Jatiluhur Reservoir, Large reservoir in Purwakarta, Indonesia.

Jatiluhur Reservoir sits in Purwakarta, West Java, and extends over a large area with water from the Citarum River. A dam holds the water back and supplies both power generation and irrigation in the region.

The Dutch irrigation engineer W.J. van Blommestein first proposed damming the Citarum to stop floods in Bekasi and Karawang. In 1957 the government assigned PLN, which hired the French firm Coyne et Bellier to design the dam; President Soekarno laid the first stone that year. Acting President Soeharto inaugurated the reservoir on 26 August 1967, at a cost of US$230 million, after 5,004 people from flooded villages were resettled.

Fishermen rely on floating net cages visible everywhere across the water. These structures help them earn a living as they move between the installations in small boats.

The area is quite large, so choosing a viewpoint near the dam gives a good overview. Morning and evening hours offer more comfortable light and less heat.

The reservoir's power plant runs on a run-of-river system, described in the sources as the largest of its kind in the world, with six turbines of 187 MW installed capacity producing an average of 1,000 million kWh a year. It is managed by Perum Jasa Tirta II, the state firm renamed in 1999 from Perum Otorita Jatiluhur.