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Storm and flood at Norman Creek, Brisbane (Australia) on 7 November 2004


Description
On 7 November 2004, the storm occurred as a series of heavy rainfalls through the morning and early afternoon. The video described the flood flow in the small catchment of Norman Creek, in the city of Brisbane, Queensland, Australia. Hubert CHANSON inspected Norman Creek between 12:00 noon and 13:50. He noted that the flow was larger than that of an earlier event on 31 December 2001, but less than the design flow. The flow was probably about 80-100 m3/s on 7 November 2004. Cornwall street was not overtopped, but the culvert obvert was submerged. There was a relatively strong hydraulic jump in the inlet of Ridge St culvert, while the Minimum Energy Loss waterway beneath the freeway experienced some small standing waves throughout the entire waterway.
In dry weather, Norman Creek is almost dry, and the flood event was typical of a subtropical, intense storm with rapid flow concentration.
The Minimum Energy Loss structures and the waterway in Norman Creek were built in 1975 as part of the construction of the South-East Freeway and the re-alignment of Norman Creek. These are described in [1] and [2]. Their historical development are detailed in [4] and [5]. Their operation and operational record are discussed in [3]

Autor
Hubert Chanson
Date
2004
Copyright
Hubert Chanson




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This web site was launched by Prof. Michele Mossa of the Polytechnic University of Bari (Italy) with the initial support of Fondazione Caripuglia, Bari, Italy for the Research Project LIC-MON of 2003 and of the Project IMCA (Integrated Monitoring of Coastal Areas) financed by MIUR PON D.M. 593/00. Later, the initiative was supported with other Prof. Michele Mossa’s funds, most recently provided by the RITMARE Project.


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