2004 - 2004

Sierra Leone:

Environmental Impact Assessment of the Bumbuna Hydro Electric Dam

The Bumbuna Hydroelectric Project (BHP) was located on the Seli River, about 250 km northeast of Freetown, Sierra Leone. It consists of an asphalt-faced rock-filled dam (88 meters high), two multipurpose tunnels and a powerhouse at the base of the dam with a design capacity of 50 MW. The BHP is the first stage of a five-stage program for 275 MW ultimate capacity. A single-circuit 161 kV transmission line transfers Bumbuna’s power to Freetown and intermediate towns. An Environmental Impact Assessment (EIA) for the Bumbuna Hydroelectric Project was prepared in 1995. However, the original EIA was prepared under the constraints of an emerging civil war and was out of date and non-compliant with current World Bank operational guidelines. In 2004, LTS participated in a consortium responsible for updating the EIA. Our specialist team conducted a rapid biodiversity and land management assessment of the reservoir and immediate catchment areas in order to determine whether endemic or rare species and land-based livelihoods will be adversely affected by the project.

Clients: BMT Cordah Ltd., Ministry of Energy and Power of Sierra Leone, Nippon Koei Ltd., World Bank



Geography: Sierra Leone

Date: 2004

Keywords: biodiversity, livelihoods, water, Sierra Leone, West Africa, Africa, Ecosystems

NIRAS has been working in PFM for the last 15 years, supporting national decentralisation processes and applying pa…
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