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News » US » Hawaii advertises emergency repair contract » published 21 Jun 2018

Hawaii advertises emergency repair contract

Hawaii Department of Transportation (HDOT) is inviting bids for emergency slope stabilization work as part of a US$80m program of repairs following recent floods.

Slope stabilization work has already been taking place at Waikoko Above: Slope stabilization work has already been taking place at Waikoko

The contract is in addition to ongoing work to carry out emergency repairs following flooding of the Kuhio Highway. It covers stabilization of the slope above Kuhio Highway (Route 560) between Waikoko and Wainiha and various downslope sites on the highway.

There were over a dozen landslides following the floods in mid-April.

The revised cost estimate for the emergency flood repairs on Kuhio Highway and the upgrade of a trio of bridges is US$80m. The majority of costs for the Kuhio Highway emergency flood repairs is expected to be eligible for reimbursement through the Federal Highways Administration’s Emergency Relief program.

Work will continue on a six day a week, 10-hour a day schedule for the near future. There are two crews already at work installing soil nail and shotcrete anchor structures at two slopes at Waikoko and Wainiha where the structure of the road structure was washed out.

Once the contract for emergency repairs is awarded, an additional crew will be working on the Wainiha Mauka Slope and at various sites where the slope was compromised.

A separate contract for work to the Waikoko, Waipa, and Waioli bridges (‘the 3W bridges’) will be awarded once environmental documentation is completed. The bridge upgrades are necessary to expedite the recovery efforts on Kuhio Highway as the existing structures are load restricted to 8t, which is severely limits the amount of landslide and other debris that can be removed from the area. The upgraded bridges will be rated to 16t with emergency capacity of 25t.

 

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This article was published on 21 Jun 2018 (last updated on 21 Jun 2018).

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