Name: Flood — Awareness — Creek

Display Field: flood_risk

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset, created in June 2013, provides an indication of the likelihood of a flood occurring from creeks inside the Brisbane City Council local government area. This layer contributes to the overall Flood Awareness Map.Creek flooding occurs when intense rain falls over a creek catchment. Runoff from houses, streets, parks etc contributes to creek flooding. Once the capacity of the creek is reached, overtopping of the banks will occur which can cause flooding. Creek floodwaters can be very fast moving and rise and recede quickly without much warning.There are four different creek flooding likelihood areas in Flood Awareness Map, namely High, Medium, Low and very low.The creek High likelihood layer consists of a combination of the 5% Annual Exceedance Probability (AEP) (20 year Average Recurrence Interval (ARI)) from BCC’s flood inundation extents usually utilising the surfaces produced as part of a Flood Study where available and the remaining areas from the 5% AEP (20 year ARI) delivered as part of the Citywide Flood Awareness Mapping study (Worley Parsons, 2012).The creek Medium likelihood layer consists of a combination of the 1% AEP (100 year ARI) from BCC’s flood inundation extents (outside high likelihood area) usually utilising the surfaces produced as part of a Flood Study where available and the remaining areas from the 1% AEP (100 year ARI) delivered as part of the Citywide Flood Awareness Mapping study (Worley Parsons, 2012).The creek Low likelihood layer consists of a combination of the 0.2% AEP (500 year ARI) from BCC’s flood inundation extents (outside high likelihood area) usually utilising the surfaces produced as part of a Flood Study where available and the remaining areas from the 0.2% AEP (500 year ARI) delivered as part of the Citywide Flood Awareness Mapping study (Worley Parsons, 2012).The creek Very Low likelihood layer consists of a combination of the 0.05% AEP (2000 year ARI) from BCC’s flood inundation extents (outside high likelihood area) usually utilising the surfaces produced as part of a Flood Study where available and the remaining areas from the 0.05% AEP (2000 year ARI) delivered as part of the Citywide Flood Awareness Mapping study (Worley Parsons, 2012).

Copyright Text: © Brisbane City Council 2021

Min. Scale: 27084

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 486611.8939
YMin: 6941027.5
XMax: 519899.4074
YMax: 6982255.5
Spatial Reference: 28356 (28356)

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: FLOOD_RISK

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• FLOOD_RISK (type: esriFieldTypeString, alias: Flood Risk, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• FLOOD_TYPE (type: esriFieldTypeString, alias: Flood Type, SQL Type: sqlTypeOther, length: 25, 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: High
Name: High likelihood (5.0% Annual Chance)
Domains:

Templates:

Name: High
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• FLOOD_RISK: High

---

ID: Medium
Name: Medium likelihood (1.0% Annual Chance)
Domains:

Templates:

Name: Medium
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• FLOOD_RISK: Medium

---

ID: Low
Name: Low likelihood (0.2% Annual Chance)
Domains:

Templates:

Name: Low
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• FLOOD_RISK: Low

---

ID: Very Low
Name: Very Low likelihood (0.05% Annual Chance)
Domains:

Templates:

Name: Very Low
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• FLOOD_RISK: Very Low

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/17/2024 7:28:32 AM

Schema Last Edit Date: 10/17/2024 7:28:32 AM

Data Last Edit Date: 10/17/2024 7:12:51 AM

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