ABSTRACT
The Bukit Timah Canal is a major watercourse in Singapore, originating near the highest point on Singapore Island through low-lying central business areas of the city. The Bukit Timah basin has an area of 2620 and lies within the core urban area of Singapore. As the upstream areas were urbanized, the flooding problems along the main stream of the Bukit Timah Canal became quite severe. The objectives of the approach that is used are to account for the important timing issues that become critical for complex drainage systems such as those in the Bukit Timah and Kallang Basins. In 1982, Camp Dresser & McKee International, Inc. was retained to conduct a computer simulation hydrologie analysis of the area, and to write an evaluation report. The analysis indicates that flood stages in the upper portions of the diversion canal are not very sensitive to diversion canal size alone because of outlet conditionsat its junction with the Kallang River.
