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2. underpass foundations.jpg
2. placing material for base of uncerpas
0. road diversion.jpg
2. worksite of underpass.jpg
4. placement of concrete panels.jpg
compacting material.jpg

Stock Underpass

Location: Cromwell-Luggate Highway


Contrax (Central) Ltd was the principal earthworks contractor on the Tinwald Underpass project.



-Constructed and maintained a new two lane diversion road around the main worksite on state highway 6.

-Setup underpass work area including survey set out,safety fencing creating safe work zones.

-Excavate trench for underpass to correct depth, work around (protection of underground Chorus cables),and compact foundation.

-Place compact and test backfill,

-Install soak pits and dewater concrete sump for dewatering pump,

-Form new road subgrade road shoulders and seal,

-Excavate access ramps, reinstate new boundary fences.

We worked closely with subcontractor’s onsite to ensure safety when approaching different tasks of the project.

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