The Daniela Tunnel, through Momaia Hill, is 1,350m long.
Crews have completed 665m (50%) of the floor slab and 615m (46%) of the upper vault of the Daniela Tunnel.
The company is also making progress on the parallel Alina Tunnel, with 80% of excavation completed and 610m of the base plate built.
If the current pace of construction is maintained, excavation of the Alina Tunnel will be completed in April.
