Name: Channel Centreline

Display Field: Shape_Leng

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: A line feature denoting the centreline of the tidegut/channel linking Ducklake to Wasilla Creek as determined through manual inspection of the August 15 2025 orthoimagery and the associated DSM. The line seeks to denote the deepest part of the channel, which is often, though not always, the centre of the waterway.

Copyright Text: Author: Kassie Colson ACCS, Funding: Alaska Department of Fish and Game

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: -16625374.5068808
YMin: 8744257.75048282
XMax: -16625342.2530885
YMax: 8744553.07748659
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 5773 (5773)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSLS","style":"esriSLSSolid","color":[132,111,42,255],"width":1}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: true

HasM: true

Time Info:

Start Time Field: null
End Time Field: null
Track ID Field: null
Time Extent: null

Time Reference: UTC
Time Interval: 0
Time Interval Units:
Has Live Data: false
Export Options: null

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Shape_Leng (type: esriFieldTypeDouble, alias: Shape_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Length (type: esriFieldTypeInteger, alias: Length, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Depth (type: esriFieldTypeInteger, alias: Depth, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Channel Centreline
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 7/24/2026 3:12:06 AM

Schema Last Edit Date: 7/24/2026 3:12:06 AM

Data Last Edit Date: 7/24/2026 3:12:06 AM

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