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Honolulu Board of Water Supply
Wednesday April 18th, 2018 :: 06:38 a.m. HST

Advisory

Waimanalo Gulch Main Break Repair Update

The Board of Water Supply (BWS) is actively working to repair the 24” water main which ruptured near the entrance to the Waimanalo Gulch Landfill on Farrington Hwy. above Ko Olina in West Oahu.
 
As of 5:00 a.m., BWS crews had exposed about 20 feet of pipe in an open trench. Work was paused until additional safety equipment to shore up the sides of the trench can be delivered to the site and installed. The shoring equipment and fresh BWS crew are expected to arrive around 8:00 a.m. Once the shoring is installed, the BWS crew will resume repair to the main.
 
The heavy lift equipment used to install the shoring may necessitate temporarily closing one lane of Farrington Hwy., westbound, while the installation is taking place. The same lane-closure may be required after the repair is finished to remove the shoring from the trench. Drivers are encouraged to slow down and use caution when approaching the area.
 
The BWS was notified yesterday at 5:30 p.m. and sent personnel to investigate. Crews identified the break in a 24" main just past the entrance to Waimanalo Gulch Landfill on the westbound shoulder of Farrington Hwy. This main feeds water to the entire Waianae Coast.
 
Currently there are 6 homes on Farrington Hwy. and the landfill which are without water. Water wagons have been provided for the affected customers.
 
Both westbound lanes of traffic on Farrington Hwy. remain open. The Waianae-bound merge lane from the landfill road has been closed to keep vehicles away from the work area. HPD is on site to assist in traffic control.
 
There is reserve capacity in Waianae Coast reservoirs so that most West Coast residents still have water, though water pressure may be lower than normal or may vary. Residents are encouraged to conserve water, but to use what they need for necessary tasks such as cooking, cleaning, and personal hygiene, until the system has been returned to full operation.
 
A bypass was set up to partially restore water to Honokai Hale, though water pressure there will be lower than normal, and may vary. Those residents are also being encouraged to conserve water, while using what they need for cooking, cleaning and personal hygiene, until repairs have been completed and the system returned to normal operation.
 
Crews expect to be working through the day and into the afternoon at the site. The work is expected to have minimal impact on the morning commute. We will provide an update later in the day as to progress, and the possibility of impact to the evening commute.

Further updates will be posted as we receive more information.
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Address/Location
Honolulu Board of Water Supply
630 S Beretania St
Honolulu, HI 96813

Contact
Emergency: 9-1-1
Non-emergencies: 808-748-5041

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92-460 Farrington Hwy
Kapolei, HI 96707

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