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APAPA WHARF-OWORONSHOKI EXPRESSWAY UPGRADE

Studies recently completed by JG Afrika have informed the design of the rehabilitation of the Tin Can Island access road and Apapa Wharf-Oworonshoki expressway.

Rehabilitation of the roads as part of a public-private partnership was first mooted by AG Dangote Construction, and the proposal was favourably received by the Federal Ministry of Power Works and Housing.

We were appointed by AG Dangote Construction to undertake the pavement evaluation in 2018, and these critical insights have been incorporated into the final rehabilitation design by Yolas Consulting. The Nigerian engineering consultancy is working on behalf of AG Dangote Construction.

A detailed assessment of the condition of the road pavements and a geotechnical investigation of material used in the existing road were undertaken as part of the project.

In addition, JG Afrika undertook an extensive investigation of all available construction materials to build the road and structures.

We also proposed a continuously-reinforced concrete pavement (CRCP) design to better cope with the growing number of heavy commercial vehicles travelling between Apapa Wharf and Oworonshoki every day.

It replaces the initial suggestion of using a conventional jointed concrete pavement that would ultimately develop slab tilting and stepping on the extremely soft subgrade material encountered along sections of the existing road from Apapa to Oworonshoki.

Dangote Industries can be credited for introducing concrete pavements to the West African country.