Sanaga Bridge Geotechnical Study

Before any bridge design begins, the ground itself must be understood. The Sanaga Bridge Geotechnical Study grounded the crossing's design in solid technical data.

Project Overview

This project focused on carrying out soil analysis and boreholes along the proposed Sanaga crossing, providing the technical foundation for the bridge's structural design.

Field investigations were combined with laboratory testing to characterise soil bearing capacity, groundwater conditions and seismic risk along the crossing.

Key Features of the Project

The study combined field investigation, laboratory testing and technical reporting, aiming to give engineers the data needed to design a safe and durable crossing.

• Twelve boreholes characterised soil conditions along the full crossing.
• Laboratory testing confirmed bearing capacity for foundation design.
• Groundwater monitoring informed the bridge's drainage strategy.
• Detailed technical reports gave engineers clear design parameters.
• Findings were delivered on schedule to keep the bridge project moving.

Findings from the study were shared directly with the design team, ensuring foundation recommendations were incorporated from the earliest design stages.

Post-Construction Evaluation

The study's findings gave the Ministry of Public Works a clear, data-backed foundation for the bridge's structural design.

This technical groundwork reduces risk and cost surprises later in construction, a benefit that compounds across the life of the crossing.