This is one of the most iconic and prestigious bridge-tunnel connections TEC has been commissioned to work on to date, and the first ever immersed tunnel project in the Middle East region. Of particular interest is the Marine Interchange as a complex underground interchange, connecting the two immersed tunnels and the West Bay bridge. Also, the West Bay bridge will have the world’s largest arch span connecting the shore with the Marine Interchange.
TEC prepared the validated Concept Design (preliminary design level) of the two immersed tunnels of 3.1 and 2.8 km, the three cut-and-cover tunnels with a length of approx. 950-1250 m each connecting the bridges to the mainland and the Marine Interchange of approx. 600 m, connecting the two immersed tunnels and one of the bridges. The assignment also included the design of bridge foundations, roads, utilities, mechanical, electrical and plumbing (MEP) systems, the integral safety concept including ventilation and the preparation of a construction schedule and budget.