Construction of a major transportation project has entered its most technically demanding phase. The 20km project includes a long elevated viaduct and tunnel section, with work underway since 2018. Difficult ground conditions are slowing some works, with hard rock and groundwater posing challenges.

Tight working spaces are also a concern, particularly where tunnelling passes close to existing infrastructure. Extra ground support measures are being taken to ensure stability. The project team has had to adapt construction methods to address these challenges.

Further details on the project's progress and the measures being taken to overcome these challenges are available from the Land Transport Authority.