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‘Rock Girl’ retires as work begins on Kailua pump station

By Brett Alexander-Estes

Pohakulani—aka “Rock Girl,” the city’s bedrock-chomping tunnel borer—has called it a day. Project teams met beneath Oneawa Hills and on June 28 linked the two sections of the City & County of Honolulu’s Kaneohe-Kailua Gravity Sewer tunnel.

“As with all tunnel ‘hole-through’ events, a feeling of accomplishment by all of the workers was felt and was very evident,” says Don Painter, Southland Mole JV project manager.

Slightly more than a year ago, SMJV and other workers began the sewer’s Phase 1—a roughly three-mile, 13-footdiameter tunnel from the Kailua Regional Wastewater Treatment Plant to the Kaneohe Wastewater Pre-Treatment Facility drilled at depths of up to 400 feet.

When completed in 2018, the KK gravity sewer will…

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