AndreaBozzo/ceres-open-data-index huggingface dataset:
Burns Creek Flood Study

FCC has undertaken a number of recent mainstream flood studies, including:
<ul>
<li>Cabramatta Creek Flood Study</li>
<li>Prospect Creek Flood Study
*? Georges River (FCC section) Flood Study</li>
<li>Orphan School Creek, Green Valley Creek and Clear Paddock Creek Flood Study.</li>
</ul>

These studies provide accurate flood levels that are invaluable for planning development on, and
close to, floodplains. However, there are many other areas in Fairfield that are potentially flood
prone but have not been studied or mapped, including areas in the current study area. Those areas
in the study area, which have been previously assessed, were considered between 10 and 20 years
ago using different modelling techniques and to varying levels of detail. Hence, the present
understanding of flooding conditions in the current study area is not one that is fully integrated.

This current study, therefore, aims to determine the mainstream flooding conditions, including
flood levels, flow rates and flood risk, in the study area in an integrated manner, in line with the
previous studies recently undertaken for Prospect Creek, Cabramatta Creek and the Georges River.

Further, this study also intends to account for any physical changes within the catchment that have
occurred since the previous flood studies, which would contribute to changes in the design 100
year ARI flood levels. Subsequently, FCC intends to use the latest flood information from this
study to update the Section 149 Certificates for the flood affected properties within the study area.

As per the floodplain management framework set out in the Floodplain Development Manual 2005,
this Flood Study is part of a process that subsequently involves the undertaking of a Floodplain
Risk Management Study and development of a Floodplain Risk Management Plan. The Flood
Study will be used as the basis for developing a Floodplain Risk Management Study and Plan for
the Flood prone land within the study area, in which the end result of the process will be the
development of management measures so future flood risk can be managed, reduced or eliminated.

Tags: Burns Creek, hydraulic model, hydrologic model
Organization: Fairfield City Council
St Georges Basin Floodplain Risk Management Study

<strong>INTRODUCTION</strong>

St Georges Basin is a coastal lagoon within the Shoalhaven City Council area (Figure 1). The
Basin has a surface area of approximately 37 square kilometres discharging through the
Sussex Inlet Channel to the Pacific Ocean at Bherwerre Beach. The total catchment area to
the Pacific Ocean is approximately 327 square kilometres. The Basin itself therefore
represents approximately 11% of the total catchment.
A number of properties surrounding the Basin and its tributaries are very low lying and flooding
has caused damage in the past. Historical flood level data for the more recent significant flood
events of February 1971 and June 1991 were provided by many residents as part of the St
Georges Basin Flood Study (September 2001 - Reference 1).
In the last 30 years the land usage around the Basin has undergone significant changes, from
a predominantly rural community, to a community with significant areas of urbanisation. The
town of Sussex Inlet in particular has undergone massive changes, mainly due to the
development of the canal estates which commenced in 1971. There has been a significant
increase in population and a heightened awareness of environmental issues. These changes
have already affected the Basin and there is the potential for further changes to occur. In view
of these factors it is necessary to define the existing flood problem and carefully manage future
development on the floodplain.

Organization: Shoalhaven City Council
Wrights Creek Flood Study Update (2019)

This study updates the previous Wrights Creek Flood Study (Patterson Britton &amp; Partners, 2007) and provides Council with a suitable platform for undertaking the next steps in the Floodplain Risk Management Process. The XP-RAFTS hydrologic model developed in the 2007 Flood Study has been adopted for this study. A TUFLOW hydraulic model of the catchment has been established using up to date survey of the ground levels and culvert and bridge structures. The TUFLOW hydraulic model has been used to reproduce the historical flood behaviour from events in 1995 and 2002 and to define flood behaviour for a range of design events.
Actions undertaken as part of this flood study include:
• collection of additional survey,
• development of a TUFLOW hydraulic model,
• definition of the design flood behaviour,
• assessment of provisional hydraulic hazard,
• assessment of hydraulic categorization,
• assessment of the model sensitivity to parameter changes,
• assessment of climate change impacts on model results,
• assessment of sensitivity of model results to the new ARR 2016 design inputs,
• community consultation.

Tags: Port Macquarie, Wrights Creek, Yarranabee Creek
Organization: Port Macquarie-Hastings Council
Wollombi Floodplain Risk Management Study and Plan-Report

The Wollombi Flood Study Review and Model Upgrade completed in 2010 represents the initial stage
in the floodplain management process and establishes the basis for the current floodplain risk
management study.
The objectives of the Wollombi Floodplain Risk Management Study are to:
 Identify and assess measures for the mitigation of existing flood risk;
 Identify and assess planning and development controls to reduce future flood risks; and
 Present a recommended floodplain management plan that outlines the best possible measures to
reduce flood damages in the Wollombi locality.
This report documents the Floodplain Risk Management Study and presents a recommended
Floodplain Risk Management Plan for the Wollombi Village.

Tags: Congewai Creek, Floodplain Management, Wollombi, Wollombi Brook, Wollombi Valley
Organization: Cessnock City Council
Kangaroo Valley Floodplain Risk Management Study

<strong>1 Introduction</strong>

Cardno were commissioned by Shoalhaven City Council to undertake the Floodplain Risk Management Study and Plan
for the Kangaroo Valley catchment.
The study has been undertaken to define the existing flooding behaviour and associated hazards of the study area, and
to investigate possible mitigation options to reduce flood damage and risk. The tasks were undertaken alongside
community consultation to ensure that community concerns were addressed.
This report details the flood damages assessment, the environmental, social and policy review, and the investigations
undertaken into potential flood mitigation options. The findings of this report will be used to develop the Floodplain Risk
Management Plan.

Organization: Shoalhaven City Council
Brisbane Water Foreshore Flood Study

The main objective of this study (in two parts) has been to determine water levels in Brisbane Water for
the full range of flood and ocean events that can occur due to the various natural physical
processes, taking joint occurrence issues into account to some extent. The flooding
behaviour can be influenced, either separately, or by a combination of, catchment rainfall
runoff flooding, rainfall directly onto Brisbane Water, elevated ocean levels, local winds
and, to a minor extent, the condition of the ocean entrance channel near Ettalong.

The outcomes from this study include: -
<ul>
<li>Public Participation: Community consultation is highly important in the whole process
leading to the development of a sustainable floodplain risk management plan and is an
essential component of the flood study. An information leaflet and questionnaire were
prepared and delivered to residents, whose properties were considered to be lower than
2.5m AHD (see Figure 4.2) and potentially at risk of inundation.</li>
<li>Brisbane Water Design Foreshore Flood Levels: This Study has determined design still
water levels and flood extents for a full range of flood events for existing catchment
conditions. All contributing physical processes of wind, rain, waves and tide were
considered. Cardno Lawson Treloar, as part of the Brisbane Water Estuary Processes
Study, have set up and calibrated hydrologic and hydrodynamic models of the catchment
and waterway, respectively, as well as fine grid wave models of sub-regions of the
waterway. This calibration process involved some months of work and hence having these
models ‘ready-to-go’ helped the study schedule.</li>
<li>Hydraulic and Hazard Categorisation: To achieve effective and responsible floodplain
risk management, the Brisbane Water floodplain was divided into areas that reflect the
different hydraulic impacts of development activity on flood behaviour and the hazard
impact of flooding on development and people.</li>
<li>Floodplain Risk Management Measures: This study forms the basis for a future Brisbane
Water Foreshore Flood Risk Management Study and Plan, where detailed assessment of
flooding risk management measures and a damages assessment will be undertaken for all
urban settlements along the foreshore of Brisbane Water. Cardno Lawson Treloar have
undertaken many Floodplain Risk Management Plans and undertook this study keeping
those future needs in mind.</li>
</ul>

Tags: Brisbane Water
Organization: Central Coast Council
Great Mackerel Beach Floodplain Risk Management Study & Plan

Study area

As previously mentioned, Great Mackerel Beach (Figure 1) is a small coastal community on the western shore of Pittwater. The entrance system at Great Mackerel Beach is termed an ICOLL (Intermittent Open and Closed Lake and Lagoon) as the entrance to the lagoon is periodically closed. Only a small portion of the catchment in the lower valley has been developed. The community consists of only three streets (with approximately 130 properties) and no vehicular traffic. Ross Smith Parade is in the form of a footpath along the Pittwater foreshore, while Monash Avenue and Diggers Crescent are wide grassed areas that provide access to properties.

The upper catchment of Great Mackerel Creek is characterised by steep slopes with an incised creek valley, which changes to a flat floodplain area prior to the outlet into Pittwater. Great Mackerel Beach (approximately 650 m long and crescent shaped) is enclosed between two high headlands. The main flow path through Great Mackerel Beach is Great Mackerel Creek itself, which discharges into Pittwater via a berm at the northern end of the beach (Photos 1 and 2). The creek forms a small lagoon at the northern end of the beach (Photo 3), fed by an intermittent stream which rises to the plateau of the Lambert Peninsula. The lagoon is often open to tidal action and supports a shallow nearshore sandbar (or delta). The state of the entrance (whether open or closed) during a flood plays a significant part in the resulting flood levels. A brief overview of the history of the entrance is provided in Section 4.3.2.

The study area covers only those areas in the community affected by mainstream flooding (Figure 3). This includes 116 houses (on 120 residential lots) which have some flood-affectation in a Probable Maximum Flood (PMF).

Report

The report contains study area, proposed measures in order of priority, the community consultation process, the existing flood environment, the cost of flooding, floodplain risk management measures as will as climate change implications and adaptive strategies.

Tags: Great Mackerel Beach
Organization: Northern Beaches Council
Clarence Town - Flood Study Inc Appendix and Figures

The objective of the study was to undertake a detailed flood study of the Clarence Town catchment
and establish models as necessary for accurate flood level prediction. Central to this was the
development of a two-dimensional hydraulic model of the floodplain.
In completing the flood study, the following activities were undertaken:
• Collation of database of historical flood information for the Clarence Town catchment;
• Acquisition of topographical data for the catchment including cross section and hydraulic
structure survey;
• Consultation with the community to acquire historical flood information and liaison in regard to
flooding concerns/perceptions and future floodplain management activities;
• Development of a hydraulic model (using TUFLOW software) to simulate flood behaviour in the
catchment;
• Calibration of the developed models using the June 2007, February 2009 and February 2011
flood events;
• Prediction of design flood conditions in the catchment using the calibrated models; and
• Production of design flood mapping series.
A good model calibration and validation was achieved with the available data, confirming the
appropriateness of the model for design flood simulation.
The local catchment flooding is typically characterised by a series of well-defined overland flow paths
that feed the main Town Creek channel prior to discharge to the Williams River. Given the relatively
small size of the contributing catchments, extensive flood inundation of property is somewhat limited.
Only three existing properties (all commercial premises) have been identified as at potential risk of
above floor flooding for events up to the 1% AEP flood magnitude.
The majority of the natural flood flow paths are through private land. In most part, development on
these lots has been located a sufficient distance from the natural drainage lines to limit potential for
building inundation.
The lower reaches of the Town Creek catchment are dominated by Williams River flooding. Typically
downstream of approximately the IGA culvert, the Williams River 1% AEP design flood results in
higher flood conditions than corresponding 1% AEP local catchment event. Accordingly, the Williams
River design flood conditions established by BMT WBM (2009) should be applied for future flood
planning and development control in these lower reaches.

Tags: Clarence Town
Organization: Dungog Shire Council
Currambene Creek and Moona Moona Creek Flood Studies

<strong>1.3 Overview of Report</strong>

This Report (Volume 1) summarises the investigations and presents plans showing water surface
profiles and the indicative extents of flooding. The Report is supported by three Appendices,
which provide additional details on flooding patterns and are bound in Volume 2.
Section 2 of the Report contains background information including a description of the
catchments, a review of the data base available for the study and a discussion on the history of
flooding in the two catchments. This led to the selection of the historic floods for calibration and
testing of the RORB hydrologic model of Currambene Creek.
Streamflows recorded at The Falls gauging station, together with pluviographic data recorded at
the RAN Air Station at HMAS Albatross and daily rainfall data were used for this purpose.
Appendix A provides further details of the calibration process.
Section 3 deals with the derivation of design runoff hydrographs from the study catchments. The
RORB runoff-routing program was adopted for this study. Models of the catchments of
Currambene and Moona Moona Creeks were developed.
This step involved the determination of design storm rainfall depths over the catchments for a
range of storm durations, and conversion of the rainfall hyetographs to discharge hydrographs.
Further details of this phase of the investigation are presented in Appendix B.
Section 4 deals with the development of the hydraulic models of the main streams and their
estuarine surrounds. The unsteady flow version of the HEC-RAS software was used for this
purpose. There were no historic flood level data available for calibration of the hydraulic models.
Accordingly, selection of model parameters required a detailed review of the engineering
literature and previous studies of a similar nature undertaken by the Study Team, supplemented
by sensitivity analysis. The results of model testing are presented in the first part of Appendix C.
Section 5 details the results of the hydraulic modelling of the design floods using HEC-RAS.
Results are presented as water surface profiles and plans showing indicative extents of
inundation. Appendix C presents further details on the derivation of design flood information and
contains diagrams showing zones of provisional high and low hazard on the floodplain for
selected design floods events, categorisation of the floodplain into floodway and flood storage
areas and tabulations of peak levels and flow velocities at each cross section in the hydraulic
models.
Section 6 summarises the flood study investigations and identifies several flood related issues
on the tributaries of Currambene Creek which will require further study during the Floodplain Risk
Management Study and Plan.
Section 7 contains a list of References.

Organization: Shoalhaven City Council
Tarcutta, Ladysmith and Uranquinty Flood Studies - Data Collection Report

Complete report

Tags: Centenary Drive, Hambleson Levee, Hume Highway, Humula, Keajura Creek, Kyeamba Creek, Oberne Creek, Old Tarcutta Inn Levee, Tarcutta Creek, Tarcutta Levee, Umbango Creek
Organization: Wagga Wagga City Council
Ryan Place Overland Flood Study

The catchment area to Old Pittwater Road is 11.9 hectares (Figure 1). Downstream of Old Pittwater
Road runoff flows through the Warringah Mall Shopping Centre and into Brookvale Creek through
Warringah Golf Course. Ultimately the runoff enters Manly Lagoon and discharges into the Pacific
Ocean. The catchment area to Old Pittwater Road is entirely comprised of residential urban
development, there are no non-residential developments. The catchment has two main tributary
branches entering from Ryan Place which join upstream of Brookvale Avenue within No. 21 Ryan
Place.

In view of the increasing urban development and the need to accurately define the nature and extent
of the flood problem, Warringah Council engaged Webb, McKeown &amp; Associates to undertake an
Overland Flood Study. The term overland has been used to signify that flooding results from runoff
exceeding the capacity of the piped drainage system and/or is of sufficient magnitude to represent a
hazard, as opposed to flooding from the overtopping of a natural or artificial defined creek system.

The only area where there is some form of defined creek system is immediately downstream of Ryan
Place. The remainder of the natural system has been destroyed over time by urban development.
Today overland flow resulting from heavy rainfall does not generally follow a defined path but travels
between buildings, under or through fences, along driveways, roads, etc., until it reaches Old Pittwater
Road. The route may vary depending upon the size of the rainfall event and may change as residents
construct fences or buildings.

The primary objectives of this Overland Flood Study are:
<ul>
<li>to define the flood behaviour of the catchment by quantifying flood levels, velocities and
flows for a range of design flood events under existing catchment conditions,</li>
<li>to assess the hydraulic categories and undertake provisional flood hazard mapping in
accordance with the NSW Floodplain Management Manual (2001) (Reference 5),</li>
<li>to formulate a suitable hydraulic model that can be used in a subsequent Floodplain Risk
Management Study,</li>
<li>to provide a preliminary assessment of floodplain management measures.</li>
</ul>

<strong>Flood Problem Areas:</strong> The study has indicated that Brookvale Avenue and Old Pittwater Road will
be crossed by floodwaters in the 100y ARI event. The yards of many properties along these roads
will also be inundated.

<strong>Outcomes:</strong> The main outcomes of this study are as follows:
<ul>
<li>full documentation of the methodology and results,</li>
<li>preparation of flood contour, hazard and extent maps for the catchment,</li>
<li>establishment of a MIKE-Storm model which will form the basis for a subsequent Floodplain
Risk Management Study and Plan,</li>
<li>preliminary review of possible floodplain management/mitigation measures.</li>
</ul>

Tags: Brookvale Creek, Ryan Place, Warringah, hydraulic model, hydrologic model
Organization: Northern Beaches Council
Wagga Wagga - Floodplain Risk Management Plan - Report

Complete report, including figures and appendix.

Tags: Eunony Road, Gobbagombalin, Gumly Gumly, Hampden Bridge, Kallewanda, Malebo Range, Murrumbidgee River, Sturt Highway, Wagga Wagga, Wiradjuri Bridge
Organization: Wagga Wagga City Council
Bungambrawatha Creek, Lavington, South Albury and West Albury Flood Study - Report

Volume 1 - Final report
Volume 2(a &amp; b) - Figures

Tags: Albury, Black Springs Creek, Bungambrawatha Creek, Burrows Road, Hamilton Valley Creek, Kremur Street, Mudges Canal, Norris Park Oval, Oliver Street, Ryan Road, Union Road
Organization: Albury City Council
Griffith_Aerodrome Overland Flow Flood Study

INTRODUCTION

In recent years, small duration heavy intensity rainfall events associated with thunder  storms have shown that the Griffith Aerodrome and associated infrastructure are exposed to some potentially destructive, and certainly disruptive, flood risk. In order to quantify the flood risk and then to propose measures which may protect the aerodrome and associated facilities  in the  event of a flood, Griffith City Council (GCC) have appointed WMAwater  to carry  out a flood  study. The Department of Environment, Climate Change and Water (DECCW) is providing financial assistance towards the flood study.

The main objective of this study is to:
<ul>
<li>Define the overland flow flood behaviour within the aerodrome catchment  (refer  to  Figure 1 for the location of the study area). The principle focus is on those buildings that adjoin the aerodrome facility, i.e. hangers and administrative buildings, as well as the runway itself, and</li>
<li>Preliminary assessment of mitigation measures.</li>
</ul>

The study seeks to establish suitable hydrologic and hydraulic model tools, demonstrate their capacity to emulate local flood behaviour via calibration/validation (as data allows)  and then  apply these tools to establish the existing flood risk for a range of  design  flood  event  probabilities in conjunction with a range of event durations. Following design flood modelling for  the existing conditions, a damages assessment for the  aerodrome  will  be  carried  out.  The above work will establish the flood liability of the aerodrome under exisiting   conditions.

The model will then be utilised to test preliminary mitigation measures. Mitigation measures will seek to reduce the degree of inundation of the aerodrome and associated infrastructure and therefore reduce the flood damages associated with an extreme event. Mitigation options could potentially be quite varied however two that spring to mind in this case are detaining flood water upstream of the aerodrome or diverting it prior to its entry into the aerodrome area.

This report details the investigations, results and findings of the Flood Study. The key elements of which include:
* a summary of available data;
* model development;
* calibration of the hydraulic  model;
* definition of the design flood behaviour for existing conditions through the analysis and interpretation of model results; and
* testing limited mitigation options.

Tags: Airport, Griffith Airport, Old Aerodrome Road, Remembrance Driveway
Organization: Griffith City Council