Kayan River

The Kayan River is a river of Borneo island, flowing in the North Kalimantan province of Indonesia, about 1,600 km northeast of the capital Jakarta.^[4][5] Tributaries include the Bahau River.

Kayan River Sungai Kayan, Sungai Bulungan, Sungai Kajan, Sungai Ulungan, Boetoengan Rivier, Bulungan River, Boeloengan Rivier
Panoramic Kayan River
Location of river mouth Show map of Kalimantan Kayan River (Indonesia) Show map of Indonesia
Location
Country	Indonesia
Physical characteristics
Source
• location	Borneo
• elevation	2,015 metres (6,611 ft)
Mouth
• location	Sulawesi Sea
• coordinates	2°54′41.29″N 117°33′14.11″E
Length	576 kilometres (358 mi)
Basin size	33,005 km2 (12,743 sq mi) 33,171.8 km2 (12,807.7 sq mi)
Discharge
• location	Kayan III Hydropower Station, 72 km upstream of Tanjung Selor (basin size 26,260 km2 (10,140 sq mi)[1]
• average	2,184 m3/s (77,100 cu ft/s)[1]
Discharge
• location	Tanjung Selor
• average	2,454 m3/s (86,700 cu ft/s)[1] (Period of data: 2016–2020)2,261 m3/s (79,800 cu ft/s)[2]
Discharge
• location	Kayan Delta, Sulawesi Sea
• average	77.738 km3/a (2,463.4 m3/s)
Basin features
River system	Kayan basin (DAS320024)[3]

Kayan

river mouth

Kayan River in Kalimantan

Hydrology

The Kayan River rises on Mount Ukeng, passing Tanjung Selor city, and discharges into the Sulawesi Sea, with a total length of about 576 km (358 mi) and a basin size of 33,005 km² (12,743 sq mi), forming a wide area at the upstream and narrower in the center until downstream.^[6]

Uses

Transportation

For ages, the Kayan River served as the main transportation route for the inhabitants of Malinau and Bulungan Regency to reach the inland region of Malinau Regency using traditional boats or out of the Bulungan Regency using speed boats, while downstream there are some river ports for passengers and goods, such as Port of Kayan and Port of Pesawan.^[7]

Fishery and agriculture

The people along the Kayan River utilize the water for agriculture and fishery, either by traditional fishing or netting, especially in the upstream area, whereas about 30,000 hectares of land of the Delta Kayan is used as a Food Estate area, for fish ponds and farmlands.^[8]

Hydroelectricity

The Kayan River is used to produce hydroelectricity using some power plants, such as the Diesel-powered one in the village of Long Nawang, Kayan Hulu subdistrict.^[9] The river can produce around 900 megawatts (MW).^[10] There is also a dam for the hydroelectric power plant in the village of Desa Long Peso, Peso sub-district, Bulungan Regency.^[11]

Villages along the Kayan River

Antutan

Antutan village (Bahasa Indonesia – Desa Antutan) is one of the many villages situated along the Kayan River. The population of the village consists of Dayak sub-tribes: the Kenyah and the Kayan as well as the Tidung and the Bulungan. There are several main sources of income in this village, such as paddy plantation, farming, fishing, and crafts selling. The majority of the villagers heavily depended on the paddy rice plantation to make a living. However, some are also public servants, for example, teachers, nurses, soldiers, and police personnel.

See also

• List of rivers of Indonesia
• List of rivers of Kalimantan

References

1. Hanergy Holding Group (March 2013). Indonesia East Kalimantan Kayan River Basin Hydropower and Aluminum smelting Project (Slide deck). Archived from the original on 24 September 2021. Retrieved 24 September 2021 – via Scribd.
2. Delphine, Dobler; Elodie, Martinez; Rinny, Rahmania; Budhi Gunadharma, Gautama; A. Riza, Farhan (2021). Floating Marine Debris Along Indonesian Coasts: An Atlas of Strandings Based on Lagrangian Modelling (PDF). Archived (PDF) from the original on 7 January 2022. Retrieved 7 January 2022.
3. Hukum Online. "Keputusan Menteri Kehutanan No. SK.511/MENHUT-V/2011" (in Indonesian).
4. McNally, Rand (1993). The New International Atlas.
5. "Sungai Bulungan". GeoNames. Retrieved 29 June 2022.
6. Balai Pengelolaan DAS Mahakam Berau (December 2014). Laporan Hasil Penyusunan Klasifikasi DAS di Wilayah Kerja BPDAS Mahakam Berau Tahun 2014 (PDF) (in Indonesian). Samarinda: Balai Pengelolaan DAS Mahakam Berau. Archived from the original (PDF) on 28 March 2018. Retrieved 25 January 2019.
7. Dewi Agustina, ed. (26 January 2017). "Pelabuhan Pesawan Siap Ramaikan Jalur Perdagangan di Indonesia Timur". TribunNews.com (in Indonesian). Archived from the original on 26 January 2019. Retrieved 25 January 2019.
8. "Kemenakertrans Buka Lahan 30.000 Hektar di Kaltim". Berita Satu (in Indonesian). 6 May 2012. Archived from the original on 29 June 2022. Retrieved 29 June 2022.
9. Mathias Masan Ola, ed. (3 February 2018). "PLTD Long Nawang di Malinau Dibantu Mesin Pembangkit Listrik Milik Desa". TribunKaltim.co (in Indonesian). Archived from the original on 5 July 2018. Retrieved 25 January 2019.
10. Firsta Susan Ferdiany, ed. (29 January 2018). "Kaltara Fokus Realisasi Bendungan PLTA Kayan 900 MW". Antara Kaltara (in Indonesian). Archived from the original on 26 January 2019. Retrieved 29 June 2022.
11. Mediatama, Grahanusa (16 June 2016). "Pemerintah bangun PLTA Kayan di Kaltara". Kontan.co.id (in Indonesian). Archived from the original on 29 June 2022. Retrieved 29 June 2022.

2.91147°N 117.55392°E / 2.91147; 117.55392