Layers:

Layer: Clutha 5yr ARI (Flow approx. 2000m3/s) (1)


Name: Clutha 5yr ARI (Flow approx. 2000m3/s)

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Modelled flood extent for a 5 year ARI flood event (approximately 2000 m3/s) in the Lower Clutha Flood Protection and Drainage Scheme.Developed by ORC Engineering to support the 2026 ORC rates review process for ORC's flood protection and drainage schemes.Dataset to be updated if and/or when new information becomes available.Data owner: Natural Hazards (Spatial Analyst)

Copyright Text: ORC Natural Hazards. ORC Engineering 2026.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1344497
YMin: 4859596
XMax: 1357167
YMax: 4877193
Spatial Reference: 2193 (2193)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• gridcode (type: esriFieldTypeInteger, alias: gridcode, 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)
• Description (type: esriFieldTypeString, alias: Description, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• ARI (type: esriFieldTypeString, alias: Average Recurrence Interval, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)

Templates:

Name: Clutha_5yr_2000m3s
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/5/2026 5:09:05 AM

Schema Last Edit Date: 8/5/2026 5:08:10 AM

Data Last Edit Date: 8/5/2026 5:09:05 AM

Layer: Clutha 10yr ARI (Flow approx. 2850 m3/s) (2)


Name: Clutha 10yr ARI (Flow approx. 2850 m3/s)

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Modelled flood extent for a 10 year ARI flood event (approximately 2850 m3/s) in the Lower Clutha Flood Protection and Drainage Scheme.Developed by ORC Engineering to support the 2026 ORC rates review process for ORC's flood protection and drainage schemes.Dataset to be updated if and/or when new information becomes available.Data owner: Natural Hazards (Spatial Analyst)

Copyright Text: ORC Natural Hazards. ORC Engineering 2026.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1344497
YMin: 4859555
XMax: 1357167
YMax: 4877194
Spatial Reference: 2193 (2193)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• gridcode (type: esriFieldTypeInteger, alias: gridcode, 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)
• Description (type: esriFieldTypeString, alias: Description, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• ARI (type: esriFieldTypeString, alias: Average Recurrence Interval, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)

Templates:

Name: Clutha_10yr_2850m3s
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/5/2026 5:14:27 AM

Schema Last Edit Date: 8/5/2026 5:13:32 AM

Data Last Edit Date: 8/5/2026 5:14:27 AM

Layer: Clutha 20yr ARI (Flow approx. 3250 m3/s) (3)


Name: Clutha 20yr ARI (Flow approx. 3250 m3/s)

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Modelled flood extent for a 20 year ARI flood event (approximately 3200 m3/s) in the Lower Clutha Flood Protection and Drainage Scheme.Developed by ORC Engineering to support the 2026 ORC rates review process for ORC's flood protection and drainage schemes.Dataset to be updated if and/or when new information becomes available.Data owner: Natural Hazards (Spatial Analyst)

Copyright Text: ORC Natural Hazards. ORC Engineering 2026.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1344497
YMin: 4859550
XMax: 1357167
YMax: 4877194
Spatial Reference: 2193 (2193)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• gridcode (type: esriFieldTypeInteger, alias: gridcode, 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)
• Description (type: esriFieldTypeString, alias: Description, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• ARI (type: esriFieldTypeString, alias: Average Recurrence Interval, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)

Templates:

Name: Clutha_20yr_3250m3s
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/5/2026 5:17:51 AM

Schema Last Edit Date: 8/5/2026 5:17:15 AM

Data Last Edit Date: 8/5/2026 5:17:51 AM

Layer: Clutha_50yr ARI (Flow approx. 4000m3/s) (4)


Name: Clutha_50yr ARI (Flow approx. 4000m3/s)

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Modelled flood extent for a 50 year ARI flood event (approximately 4000 m3/s) in the Lower Clutha Flood Protection and Drainage Scheme.Developed by ORC Engineering to support the 2026 ORC rates review process for ORC's flood protection and drainage schemes.Dataset to be updated if and/or when new information becomes available.Data owner: Natural Hazards (Spatial Analyst).

Copyright Text: ORC Natural Hazards. ORC Engineering 2026.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1344497
YMin: 4859525
XMax: 1357167
YMax: 4877201
Spatial Reference: 2193 (2193)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• gridcode (type: esriFieldTypeInteger, alias: gridcode, 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)
• Description (type: esriFieldTypeString, alias: Description, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• ARI (type: esriFieldTypeString, alias: Average Recurrence Interval, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)

Templates:

Name: Clutha_50yr_4000m3s
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/5/2026 5:21:33 AM

Schema Last Edit Date: 8/5/2026 5:21:01 AM

Data Last Edit Date: 8/5/2026 5:21:33 AM

Layer: Clutha_100yr_M (5)


Name: Clutha_100yr_M

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Modelled flood extent for a 100 year ARI flood event (approximately 4000-5600 m3/s) in the Lower Clutha Flood Protection and Drainage Scheme.Developed by ORC Engineering to support the 2026 ORC rates review process for ORC's flood protection and drainage schemes.Dataset to be updated if and/or when new information becomes available.Data owner: Natural Hazards (Spatial Analyst).

Copyright Text: ORC Natural Hazards. ORC Engineering 2026.

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: 1344305
YMin: 4859480
XMax: 1358089
YMax: 4882922
Spatial Reference: 2193 (2193)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• gridcode (type: esriFieldTypeInteger, alias: gridcode, 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)
• Description (type: esriFieldTypeString, alias: Description, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• ARI (type: esriFieldTypeString, alias: Average Recurrence Interval, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)
• Source (type: esriFieldTypeString, alias: Source, SQL Type: sqlTypeOther, length: 256, nullable: true, editable: true)

Templates:

Name: Clutha_100yr_M
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/5/2026 5:26:22 AM

Schema Last Edit Date: 8/5/2026 5:25:12 AM

Data Last Edit Date: 8/5/2026 5:26:22 AM