Piilani Hwy Landslide Repairs at Nuanualoa Gulch

Project Name

Piilani Highway Landslide Repairs at Nuanualoa Gulch
Job No. 16-33

Scope of Work

This project involves the repair of a landslide on Piilani Highway, near the Kipahulu area, that was damaged by a landslide. The landslide area is near M.P. 37, and the roadway is bounded by a cut section on the Mauka side, and a natural steep slope on the Makai side. During non-construction hours, this portion of the roadway is open for single lane traffic only. The scope of work includes clearing & grubbing, excavation, construction of a new retaining wall with rock finish, micropile foundation, tie-back anchors, guardrails, and other items. PLEASE ANTICIPATE ROAD CLOSURES MONDAY – FRIDAY, 7:30AM – 4:00PM, PENDING WEATHER CONDITIONS.
(Project Map)


NTP: January 22, 2018
Contract working days: 130
Anticipated Completion Date:  July 30, 2018

Streets Involved

Piilani Highway at Nuanualoa Gulch, near M.P. 37


Hawaiian Dredging Construction Company, Inc.
P.O. Box 4088
Honolulu, Hawaii 96812

Contract Cost


Project Contact

County of Maui, Department of Public Works
Engineering Division
(808) 270-7745

Construction Update:

Work Completed Week of 7/01/18 - 7/07/18:

  • Holiday 7/4/18 - No Lane Closures
  • Continue Forming Retaining Wall

Work Scheduled Week of 7/08/18 - 7/14/18:

  • Continue Forming Retaining Wall
  • Pour Wall Footings