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Project No. 08H26; Project File No. E5088

Project Date

Construction from September 2023 to December 2023


Near 2665 Higgins Canyon Road, Half Moon Bay, CA 94019

About the Project

The slip-out repair project will repair the failing embankments and damaged pavements near 2665 Higgins Canyon Road. The work to be done consists, in general, of installing micro piles, soil nail wall, drainage improvements, roadway and shoulder reconstruction, guardrail, and rock slope protection revetment with plantings and erosion control/slope protection.

Public Works Contact

Wency Ng
Senior Engineer


Half Moon Bay Grading & Paving, Inc.

  • February 2023 – Subsurface geotechnical investigation.
  • May 2023 - Field Meeting with FEMA for site assessment and repair scope development.
  • June 2023 - Received and reviewing Geotechnical Investigation Report.
  • July 2023 - Developed repair work design and scope.

  • August 2023 - Finalized repair work design and scope. Construction is anticipated to begin mid-September 2023.

  • September 2023 – Pre-construction surveys have been completed. Contractor re-graded the uneven and damaged road near 2180 Higgins Canyon Road. Construction is anticipated to start in October 2023. 

  • October 2023 – Contractor performed clear-grubbing, grading earthworks/excavation, shotcrete application, and the installation of soil nails/micro-piles in preparation for the construction of outboard shotcrete wall. Construction of the shotcrete wall face, structural backfilling, shoulder build-out, and paving will be completed by the end of November or early December, if weather permits. Higgins Canyon Road at this section will remain close to through traffic, bicyclists, and pedestrians.

  • November 2023 - Contractor completed shotcrete wall. Shoulder build-out, asphalt paving, and guardrail installation, and other remaining work will be completed by January 2024. Higgins Canyon Road at this section will remain close to through traffic, bicyclists, and pedestrians.

  • December 2023 - Contractor completed shoulder build-out, asphalt paving, and guardrail. This section of the road will be open to public no later than 12/23/2023. Please refer to our project webpage for 2180 Higgins Canyon Road Slip-out Repair Project’s updates on additional road closure during construction (
  • January 2024 - Construction has been completed and the road is now open to the public. Minor punch list items are being addressed.
  • May 2024 - Completed.

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Location_Map_2180+2665Location Map 2665_Higgins2665 Higgins Drilling_of_Soil_NailsDrilling of Soil Nails Soil_Nails_InstalledSoil Nails Installed Final Soil Nail Wall (December 2023)Final Soil Nail Wall (December 2023) Paved Road & Guardrail (December 2023)Paved Road & Guardrail (December 2023) 2665 Higgins Site #3 January 2024January 2024