The Blue Line will run 27km from Okokomaiko to Marina, one of the most densely travelled corridors in Lagos. The rail infrastructure is being developed in conjunction with the Badagry Expressway project, a proposed toll road running from Lagos to Badagry. The Blue Line will run on an exclusive 15 metre right of way in the middle of the expressway.

In total there will be thirteen stations, three which will be shared with the Red Line system. The stations will be located above the tracks, with large pedestrian walkways crossing the expressway. Large, concrete barriers will be placed between the rail lines and the expressway to ensure no external factors will disrupt service. The Blue Line system will require the construction of two bridges. The larger of the two, to be shared with the Red Line, will connect the mainland with the island. The second bridge will be across the river at Mile 2.

The fixed assets, including construction of the alignment, bridges, and stations, will be wholly funded by the Lagos State Government. A concessionaire is currently being sought to procure and finance rolling stock and depot facilities, as well as provide operations and maintenance over a 25 year period. The concessionaire will be compensated through passenger revenues as well as revenues earned from retail activities within stations.

For more comprehensive information on the Blue Line project, please view the Project Briefing Document.