Yishun Dam

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Yishun Dam
Singapore location map (main island).svg
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Location of Yishun Dam in Singapore
Official nameYishun Dam
Country Singapore
Location Yishun
Coordinates 1°25′26″N103°51′37″E / 1.42387°N 103.86022°E / 1.42387; 103.86022
StatusOperational
Construction began1983;41 years ago (1983)
Opening date1984;40 years ago (1984)
Construction costS$60.8 million
Owner(s) Public Utilities Board
Dam and spillways
Type of dam Earth fill dam
Length975m
Reservoir
Creates Lower Seletar Reservoir
Catchment area 352 ha

Yishun Dam (formerly known as Sungei Seletar Dam) is a dam in northern Singapore, built in 1984 as part of the Sungei Seletar and Bedok water scheme and forms the Lower Seletar Reservoir.

Contents

History

In 1980, a study was conducted for a scheme to build two reservoirs in Sungei Seletar (now known as Lower Seletar Reservoir) and Bedok. [1]

In 1983, a S$60.8 million contract was awarded to Loh & Loh Construction Pte. Ltd. from the Public Utilities Board (Singapore) for the construction of the dam. [2]

The dam was completed on 28 April 1984, [3] with dump trucks and bulldozers pushing sand to fill the last gap of the dam. The dual carriageway opened later in the year to motor traffic. [4]

In May 2024, the Land Transport Authority announced plans to expand the road junctions at both sides of the dam, [5] in response to concerns by nearby residents about the heavy traffic in the area during morning and evening peak hours. A new park connector will also be built along the dam, providing a dedicated cycling path for cyclists.

Design

The dam stretches 975m across the mouth of Sungei Seletar, and incorporates a spillway system and slurry wall that controls the water flow and prevents seawater from the Straits of Johor from flowing into the reservoir. [2] On top of the dam, a dual-carriageway links Yishun New Town to Seletar, providing access to Seletar Airport, Yio Chu Kang Road and Jalan Kayu [4]

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References

  1. "STUDY OF $110m DOUBLE RESERVOIR SCHEME". The Straits Times . 28 July 1980. p. 7. Retrieved 21 May 2024.
  2. 1 2 "Loh & Loh wins $60m contract to build dam". The Straits Times . 11 January 1983. p. 17. Retrieved 21 May 2024.
  3. "Another water-hole". The Straits Times . 29 April 1984. p. 16. Retrieved 21 May 2024.
  4. 1 2 Lye, Yin Fong (5 March 1984). "Soon, a drive on a dam to get to Yio Chu Kang". Singapore Monitor. p. 5. Retrieved 21 May 2024.
  5. Soh, Therese; Gene, Ng Keng (2024-05-20). "LTA carrying out junction improvement works to ease traffic congestion around Yishun Dam". The Straits Times . ISSN   0585-3923 . Retrieved 2024-05-21.