 Originally known as the Kallang River Reservoir, Singapore's second reservoir was impounded across the lower reaches of the Kalang River in 1910.In 1922, it was renamed Peirce Reservoir in commendation of the services of Robert Peirce, who was the municipal engineer of Singapore from 1901 to 1916.In late 1960s, due to increasing demand for water and the need to increase the capacity of Peirce Reservoir, a higher dam was constructed upstream of the existing dam at Peirce Reservoir in 1970.