Bisha Conceptual Closure Plan

Bisha Conceptual Closure Plan

Bisha Mining Share Company

Gash-Barka, Eritrea

  • Opencast pits mining copper and zinc
  • Processing plant
  • Tailings management facility
  • Water supply borefields
Project Overview

The project is located on a flat to rolling, desert-like plain in the Gash-Barka Region of Eritrea, 237 km by road from the capital, Asmara. The Bisha open pit is located within the ephemeral Freketetet River drainage. Ore extracted from the Harena deposit will be trucked using a haul road between the Harena deposit and the Bisha Main site for processing. Waste rock is moved and hauled to multiple rock storage facilities. The tailings management facility is located approximately 1 km to the north of the process plant location. 

Project Role

Knight Piésold was appointed to compile the conceptual closure plan and closure cost model for the Bisha Mine in accordance to compliance with good management practices, international guidelines, and Eritrean regulations for closure of mining projects.

The main project activities included:

  • Site visit to all facilities and major landforms
  • Updating environmental baseline and project information
  • Updating information regarding concurrent rehabilitation
  • Environmental and social risk assessment for closure
  • Conceptual closure plan
  • Closure cost model
  • Closure action plan