Solicitation W912HY25BA023 Amend 0002 103125 Sewell_Cole.pdf

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER.

If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

1. The specifications for Solicitation No. Block 14 (Description of Amendment/Modification):

W912HY25BA023, GULF INTRACOASTAL WATERWAY, Texas, FREEPORT TO UPPER MATAGORDA BAY in BRAZORIA, MATAGORDA, and CALHOUN Counties, Texas, PIPELINE DREDGING, are hereby amended as follows:

*(THE BID DUE DATE IS HEREBY RESCHEDULED FOR 7 NOVEMBER 2025 at 10:00 A.M. Local Time.)

a) Specifications.

(1) SECTION 01 20 00, PRICE AND PAYMENT PROCEDURES - The enclosed 01 20 00 entitled PRICE AND PAYMENT PROCEDURES supersedes that issued with this Solicitation.

2. This amendment shall be attached to and become a part of the solicitation.

01 Encl:

1. SECTION 01 20 00, PRICE AND PAYMENT PROCEDURES

Section 00 00 00 - Procurement and Contracting Requirements

The following changes have been made:

INFORMATION FROM TO

Response Due Date 06 Nov 2025 07 Nov 2025

W912HY25BA0230002

SWG FILE NO.: IWW 1150-1162 SOLICITATION NO.: W912HY25BA023

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUBMITTALS

1.2 CONTRACT COST BREAKDOWN

1.3 SINGLE JOB PAYMENT ITEMS

1.3.1 Mobilization and Demobilization

1.3.1.1 Payment AM#1

1.3.1.2 Unit of Measure

1.3.2 Pipeline Management

1.3.2.1 Payment AM#1

1.3.2.2 Unit of Measure

1.3.3 Endangered Species Monitoring

1.3.3.1 Payment

1.3.3.2 Unit of Measure

1.4 UNIT PRICE PAYMENT ITEMS

1.4.1 Pipeline Dredging

1.4.1.1 Payment AM#1

1.4.1.2 Measurement

1.4.1.2.1 Frequencies

1.4.1.3 Unit of Measure

1.4.1.4 Reference Control Data

1.4.1.5 Government Surveys

1.4.1.6 Multibeam Surveys AM#1

1.4.1.6.1 Multibeam Survey Acceptance (AM#2)

1.5 DREDGING

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 20 00 Page 1

TO BE ATTACHED TO AND BECOME A PART OF THE SOLICITATION

THIS PAGE INTENTIONALLY LEFT BLANK

SECTION 01 20 00 Page 2

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

AMENDMENT NO. 0002

PART 1 GENERAL

1.1 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Progress Surveys ; G, RO

Surveys ; G, RO

1.2 CONTRACT COST BREAKDOWN

The Contractor must furnish within 30 days after the date of Notice to Proceed, and prior to the submission of its first partial payment estimate, a breakdown of its single job pay item or items which will be reviewed by the Contracting Officer as to propriety of distribution of the total cost to the various accounts. Any unbalanced items as between early and late payment items or other discrepancies will be revised by the Contracting Officer to agree with a reasonable cost of the work included in the various items. This Contract cost breakdown will then be utilized as the basis for progress payments to the Contractor.

1.3 SINGLE JOB PAYMENT ITEMS

Payment items for the work of this Contract for which Contract job payments will be made are listed in the SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, are included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.3.1 Mobilization and Demobilization

1.3.1.1 Payment AM#1

Payment will be made for costs associated with "Mobilization and Demobilization" in Schedule No. 1, "Mobilization and Demobilization -

SECTION 01 20 00 Page 3

Channel to Palacios" in Schedule No. 1, "Mobilization and Demobilization - San Bernard River Channel" in Option No. 2, and "Mobilization and Demobilization - Colorado River Channel" in Option No. 3, in accordance with Contract Clause: PAYMENT FOR MOBILIZATION AND DEMOBILIZATION.

Payment will include costs in connection with mobilization and demobilization of the plant necessary to perform work under the various bid items. The Contract price must include transportation and other costs incidental to delivery of the plant and other equipment to the general work area in condition ready for operation and, after the completion of the work, for removal of the plant and equipment from the work site(s).

Payment for mobilization and demobilization will be pursuant to the conditions as defined in the DOCUMENT 00 72 00 CONTRACT CLAUSES.

1.3.1.2 Unit of Measure

Unit of measure: job.

1.3.2 Pipeline Management

1.3.2.1 Payment AM#1

Payment for: "Pipeline Management" in Schedule No. 1, "Pipeline Management - Channel to Palacios" in Schedule No. 1, "Pipeline Management

- San Bernard River Channel" in Option No. 2, and "Pipeline Management - Colorado River Channel" in Option No. 3 of the BID SCHEDULE will be made for the costs to procure dredge pipeline materials, lay and handle the pipeline along pipeline corridors, construct ramps and install culverts as may be needed to place the pipeline, maintain the pipeline throughout dredging, remove it upon completing dredging, and to clean up the corridors.

Monthly payment will be made as follows:

a. Up to 40 percent of the Contract price will be paid when the pipeline has been laid along the pipeline route from the specified placement area to the water's edge.

b. Up to an additional 40 percent of the Contract price will be paid as a monthly progress payment based on the percentage of dredging completed as determined by the estimated volume of material dredged.

c. The remaining 20 percent of the Contract price will be paid in the first monthly partial payment after removal of all pipeline and final cleanup of the pipeline corridor associated with the respective dredging bid item.

1.3.2.2 Unit of Measure

Unit of measure: job.

1.3.3 Endangered Species Monitoring

1.3.3.1 Payment

Payment for "Endangered Species Monitoring" in Schedule No. 1 will be made for costs in connection with providing monitoring for endangered species on the Sargent Beach Placement. The Contract price will include all costs incidental to providing trained monitoring personnel at the placement site while dredge disposal operations are ongoing and all incidentals to

SECTION 01 20 00 Page 4 complete monitoring in accordance with SECTION 35 20 23.16 45 PIPELINE DREDGING. Monthly partial payments will be based on the estimates of work completed.

1.3.3.2 Unit of Measure

Unit of measure: job.

1.4 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this Contract on which the Contract unit price payments will be made are listed in the SCHEDULE and described below. The unit price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.4.1 Pipeline Dredging

1.4.1.1 Payment AM#1

Payment for pipeline dredging will be made under each of the respective bid items listed below. Payment made will cover the costs to dredge the material as prescribed, including its transportation to and placement within the designated placement area. Costs relating to pipeline placement, management, and maintenance however will not be covered by this payment. Payment for the costs of pipeline management will be made separately, as a job payment, under the respective pipeline management bid items in the BID SCHEDULE as specified in paragraph: "Pipeline Management". For the pipeline dredging bid items therefore, do not include in the unit price the costs of procuring pipeline materials, the laying and handling of pipeline, constructing ramps and installing culverts that may be needed for placement, removing the pipeline upon completion of dredging, and cleaning up the pipeline corridor.

a. "Dredging - GIWW Sections 1-2" Schedule No. 1

b. "Dredging - GIWW Section 3" Schedule No. 1

c. "Dredging - GIWW Sections 4-7" Schedule No. 1

d. "Dredging - GIWW Sections 8-9" Schedule No. 1

e. "Dredging - GIWW Sections 10-13" Schedule No. 1

f. "Dredging - GIWW Sections 14-16" Schedule No. 1

g. "Dredging - Channel to Palacios, Sections 19-23" Schedule No. 1

h. "Dredging - Channel to Palacios, Sections 24-28 " Option No. 1

i. "Dredging - San Bernard River Channel, Section SB 1" Option No. 2

j. "Dredging - Colorado River Channel, Sections CO 1 - CO 5" Option No. 3

Partial payment will be based on approximate volumes determined by fathometer soundings or sweepings taken behind the dredge as the work progresses. When submitting a progress payment request, the Contractor must obtain these intermediate soundings or sweepings, at its expense, and submit drawings of the surveys. If requested, the Contractor must submit additional backup documentation for the surveys. Final quantity determination will be based on Government before-dredging and after-dredging surveys. To receive partial payment, progress surveys must be submitted with the pay request.

SECTION 01 20 00 Page 5

1.4.1.2 Measurement

The total quantity of dredged material for which payment will be made will be the theoretical quantity between the bottom surface shown by fathometer soundings of the last survey made "before-dredging"(BD) and the bottom surface shown by the fathometer soundings of a survey made "after-dredging"(AD), within the limits of the overdepth and side and end slopes, less deductions that may be required for misplaced material.

1.4.1.2.1 Frequencies

The total quantity of dredged material for which payment will be made will be the theoretical quantity between the bottom surface shown by fathometer soundings of the last survey made "before-dredging" (BD) and the bottom surface shown by the fathometer soundings of a survey made "after-dredging" (AD), within the limits of the overdepth and side and end slopes, less deductions that may be required for misplaced material.

Measurement will be determined based on high frequency (200 kHz) data.

Low frequency (28 kHz) data will be used for acceptance/clearance purposes only.

Guidance as provided in Hydrographic Survey Engineering Manual EM-1110-2-1003 Chapter 10 will apply for scheduling of BD and AD surveys.

As provided in this guidance, Government will allow a period of up to 5 calendar days to conduct an AD survey after the Contractor indicates a section to be ready. However, if initial high frequency (200 kHz) AD surveys reflect considerable amount of suspended material for any section, the Government may require up to 5 additional calendar days settling time prior to attempting AD surveys on any subsequent section.

If the Government chooses to use low frequency (28 kHz) data for acceptance and also volume calculations, then low frequency (28 kHz) data must be used for before-dredging surveys for computations. If low frequency data is to be used for acceptance and volume calculations, surveyors are to note that the appropriate manufacturer's recommended settings for both AD and BD surveys were in place.

1.4.1.3 Unit of Measure

Unit of measure: cubic yard .

1.4.1.4 Reference Control Data

The horizontal control points shown on the drawings are the control points the Government will use to perform electronic surveys on the waterway.

The Government does not guarantee permanent access to these control points; therefore, it may be necessary for the Contractor to establish its own network of survey points from these survey points or from other U.S.

National Geodetic Survey (NGS) monuments. Location and description of the horizontal control points which the Government plans to use to perform electronic surveys on the channels are available from the Contracting Officer.

Horizontal data will be tied to the State Plane Texas South Central Coordinate System using North American Datum of 1983 U.S. survey feet (NAD83 U.S. ft). Vertical positions will be derived from NAVD88 and rectified to MLLW with a Government supplied KTD file for the project area. Tide staffs shown will be used to verify vertical control per EM

SECTION 01 20 00 Page 6

1110-2-1003, Chapter 7, Table 7-1. Vertical positions will be referenced to MLLW in US Survey Feet. Horizonal and vertical positioning may be obtained from RTX (Trimble satellite transmitted corrections). The Government will be using the real-time RTX methodology.

Time Variable Transformations must be set correctly in HYPACK when using RTX. The target year settings will be provided by the Government after award upon request.

1.4.1.5 Government Surveys

Unless otherwise specified or shown, Real Time Kinematic (RTK), Virtual Reference Station (VRS), or Trimble RTX can be used for hydrographic surveys for horizontal position and could be used for land surveys of shallow water or upland within or near the dredging template. The Government will use the tide staffs shown on the drawings to verify vertical control. Tide staffs are referenced to MLLW for this Contract.

Processing survey data will be performed with the most recent HYPACK software at the time of award, using the Kingfisher Method (updated 5/6/2016). Data will be post-processed using POSpac to perform quality checks of results when necessary. Volumes will be computed by average end area using cross sectional survey lines. Before and After Dredge cross sections will be run on 100-foot stations and at changes in the template unless otherwise specified in the Contract drawings. The Government will provide the survey line files at the Contractor's request.

1.4.1.6 Multibeam Surveys AM#1

The Government will perform electronic surveys of Schedule No. 1 Channel to Palacios and Option Nos. 1-3. Multibeam surveys will be used for acceptance and to determine pay quantities for Dredging - Channel to Palacios, Sections 19-28; Dredging - San Bernard River Channel, Section SB 1; and Dredging - Colorado River Channel, Sections CO 1 - CO 5.

If the Government determines that accurate data cannot be obtained from multibeam sonar technology due to the presence of unconsolidated material in the channel, the Government may choose to utilize dual frequency single beam sonar technology. Single beam surveys will be performed within 5 days of the original survey and these low-frequency surveys will be used for both acceptance and payment purposes.

All soundings well be calibrated following procedures outlined in EM-1110-2-1003 (2013). The Government will apply the vertical and horizontal survey control indicated in the drawings.

The Processing the survey data will be performed with the most recent version of HYPACK software available at the time of award, using the relevant method below for each type of survey.

The performance of this survey work by the government and presence of the inspector will not relieve the Contractor of responsibility for the proper execution of the work in accordance with the contract drawings and specifications.

1.4.1.6.1 Multibeam Survey Acceptance (AM#2)

a. Type of System: R2Sonic 2024 or Edgetech 6205s Multibeam Ecosounder

SECTION 01 20 00 Page 7

a. Acoustic Frequency: 200 - 540 kHz

b. Volume Computation: Survey Surface TIN vs. Channel (Standard TIN to Channel)

• Data will be post-processed using POSpac to perform quality checks when necessary.

• Survey lines will be run longitudinal along the channel and will provide full coverage from edge to edge of the template with a minimum of 20 percent overlap of swaths.

When accepting and paying based on multibeam survey, acceptance will be based on minimum depth and payment will be based on average depth. The cell size used will be 3 feet by 3 feet. Shoals above grade must be assessed based on multiple hits, a minimum of 3 hits, over successive passes. A single high spot unsupported by other data will be disregarded. This data will follow guidance described in table F-2 of EM 1110-2-1003.

1.5 DREDGING

In no case will payment be made for material removed from below the maximum pay-line or outside the dredging prism as indicated.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

-- End of Section --

SECTION 01 20 00 Page 8

1.5 DREDGING

KO CONTRACTING DIVISION, 2000 FORT POINT ROAD

GALVESTON, TX 77550-1229

UNITED STATES

DANELLE TATE, EMAIL: DANELLE.M.TATE@USACE.ARMY.MIL TELEPHONE: 409-766-3116

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