The Opa River is a significant watercourse in southwestern Nigeria, flowing through the city of Ile-Ife and the Obafemi Awolowo University campus.
[7] The River Opa faces hydrological challenges, including flooding during heavy rainfall events, siltation due to increased sediment load, and water pollution from agricultural and urban runoff.
[8] The Opa Reservoir is a man-made water body located within the Obafemi Awolowo University campus in Ile-Ife, southwestern Nigeria.
[9] This expansive catchment area comprises the University Research Farm, Residential Quarters, Central Campus, Ile-Ife, and surrounding rural communities.
[11] The direct linkage of township drains and streams to the reservoir has led to excessive sediment deposition, compromising its water storage capacity.
[11] The Opa River and Dam play vital roles in shaping the hydrological characteristics of the Obafemi Awolowo University campus.
Its importance extends to providing potable water for residential, agricultural, and industrial purposes, supporting irrigation for crops and livestock, and contributing to food security.
[13] Additionally, the river maintains biodiversity, regulates water cycles, and mitigates climate change, offering opportunities for fishing and eco-tourism.