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

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Can Modify Layer: true

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Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

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Spatial Reference: 2994  (2994)

Drawing Info:

Renderer:
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Labeling Info:

Advanced Query Capabilities:

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Supports Query With Distance: true
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HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Study_Link ( type: esriFieldTypeString, alias: Study_Link, length: 255 )
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Supported Operations:   Query   Generate Renderer   Return Updates

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