Boskalis, Allseas awarded offshore Taiwan gas pipeline T&I job

CPC Corp. Taiwan has appointed the Boskalis/Allseas consortium to construct the second offshore gas pipeline, the YT2 pipeline, across the Taiwan Strait from Yongan to Tongxiao.

Estimated value of the contract is around EUR 1.2 billion.

The consortium will design, construct, install and pre-commission the 36-in., 232-km pipeline. It will be laid parallel to the existing YT1 pipeline, connecting the Yongan LNG terminal in southwest Taiwan with the Tongxiao transfer station in the northwest.

The work scope includes trenching, 34 crossings for the pipeline over existing and future infrastructure and facilities, backfilling, and two landfalls.

Boskalis will be responsible for the landfalls and associated microtunnelling activities, nearshore and offshore trenching, backfilling, and installation of rocks for the pipeline crossings. It will deploy two large hopper dredgers, a large backhoe dredger, and a subsea rock installation vessel.

Allseas will perform the pipeline installation and pre-commissioning, including pre-lay installation of concrete mattresses, using two pipelay vessels. Project execution is due to start next year and finish in 2028.