Layers:

Layer: CMZ_Areas (0)

Name: CMZ_Areas

Display Field: StreamName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This study provides Oregon communities with new information about the natural hazards from channel migration. During 2023 and 2024, the Oregon Department of Geology and Mineral Industries (DOGAMI) produced channel migration zone maps for the Zigzag River in Clackamas County. This polygon represents the channel migration zone (CMZ). It identifies the area within which a given stream is most likely to move laterally and change its channel course during the next 30- and 100-years. The CMZ is comprised of the combined active channel; historical migration area; low, medium, and high erosion hazard areas; and avulsion hazard area.

Copyright Text: This project was funded by a U.S. Federal Emergency Management Agency Cooperating Technical Partnership grant.

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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: 468177.8966535479
YMin: 799822.2562336028
XMax: 1597314.6938976347
YMax: 1472601.6200787425
Spatial Reference: 2994  (2994)



Drawing Info:
Renderer:
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Field 2: N/A
Field 3: N/A
Field Delimiter: ,
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Labeling Info:
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Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false


HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

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• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Layer: CMZ_Study_Areas (1)

Name: CMZ_Study_Areas

Display Field: StreamName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer represents the Channel Migration Zone along the Sandy River based on analysis designed by Rapp and Abbe, 2003. The Channel Migration Zone (CMZ) represents the cumulative product of historical analysis and morphological interpretations characterized by the following equation: CMZ = HMZ + AHZ + EHA - DMA.

Copyright Text: John T. English, Daniel E. Coe, and Robert D. Chappell

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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: 466445.20538057387
YMin: 797078.0337926447
XMax: 1598305.4796587974
YMax: 1472780.3871391118
Spatial Reference: 2994  (2994)



Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: Study_Area
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
Style: esriSFSSolid
Color: [130, 130, 130, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Default Label:
UniqueValueInfos:
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Labeling Info:
Advanced Query Capabilities:
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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:
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