Online ExclusivesTunneling in Paradise: Honolulu Progresses on Gravity Sewer Project

Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project

It’s the state’s largest-ever sewer project. Find out how a massive tunneling project is improving wastewater services on the Hawaiian island of Oahu.
  • By Jim Force
  • August 08, 2016
Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project
Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project

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Combined Sewer Overflow (CSO) Hawaii Tunneling Machine Gravity Main Wastewater Polymer Mortar Pipe Stormwater Pretreatment Odor Control Products/Equipment Pump Station Featured

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Tunneling in Paradise: Honolulu Progresses on Gravity Sewer Project
Workers lower the tunnel-boring machine.

After 13 months of boring beneath the Oneawa Hills, contractors have holed through on a new wastewater tunnel that will connect the Kaneohe pretreatment facility with the Kailua Regional Wastewater Treatment Plant serving the city and county of Honolulu.

The tunnel-boring...

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