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#making_video #construction #discovery_channels #mega_construction #megastructures #machine #advanced_technology #heavy_equipment #drilling #invention #concrete #construction_engineering #welding #excavator #highest #biggest #longest #africa #biggest_dam #highest_dam #longest_dam #build_a_dam #how_to_make_a_dam #dam_construction #dam_construction_process #dam_building_video #extreme_construction #civil_Engineering #construction_in_africa #mega_construction_in_africa #development_in_africaComments: