Senior Hydropower/Dam/Hydraulic Engineer

Mr R Dhani Irwanto is a Senior Civil Engineer specializing in the hydropower, dam and hydraulic structures fields.  He has 29-year professional engineering experience as civil engineer for hydropower plant, combined cycle power plant (CCPP), multipurpose dams (for irrigation and hydropowers) and other hydraulic structures.  He is experienced in engineering of HPP projects in Indonesia such as Kotaagung (Bengkulu), Poso-1, -2, and -3 (Central Sulawesi), Malea (South Sulawesi), Tamboli (Southeast Sulawesi), Wampu (North Sumatera), Lebong (Bengkulu), Jamboaye (Aceh), Kusan-3 (South Kalimantan), Merangin-2 (Jambi), Rajamandala (West Java), Kelai-2 (East Kalimantan), Ketaun-1 (Bengkulu), Besai (Lampung), Plumbungan (Central Java) and more than 120 small scale hydropower plants in Java, Sumatera and Sulawesi, and CCPP such as Cilegon (Banten), Grati (East Java), Muaratawar (West Java) and Gresik (East Java).

He is also experienced in engineering of multipurpose dam projects in Indonesia such as Jamboaye (Aceh), Keuliling (Aceh), Ciawi (West Java), Jatigede (West Java), Bajulmati (East Java), Paselloreng (South Sulawesi), Bintan (Riau), Batubulan (Sumbawa) and Pelaparado (Sumbawa).

He is trained on hydropower and dam engineering, and investment appraisal on infrastructure projects.

He is an engineering software developer for OptPower (layout and size optimisations for hydropower plants), EvaPower (hydropower plant evaluation), ResReg (reservoir regulation simulation), RetainWall (retaining wall engineering design) and LeanWall (leaning wall engineering design).

He is one of the founders and directors of PT Indonesia Hydro Consult.

Portfolios

Training

1. Speaker in Civil Engineering Entrepreneurship Lecture Series, Civil and Environment Department Faculty of Engineering University of Gadjahmada, November 2016
2. Speaker in Short Course for Introduction to Hydro Electrical Power Plant, I Care Indonesia Foundation and Tropical Renewable Energy Center University of Indonesia, April 2016
3. Speaker in Classical Training EDP Year 2015, PT Tamaris Hidro, April 2015
4. Speaker in Workshop on Hydropower, PT Bukaka Teknik Utama, March – May 2011
5. Speaker in A – Z Hydropower Seminar, Productivity, 2 – 4 August 2010•Speaker in Workshop on Hydropower, PT Bukaka Teknik Utama, April – June 2010
6. Speaker in Workshop on Hydropower, PT Bukaka Teknik Utama, 10 – 21 August 2009
7. Speaker in Workshop on Hydropower, PT Bukaka Teknik Utama, 15 September 2008•Speaker in Workshop on Hydropower, PT Bukaka Teknik Utama, 29 and 30 June 2008
8. Organiser and Speaker in Workshop on Dam and Power Engineering, Wiratman & Associates, 13 September 2005
9. Speaker in Workshop on Construction of Tunnel, Construction Services Training Center (Puslatjakons), 1 August 2005
10. Speaker in Workshop on Hydropower, Junior Members Forum, Indonesian Engineers Association (FAM-PII), 25 June 2005
11. Participant in National Workshop on Concrete-Faced Rockfill Dam, Ministry of Public Works, March 2005
12. Participant in Convention on Formulating Work Competence Standard for Dam Engineers, National Construction Services Development Board (LPJK), 13 to 14 October 2004
13. Organiser in Workshop on Water Resources and Power Engineering, Wiratman & Associates, 7 September 2004
14. Participant in Workshop on Working Duty and Preparation of Competence Standard for Dam Engineers, Construction Services Training Centre (Puslatjakons), 2 to 3 September 2004
15. Speaker in Workshop on Construction of Tunnel, Construction Services Training Center (Puslatjakons), 23 July 2004
16. Participant in Workshop on Prevention of Dam Failures through Design, Construction, Operation and Maintenance Practices Professionally, 14 November 2001
17. Participant in Indonesian Professional Engineers Program, held by The British Council, UK in association with Mott MacDonald in Cambridge, UK, 6 June 1994 to 22 July 1994
• Consultancy practice: organisation, client relationships, business planning, manpower planning, marketing/business development, report writing
• Consultancy management: role of consultant in privately managed projects, division management, consultancy agreements/negotiation skills, risk management, computers in consultancy practices, people communication skills, presentation technique
• Management of project: construction supervision, project management, quality assurance, presentation
• Proposals preparation and writing
• Technical options: hydropower planning and design
18. Participant in Planning, Appraisal and Management of Infrastructure Projects for The Indonesian Professional Engineers, held by Development and Project Planning Centre, University of Bradford, UK in association with National Association of Indonesian Consultants (INKINDO), 11 April 1994 to 20 May 1994 in Jakarta and 27 May 1994 to 3 June 1994 in Bradford, UK
• Project cycle, demand analysis
• Time value of money, measures of project worth, uncertainty, sensitivity and risk analysis
• Project formulation, cost-benefit analysis, cost effectiveness analysis, economic appraisal, shadow pricing, financial appraisal, cost recovery and tariff, project implementation and management, project management information system
• Environment impact analysis
19. Participant in Intensive English Training, held by The British Council, UK, Indonesian Association of Indonesian Consultants (INKINDO), and Unit for English Training, Ministry of Public Works, September 1993 to March 1994
20. Participant in Supervisory Management Workshop, organised by Wiratman & Associates, March to April 1992•Participant in Dam Engineering Training for Engineers, held by BANKONSULINDO and INKINDO, 5 to 7 September 1989
21. Participant in Quality Control Circle Facilitator Workshop, organised by Indonesian Quality Management Foundation, 26 May to 10 June 1989

Seminars

1. National Seminar on Large Dams" “The Roles of Technology and Competence of INACOLD Experts in Supporting the Acceleration of the Construction of Dams”, INACOLD, 11-12 May 2016
2. National Seminar on Large Dams: “Dams as Infrastructures for Flood Control”, INACOLD, 3-4 May 2011
3. National Seminar on Large Dams: “Development and Operation of Dams for Renewable Energy”, INACOLD, 16 June 2010
4. National Seminar on Large Dams: “Water Resources Optimization through Large Dams”, INACOLD, 10 May 2006
5. National Seminar on Large Dams: “Regulations in Construction and Management of Dams in Indonesia”, INACOLD, 18 May 2005
6. National Seminar on Integrated and Sustainable Water Resources Management Based on Regional Potentials, HATHI, 30 September to 2 October 2004
7. National Seminar on Large Dams: “Dam and Carry Out of Stakeholder for Environmental Control”, INACOLD, 24 March 2004
8. National Seminar on Large Dams: “Sustainability of Development and Management of Dams in Indonesia”, INACOLD, 21 May 2003 
9. National Seminar on Effects of Catchment Degradation on River Maintenance in Jabodetabek Area, HATHI and Ministry of Public Works, 13 March 2003 
10. National Seminar on Large Dams: “ Dams in Indonesia – Lessons to be Learned”, INACOLD,28 February 2002
11. National Seminar on Large Dams: “Developing Large Dam Management System for the Future”, INACOLD, 8 March 2000 
12. National Seminar on Decentralised Management of Water Resources in Indonesia, Bandung Institute of Technology, Ministry of Public Works, Bappenas, HATHI, 4 September 1999
13. National Seminar on Large Dams: “Large Dam Engineering 1996”, INACOLD, 21 November 1996 
14. National Seminar on Conservation of Water Resources, HATHI, 11 October 1994
15. National Seminar on Large Dams: “Large Dams Technologies in Indonesia with their Problems”, INACOLD, 5 August 1993
16. National Seminar of Computer Applications on Engineering Design of Irrigation and Swamp, Bandung Institute of Technology, 4 March 1989

Papers Written

1. "Atlantis: Kota yang hilang ada di Laut Jawa", Indonesia Hydro Media, 2015 – book
2. "Atlantis: The lost city is Java Sea", Indonesia Hydro Media, 2015 – book
3. “Small Scale Hydropower”, Jakarta, 2010 (A- Z Hydropower Seminar by Productivity) – presented
4. “Hydrology and Energy”, Jakarta, 2010 (A- Z Hydropower Seminar by Productivity) – presented
5. “Beberapa Kegagalan Bendungan dan Pelajaran yang Dapat Diambil – Bagian 2”, Jakarta, 2006 (INACOLD)
6. “Pembangkit Listrik Tenaga Air”, Jakarta, 2005 (Wiratman & Associates) – presented 
7. “Bendungan”, Jakarta, 2005 (Wiratman & Associates) – presented
8. “Terowongan”, Jakarta, 2005 (Wiratman & Associates) – presented 
9. “Peluang dan Tantangan Profesi Insinyur Sipil”, Jakarta, 2005 (PII) – co-author, presented
10. “Beberapa Kegagalan Bendungan dan Pelajaran yang Dapat Diambil”, Jakarta, 2005 (INACOLD)
11. “Konstruksi Terowongan”, Jakarta 2005 (Puslatjakon) – presented
12. “Sekilas mengenai Perencanaan Pembangkit Listrik Tenaga Air”, Jakarta, 2005 (FAM-PII) – presented
13. “Perkembangan Metode-metode Perencanaan dan Desain Terowongan Bertekanan”, Bali, 2004 (HATHI) – presented
14. “Konstruksi Terowongan”, Jakarta, 2004 (Puslatjakon) – presented 
15. “Desain Bendungan Roller Compacted Concrete untuk PLTA Kusan-3”, Jakarta, 2004 (INACOLD)
16. “Keamanan Bendungan di Indonesia dan Pengaturannya”, Jakarta, 2004 (HATHI)
17. “Perkembangan Terakhir Cara-cara Analisis Stabilitas Masa Tanah dengan Pembebanan Statis dan Dinamis”, Jakarta, 2004 (INACOLD) – presented
18. “Keamanan Bendungan Urugan terhadap Gempa”, Jakarta, 2003 (INACOLD)•“Tipe Bendungan dan Pemilihannya”, Jakarta, 2003 (INACOLD)
19. “Desain Tubuh Bendungan yang Defensif  terhadap Gerak Patahan”, Jakarta, 2002 (INACOLD)
20. “OptPower – Program untuk Optimisasi PLTA”, Jakarta, 1995 (Wiratman & Associates) – presented
21. “Bangunan Pemecah Tenaga”, Yogyakarta, 1987 (Gadjahmada University) – presented 
22. “Pengelolaan Air Irigasi di Daerah Irigasi Wadaslintang”, Yogyakarta, 1987 (Gadjahmada University) – presented

Awards



Indonesian Leader Award by Kharisma 7 Media - one of the awards given to prominent company leaders in Indonesia.

Indonesia Leaders Development Award 2014, Category The Prominent Figure in The Entrepreneurship of The Year 2014 by Global Development Foundation

The 2014 Indonesian Leadership Award, Category The 50 Best Leaders Companies by Kharisma 7 Media and Clock Research & Development Center

Indonesia Corporate Innovative Award 2015, Category The Most Trusted Company in Consultant 2015 by Indonesia Achievement Development Foundation

Inspiring People Award 2015, Category The Best Smart and Innovator Entrepreneur of the Year by Kharisma 7 Media and Clock Research & Development Center

Indonesian Improvement Award 2016, Category The Best Reliable Hydro Engineering Consultant Services of the Year by Sembilan Bersama Media

Best of 2016 Indonesia Business Quality Award, Category The Most Improvement Company in Consulting of the Year 2016 by Indonesia Development Achievement Foundation

Indonesian Ministers Awards of Exellence 2016, Category The Best Innovative Figures of the Year 2016 by Kharisma 7 Media and Clock Research & Development Center

Nation's Brightest Award 2017, CEO of the Year 2017, "Corporate Consultant"

Links

Experiences 

1. Manager for all projects undertaken by INDONESIA HYDRO™ CONSULT.
2. Manager for Feasibility and Detail Design of Kalibening Hydropower Plant (2 × 1.5 MW) in Banjarnegara, Central Java, Indonesia owned by PT Bias Petrasia Persada from November 2011.
3. Manager for Feasibility and Detail Design of Baseh Hydropower Plant (2 × 0.93 MW) in Banjarnegara, Central Java, Indonesia owned by PT Rumeksa Power from November 2011.
4. Manager for Feasibility and Detail Design of Air Meo Hydropower Plant (2 × 1.35 MW) in Muaraenim, South Sulawesi, Indonesia owned by PT Ulu Enerindo Jaya from August 2011.
5. Team leader for Review of Feasibility Study of 8 Hydropower Plants located in West Java and Banten assesed by PT Medco Power Indonesia in May to June 2011.  The plants are Cibalapulang 1 (11.5 MW in Sukabumi), Cibareno (2.9 MW in Lebak), Cileteuh (1.8 MW in Sukabumi), Cisereuh (2.1 MW in Sukabumi), Cisiih Leutik (1.7 MW in Lebak), Cisimeut (3.3 MW in Lebak), Curug Citambur (620 kW in Cianjur) and Curug Malela (3.2 MW in West Bandung)
6. Manager for Feasibility and Detail Design of Babakan Hydropower Plant (2 × 0.67 MW) in Banyumas, Central Java, Indonesia owned by PT Rumeksa Power from February 2011.
7. Manager for Feasibility and Detail Design of banjaran Hydropower Plant (2 × 1.1 MW) in Banyumas, Central Java, Indonesia owned by PT Rumeksa Power from January 2011.
8. Manager for Feasibility and Detail Design of Cicatih Hydropower Plant (2 × 3.2 MW) in Sukabumi, West Java, Indonesia owned by PT Bias Petrasia Persada from January 2011.
9. Manager for Feasibility and Detail Design of Sambirata Hydropower Plant (2 × 0.75 MW) in Banyumas, Central Java, Indonesia owned by PT Rumangsa Energi Banyumas Utama from August 2010.
10. Manager for Feasibility and Detail Design of Ambal Hydropower Plant (2 × 1.05 MW) in Banjarnegara, Central Java, Indonesia owned by PT Nureco Tirta Banjarnegara from August 2010.
11. Manager for Feasibility and Detail Design of Sunyalangu Hydropower Plant (2 × 0.76 MW) in Banyumas, Central Java, Indonesia owned by PT Naluri Energi Utama from May 2010.
12. Manager for Feasibility and Detail Design of 2 Hydropower Plants in Banjarcahyana Irrigation Channel in Banjarnegara, Central Java, Indonesia owned by PT Naluri Energi Utama from April 2010.  The plants are Kincang (320 kW) and Singgi (240 kW)
13. Manager for Feasibility and Detail Design of 3 Hydropower Plants in Banjarcahyana Irrigation Channel in Banjarnegara, Central Java, Indonesia owned by PT Daya Tirta Banjarnegara from April 2010.  The plants are Adipasir Satu (340 kW), Adipasir Dua (340 kW) and Adipasir Tiga (360 kW)
14. Technical Advisor for Detail Design of Lae Ordi 2 Hydropower Plant (2 × 5 MW) in Pakpak Barat, North Sumatera, Indonesia owned by PT Bakara Bumi Energi in May to October 2010.
15. Manager for Feasibility and Basic Design of 3 Hydropower Plants in Simonggo River  developed by PT Northsum Hydro from June 2010.  The plants are Tornauli (2 × 4 MW), Nambadia (2 × 5 MW) and Parduaan (2 × 5 MW) located in Humbang Hasundutan, North Sumatera, Indonesia.
16. Manager for Feasibility and Basic Design of Sisira Hydropower Plant (2 × 3.11 MW) in Humbang Hasundutan, North Sumatera, Indonesia, developed by PT Northsum Hydro from June 2010.
17. Manager for Feasibility Study of Tina Hydropower Plant (3.7 MW) in Buru Island, Maluku, Indonesia, developed by PT Binatek Reka Energy in April 2010.
18. Manager for Feasibility Study, Engineering Design and Construction Supervision of some hydropower projects in Java, Sumatera and Sulawesi Island, Indonesia from January 2010 to November 2011.  The plants are Cisono (3 × 1 MW) in Lebak, Banten by PT Cisono Hydro, Cisanggiri (3 × 1 MW) in Garut, West Java by PT Cisanggiri Hydro, Cikidang (3 × 1 MW) in Lebak, Banten by PT Cikidang Hydro, Cisungsang (3 × 1 MW) in Lebak, Banten by PT Cisungsang Hydro, Cibareno (3 × 1 MW) in Lebak, Banten by PT Batuganda Energy; Batang Lembang 1 (1 × 1 MW), Batang Lembang 2 (3 × 1 MW) and Batang Lembang 3 (2 × 1.1 MW) in Solok Selatan, West Sumatera by PT Batang Lembang Energy; Liki 1 (2 × 1 MW), Liki 2 (2 × 0.8 MW) and Liki 3(2 × 0.7 MW) in Solok Selatan, West Sumatera by PT Liki Energy; Telun Berasap (2 × 5 MW) in Kerinci, Jambi by PT Adhinusa Karyadaya, Rua Pampang (2 × 0.85 MW) in West Lampung, Lampung by PT Kota Karang Satu, Melesom (2 × 1.15 MW) in West Lampung, Lampung by PT Melesom Energy, Malaya (2 × 2.7 MW) in West Lampung, Lampung by PT Malaya Energy, Halami (2 × 14 MW) in Lampung Barat, Lampung by PT Halami Energy, Basungan (2 × 1 MW) in Lampung Barat, Lampung by PT Basungan Energy and Sakita (2 × 1 MW) in Morewali, South Sulawesi by PT Sakita Hydropower.
19. Manager for Feasibility Study, Engineering Design and Construction Supervision of some hydropower projects in Sumatera and Sulawesi Island, Indonesia from July 2007 to November 2011.  The plants are Poso 1 (3 × 20 MW) in Poso, Central Sulawesi by PT Poso Energy Satu, Poso 2 (3 × 65 MW) in Poso, Central Sulawesi by PT Poso Energy, Poso 3 (3 × 110 MW) in Poso, Central Sulawesi by PT Poso Energy, Malea 1 (2 × 45 MW) in Tanatoraja, South Sulawesi by PT Malea Energy, Malea 2 (2 × 45 MW) in Tanatoraja, South Sulawesi by PT Malea Energy, Kerinci 1 and 2  (4 × 45 MW) in Kerinci, Jambi by PT Kerinci Hydro Energy, Tamboli (4 × 5 MW) in Kolaka, Southeast Sulawesi by PT Tamboli Energy and Gumbasa (2 × 75 MW) in Palu, Central Sulawesi by PT Gumbasa Energy.
20. Manager for Construction Management and Engineering of Poso 2 Hydropower Project (3 × 65 MW) in Poso, Central Sulawesi, Indonesia owned by PT Poso Energy in January 2009 to November 2011.
21. Team Leader for Detailed Design of Jamboaye Multipurpose Dam Project in Aceh Timur, Nangroe Aceh Darussalam, Indonesia owned by The Ministry of Public Works, Indonesia.  The dam is mainly for hydropower (235 MW), irrigation (55,700 ha) and water supply (4.6 m3/s).
22. Manager for Engineering Design of Poso 2 Hydropower Project (3 × 65 MW) in Poso, Central Sulawesi, Indonesia owned by PT Poso Energy in July 2007 to December 2008.
23. Project Manager for Kerinci 1 and 2 Hydropower Projects (4 × 45 MW) in Kerinci, Jambi, Indonesia owned by PT Kerinci Hydro Energy in October 2006 to June 2007.
24. Hydropower Advisor for Poso 2 Hydropower Project (3 × 65 MW) in Poso, Central Sulawesi, Indonesia owned by PT Poso Energy in May 2006 to September 2006.
25. Hydropower Specialist for Development Review of Kerinci 1 and Kerinci 2 Hydropower Projects  (4 × 45 MW) in Kerinci, Jambi, Indonesia owned by PT Kerinci Hydro Energy in January 2006 to April 2006.
26. Senior Dam Engineer for Engineering Support for Construction of Keuliling Dam in Aceh Besar, Nangroe Aceh Darussalam, Indonesia owned The Ministry of Public Works, Indonesia in August 2005 to December 2005.  The homogeneous earthfill dam (24 m high) is for irrigation (175 ha).
27. Senior Dam Engineer for Detailed Design of Ciawi Dam in Bogor, West Java, Indonesia owned by The Ministry of Public Works, Indonesia in July 2004 to March 2005.  The zoned central core rockfill dam (90.5 m high) is mainly for flood control of Great Jakarta area, domestic water supply (5.22 m3/s) and hydropower (5.1 MW).
28. Civil Design Engineer for Site Selection Study for a Coal-Fired Steam Power Plant (2 × 660 MW) in West Java, Indonesia owned by PT Tanjung Jati Power Company in April 2004 to June 2004.
29. Team Leader for Feasibility, Detailed Design and Construction Preparation of Plumbungan Hydropower Plant (1 × 1.7 MW) in Banjarnegara, Central Java, Indonesia owned by PT Indonesia Power in December 2003  to April  2004.
30. Team Leader for Pre Feasibility Study of Cilalanang Dam in Kuningan, West Java, Indonesia owned by The Ministry of Public Works, Indonesia in September to December 2003.
31. Civil Engineer for Feasibility Study of Sangatta Coal-Fired Steam Power Plant (2 × 7 MW) in East Kutai, East Kalimantan, Indonesia owned by the Government of East Kutai Regency and PT Indonesia Power in March to August 2003.
32. Dam Engineer for Detailed Design of Bajulmati Dam in Banyuwangi, East Java owned by The Ministry of Public Works, Indonesia in March 2002 to February  2003. The zoned central core rockfill dam (56.5 m high) is mainly for irrigation (5,000 ha).
33. Senior Dam Engineer  for Detailed Design of Keuliling Dam in Aceh Besar, Nangroe Aceh Darussalam, Indonesia owned by The Ministry of Public Works, Indonesia in May 2001 to February 2002.  The homogeneous earthfill dam (24 m high) is for irrigation (175 ha).
34. Dam Engineer for Dambreak Analysis of Paselloreng Dam, Gilirang Irrigation Project in Wajo, South Sulawesi, Indonesia owned by The Ministry of Public Works, Indonesia in March to July 2001.
35. Tunnel Structure Engineer for Besai Hydroelectric Power Project (90 MW) in West Lampung, Lampung, Indonesia, Damage to Headrace Tunnel Lining during First Filling, Assessment by Independent Technical Consultant to PT McLarens Indonesia on behalf of PT Asuransi Yasuda Indonesia in September 2000 to March 2001.
36. Dam and Hydraulic Structure Engineer for Feasibility Study of Bintan to Singapore Water Supply Project in Bintan Island, Riau, Indonesia owned by PT Air Bumi Bertuah in January to July 2000.
37. Dam Engineer for Detailed Design of Kusan 3 Hydropower Project (130 MW) in Tanah Bambu, South Kalimantan, Indonesia own by PT PLN (Persero) in November 1997 to December 1999. The dam (101 m high) is a roller compacted conrete (RCC) dam.
38. Hydropower Engineer for Reconnaissance Study for Four Hydropower Schemes in South Sulawesi, Indonesia owned by PT Bajragraha Sentranusa in June to August 1997.  The plants are Kalumpang (120.5 MW), Mandar (5.8 MW), Camba (4.5 MW) and Jeneberang (0.9 MW).
39. Dam and Civil Design Engineer for Detailed Design of Merangin 2 Hydropower Project (350 MW) owned by PT PLN (Persero) in June 1995 to July 1997.
40. Civil Engineer and Deputy Team Leader for Detailed Design of Grati Combined Cycle Power Plant (800 MW) in Grati, East Java, Indonesia owned by PT PLN (Persero) in August 1994 to May 1995.
41. Civil Engineer for Construction Preparation of Muaratawar Combined Cycle Power Plant (800 MW) in Bekasi, West Java, Indonesia owned by PT PLN Persero in October 1993 to February 1994.
42. Hydropower Project Planning and Optimisation Engineer for Feasibility Study of Rajamandala Hydropower Project (55 MW) in Cianjur and Bandung, West Java, Indonesia owned by PT PLN (Persero) in February to October 1993.
43. Hydropower Project Planning and Optimisation Engineer for Pre Feasibility Study for Kelai-2 Hydropower Project (168 MW) in East Kalimantan, Indonesia owned by PT PLN (Persero) in May 1992 to January 1993.
44. Civil Engineer for Detailed Design Review of Gresik Combined Cycle Power Plant (1500 MW) in Gresik, East Java, Indonesia owned by PT PLN (Persero) in April 1991 to April 1992.
45. Civil Design Engineer for Lampung Reclamation Project in Tanjungkarang, Lampung, Indonesia own by PT Bangun Lampung Semesta in October 1990 to March 1991.
46. Dam and Hydraulic Structures Engineer for Detailed Design for  Batubulan and Pelaparado Irrigation Dam Project in Sumbawa Island, East Nusatenggara, Indonesia owned by The Ministry of Public Works, Indonesia in March to October 1990. The Batubulan dam (38.5 m high) and Pelaparado (50 m) are zoned central core rockfill dams for irrigation.
47. Civil Design Engineer for Feasibility Study for Three Hydropower Schemes in Sumatera and Kalimantan, Indonesia: Merangin 2 (350 MW), Ketaun 1 (84 MW) and Kusan 3 (90 MW) owned by PT PLN (Persero) in August 1988 to March 1990.
48. Design Engineer and System Planning for Special Maintenance for Non Tidal Swamp Irrigation Area of Silaut (3200 ha) owned by The Ministry of Public Works, Indonesia in April to August 1988.
49. Civil Design Engineer for Master Plan and Engineering Design of City Drainage of Martapura, South Kalimantan, Indonesia owned by The Ministry of Public Works, Indonesia in September 1987 to February 1988.
50. Civil Design Engineer for Special Maintenance for Irrigation Areas of Timbang Lawang (1050 ha), Bukit Cermin (455 ha), Pekan Dolok (2200 ha), Bendang (3600 ha), Pulau Pisang (300 ha) in North Sumatera, Indonesia owned by The Ministry of Public Works, Indonesia in June to August 1987.