1 January
Project proposal enters list of published projects pipeline
ICRC published 2013 list of pipelines
Energy
Nasarawa
Procurement
Federal Ministry of Power, Works and Housing
15-11-2018 15:22:58
Doma Dam regulates the flows of the Ohina River in Nasarawa state. It is a multi-purpose dam with the primary purpose of irrigation and domestic water supply. There is domestic latent annual demand for power of around 163GWh, or close to 19MW of installed capacity in addition to commercial and industrial demand. A hydropower project in the vicinity will help in reducing dependence on costly and polluting options such as diesel generating sets. The project will boost power supply within the environs of the dam.
The dam is an earthfill multi-purpose dam with the primary purpose of irrigation and domestic water supply. The length of the main dam is 520 m and that of the Saddle Dam is 320 m.
The Dam and reservoir have been completed. The capacity of the project is 1.0MW, and it is proposed that the waters shall be diverted from the outlet portal of the dam after modifying the morning glory-type spillway into a pressurized power intake with proper submergence. It is estimated to cost approximately US$3.82 million, with a development period scheduled over a span of 12 months and a construction period of 24 months.
Hydropower projects are typically characterized by their capital-intensive nature, long gestation periods, predictable/ dependable power generation, and the depreciating cost of power generation. These characteristics have led to governments joining hands with private participants, with varying degrees of involvement, to develop hydropower projects globally. Development of the project via the PPP mode is considered the best possible option, while the build, own, operate, transfer model is recommended as the best methodology to attract private sector technical expertise and financial resources to develop and operate the hydropower plant at the Doma Dam.
The primary objectives of the stakeholder consultations can be outlined as follows: • Ensure that all stakeholders that relate to use of the project or those that will be affected by the development of the project are identified before design work starts. • Bring together all the people relevant to the development, to create a common vision. The key stakeholders in the development of the small hydropower project are the following: • Irrigation dependent farmers/ other users • Various government departments and agencies • Project area commissioner • Local administration • River basin development authority • Land and Revenue department • Employees currently working in the dam and trade unions, if any • Community organizations • NGOs active in the area • Contractors of goods and services.
The Doma Dam is a multi-purpose dam constructed on the Ohina River primarily to cater to the irrigation and drinking water supply needs in the vicinity. A total of 200 ha of land was scheduled to be irrigated from the waters from the Doma Dam. The salient features of the Doma Dam are: • Drainage area: 258 square kilometers • Type of main and saddle dams: Earthfill dams (embankment) • Length of main dam: 520m • Length of saddle dam: 320m • Maximum height of main dam: 27m • Maximum height of saddle dam: 8.5m • Crest elevation: 132m • Crest width 8.0m • Maximum width at base: 143m. On visual inspection, the dam appeared to be in a state of neglect and lack of maintenance of the dam was clearly evident. Shrubs, bushes, and undergrowth could be seen everywhere, although no structural damage or seepage of any nature was noticed. No data measured by the various instruments installed at the dam could be obtained. The water that was spilled via the morning glory spillway and discharged through the outlet tunnel was not being gauged and there was no information on the quantum of water being discharged.
Outline Business Case
1 January
ICRC published 2013 list of pipelines
11 October
Project Proposal was received by ICRC
11 May
ICRC issued OBC Certificate of Compliance
30 November
FEC granted approval for Doma Dam
