Name: Hydrologic Unit Boundaries 4th field sub basin

Display Field: HUC4

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This geospatial dataset is a hydrologic unit boundary layer for the Sub-basin (8-digit) level. The dataset is a subset of the 4th level (8-digit) hydrologic unit boundaries of the Watershed Boundary Dataset (WBD) layer for Oregon. It was created by dissolving boundaries from the finer resolution hydrologic units (those of the 5th or 10-digit level) to create these broader boundaries. Boundaries within the this data set were delineated by Pacific Northwest (PNW) Hydrography Framework Partners and Natural Resources Conservation Service (NRCS) to meet state requirements and to contribute to the national WBD repository. To meet these goals, the WBD must adhere to the "Federal Standards for Delineation of Hydrologic Unit Boundaries", dated October, 2004. These boundaries were made from the Oregon and Washington datasets that have been nationally certified by Natural Resources Conservation Service (NRCS) Prior to submission the dataset was subjected to an iterative review and edit process to ensure that the hydrologic boundaries fully satisfy the federal standards. This work was completed under a Memorandum of Understanding between the Pacific Northwest Hydrography Framework Partnership, NRCS and the US Geological Survey (USGS). The current dataset includes the entire 4th level (8-digit) subbasins that fall within or the four county Metro region. This data was originally downloaded from the PNW Hydrography Framework Clearinghouse (http://hydro.reo.gov/hu.html).

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 7293230.44652231
YMin: 406676.267388453
XMax: 7948253.85695538
YMax: 973562.871719169
Spatial Reference: 2913 (2913)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field: SUBBASIN

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• HUC4 (type: esriFieldTypeString, alias: HUC4, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• SUBBASIN (type: esriFieldTypeString, alias: SUBBASIN, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• BASIN (type: esriFieldTypeString, alias: BASIN, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• SUBREGION (type: esriFieldTypeString, alias: SUBREGION, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• REGION (type: esriFieldTypeString, alias: REGION, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• ACRES (type: esriFieldTypeDouble, alias: ACRES, SQL Type: sqlTypeOther, nullable: true, editable: true)
• AREA (type: esriFieldTypeDouble, alias: AREA, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LENGTH (type: esriFieldTypeDouble, alias: LENGTH, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: Clackamas
Name: Clackamas
Domains:

Templates:

Name: Clackamas
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Clackamas

---

ID: Lewis
Name: Lewis
Domains:

Templates:

Name: Lewis
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Lewis

---

ID: Lower Columbia-Sandy
Name: Lower Columbia-Sandy
Domains:

Templates:

Name: Lower Columbia-Sandy
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Lower Columbia-Sandy

---

ID: Lower Willamette
Name: Lower Willamette
Domains:

Templates:

Name: Lower Willamette
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Lower Willamette

---

ID: Middle Willamette
Name: Middle Willamette
Domains:

Templates:

Name: Middle Willamette
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Middle Willamette

---

ID: Molalla-Pudding
Name: Molalla-Pudding
Domains:

Templates:

Name: Molalla-Pudding
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Molalla-Pudding

---

ID: Nehalem
Name: Nehalem
Domains:

Templates:

Name: Nehalem
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Nehalem

---

ID: Tualatin
Name: Tualatin
Domains:

Templates:

Name: Tualatin
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Tualatin

---

ID: Wilson-Trask-Nestucca
Name: Wilson-Trask-Nestucca
Domains:

Templates:

Name: Wilson-Trask-Nestucca
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Wilson-Trask-Nestucca

---

ID: Yamhill
Name: Yamhill
Domains:

Templates:

Name: Yamhill
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SUBBASIN: Yamhill

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/14/2023 1:50:05 AM

Schema Last Edit Date: 2/14/2023 1:50:05 AM

Data Last Edit Date: 2/10/2023 2:16:10 AM

Supported Operations:   Query   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat