The facility is expected to offer many economic and social benefits.
The contractor is finalising the erection of wall barriers along the bypass adjacent to Kibera.
Decision was made after Kenya failed to raise 15% of the project cost.
Some of the major negative effects of the SGR on the Kenyan economy.
The upgrade will enable the airport to handle large aircraft such as Boeing 767 and Boeing 467.
They rely heavily on soil stabilization technology to deliver affordable roads.
The railway is designed to enhance transport operations in the country.
The 940km road will link Eldoret to Juba through the Nakodok/Nadapal border.
The project will involve upgrading Outering Road from a single lane to a dual carriageway.
The facility, which will constitute 3,300 solar panels, will generate 1,256MWh a year.