One of the largest truck movements of the Snowy 2.0 project took place last week with part of the cutterhead of the fourth tunnel boring machine arriving at the Marica site.

The large centre block of the 12 metre cutterhead passed through the region at night. The truck transfer took four night time movements to transport part of the cutterhead from Port Kembla to Marica (just north of Kiandra), passing through three police districts along its journey.

Onlookers turned out at about 9.30pm in Cooma to watch the 300 tonne truck movement head slowly through town.

The entire combination of trucks and trailers was 73 metres long and seven metres wide. There were rolling road closures in place as the truck movement made its way through Cooma and along the Snowy Mountains Highway to Marica.

The cutterhead block weighed 137 tonnes with its trailer weighing 67 tonnes. Four trucks were required for the movement.

The TBM will be 178 metres long, and is purpose-built to excavate five kilometres through the complex Long Plains fault zone. Once its work is complete, the TBM will connect the Tantangara reservoir with an underground power station almost one kilometre below the surface.

Talented Tumut High School student, Monica Brimmer, will forever be linked with Snowy 2.0 after winning an Indigenous art and storytelling competition to have the TBM named after her.