Waikiki sewer line project begins in Hawaii

Published: 03-Sep-2010

City of Waikiki has started preliminary work on a new sewer line serving Waikiki, replacing the current above-ground, temporary pipe running along Ala Moana Boulevard in Honolulu, Hawaii.

Micro-tunneling work to install the pipe underground is scheduled to begin next month. Microtunneling is a less-disruptive process in which a boring machine is used to burrow a tunnel, avoiding the need for an open trench, used to construct small tunnels.

The new sewer main will run to a length of 5,800 feet and have a diameter of six feet. It will run from Ala Wai Elementary School to the eastern entrance of Ala Moana Beach Park. Frank Coluccio Construction, contractor of the project is planning to use silent pilers to push the new pipes into the ground. The new pipes will be made of fiberglass and are corrosion-resistant.

Currently, the black above-ground pipe has been a visible reminder of the March 2006 break in which an aging sewer force main ruptured, sending 48 million gallons of raw sewage into the Ala Wai Canal.

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