Name: FPM Location of Cross Sections (DWER-022)

Display Field: status

Type: Feature Layer

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Description: The Department of Water and Environmental Regulation produces floodplain mapping of rivers and major watercourses and provides floodplain development advice to ensure that proposed floodplain development has adequate flood protection and does not impact on the existing flood regime of the area. This advice is related to major river flooding only. Other issues, such as stormwater drainage and envirionmental and ecological considerations are not addressed. This dataset contains the location of cross sections lines, indicating modelled / surveyed cross sections of the river channel and floodplain. The cross sections are labelled using chainage, which is generally defined as the distance from the DWERnstream start of a flood study traversing up the river. The cross sections are defined perpindicular to the flow direction and illustrate how the relevant flood levels are to be applied across the floodplain. Each cross section has an associated flood level listed in the attribute fields as follows: FLDLVL_10 (1 in 10 (10%) AEP flood event) FLDLVL_20 (1 in 20 (5%) AEP flood event) FLDLVL_25 (1 in 25 (4%) AEP flood event) FLDLVL_50 (1 in 50 (2%) AEP flood event) FLDLVL_100 (1 in 100 (1%) AEP flood event) FLDLVL_DFE (Designated flood event) FLDLVL_200 (1 in 200 (0.5%) AEP flood event) FLDLVL_500 (1 in 500 (0.2%) AEP flood event) FLDLVL_MCC (Maximum channel capacity) FLDLVL_PMF (Probable maximum flood event) Note: To see the full scope of the floodplain mapping, 12 dataset layers are required to be loaded in the following order: FLOODPLAIN DATASET LAYERS: FPM Flood Level Points (m AHD) FPM Flood Level Contours (m AHD) FPM 1 in 100 (1%) AEP Floodway and Flood Fringe Line FPM Extent of Flooding FPM Levee Banks FPM Location of Cross Sections FPM 1 in 100 (1%) AEP Floodplain Development Control Area FPM Map Index FPM Bridges FPM Special Development Condition Area FPM 1 in 100 (1%) AEP Floodway and Flood Fringe Area FPM Floodplain Area License: Creative Commons Non-Commmercial (Any) Tags: DWER, Flood, Hazards, Water Contact: gerard.paul@dwer.wa.gov.au

Copyright Text:

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XMin: 114.62034566700004
YMin: -35.00868402499998
XMax: 128.24030115200003
YMax: -17.00896924899996
Spatial Reference: 7844  (7844)

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Type ID Field: null

Fields:

• objectid ( type: esriFieldTypeOID, alias: OBJECTID )
• fldlvl_5 ( type: esriFieldTypeDouble, alias: 1 in 5 (20%) AEP flood level )
• fldlvl_10 ( type: esriFieldTypeDouble, alias: 1 in 10 (10%) AEP flood level )
• fldlvl_20 ( type: esriFieldTypeDouble, alias: 1 in 20 (5%) AEP flood level )
• fldlvl_25 ( type: esriFieldTypeDouble, alias: 1 in 25 (4%) AEP flood level )
• fldlvl_50 ( type: esriFieldTypeDouble, alias: 1 in 50 (2%) AEP flood level )
• fldlvl_100 ( type: esriFieldTypeDouble, alias: 1 in 100 (1%) AEP flood level )
• fldlvl_dfe ( type: esriFieldTypeDouble, alias: Designated flood event flood level )
• fldlvl_200 ( type: esriFieldTypeDouble, alias: 1 in 200 (0.5%) AEP flood level )
• fldlvl_500 ( type: esriFieldTypeDouble, alias: 1 in 500 (0.2%) AEP flood level )
• fldlvl_1000 ( type: esriFieldTypeDouble, alias: 1 in 1000 (0.1%) AEP flood level )
• fldlvl_2000 ( type: esriFieldTypeDouble, alias: 1 in 2000 (0.05%) AEP flood level )
• fldlvl_5000 ( type: esriFieldTypeDouble, alias: 1 in 5000 (0.02%) AEP flood level )
• fldlvl_mcc ( type: esriFieldTypeDouble, alias: Maximum channel capacity flood level )
• fldlvl_pmf ( type: esriFieldTypeDouble, alias: Probable maximum flood level )
• trv_dist_m ( type: esriFieldTypeDouble, alias: TRV_DIST_M )
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