The crews are on the ground mobilising resources and machinery.
The gigantic bridge is located south of the Sea of Marmara in Turkey.
The project aims to ease traffic jam on the two roads.
Airport to be located in the proposed New Machakos town.
The project seeks to improve the accessibility of Lamu Port.
Upgrade will enable the airfield to handle bigger aircraft.
The 9.8km road has been under construction since July 2017.
The seven-phase project will be completed in 36 months.
The 62km motorway is set be operational by June 2022.
Sh700bn worth of mega dams are currently in the pipeline.