ArcelorMittal is developing three iron ore deposits and a concentrator in the mountains of Nimba County, 300km north east of Liberia’s capital, Monrovia. The win is the third for Dawnus on the project.
The work will involve constructing 13km of road through a heavy bush area, along with a 50m bridge across the Dayea River, a 100m bat tunnel and restoration works including replanting 85ha of trees and grasses. There will be major earthworks, with cut and fill quantities exceeding 1,000,000m3 of soil and rock to form the cuttings and embankments.
The wearing course pavement will be constructed using stone from a quarry, involving Dawnus drilling, blasting and processing 40,000m3 of products.
Challenges will include sedimentation and erosion issues to protect existing watercourses during the bulk earthworks and flora and fauna protection measures required for both the bats and Western chimpanzees.
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