Together with the Congo River, it provides an important transport artery for river boats between Bangui and Brazzaville.
From its source to 100 kilometres (62 mi) below Bangui, the Ubangi defines the boundary between the Central African Republic and the Democratic Republic of the Congo (DRC). Thereafter, it forms the boundary between the DRC and the Republic of Congo until it empties into the Congo River.
In the 1960s, a plan was proposed to divert waters from the Ubangi to the Chari River which empties into Lake Chad. According to the plan, the water from the Ubangi would revitalize that lake and provide livelihood in fishing and enhanced agriculture to tens of millions of central Africans and Sahelians. Inter-basin water transfer schemes were proposed in the 1980s and 1990s by Nigerian engineer J. Umolu (ZCN) and Italian firm Bonifica (Transaqua). In 1994, the Lake Chad Basin Commission (LCBC) proposed a similar project and at a March 2008 summit, the heads of state of the LCBC member countries committed to the diversion project. In April, 2008, the LCBC advertised a request for proposals for a feasibility study.
^Umolu, J. C.; 1990, Macro Perspectives for Nigeria’s Water Resources Planning, Proc. of the First Biennial National Hydrology Symposium, Maiduguri, Nigeria, pp. 218–262 (discussion of Ubangi-Lake Chad diversion schemes)
^The Changing Geography of Africa and the Middle East By Graham Chapman, Kathleen M. Baker, University of London School of Oriental and African Studies, 1992 Routledge.