The Lanet military airstrip will be converted into a civilian airport.
3D printing technology has been hailed as revolutionary.
Chinese firm CJIC was awarded the contract mid last year.
The Sacco expects to begin work by December 31.
Likoni Cable Express to be built under a public-private partnership.
F Tower is expected to become the tallest building in Africa.
The crews are on the ground mobilising resources and machinery.
The gigantic bridge is located south of the Sea of Marmara in Turkey.
The railway will link the Red Sea and Mediterranean coasts.
The project aims to ease traffic jam on the two roads.