Tunnel Under King Abdulaziz Road
Tunnel Boring Machine Dhafrah is boring its way for 12km under King Abdulaziz Rd, constructing the tunnel with interlocking wall segments as it goes. The workers travel into the tunnel in a small carriage.
Tunnel Boring Machine San’ah passes through the excavation that will become the deep underground station at the north end of the Riyadh AirBase.
The Northern End of the Green Line
The depot at the northern end of the Green Line is where the trains will enter the tunnel
Viaduct along Abi Jafar Al Mansur
The piers along Abi Jafar Al Mansur extend into the distance, in preparation for the laying of the bridge spans.
The shallow underground section of the Purple Line under construction near the SABIC building.
Viaducts alongside Princess Noura University
Line 4 viaducts runs down the western border of Princess Noura University and are constructed using the Full Span Launching Method
Precast Yards and Depot
Line 4 has its own factories making the beams that will form the viaduct spans