Sidan Dam in Bali to Be Completed by End of November, Supplying Water for 1.3 Million People
The Sidan Dam, located across the districts of Badung, Bangli, and Gianyar in Bali, is targeted for completion by the end of November 2024. This dam will provide clean water to serve 1.3 million residents.
Minister of Public Works Dody Hanggodo, alongside Coordinating Minister for Infrastructure and Regional Development Agus Harimurti Yudhoyono (AHY), inspected the progress on Sidan Dam on Monday, November 11, 2024. The physical construction of the Sidan Dam is 96.59% complete and is expected to be fully finished by the end of November.
“This Sidan Dam is an essential infrastructure project under the Ministry of Public Works, and it’s close to completion, requiring only a few finishing touches to reach 100%,” AHY said. “It can soon be inaugurated and put to use for the benefit of the public, especially in supporting Bali’s tourism industry.”
AHY expressed his hope that the dam’s construction would finish soon, providing vital resources to Bali’s communities and supporting tourism, particularly in the Sarbagita Metropolitan Area, including Denpasar, Badung, Gianyar, and Tabanan.
Minister Dody Hanggodo also highlighted the dam’s significance, particularly in supplying 1,750 liters of clean water per second for 1.3 million residents and in flood control for an area of 108 hectares.
“The dams constructed by the Ministry of Public Works are intended to increase water supply for the community, while also serving to mitigate flooding. Hopefully, this dam will significantly reduce flood occurrences,” Dody explained.
Bob Arthur Lombogia, Director General of Water Resources at the Ministry of Public Works and Public Housing (PUPR), added that, besides water supply and flood control covering 108 hectares with a reduction efficiency of 3.2% or 5.15 m³/second for a 50-year flood recurrence, Sidan Dam also has potential for generating electricity.
“The Sidan Dam has potential for micro-hydropower generation (PLTMh) with a capacity of 0.65 MW, and a floating solar power potential that could cover 20% of the reservoir area, generating 1 MW per hectare, with an overall potential of 8 MW. This brings the total energy capacity to 8.65 MW, supporting Bali’s energy self-sufficiency,” Bob explained.
The construction of Sidan Dam was initiated to meet the water demand in the Sarbagita area, which requires a capacity of 5,100 liters per second. Current supply only meets 50% of this need, with Sidan Dam expected to provide an additional 45%.
To address the remaining demand, the Ministry of Public Works has identified and planned other infrastructure for water supply through the Bali Province Water Supply System Plan. For instance, the existing Unda Reservoir will supply 500 liters per second for Gianyar. Additionally, a long storage OS reservoir has been completed in design, set to provide 20 liters per second to Gianyar and 80 liters per second to Denpasar, explained Adenan Rasyid, Director of Dams and Lakes, Directorate General of Water Resources.
“We are also designing the Balian Dam to supply 70 liters per second for Tabanan and 200 liters per second for Denpasar. Finally, the long storage at Tukad Melangit will supply 100 liters per second for Gianyar and 50 liters per second for Klungkung, totaling 970 liters per second, which will exceed Bali’s water supply needs,” Adenan concluded.
