Updated: Jul 19, 2016 4:42 PM CDT
Posted: Tuesday, July 19, 2016 5:42 PM EDT

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By Moanike’ala Nabarro

KAILUA, Hawaii –

The tunnel boring machine called “Pohakulani” is expected to complete its 3-mile journey from Kailua to Kaneohe on Tuesday in an underground sewer tunnel.  The “Pohakulani” drilled through rock 62 feet under ground.  

The machine began its three-mile journey 13 months ago.

The route links the Kailua Regional Wastewater Treatment Plant to the Kaneohe Wastewater Treatment Plant.