San Joaquin/Stockton DWSC FY26 Maintenance Dredging Project

Solicitation / RFP / RFQ

This document is an Abstract of Offers for the San Joaquin/Port of Stockton FY26 Maintenance Dredging Project. It records the offers received in response to solicitation W912P726BA001.

The abstract details offers for various dredging items (Reach 1 through Reach 13) and mobilization/demobilization. Specific quantities and unit prices are listed for each item.

• The solicitation number is W912P726BA001.
• The date issued was 04/10/2026, and the date opened was 05/11/2026.
• There have been 4 amendments issued.

This document presents the offers received from potential contractors, including:

• Curtin Maritime Corp.
• The Dutra Group
• Manson Construction Co.

It lists the unit price and estimated amount for each offered item from each contractor, along with their bid security information (SF24 and 20%) and acknowledgment of amendments.

Not specified in this document.

• The government estimate for the project is $5,449,180.97.
• The total offers from the contractors are: Curtin Maritime Corp. ($7,753,067.87), The Dutra Group ($5,969,485), and Manson Construction Co. ($8,338,056).

Amendment / Modification

This amendment (0004) modifies the solicitation W912P726BA001.

• Section 00 70 00 - Conditions of the Contract: The clause FAR 52.222-90, "Addressing DEI Discrimination by Federal Contractors" (Deviation 2026-00038), has been added.

This amendment does not appear to change proposal deadlines or submission requirements, but bidders should review the newly added clause for compliance.

• The project title is "SAN JOAQUIN/ STOCKTON DWSC FY26 MAINTENANCE DREDGING" located in Contra Costa, Sacramento, and San Joaquin Counties, CA.
• The original solicitation was dated April 10, 2026.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the W912P726BA001 San Joaquin / Stockton DWSC FY26 Maintenance Dredging solicitation.

• RFO Applicability: Yes, Revolutionary FAR Overhaul (RFO) provisions and clauses are used for this solicitation, linked under FAR 52.252-1 and 52.252-2.
• Site Inspection: The "Contractor is to satisfy itself as to conditions of the dredged material placement sites" clause (Specification Section 35 20 23, Paragraph 3.5.1) has been deleted via amendment 0002. A pre-bid site visit will not be provided, nor will a bid allowance be included due to resource constraints.
• FAR Clauses: FAR 52.225-11, 52.225-11 Alt 1, 52.225-12, and 52.225-12 Alt II have been added with amendment 0003. FAR 52.204-21 has been removed and replaced with 52.240-93, which was added with amendment 0003.
• Sediment Sampling Report: The 2025 sampling report requested by a vendor has been provided as the "Sacramento and Stockton Deep Water Ship Channel 2026 Maintenance Dredging Sampling and Analysis Report" via amendment 0003.
• Question Submission Deadline: The request to extend the deadline for submitting questions by 7 calendar days prior to the bid opening date was rejected.
• Clamshell Dredging Resolution: R5-2022-0052 is not relevant to FY26 dredging. Clamshell dredging in FY26 is permitted under R5-2019-0041, as amended by Resolution R5-2026-0013, which is provided in the original specifications package.
• Dredged Material Placement Site: The S-19 Decker Site is an approved dredged material placement site for Sacramento River, and inter-project exchange disposal sites between the San Joaquin and Sacramento Dredging projects are permitted.

Several FAR clauses have been added or modified via amendments. A specific site inspection clause was deleted. The document clarifies the applicability of certain resolutions and provides updated sampling reports. The deadline for questions was not extended.

Amendment / Modification

This amendment (0003) to the solicitation W912P726BA001, originally dated 10 APR 2026, makes the following changes:

• Added FAR Clauses:

  • 52.225-12, "Notice of Buy American Requirement-Construction Materials Under Trade Agreements."
  • 52.225-11 (Alternate I), 52.225-12 (Alternate II), and 52.240-93, "Basic Safeguarding of Covered Contractor Information Systems."

• Modified FAR Clauses:

  • 52.252-3, "Alterations in Solicitation (Apr 1984)" was updated.
  • 52.252-4, "Alterations in Contract (Apr 1984)" was updated.

• Added Specifications:

  • Sacramento and Stockton Deep Water Ship Channel 2026 Maintenance Dredging Sampling and Analysis Report.

• Section 00 21 00 - Instructions

• Section 00 70 00 - Conditions of the Contract

• Section 00 72 00 - General Conditions

• Specifications

This amendment does not appear to modify proposal deadlines or evaluation factors. Bidders should review the updated clauses and specifications to ensure compliance.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Solicitation for the W912P726BA001 San Joaquin / Stockton DWSC FY26 Maintenance Dredging project.

• Revolutionary FAR Overhaul (RFO): RFO provisions and clauses are applicable and provided under FAR 52.252-1 and 52.252-2.

• Site Inspection: The first sentence of Specification Section 35 20 23, Paragraph 3.5.1, regarding contractor self-satisfaction of site conditions, has been deleted via amendment 0002. A pre-bid site visit or bid allowance will not be provided due to resource constraints.

• FAR Clauses: Amendment 0003 adds FAR 52.225-11, 52.225-11 Alt 1, 52.225-12, and 52.225-12 Alt II. FAR 52.204-21 has been removed and replaced with 52.240-93, also added via amendment 0003.

• Equitable Adjustment for Delays: The government confirms that the contractor shall be entitled to an equitable adjustment in Contract Time and/or Contract Price for delays caused by the Owner's negligent acts or omissions.

• Scheduled Work: The Government is unaware of any scheduled work within the channel. Contractors must coordinate with the Port of Stockton for any potential upland construction or activities adjacent to the site.

• 2025 Sampling Report: The Sacramento and Stockton Deep Water Ship Channel 2026 Maintenance Dredging Sampling and Analysis Report has been added via amendment 0003.

• Several FAR clauses have been added or modified via amendments 0002 and 0003.

• The requirement for a pre-bid site visit and bid allowance has been removed.

• The deadline for submitting questions was requested to be extended but was rejected.

Questions & Answers / Clarifications

This document provides clarifications and responses to questions regarding the W912P726BA001 San Joaquin / Stockton DWSC FY26 Maintenance Dredging solicitation.

• RFO Applicability: The government confirmed that RFO provisions and clauses are used for this solicitation. Links to the RFO are provided under FAR 52.252-1 and 52.252-2.
• Site Inspection Clause: The first sentence of Specification Section 35 20 23, Paragraph 3.5.1, regarding the contractor satisfying itself as to the conditions of dredged material placement sites, has been deleted from the Solicitation via amendment 0002.
• Pre-Bid Site Visit: Due to resource constraints, a pre-bid site visit will not be provided, and a bid allowance for this effort will not be included.

This document clarifies the applicability of RFO provisions and modifies a specific clause related to site inspections. It also explicitly states that a pre-bid site visit will not be offered, impacting how bidders assess site conditions and determine their bid.

Amendment / Modification

This amendment (0002) to Solicitation W912P726BA001 modifies the original solicitation with the following changes:

• Bid Opening Time: The bid opening time has been changed from 01:00 PM PST on May 11, 2026, to 01:30 PM PDT on May 11, 2026.

• Meeting Information: A Microsoft Teams Meeting ID and Passcode have been provided for the bid opening.

• Technical Specification Update: Section 35 20 23 (Dredging), Part 3.5.1, has been updated by deleting the sentence: "The Contractor is to satisfy itself as to conditions of the dredged material placement sites, including all dikes, during a site inspection."

• Section 00 21 00 (Instructions, Conditions and Notices to Bidders/Offerors and Evaluation Criteria for Award) - specifically regarding the bid opening time and meeting details.

• Section 35 20 23 (Dredging) - specifically Part 3.5.1.

Bidders must note the updated bid opening time. All other submission requirements and evaluation factors remain as previously stated, unless otherwise modified by this or future amendments.

Amendment / Modification

This amendment modifies Solicitation W912P726BA001, originally issued on 10 APR 2026.

• The Period of Performance (POP) has been reduced from 196 calendar days to 166 calendar days after receiving notice to proceed.

• STANDARD FORM 1442, Box 11 (Period of Performance).

• SECTION 00 73 00 – SPECIAL CONTRACT REQUIREMENTS (Commencement, Prosecution, and Completion of Work).

• The change primarily affects the timeline for project completion. No changes to proposal submission deadlines or evaluation factors are indicated by this amendment.

Questions & Answers / Clarifications

This document provides a response to a bidder's question regarding the applicability of the Revolutionary FAR Overhaul (RFO) to the W912P726BA001 San Joaquin / Stockton DWSC FY26 Maintenance Dredging solicitation.

• Question: A bidder inquired if the RFO, which incorporates Department of War 2026 Class Deviations, is applicable to the referenced contract, as it was not explicitly found in the contract documents.
• Response: The government confirmed that RFO provisions and clauses are indeed used for this solicitation. The link to the RFO is provided under FAR 52.252-1 and 52.252-2.

This clarification confirms the inclusion of RFO provisions and directs bidders to the relevant FAR clauses for further information. Bidders should ensure their proposals account for these RFO requirements.

Solicitation / IFB

This Invitation for Bids (IFB) is for the FY26 Maintenance Dredging Project in the San Joaquin/Stockton Deep Water Ship Channels (DWSC) across Contra Costa, Sacramento, and San Joaquin Counties, California. The U.S. Army Corps of Engineers (USACE) is procuring annual maintenance dredging services. The work involves dredging to specified depths, with dredge material suitable for Government-furnished upland sites or Contractor-furnished beneficial reuse sites. The estimated cost range for this project is between $5,000,000 and $10,000,000.

• Dredging Depths: -35-ft MLLW plus 1-ft paid overdepth for most reaches; -38.5-ft MLLW plus 1-ft paid overdepth for the sediment trap.

• Dredging Method: Can be performed using either a clamshell dredger or a hydraulic cutterhead dredger. If hydraulic, it must have a minimum 16-inch diameter pipeline and 1,800 horsepower for the main pump engine.

• Monitoring: Contractor must hire a 3rd party for fish monitoring, water quality monitoring, and hydrographic survey requirements.

• Dredging Plant & Equipment Schedule: Bidders must complete and submit this schedule as part of their bid.

• Dredging Quality Management (DQM) System: Required for scow monitoring and pipeline hydraulic dredge operations, including data transmission to the DQM database.

• Environmental Controls: Contractor is responsible for dredge material placement site preparation and management, adhering to temporary environmental controls, and complying with various environmental regulations and monitoring plans (e.g., water quality, fish entrainment).

• Contract Type: Single Firm-Fixed Price (FFP) contract.

• Period of Performance: Work must commence within 1 calendar day of Notice to Proceed and be completed within 196 calendar days.

• Bonds: Performance and Payment Bonds (100% of contract price) and a Bid Guarantee (20% of bid price or $3,000,000, whichever is less) are required.

• Insurance: Minimum insurance coverage is required for Workmen's Compensation, Employer's Liability, General Liability, and Comprehensive Automobile Liability.

• Offer Due Date: May 11, 2026, 11:30 AM local time.

• Bid Opening: Public bid opening will be held on May 11, 2026, at 01:00 PM PST via Microsoft Teams.

• Questions Due: Inquiries must be received no later than 14 calendar days prior to the bid due date via email to Lisa Ip.

• Submission Method: Offers must be submitted electronically through the PIEE website. Telegraphic, Facsimile, emailed, hand-delivered, or mailed bids are not acceptable.

• Submittal Requirements: Bid package must include a cover letter, SF-1442, CAGE number, acknowledgement of amendments, Pricing Schedule, Representations & Certifications, SAM Record, and Submissions for Determination of Contractor Responsibility (financial capability, credit reports).

• Small Business Subcontracting Plan: Not required with the initial bid package, but the selected low bidder must submit an acceptable plan after bid opening (goal: 20% of total subcontracting dollars).

• This is a Full and Open Competition. All prospective offerors must be registered in SAM.gov and PIEE.

• A pre-award survey may be required from the low bidder if they have not had a contract with the USACE San Francisco, Sacramento, or Los Angeles Districts within the last 12 months.

• A site visit is encouraged; contact Peter Mull for arrangements.

• Wage Determinations (General Decision Numbers CA20260018 and CA20260007) are included.

Solicitation

This document is a solicitation for the FY26 Maintenance Dredging Project for the San Joaquin River / Stockton Deep Water Ship Channel (DWSC) in San Joaquin County, California. The project involves maintenance dredging to ensure the channel remains at its required depth.

• Dredging of various reaches along the San Joaquin River and Stockton Deep Water Ship Channel.

• Specific project depths are noted, including a special depth for the sediment trap (Reach 12) at -38.5 ft MLLW.

• Dredging to a project depth of -35 ft MLLW, with allowable overdepths.

• Management and placement of dredged material at designated disposal sites.

• Compliance with specifications for dredging, especially near utility crossings.

• Solicitation Number: W912P726BA001

• Contract Number: W912P726CXXXX

• Issue Date: April 2026

• Period of Performance: Not explicitly stated, but tied to FY26.

• Specific submission instructions and evaluation criteria are not detailed in this document, which primarily consists of cover sheets and dredging plans.

• Key deadlines or milestones are not provided in this excerpt.

• No specific set-aside or eligibility requirements are mentioned in the provided document pages.

• The document includes detailed dredging plans for numerous reaches (e.g., Reach 1: STA 68+00 to STA 175+00, Reach 2: STA 345+00 to STA 405+00, etc.).

• Various disposal sites are identified, including Antioch Dunes, Scour Pond, Bradford Island, Mandeville, Tule Island, Roberts Island I, Roberts Island II, and Rough and Ready Island.

• The document references other specification sections for detailed requirements (e.g., Section 00 10 00 Bid Schedule, Section 01 11 00 Summary of Work, Section 35 20 23 Dredging).