The $US9.2 million project, to be performed by Insituform Technologies, involves the repair of 2.3 km of 24 and 30 inch pipe using CIPP.

In addition, CIPP will also be used to rehabilitate 518 m of 8 and 10 inch pipes, while 3.6 km of 24, 30 and 26 inch pipes will be cleaned.

The project also includes the revitalisation of 19 manholes with epoxy liner, and the installation of a new liner in the Wailupe Stream inverted siphon to improve the flush action for cleaning.

The works will be undertaken on Kalanianaole Highway, from Niu Valley to Wailupe Beach Park, and along the Kahala Beach coastline.

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Honolulu Mayor Mufi Hannemann said “We’re fulfilling our promise to repair our long-neglected sewer system and wastewater treatment plants with these major capital investments. These projects are constructed with the money that is collected in sewer fees.

“We will continue to devote our resources to improving our overall island infrastructure with projects like this,” Mr Hannemann said.

The project is scheduled for completion in April 2011.