Environmental and Social Impact Assessment - Gibe III

Gibe III – Environmental and Social Impact Assessment 300 ENV R CS 002 C - A9003099
where:
• SIS is the Scheme Impact Score;
• Cw is the Criterion weight;
• Cs is the Criterion score;
• Mps is the Maximum possible criterion score
9.3 The Impact of Gibe III
As described in Chapter 7 the Gibe III is likely to have important impacts on the main environmental issues
as summarized in the following Table and its final environmental impact score is reported in Table 9.10.
Table 9.9: Impacts of the Gibe III HPP
Land lost (Ha): Forest > 3,000
Agricultural land (cultivated and grazing) 84+17,158
People affected (n°) 329 22
Access Medium 23
Cultural (n° of monuments lost) 1
Downstream effects Medium
Aquatic ecosystems Medium
Table 9.10: Impact Score of the Gibe III HPP
Criteria Weight Score Range Score Weighted score
Land lost: Forest 5 1-5 5 5
Agricultural land 15 1-5 4 12
People affected 35 1-5 1 7
Access 15 0-3 2 10
Cultural 5 0-3 1 2
Downstream effects 10 0-3 2 7
Aquatic ecosystems 15 0-3 2 10
TOTAL 100 53
A comparison between the Gibe III scheme, the GGIIHEP and the schemes discussed in the EPSEMP is
reported in the following Table 9.11.
22 The n° of affected households reported is 47, the total affected people are estimated considering 7 persons per
household.
23
Considering mitigation and compensation represented by reallocation of the Chida-Sodo road and the provided boat
service.
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