Project No. RW909; Project File No. E5003Â
Location
Higgins Canyon Road at Mills Creek (Half Moon Bay Area)
About the Project
The Higgins Canyon Road Bridge at Mills Creek Embankment and Wingwall Repairs Project will repair the failing embankment and exposed wingwall of the bridge. The work to be done consists, in general, of installing a wingwall underpinning system, constructing a retaining wall with ground anchors, drainage improvements, and installing a rock slope protection revetment with plantings, and erosion control/slope protection.
Public Works Contact
Anthony Lum
Senior EngineerÂ
alum@smcgov.org
650-363-4100
Contractor
TBD
UPDATES
- March 2022 - 100% Draft Plans and Specs completedÂ
- April 2022 - Project out to bid, Bid Opening scheduled for May 12th, 2022Â
- May 2022 -Â Bid Opening took place May 12, 2022. Advanced Geotechniques, Inc. was the responsible low bidder and will be awarded the project on June 14th, 2022
- June 2022 -Â Contract awarded to Advanced Geotechniques, Inc. on June 14thÂ
- July 2022 -Â Contractor to start construction early August
- August 2022 -Â Contractor has started excavation and revetment work on the slope.
- September 2022 -
- Contractor completes revetment work, and drill and construct soldier pile wall
- Construction Status: 66% Complete
- October 2022 -
- Contractor starts backfill for the soldier pile wall
- Construction Status: 84% Complete
- November 2022 -
- Contractor finalized backfill for the soldier pile wall, installed and test tiebacks, finalized boulder revetment elevation
- Construction Status: 94%
- December 2022
-
Contractor completed testing of tiebacks, and installed erosion control
-
Construction Status: 97% Complete
-

Eroded embankment and exposed telecommunication line

Eroded embankment and exposed telecommunication line

Existing sacked concrete weir to be removed
View from creek of slip out and exposed wingwall

August 2022 -Â Biologist relocates a California Red Legged Frog outside of Project site limits

August 2022 -Â AGI install a temporary creek diversion system and remove existing sacked concrete wall from the creek

August 2022 -Â Andreini Brothers assist AGI with excavating and installing for the vegetated boulder revetment using the long reach arm excavator.

August 2022 -Â Constructing the vegetated boulder revetment

August 2022 -Â Constructing the vegetated boulder revetment













