Lower Pierce Reservoir Heritage Trail Marker - Old Upper Thomson Rd

The Commemorative Stone of Kalang River Reservoir The Kalang (old spelling of “Kallang”) River Reservoir was officially opened on 26 March 1912 by then Governor John Anderson. For the event, a commemorative stone was specially imported from Aswan, Egypt, and laid at the reservoir. Lower Peirce Reservoir, officially opened on 26 March 1912, is the second-oldest impounding reservoir in Singapore. Built at the lower portion of Kallang River in 1910, the reservoir was originally known as Kalang (Kallang) River Reservoir. A decade later, in 1922, the reservoir was renamed Peirce Reservoir in honour of the service of Robert Peirce, the municipal engineer who served in the position from 1901 to 1916. In 1970, the Public Utilities Board engaged Binnie & Partners (Singapore) to conduct feasibility studies for the construction of a new reservoir in the vicinity of Peirce Reservoir as well as to implement the project. The site was found to be suitable and construction started in May 1972. The works included the building of a 30-metre-high, 350-metre-long earth dam upstream of the existing dam, hence creating a new reservoir upstream of the existing one. This new reservoir was named Upper Peirce Reservoir, while the older reservoir was accordingly renamed Lower Peirce Reservoir.