• The main roads were rehabilitated while new service roads were
constructed to accommodate the present and future demands,
• Topographic survey,
• Geological studies,
• Geotechnical investigations,
• Hydrology design/flood protection,
• Detailed geometric design of the road,
• Pavement rehabilitation study of existing main roads,
• Structural design of new service roads including asphalt and
concrete pavement. widening,
• Roundabout Interchange geometric layout and structural design,
• Detailed structure design of five tunnels.