Investigative modelling of the flood bypass channel in Kuching, Sarawak, by assessing its impact on the inundations of Kuching-Batu Kawa-Bau Expressway
Flood risks not only include loss of human lives and properties, but also the transportation and communication. One major road in Kuching, the Kuching-Batu Kawa-Bau Expressway is often flooded and interrupted by floodwaters from Sarawak River. The Sarawak State Government had announced to build a fl...
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| Main Authors: | , , , |
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| Format: | E-Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2012
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/558/1/Investigative%20modelling%20of%20the%20flood%20bypass%20channel%20in%20Kuching-Batu%20Kawa-Bau%20Expressway.pdf http://ir.unimas.my/id/eprint/558/ |
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| Summary: | Flood risks not only include loss of human lives and properties, but also the transportation and communication. One major road in Kuching, the Kuching-Batu Kawa-Bau Expressway is often flooded and interrupted by floodwaters from Sarawak River. The Sarawak State Government had announced to build a flood bypass channel in Sarawak River to mitigate flood under the Ninth Malaysian Plan. This paper is a study on the effects of the structure in the flooding of the mentioned road stretch. The January 2004 event which is locally known as a 100-year flood, was run through a developed river model incorporated with the bypass facilities. The model had indicated a reduction of 53% of flooded road. Similarly, modelling of 10 and 50-year design floods had predicted over 50% of reduction. The bypass channel was said to be able to alleviate the flooding on the major road stretch. |
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