Z--DEEP CLEAN BARRY BAKER TUNNEL (PRESSURE WASH) SERV

Amendment / Modification

This amendment (0001) to Solicitation 140P8626Q0029, originally issued on 04/24/2026, provides the following updates:

• Attachments: Posts Attachments 06 (Q and A) and 07 (Site Visit Sign In Sheets).

• Submission Deadline: The Request for Quotation (RFQ) must be received by Monday, 05/11/2026, at 3:00 PM (PT) via electronic mail.

• Questions & Clarifications Deadline: All questions and/or clarifications were due on Tuesday, 05/05/2026, at 3:00 PM (PT).

• Site Visit: The site visit schedule is now closed. It was held on April 29, 2026, and May 4, 2026.

• The amendment primarily adds new attachments and confirms existing deadlines and procedures.

• The deadline for submitting quotes is confirmed as 05/11/2026. Bidders must acknowledge receipt of this amendment.

• The requirement is a TOTAL SMALL BUSINESS SET-ASIDE with NAICS code 561990.

• The contract will be a Firm-Fixed-Price type.

• The period of performance is 09/01/2026 to 02/28/2027.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the solicitation for the 140P8626Q0029 opportunity. It also includes information related to two site visits.

• Water Access: Water can be obtained/supplied at Building 513 in Fort Baker. The specific flow rate is not known, but it is pressurized and takes approximately 20 minutes to fill a 500-gallon tank. Contractors are responsible for field verification.
• Scope: The wing walls and front of the tunnel are included in the scope.
• Prevailing Wage: This is a prevailing wage project; refer to Attachment 03 – DOL WD SCA for details.
• Insurance: Refer to RFQ, page 13, Liability Insurance – DOI for specific insurance requirements beyond standard coverage.
• Tunnel Access: There is no limited access to the tunnel during work hours; it is open to the public.
• Staging: Staging is permitted in the parking lot on the East side.
• Traffic Control: A traffic control plan must be submitted for approval.
• Flaggers: No minimum number of flaggers is required, but at least one is recommended.
• PPE: Follow OSHA requirements for hard hats and masks. Reflective vests (minimum Type II) are required.
• Test Spot: Performing a test spot is not allowed.
• Traffic Flow: Eastbound traffic can be directed to Conzelman via McCullough. Westbound and Eastbound traffic accommodation details are provided.

This document clarifies several aspects of the solicitation, including scope, site logistics, safety requirements, and traffic management, which may impact proposal preparation and execution plans. No changes to due dates or submission rules are indicated.

Form / Attachment / Pricing Sheet

This document is a sign-in sheet for a site visit related to RFQ 140P8626Q0029 for DEEP CLEAN BAKER-BARRY TUNNEL (PRESSURE WASH) SERVICES in GOGA.

• Lists participants' names, companies, titles, and contact information.
• Records attendance for site visits conducted on April 29, 2026, and May 4, 2026.

This document confirms that a site visit occurred, indicating potential bidder interest and engagement with the opportunity. It may also provide contact information for companies that attended, which could be relevant for teaming or subcontracting discussions.

Form / Attachment / Pricing Sheet

This document is the "Existing Commitment and Relevant Experience Questionnaire" (Attachment No. 04) for RFQ - 140P8626Q0029. Its purpose is to allow offerors to demonstrate successful past experience of relevant jobs that compare favorably to the work offered in the project. Bidders are instructed to list jobs of similar nature/scope performed within the last THREE (3) years. If an offeror has no relevant experience, they must state this on the form to qualify for a neutral rating.

• Part I - Existing Commitments: Requires details on up to two current projects, including Customer/Client's Name, POC information, Job/Project Value, Period of Performance, Project % Complete, and a brief description of project requirements.
• Part II - Relevant Experience: Requires details on up to five past projects (including the largest contract in the past five years). For each project, bidders must provide:
  • Customer/contracting agency
  • POC information
  • Contract number and title with location
  • Whether experience was as Prime or Subcontractor
  • Award date, initial award amount, and award amount at contract completion
  • Contract completion date and actual completion date
  • Brief description of project requirements
  • A description of aspects similar in scope and magnitude to the current requirement
  • A description of unique conditions/challenges and how they were overcome.

This form is critical for bidders to provide evidence of their qualifications and relevant experience as required by the solicitation. Completing this questionnaire accurately and thoroughly will be essential for the government's evaluation of the offeror's capability to perform the work described in the RFQ.

Solicitation / RFP / RFQ

This is a combined synopsis/solicitation for commercial items for "Deep Clean Baker-Barry Tunnel (Pressure Wash) Services" at the Golden Gate National Recreation Area (GOGA). The National Park Service intends to award a single Firm-Fixed-Price contract to a responsible small business offeror whose quote is most advantageous to the government, considering technical factors and cost/price.

• Pressure wash the walls and ceiling of the Barry-Baker Tunnel using hot water (no cleaning agents or solvents).

• Use waddles and silt protection at drain inlets to prevent sediment and debris.

• Inspect and clean weep holes and wire mesh for clogging to ensure free seepage flow.

• Implement traffic control measures as per Public Traffic Management and Drawings/Maps.

• Remove graffiti using liquid gel graffiti remover.

• Mobilization and Demobilization.

• Contract Type: Firm-Fixed-Price

• Period of Performance: September 1, 2026, to February 28, 2027.

• Questions & Clarifications Due: Tuesday, May 5, 2026, by 3:00 PM (PT).

• Site Visit: April 29, 2026, at 10:00 AM (PT) and May 4, 2026, at 10:00 AM (PT). RSVP required.

• Quotations Due: Monday, May 11, 2026, by 3:00 PM (PT).

• Submission Method: Electronic Mail to earl-michael_gabriel@ios.doi.gov. Include RFQ# 140P8626Q0029.

• Evaluation Factors:

  1. Technical Capability / Relevant Experience
  2. Past Performance
  3. Cost/Price
  4. Qualification/Certification (Not Applicable)

• This is a 100% Total Small Business Set-Aside. Only offers from Small Business concerns will be considered.

• NAICS Code: 561990 – All Other Support Services.

• Business Size Standard: $16.5 million in annual gross receipts for the past three years.

• A written solicitation will not be issued.

• Offerors must be registered in the System for Award Management (SAM).

• Attachments include: Price Schedule, Statement of Work (SOW), DOL WD SCA, Existing Commitment/Past Performance/Relevant Experience, and Drawings/Photos/Maps.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work outlines the requirements for a deep clean of the Baker-Barry Tunnel located in the Golden Gate National Recreation Area, Sausalito, California.

• Pressure Washing: Clean tunnel walls and ceiling (~43,000 sq. ft.) using hot water (180-200°F), avoiding direct spray on lights and electrical conduit. No cleaning agents or solvents are permitted. Silt protection is required at drain inlets.

• Mineral Deposit Removal: Remove heavy mineral deposits from walls, weep holes, and roadways using scraping or wire brush implements. Gutters are to be cleaned of debris.

• Weep Hole Maintenance: Inspect and clean approximately 130 weep holes and wire mesh. Replacement of wire mesh may be necessary for up to 20% of the weep holes.

• Traffic Control: Implement measures to allow westbound traffic through the tunnel while safely managing working equipment. Eastbound traffic will be detoured.

• Graffiti Removal: Remove all graffiti within the tunnel using a biodegradable liquid gel graffiti remover compatible with hot water and high-pressure spray.

• Location: Golden Gate National Recreation Area, Marin County, Marin Headlands - Bunker Road, Sausalito, California.

• Work Hours: Tunnel cleaning operations are to be conducted between 10 pm and 6 am. Public traffic will be allowed normal use outside these hours. Special work hours may occur for up to five consecutive calendar days.

• Contractor Use of Site: Confined to designated work areas; materials and equipment to be stored within the work area. Staging area is the parking lot adjacent to the East Entrance.

• Protection of Historic and Natural Features: Strict adherence to plans and immediate notification of deviations. Prevent damage to historic features, cultural landscapes, and natural surroundings. Temporary barriers for trees and plants are required.

• Utilities: Water for high-pressure washing will be provided by NPS. Contractor is responsible for preventing damage to existing utilities.

• Safety: Contractor must develop and implement a Site Specific Safety and Health Plan (SSSHP).

• Submittals: Required submittals include Project Superintendent designation, Service Work Schedule, SSSHP, and Traffic Control Plan, due at least 3 weeks prior to work commencement.

• Environmental: Adherence to federal, state, and local regulations for hazardous waste, solid waste, and unauthorized discharges. Housekeeping and site management are critical.

Form / Attachment / Pricing Sheet

This document is a Contract Bid Schedule (Excel spreadsheet) for Solicitation RFQ# 140P8626Q0029. It outlines the pricing structure for the "DEEP CLEAN BAKER-BARRY TUNNEL (PRESSURE WASH) SERVICES" at the GOLDEN GATE NATIONAL RECREATION AREA (GOGA) in San Francisco, CA.

• Solicitation Number: RFQ# 140P8626Q0029
• Park: GOLDEN GATE NATIONAL RECREATION AREA (GOGA), SAN FRANCISCO CA 94123
• Project Title: DEEP CLEAN BAKER-BARRY TUNNEL (PRESSURE WASH) SERVICES
• Line Items:
  • 10: Mobilization and Demobilization (Lump Sum)
  • 20: Pressure Wash Walls, Gutters, Road and Clean Weep Holes (Lump Sum)
  • 30: Traffic Control (Lump Sum)
• Pricing: Bidders must provide Unit Price and Extended Total Price for unit-priced items, and Total Price for lump-sum items. Extended prices should be rounded to whole dollars.

This pricing schedule is critical for bidders to understand the specific services required and to submit their financial offers. Bidders must provide pricing for all base line items to ensure their proposal is considered acceptable. The government encourages alternate proposals that may result in cost savings. Refer to the Scope of Work (SOW) and other attachments for detailed service requirements.

Form / Attachment / Pricing Sheet

This document is a U.S. Department of Labor Wage Determination (WD) for the Service Contract Act (SCA), specifically Wage Determination No. 2015-5725, Revision No. 27, dated 12/03/2025. It establishes the minimum wage rates and fringe benefits required for various occupations performing work under federal contracts in Marin County, California.

• Lists numerous occupational codes and titles, ranging from administrative support and clerical to technical and recreational occupations.
• Specifies the minimum hourly wage rate for each listed occupation.
• Indicates that "Fringe Benefits Required Follow the Occupational Listing." Specific fringe benefits are detailed later in the document, including Health & Welfare rates and Paid Sick Leave provisions (EO 13706).
• Includes notes on Executive Orders 13706 (Paid Sick Leave) and 13658 (minimum wage adjustments).
• Outlines requirements for vacation and holidays.
• Provides guidance on the Service Contract Act Directory of Occupations and the conformance process for unlisted classifications.

This document is critical for any bidder on a federal contract in Marin County, California, that is subject to the Service Contract Act. It dictates the minimum labor costs that must be factored into proposals. Bidders must ensure their proposed wages and benefits meet or exceed these requirements to be compliant. The document specifies the minimum hourly rates and fringe benefits for a wide array of job classifications, helping contractors accurately estimate labor costs and comply with federal regulations.

Form / Attachment / Pricing Sheet

This document provides detailed drawings, photographs, and maps related to the Barry Baker Tunnel at the Golden Gate National Recreation Area. It includes typical tunnel dimensions, conditions, and specific details for weep hole cleaning and mineral buildup removal. It also outlines traffic control measures for deep cleaning operations.

• Typical Dimensions: Illustrates the tunnel's width, height clearances, and the location of water lines, sewer lines, and gutters.
• Weep Hole Cleaning: Details the process for cleaning weep holes and wire mesh, including notes on estimated quantities, materials, and the extent of potential replacement.
• Typical Conditions: Photographs showing mineral buildup on tunnel walls, curbs, and gutters.
• Location Maps: Aerial views showing the tunnel entrances, staging areas, and surrounding roads (Alexander Ave., Danes Road, U.S. Hwy 101).
• Traffic Control Plans: Diagrams and notes detailing traffic detours and control measures for Eastbound traffic leaving Marin Headlands and for deep cleaning operations on the North and South tunnel walls, including specific hours of operation (10 PM to 6 AM).

This document is crucial for bidders to understand the physical characteristics of the Barry Baker Tunnel, the specific conditions requiring attention (e.g., mineral buildup, weep hole blockages), and the logistical requirements for performing work, particularly regarding traffic control and access. It provides essential visual and descriptive information for scope assessment and planning.