Dungog Flood, 20-21 April, 2015: Post-flood Damage Survey
Dungog is a country town of approximately 2,100 people (2011 census) located at the junction of Myall Creek and the Williams River in the Hunter Valley, NSW. It was severely impacted on the 20th and 21st of April, 2015 by flooding in both of these watercourses. This report presents the findings of a short post-disaster damage survey undertaken by Geoscience Australia on 13 May, 2015. It includes an analysis of the survey data and makes comparisons with existing models for building damage in high velocity flow regimes. Comparisons were made with the most current flood study for the town, both in depth of inundation and predicted flow velocities.
The town is situated on undulating topography which rises from quite flat countryside close to Myall Creek and the Williams River to become quite steep terrain at the southern end of the town. Like many Australian country towns, Dungog's building stock consists of a core of older buildings, many predating World War 1, surrounded by residential buildings of all ages up to the present day. Most commercial retail buildings are located on Dowling Street, the main north-south thoroughfare, and are of unreinforced masonry construction. Light industrial buildings are generally steel portal frame construction with a variety of cladding materials. Some light industrial buildings are located on low terrain around the north end of town while the more modern light industrial buildings are located in a new part of town at the north-west corner of the urban area. There were 1015 private residential dwellings in Dungog recorded in the 2011 census. Residential buildings range from older, clad timber frame houses on low stumps to more modern construction styles such as brick veneer and cavity brick houses with slab on grade foundations.
The floodwaters damaged approximately 46 houses and directly impacted five businesses. Six of the impacted houses exhibited velocity-related damage for which video footage taken at the time of the flood was available and enabled an estimate of water velocity to be made. Hence, although only a small survey was undertaken, the flood afforded the opportunity to gather some data on velocity related flood damage to Australian house types for use as validation points on velocity-depth fragility curves for one Australian house type. Typically such validation data is difficult to obtain due to paucity of information relating to estimates of water velocity accompanying building loss.
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Identification info
- Date (Publication)
- 2015-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/83928
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2015.021
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Role Organisation / Individual Name Details Publisher Geoscience Australia
Canberra Author Wehner, M.
1 Author Maqsood, S.T.
2
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Record
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2015/021
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Role Organisation / Individual Name Details Custodian CSEMD
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
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- Geoscientific information
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- As needed
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Product data repository: Various Formats
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
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GA Publication
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Record
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Engineering
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Published_External
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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Australian Government Security ClassificationSystem
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- 2018-11-01T00:00:00
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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Download the Record (pdf)
Download the Record (pdf)
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pdf
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Download the Record (docx)
Download the Record (docx)
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docx
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Unknown
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GA Publication
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Legacy product, source data not available.
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Legacy product, source data not available.
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
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- Unclassified
Metadata
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urn:uuid/1c9ef373-6ff7-f964-e053-12a3070a358d
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GeoNetwork UUID
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
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GA Record
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Geoscience Australia - short identifier for metadata record with
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- Citation identifier
- eCatId/83928
- Date info (Revision)
- 2018-04-20T06:03:52
- Date info (Creation)
- 2015-08-06T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
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Version 2.0, September 2018
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- https://pid.geoscience.gov.au/dataset/ga/122551