Mahakam River
The Mahakam River (Indonesian: Sungai Mahakam) is third longest and volume discharge river in Borneo after Kapuas River and Barito River, it is located in Kalimantan, Indonesia. It flows 980 kilometers (610 miles) from the district of Long Apari in the highlands of Borneo, to its mouth at the Makassar Strait.
| Mahakam | |
|---|---|
Mahakam River at Samarinda | |
| Location | |
| Country | Indonesia |
| Province | East Kalimantan |
| Towns/Cities | Samarinda, Tenggarong, Sebulu, Muara Kaman, Kotabangun, Melak, Long Iram |
| Physical characteristics | |
| Source | Cemaru |
| • location | Indonesia |
| • elevation | 1,681 m (5,515 ft) |
| Mouth | Makassar Strait |
• location | Indonesia |
• coordinates | 0°35′6″S 117°16′33″E |
• elevation | 0 m (0 ft) |
| Length | 980 km (610 mi) |
| Basin size | 77,095 km2 (29,767 sq mi) |
| Width | |
| • minimum | 145 m (476 ft) |
| • maximum | 1,260 m (4,130 ft) |
| Depth | |
| • average | 8 m (26 ft) to 15 m (49 ft) |
| • maximum | 45 m (148 ft) |
| Discharge | |
| • location | Mahakam Delta, Makassar Strait |
| • average | (Period: 2016–2020)5,953 m3/s (210,200 cu ft/s)
(Period: 2003–2016)4,278 m3/s (151,100 cu ft/s) (Period: 1970–2000)123 km3/a (3,900 m3/s) 4,560 m3/s (161,000 cu ft/s) |
| Discharge | |
| • location | Muara Mahakam Samarinda (66 km upstream of mouth - Basin size 74,358 km2 (28,710 sq mi)) |
| • average | 5,000 m3/s (180,000 cu ft/s) |
| • maximum | (Year: 2012)24,156 m3/s (853,100 cu ft/s)(Tenggarong) |
| Discharge | |
| • location | Melak (Basin size: 25,700 km2 (9,900 sq mi)) |
| • average | 2,500 m3/s (88,000 cu ft/s) 2,000 m3/s (71,000 cu ft/s) |
| • maximum | 28,250 m3/s (998,000 cu ft/s) 3,250 m3/s (115,000 cu ft/s) |
| Basin features | |
| River system | Mahakam basin (DAS330236) |
| Tributaries | |
| • left | Kedang Pahu |
| • right | Kedang Rantau, Kedang Kepala, Belayan |
Mahakam
Mahakam River in Kalimantan
The city of Samarinda, the provincial capital of East Kalimantan, lies along 48 kilometers (30 mi) from the river mouth. The delta Mahakam river consist of specific micro climate which is influenced by high and low tide at sea level.
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