Advanced Engineering Consultants

Project Background
In the heart of Lagos State, a groundbreaking project is underway—the construction of the 4th Mainland Bridge. This ambitious endeavour aims to revolutionise transportation infrastructure, connecting key city regions and easing traffic congestion. Led by the Lagos State government, the project represents a significant investment in the future development and prosperity of the region.

Statement Of Problem
Lagos State faces persistent challenges with traffic congestion, particularly in major transport corridors. The existing road network is strained beyond capacity, leading to long commute times, reduced productivity, and environmental pollution. Recognising the need for a comprehensive solution, the government has initiated the 4th Mainland Bridge project to address these issues and improve mobility for residents and businesses.

Proposed Solution
At its core, the 4th Mainland Bridge will span an impressive 38 kilometers, boasting four lanes of expressway designed to accommodate speeds of up to 100 to 120 kilometers per hour. But the project is more than just a bridge—it is a comprehensive transportation solution. Initially, six interchanges will be installed, with provisions for two additional interchanges in the future, enhancing connectivity and facilitating smooth traffic flow. Three mainline toll plazas and ramp toll plazas will ensure sustainable funding for maintenance and future developments, while two service areas with adjacent trailer park facilities will provide essential amenities for travellers. Dedicated lanes for cyclists and pedestrians and additional pedestrian crossings will enhance accessibility and safety along the corridor.
Furthermore, the project aligns with the Greater Lagos vision, promoting holistic urban development and economic growth. Access to three major land development areas will drive investment and urban expansion, while environmental considerations such as river bridges and culverts will minimise the project’s impact on natural waterways. Provisions for future expansion include the potential for six lanes each way and dedicated lanes for Bus Rapid Transit (BRT) systems, ensuring the project’s adaptability to future transportation needs.