A bulldozer works to lift and fill sand and gravel, dig soil and foundations efficiently for buildings and large structures using heavy equipment, the concept of engineering, construction and construction, engineering professions and jobs in Saudi Arabia, interest in infrastructure development

building sand movement machine engineering buildings stones streets environment terrain construction stone roads cement industrial industry professional tool strong working soil machines development dust bulldozer digging dirt excavator heavy tractor trench gravel paved pile hole carrying worker huge jobs infrastructure professions doing unloading spine truck cranes loading developing lifting progressing saudi arabia equipment economic development tunnels modernization crushing heavy equipment urban growth heavy machinery heavy trucks digging soil loader vehicles transforming the city