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Cross Island Line project halts tunnelling; Ang Mo Kio traffic diverted for 18 months

Authorities have suspended underground tunnelling works on the Cross Island Line and implemented traffic diversions along Ang Mo Kio Avenue 3 as investigations into subsurface obstructions proceed. The road realignment is expected to remain in place for approximately 18 months.

LSN Singapore · 16 October 2026

Cross Island Line project halts tunnelling; Ang Mo Kio traffic diverted for 18 months

The Land Transport Authority (LTA) has announced a temporary halt to tunnelling operations for the Cross Island Line project, with traffic management measures now in effect along Ang Mo Kio Avenue 3. The suspension comes as authorities investigate underground obstacles that have impeded construction progress in the area.

Road realignments implemented to facilitate the investigation and remediation work are anticipated to last around 18 months, during which motorists should expect modified traffic patterns on the affected stretch. The LTA has advised commuters to plan their journeys accordingly and follow directional signage during this period.

The Cross Island Line, one of Singapore's major infrastructure expansion projects, is designed to enhance connectivity across the island. The temporary setback reflects the complexities often encountered during large-scale underground construction, particularly when unforeseen subsurface conditions are discovered. Authorities have not disclosed specific details regarding the nature of the obstructions or revised project timelines.

Concerned residents and businesses in the Ang Mo Kio vicinity are encouraged to check the LTA website for regular updates on the construction schedule and traffic management arrangements. The agency has committed to maintaining clear communication throughout the investigation and remediation process.