The Otin River is a watercourse located in Inisa, Osun State, Nigeria. It is impounded by the Eko-Ende Dam, serving multiple communities in the region.
Legend
According to Yoruba mythology, the orisha Otin is personified in the Otin River.
- She originally hailed from the town of Otan, but moved to Inisa
- Otin helped protect Inisa from enemy invasions
- In gratitude, the townspeople of Inisa worship her as a deity
Region
The river traverses the Odo Otin Local Government Area, covering approximately:
- 950 square kilometres (370 sq mi) in northeastern Osun State
- The river gives the LGA its name
Topography & Climate:
- Rugged terrain with elevations ranging from 35 to 400 metres (115 to 1,312 ft)
- Annual rainfall: ~1,400 mm (55 in)
- Rainy season: April to November
Land Use:
- Mixed tropical rainforest and rotational bush farming
- Major crops: Cocoa, kola, and plantain
Course
- Length: 36 kilometres (22 mi)
- Peak discharge: 76.01 m³/s (2,684 cu ft/s)
- Drainage basin: 475 km² (183 sq mi)
- Tributary of: Erinle River
Dams and Infrastructure
Eko-Ende Dam (built 1973):
- Located in Irepodun LGA
- Reservoir capacity: 5.5 million cubic metres (MCM)
- Purpose: To supply potable water to:
- Inisa
- Oba
- Eko-Ende
- Eko-Ajala
- Ikirun
- Iragbiji
- Okuku
- Note: Dam construction flooded farmlands belonging to the Oba people, and in return, they were granted piped water access
Erinle Dam:
- Located downstream in Olorunda LGA
- An extension of the old Ede Dam on the Erinle River
- Reservoir stretches ~12 kilometres (7.5 mi) north along the Erinle River
- Covers the lowest portion of the Otin River
References
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Sources
(List sources or data origins when available)