E5022_RFI_County_Response_03-16-2026.pdf
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- Solicitation number
- E5022
- Issued by
- San Mateo County, California
About this file
This is a county response document from San Mateo County regarding the Lerida Court and Gabarda Way Retaining Walls Improvement Project, a civil infrastructure construction project in Ladera, California. The project involves approximately 320 feet of retaining wall improvements along County Road No. 222, including demolition of existing deteriorating soldier pile and wood lagging walls and construction of new shotcrete-faced retaining walls supported by cast-in-drilled-hole concrete piles, steel walers, and ground anchors. The scope encompasses drainage system improvements with concrete swales, gutters, and new storm drain infrastructure; asphalt concrete pavement and base material removal and replacement; rock slope protection; site restoration with hydroseed and fiber rolls; and tree removal with utility coordination for existing water, electrical, sanitary sewer, and storm drain lines. Sealed bids are due by 2:30 p.m. on Thursday, March 19, 2026, submitted by mail or hand delivery to the County Executive's Office, 500 County Center, 5th Floor, Redwood City, California 94063. The deadline for written questions and contract exceptions is March 13, 2026 at 5:00 p.m. The anticipated contract award date is April 7, 2026, with contractors required to begin work within ten calendar days of receiving the Notice to Proceed and complete the project within 80 working days, subject to liquidated damages of $4,800 per calendar day for delays.
The project has an Engineer's estimate of $3,060,000. Bidders must hold either a Class A License or applicable Class C licenses and must be registered with the California Department of Industrial Relations at contract award. All contractors and subcontractors must comply with prevailing wage requirements under California Labor Code Section 1770 et seq. Contractors are required to obtain comprehensive general liability insurance of $1,000,000, motor vehicle liability insurance of $1,000,000, and professional liability insurance of $1,000,000, with the County named as additional insured, along with workers' compensation and employer's liability insurance. All bidders must submit Certificates of Compliance and Intent demonstrating compliance with Equal Employment Opportunity requirements under Executive Order 11246, Title VII of the Civil Rights Act of 1964, and the California Fair Employment and Housing Act. The County requests local hiring from the San Mateo County labor market when possible. Construction waste management requirements mandate 100 percent diversion of inert materials and 50 percent diversion of remaining construction debris. Plans and specifications are available for download via the OpenGov website or for purchase at a nonrefundable fee of $40 per set from the Director of Public Works. Bidders may not withdraw their bids for forty-five days after bid opening.
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Text version
QUESTIONS SUBMITTED
FOR
COUNTY OF SAN MATEO
DEPARTMENT OF PUBLIC WORKS
LISTED BELOW ARE THE QUESTIONS (Q) SUBMITTED FOR THE
LERIDA COURT AND GABARDA RETAINING WALLS IMPROVEMENT PROJECT
IN THE LADERA AREA
COUNTY PROJECT NO. RW928
PROJECT FILE NO. E5022
THE COUNTY OF SAN MATEO DEPARTMENT OF PUBLIC WORKS
HAS PROVIDED RESPONSES (R) TO THE QUESTIONS BELOW
Q1. I don’t see any connection between the lower concrete waler and the structural shotcrete. The sections on page 7 of the plans just show what appears to be cold joint. Is this correct?
R1. The lower concrete waler and the structural shotcrete are separated by a cold joint.
Q2. Confirming the entire area of the walls are to be backed with geocomposite drain, not just 2’ strips like Caltrans?
R2. The geocomposite material shall be placed continuously against the existing lagging but shall be omitted at the flanges of the existing I-beams.
Q3. Is the concrete cover over the upper ground anchors (sections 2 and 3 on page
7) to be structural shotcrete, no construction joint is shown?
R3. The concrete cover over the upper ground anchors shall be structural shotcrete.
Q4. Is there a followers list for this project. There is not a tab as usual for this project.
R4. We have enabled the public follower list feature. Thank you for bringing it to our attention.
Q5. Good morning, Wil there be a bidder’s list provided? I want to make sure our company is on list for bidding this project.
R5. If you have downloaded plans and specs from Opengov you will automatically be on the plan holders list, and this list will be posted two working days prior to bid opening on our website. If you have obtained plans and specifications by other means please fill out the plan holder’s affidavit in the specs and return via email.
Q6. Morning, We are a planholder for the above project and will be preparing a proposal. I do not see a Bidder’s Bond form in the specifications. Are we required to use a County furnished bond form or a standard from our surety?
R6. We do not have a standard template for bid bond form. Please use the standard one from your bonding company.
Q7. Are there any permits expected apart from the County Encroachment Permit?
Are costs for the County EP to be bore by the contractor and are they to be reimbursed?
R7. An Encroachment Permit from the County is not required, as this is a County project.
Q8. When is the work expected to start onsite?
R8. The contract award is anticipated in early April. A pre-construction meeting will be held approximately one to two weeks after award, at which time the Contractor and County will coordinate the project start date. We anticipate construction to begin in early May.
Q9. Are the Standard Specifications available online? I was not able to find them. If they are available, can you include a link?
R9. The plans and specifications for this project are provided in the OpenGov attachments. The County references and follows the 2018 Caltrans Standard Plans and Specifications. The Special Provisions included with the project provide additional County-specific requirements or instructions that may not be covered in the Caltrans Standards.
Q10. Confirming that both Structural Shotcrete and Sculpted Shotcrete will be required on both the Upper Wall and Lower Wall? Detail #1 appears to label Structural Concrete for the Upper Wall only and Sculpted Concrete for the Lower Wall only.
R10. Both the Upper Wall and Lower Wall shall include structural shotcrete installed to the minimum thickness required for structural purposes. The Upper Wall shall consist of structural shotcrete only and shall receive a colored troweled finish.
The Lower Wall shall consist of structural shotcrete with a sculpted shotcrete finish with color applied. The sculpting/troweling does not count toward the minimum thickness needed for structural purposes.
Q11. Confirming that per the Spec the intention is for the MC 18x58 walers and end plates to be both galvanized and epoxy coated followed by the entire system being covered in concrete?
R11. Both the MC 18x58 walers and end plates shall be galvanized and epoxy coated.
Q12. The drawings only call for end plates where they would be connected to the walers. There is no information on the required thickness of these plates. Can you provide this thickness?
R12. The thickness of the end plates is ¾ inch.
All RFI Requests were due by March 13, 2026, and the County provided responses on March 11, 2026 and March 16, 2026. The County will not be providing responses to additional RFI’s.
Updated as of March 16, 2026 F:\Users\design\C3D\E5022000_Lerida Court Retaining Walls Project\14 Bid Process\RFI\RFI_County Response_RW928.docx
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