres ( type: esriFieldTypeDouble, alias: AreaAcres )
• AreaSqKm ( type: esriFieldTypeDouble, alias: AreaSqKm )
• States ( type: esriFieldTypeString, alias: States, length: 50 )
• HUC12 ( type: esriFieldTypeString, alias: HUC12, length: 12 )
• Name ( type: esriFieldTypeString, alias: Name, length: 120 )
• HUType ( type: esriFieldTypeString, alias: HUType, length: 255 )
• HUMod ( type: esriFieldTypeString, alias: HUMod, length: 30 )
• ToHUC ( type: esriFieldTypeString, alias: ToHUC, length: 16 )
• NonContributingAreaAcres ( type: esriFieldTypeDouble, alias: NonContributingAreaAcres )
• NonContributingAreaSqKm ( type: esriFieldTypeDouble, alias: NonContributingAreaSqKm )
• SHAPE ( type: esriFieldTypeGeometry, alias: SHAPE )
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• SHAPE.STLength() ( type: esriFieldTypeDouble, alias: SHAPE.STLength() )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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