This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. 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).

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in June 2013, provides an indication of the likelihood of a flood occurring from storm tide inside the Brisbane City Council local government area. This layer contributes to the storm tide Flood Awareness Map. Storm tide flooding happens when a storm surge creates higher than normal sea levels. A storm surge can occur due to a low atmospheric pressure meteorological system and/or strong on-shore winds force sea levels to rise above normal levels among other reasons. Flooding can also occur from king tides. King tides occur throughout the year and are higher than normal tides. Low lying parts of Brisbane and the Bayside suburbs may experience storm tide flooding. Tide affected areas of the river, tidal creeks and other waterways may also be affected. There are four different storm tide flooding likelihood areas in Flood Awareness Map, namely High, Medium, Low and very low. The storm tide High likelihood layer consists of the current 5% Annual Exceedance Probability (AEP) (20 year Average Recurrence Interval (ARI)) (2.1mAHD) storm tide flood extent. The storm tide Medium likelihood layer consists of the current 1% AEP / 100 year ARI (2.5mAHD) storm tide flood extent (outside high likelihood area). The storm tide Low likelihood layer consists of the 0.2% AEP / 500 year ARI (2.85mAHD) storm tide flood extent (outside high and medium likelihood areas). The storm tide Very Low likelihood consists of the 0.05% AEP / 2000 year ARI (3.2mAHD) storm tide flood extent (outside high, medium and low likelihood areas).

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in June 2013, provides an indication of the likelihood of a flood occurring from one or more sources: creek, river, and storm tide inside the Brisbane City Council local government area. This layer contributes to the overall Flood Awareness Mapping for Brisbane City Council. Brisbane City Council has developed the Flood Awareness Maps and adopted the terms ‘high’, ‘medium’, ‘low’ and ‘very low’ likelihood areas to help residents and businesses better understand the likelihood of a flood affecting their property. The Flood Awareness Maps are an awareness tool and the maps do not provide information about the depth or speed of flood water. Information on potential flood levels for a property can be found in the FloodWise Property Report online. The Flood Awareness Maps are an awareness tool to provide an indication of the likelihood of a flood occurring from one or more sources: creek, river, overland flow and storm tide. The maps do not provide information about the depth or speed of flood water. Use the FloodWise Property Report for information about flood levels specific to your property. Many properties within the high and medium flood likelihood were affected by flooding in the 1974 and 2011 Brisbane River floods. Residents in the low and very low flood likelihood areas should still be aware of their risk of flooding and understand how they, as well as others in the area, may be affected. High likelihood area Flooding is almost certain to occur in a high likelihood area. Residents and businesses are strongly advised to learn about the flood likelihood for their property so they can be prepared to help minimise the impact on their home, business and family. Medium likelihood area Flooding is likely to occur in a medium likelihood area. Residents and businesses are advised to learn about the flood likelihood for their property so they can be prepared to help minimise the impact on their home, business and family. Low likelihood area Low flood likelihood areas may experience flooding in a rare flood event. Residents and businesses should consider how flooding may affect their local area, suburb or community. Flooding is unlikely in a low flood likelihood area but it may still occur. Very low likelihood area Very low likelihood areas are unlikely to flood except in a very rare or extreme flood event. Residents and businesses should consider how flooding may affect their local suburb, area or community. Flooding is very unlikely in a very low flood likelihood area, but may still occur. Brisbane City Council is working hard to reduce the impact of flooding but we all have a responsibility to understand our flood risk and be better prepared to minimise the impact of flooding on our homes, property and businesses. For further information please refer to Council's website.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in June 2013, provides an indication of the likelihood of a flood occurring from overland flow inside the Brisbane City Council local government area. This layer contributes to the overall Flood Awareness Mapping for Brisbane City Council. Overland flow is excess rainfall that runs across the land after rain before it enters an underground drainage system or a creek/waterway. Overland flow can also rise to the surface naturally from underground or also as a result of creek/waterway bank failure. Overland flow flooding tends to affect localised areas rather than the whole city at once. Overland flow can probably be considered the most frequent type of flooding in Brisbane. Overland flow tends to occur during high rainfall events. It travels across the land following low-lying, natural drainage paths. Such flooding may occur when underground drainage system exceeds capacity. Overland flow flooding can be unpredictable and occur without warning. You can identify overland flow by looking at how water may flow across the land around your property. Consider these natural flows when you are looking to renovate, build a fence or put in a shed. There are three different overland flow flooding impact areas in Flood Awareness Map, namely High, Medium and Low. The overland flow High impact layer consists of H5 and H6* hazard zones during a 5% Annual Exceedance Probability (AEP) (20 year Average Recurrence Interval (ARI)) flood event. The flood data was sourced from the Citywide Creek and Overland Flow Path mapping study (GHD, 2017). The overland flow Medium impact layer consists of H3, H4, H5 and H6* hazard zones during a 2% AEP (50 year ARI) flood event (outside high impact area). The flood data was sourced from the Citywide Creek and Overland Flow Path mapping study (GHD, 2017). The overland flow Low impact layer consists of H2, H3, H4, H5 and H6* hazard zones during a 1% AEP (100 year ARI) flood event (outside high and medium impact areas). The flood data was sourced from the Citywide Creek and Overland Flow Path mapping study (GHD, 2017). * Hazard ranges from H1 to H6 and is based on the flood hazard, depth and velocity vulnerability thresholds. For more information, refer to Australian Disaster Resilience Guideline 7-3 Flood Hazard (AIDR 2017). Due to a system issue, this data is not displayed here. To access the data, please use the ArcGIS Hub Datasets link in the Data and resources section on this page.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in June 2013, represents the areas inside the Brisbane City Council local government area where Flood Awareness Mapping within those areas should be reviewed or further investigated. This layer contributes to the overall Flood Awareness Mapping for Brisbane City Council.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This table includes the report metrics that are used by the Flood Awareness Map solution to generate a report for each parcel (property lot) and property holding in Brisbane City Council local government area. It was produced by running a series on intersections and rules on each property lot in the Brisbane City Council local government area with flood mapping layers and recording the derived metrics. Descriptions for each metric in this dataset and definitions, can be found in the Brisbane City Council dataset called Flood — Awareness — Property Parcel Metrics — reference. NOTE: This information is not intended for use for due diligence and/or conveyancing matters. To obtain planning information for due diligence and conveyancing matters, an application for a planning and development certificate should be lodged with Brisbane City Council. Please refer to the Brisbane City Council website.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in September 2022, represents the Brisbane River, Creek and storm tide 1% AEP flood planning extent for areas inside the Brisbane City Council local government area. The 1% flood planning extent is provided in Council’s Floodwise Property Report.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. This dataset, created in June 2013, provides an indication of areas subject to overland flow flooding inside the Brisbane City Council local government area. The overall overland flow layer consists of the 1% Annual Exceedance Probability (AEP) (100 year Average Recurrence Interval (ARI)) flood extent sourced from the Citywide Creek and Overland Flow Path mapping study (GHD, 2017). High impact area: In high impact areas, overland flow is almost certain to occur during a single lifetime (70 years). An event of this size or larger has a 5% chance of occurring in any year. The overland flow is generally unsafe for people, vehicles and buildings. Medium impact area: For the majority of medium impact areas, overland flow is very likely to occur during a single lifetime (70 years). An event of this size or larger has a 2% chance of occurring in any year. The overland flow is generally unsafe for people, vehicles and buildings, however these hazards are experienced less frequently than in high impact areas. Low impact area: For the majority of low impact areas, overland flow is likely to occur during a single lifetime (70 years). An event of this size or larger has a 1% chance of occurring in any year. The overland flow is generally safe for people, vehicles and buildings; however, certain areas can experience greater hazards. link in the Data and resources section on this page. Due to a system issue, this data is not displayed here. To access the data, please use the ArcGIS Hub Datasets link in the Data and resources section on this page.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. Brisbane City Council Albany Creek Flood Study. This dataset contains reports, data and metadata used in the flood study for the existing and ultimate floodplain condition scenarios. Council is committed to ensuring we have the latest flood modelling data to help manage flood risk in Brisbane. Flood studies provide Council with technical data to inform policy and for managing flooding within the Brisbane River and local creek catchments. For specifics details on how the study was conducted or areas it covers, and before using the data please read the following flood study reports: • Albany Creek Flood Study - Volume 1 of 2 • Albany Creek Flood Study - Volume 2 of 2 The data on the table tab is the metadata relating to the data used for flood modelling in the Brisbane City Council Albany Creek flood study. The metadata covers all resources in this dataset as well as the flood study reports provided as links in the dataset description. More information on Flood studies and how this information is used can be found on the Brisbane City Council Website. The image below indicates the locality of the catchment area of the flood study and creek centreline of the model.

This dataset is available on Brisbane City Council’s open data website – data.brisbane.qld.gov.au. The site provides additional features for viewing and interacting with the data and for downloading the data in various formats. Brisbane City Council Jindalee Creek Flood Study. This dataset contains reports, data and metadata used in the flood study for the existing and ultimate floodplain condition scenarios. Council is committed to ensuring we have the latest flood modelling data to help manage flood risk in Brisbane. Flood studies provide Council with technical data to inform policy and for managing flooding within the Brisbane River and local creek catchments. For specifics details on how the study was conducted or areas it covers, and before using the data please read the following flood study reports: • Jindalee Creek Flood Study - Volume 1 of 2 • Jindalee Creek Flood Study - Volume 2 of 2 The data on the table tab is the metadata relating to the data used for flood modelling in the Brisbane City Council Jindalee Creek flood study. The metadata covers all resources in this dataset as well as the flood study reports provided as links in the dataset description. More information on Flood studies and how this information is used can be found on the Brisbane City Council Website. The image below indicates the locality of the catchment area of the flood study and creek centreline of the model.