Hydrodynamic analysis of the proposed flood bypass channel upstream of Kuching city
Sarawak River had experienced several disastrous flood events over the past 50 years, with the worst being in 1963, followed by February 2003, January 2004 and January 2009 flood. A flood bypass channel had been suggested as a flood mitigation measure to reduce the flooding effects along the Sara...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, UNIMAS
2009
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| Online Access: | http://ir.unimas.my/id/eprint/4545/ http://ir.unimas.my/id/eprint/4545/1/HYDRODYNAMIC%20ANALYSIS%20OF%20THE%20PROPOSED%20FLOOD%20BYPASS%20%2824pgs%29.pdf http://ir.unimas.my/id/eprint/4545/8/Norliza%20Binti%20Asian.pdf |
| Summary: | Sarawak River had experienced several disastrous flood events over the past 50
years, with the worst being in 1963, followed by February 2003, January 2004 and
January 2009 flood. A flood bypass channel had been suggested as a flood mitigation
measure to reduce the flooding effects along the Sarawak River. The proposed flood
bypass channel is 8 km long with 250 m base width man-made channel starting from
Kampong Paroh to divert a significant portion of flood waters from Sarawak River
away from Kuching city to Batang Salak. The main purpose of this project was to
review the flooding problems in flood-prone areas of Sarawak River basin and to
carry out hydrodynamic analysis on the Sarawak River together with the impacts of
the upcoming flood bypass channel. Sarawak River and its floodplains were modeled
using one-dimensional hydrodynamic modeling approach, by utilising the
Wallingford Software model - InfoWorks River Simulation (RS), coupled with its
embedded GIS applications, to obtain the flood hydrographs of the river and its
floodplains in extreme flooding condition of January 2004 flood. The simulated
results of January 2004 flood obtained showed that the flood bypass channel had
been diverting significant portion of flood waters from Sarawak River. Results taken
from Batu Kawa showed an average water level reduction of 48.45% which reflects
the effectiveness of the flood bypass channel. |
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