SCOPE OF WORK

3D-PRINTED PHYSICAL MODEL

OF THE LOCK & DAM 25 NEW 1,200-FT LOCK PROJECT

Amendment 0001

June July 31, 2026

Table of Contents

1. PROJECT LOCATION

2. PROJECT BACKGROUND AND DESCRIPTION

3. GENERAL DESCRIPTION OF SERVICES

4. REFERENCES

Federal, State, and Industry Standards

5. GOVERNMENT-FURNISHED INFORMATION

5.1 Description of Government-Furnished Information

5.2 Delivery of Government-Furnished Information

5.3 Government-Furnished Information Handling Requirements

6. TECHNICAL REQUIREMENTS – MODEL SPECIFICATIONS

6.1 Scale and Physical Dimensions

6.2 Model Scope and Extent

6.3 Modular Components

6.4 Functional Requirements

6.5 Material and Finish Performance Standards

6.6 Identification Placard and Color Legend

7. TECHNICAL REQUIREMENTS – SEGMENTATION AND TRANSPORTABILITY

7.1 Segmentation Plan

7.2 Transport Cases and Internal Protection

7.3 Case and Component Labeling

7.4 Assembly and Disassembly

8. TECHNICAL REQUIREMENTS – PRE-PROCESSING

8.1 Conversion of Government Furnished Files

8.2 Flat-Bottom Geometry Modification

8.3 Color and Labeling Scheme Development

9. TECHNICAL REQUIREMENTS – POST-PROCESSING AND QUALITY

9.1 Support Removal, Trimming, and Finishing

9.2 Miter Gate Functional Performance

9.3 Removable Monolith Component Performance

9.4 Color Consistency

10. DIGITAL DELIVERABLES

11. CONTRACTOR SUBMITTALS AND GOVERNMENT REVIEW

11.1 General

11.2 Quality Control Plan

11.3 Pre-Processing and Design Review Package

11.4 Fabrication Conformance Demonstration

12. SCHEDULE

12.1 Period of Performance

12.2 Contractor Production Schedule

12.3 Government Review Turnaround Commitment

13. INSPECTION, ACCEPTANCE, AND CONFORMANCE

13.1 General Inspection Authority

13.2 Physical Delivery Inspection and Acceptance Criteria

13.3 Acceptance and Rejection

13.4 Nonconformance Correction

14. SHIPPING AND DELIVERY

14.1 Delivery Terms

14.2 Delivery Address

14.3 Carrier Requirements and Transit Insurance

14.4 Shipment Documentation

15. DATA RIGHTS, CYBERSECURITY, AND INTELLECTUAL PROPERTY

15.1 Government Property Rights in Government-Furnished Information

15.2 Government Purpose Rights in Contractor-Generated Fabrication Files

15.3 Conflict of Interest

15.4 Release of Information

16. WARRANTY

16.1 General Warranty

16.2 Warranty Remedy

16.3 Warranty Limitations

16.4 Subcontractor Warranties

17. COORDINATION AND CONTRACT ADMINISTRATION

17.1 Contractor Project Manager

17.2 Contracting Officer's Representative

17.3 Contracting Officer Authority

17.4 Subcontractor Coordination and Disclosure

17.5 Contractor Liability

18. SAFETY REQUIREMENTS

18.1 Compliance with EM 385-1-1

18.2 Material Safety

18.3 Fabrication Safety

18.5 Waste Disposal

1. PROJECT LOCATION.

Lock and Dam 25 (L&D 25) is located on the Upper Mississippi River at River Mile 241.4, in Lincoln County, Missouri, and Calhoun County, Illinois, and is operated by the U.S. Army Corps of Engineers (USACE), St. Louis District (MVS). All fabrication shall be performed at the contractor's facility. All physical deliverables shall be delivered to the Government, per Section 14.

2. PROJECT BACKGROUND AND DESCRIPTION.

The Navigation Ecosystem Sustainability Program (NESP) is a Congressionally authorized program to improve navigation infrastructure and ecosystem quality on the Upper Mississippi River System. The primary NESP component at L&D 25 is construction of a new 1,200-foot lock chamber adjacent to the existing 600-foot lock chamber. This new chamber will allow standard 15-barge tow configurations to transit in a single lockage, eliminating the current requirement to split tows across two lockages through the existing 600-foot lock.

The new lock is constructed in-the-wet using concrete monoliths founded on drilled shafts. The model depicts existing conditions alongside the new construction, allowing observers to distinguish the two conditions at a glance.

The physical scale model will serve as a communication and outreach tool for the L&D 25 Project Delivery

Team (PDT), for technical briefings, and for external stakeholder engagements. Because the model will be used in conference room settings, it must meet demanding requirements for visual quality and transportability.

3. GENERAL DESCRIPTION OF SERVICES.

The contractor shall furnish all labor, materials, equipment, transportation, and services necessary to design, pre-process, fabricate, finish, package, and deliver one (1) complete 3D-printed physical scale model of the L&D 25 NESP New 1,200-Foot Lock Project (the Project) in full conformance with this SOW.

The contractor shall determine its own methods, technologies, and fabrication approach, provided all performance requirements are met upon delivery. The Government will not prescribe printer type, material brand, layer height, or any other means and methods. Government-furnished information (GFI) is described in Section 5.0. All work shall conform to the references in Section 4.0, and all deliverables shall be submitted per Section 12.0.

4. REFERENCES.

Federal, State, and Industry Standards.

The following references are cited in this SOW. All applicable Federal, State, and industry standards referenced herein, and any not listed but applicable to the work, constitute performance criteria.

a) Revolutionary Federal Acquisition Regulation Overhaul (RFO) Part 46, Quality Assurance

b) RFO 52.247-34, F.o.b.Destination

c) Defense Federal Acquisition Regulation Supplement (DFARS) 252.227-7013, Rights in Technical Data – Noncommercial Items

d) USACE Engineer Manual (EM) 385-1-1, Safety and Health Requirements Manual

5. GOVERNMENT-FURNISHED INFORMATION.

5.1 Description of Government-Furnished Information.

The Government will furnish the contractor with digital design files representing the Project at the final stage of design, as well a 3D model of a standard 15-barge tow. These files will be provided in both NavisWorks (NWD/NWC format) and Standard for the Exchange of Product Data (STEP) format. The Lock & Dam 25 Project file will be provided in NavisWorks (NWD) format and the 15-barge tow model will be provided in Rivet (RFA) format. The furnished files represent the full project geometry defined in Section 6.2 of this SOW. The Government makes no warranty that the furnished files are free of overlapping geometry, internal geometry, or construction detail that may require pre-processing effort by the contractor prior to fabrication. The contractor is responsible for all pre-processing work necessary to convert the furnished files into a format suitable for fabrication, as described in Section 8.0 of this SOW, and shall account for this effort in its technical approach and price.

5.2 Delivery of Government-Furnished Information.

The Government will provide the GFI, via DoD SAFE, to all prospective offerors electronically during the solicitation period, via a method determined by the Contracting Officer (KO) upon written request from the contractor to the Contracting Specialist at catherine.a.hansen@usace.army.mil. Prospective offerors may send a request for the files until 10:00AM CST on August 24, 2026. The contractor shall confirm receipt of and access to the GFI files in writing to the Contracting Officer’s Representative (COR) within two (2) calendar days of contract award. The contract award and the Notice to Proceed (NTP) are concurrent unless the Contracting Officer (KO) expressly provides otherwise in writing at the time of award.

5.3 Government-Furnished Information Handling Requirements.

The contractor shall restrict access to the GFI to only those contractor and subcontractor personnel who require access to perform work under this contract, shall store the files on systems not accessible to unauthorized personnel, and shall not transmit the files via unsecured channels or disclose them to any party outside the contractor's organization without the prior written approval of the KO.

6. TECHNICAL REQUIREMENTS – MODEL SPECIFICATIONS.

6.1 Scale and Physical Dimensions.

The assembled model shall have an approximate footprint of two and one-half (2.5) feet in width by eight

(8) feet in length when fully assembled on a flat, level surface, reflecting the approximate prototype dimensions of approximately 500 feet in width (land wall to third tainter gate) by approximately 1,600 feet in length (intermediate wall) at the 1:200 scale established in this section. These dimensions are approximate. The contractor shall confirm the anticipated assembled footprint based on the GFI geometry and any assumptions made to optimize the model for stakeholder presentation and shall document the confirmed footprint in the Pre-Processing and Design Review Package required by Section 11.3.

Allowable dimensional tolerance for the fully assembled model shall be plus or minus one (1) inch in any direction from the contractor's confirmed target footprint as approved by the Government. Individual segments shall be fabricated to tolerances sufficient to ensure the overall model meets this tolerance and that all segment interfaces align without visible gaps exceeding one (1) millimeter.

6.2 Model Scope and Extent.

Figure 1: Project Feature Diagram

The physical model shall represent the following elements at 1:200 scale, as depicted in the GFI and as shown in Figure 1. In the event of any conflict between Figure 1 and the text of this section, the text governs.

a) The land wall of the existing lock structure, bounded upstream by the upstream face of the intermediate wall and bounded downstream by the downstream face of the intermediate wall. The land wall shall not extend beyond these limits in either direction.

b) The intermediate wall, representing the full extent of the intermediate wall separating the existing 600-foot lock chamber from the new 1,200-foot lock chamber.

c) The river wall of the new 1,200-foot lock chamber, representing the full extent of the river wall within the project footprint.

d) The first three (3) tainter gates of the L&D 25 dam, located immediately adjacent to the lock complex.

e) The existing 600-foot lock chamber and existing miter gates, represented in sufficient detail to allow a non-technical observer to understand the chamber's dimensions and operational configuration. The existing 600-foot lock chamber and the new 1,200-foot lock chamber shall be clearly and independently identifiable on the assembled model by visual inspection alone.

f) The new 1,200-foot lock chamber and new miter gates.

g) A to-scale model of a standard 15-barge tow.

h) The water plane at an elevation of 433.6 feet. The method of depiction is at the contractor's discretion, provided that an observer can readily identify the location of the typical water plane at a normal viewing distance.

The guard walls are excluded from the model scope.

6.3 Modular Components.

The model shall depict all new work through a removable monolith system. All new monolith components shall be removable and shall attach to the model base using the method described in Section 9.3. All new work and existing conditions shall be depicted to the extent that features can be accurately represented at 1:200 scale. The contractor shall identify any features that cannot be accurately represented at 1:200 scale in the Pre-Processing and Design Review Package for Government approval prior to fabrication. All monolith components, both existing and new, shall be numbered for identification purposes. The numbering scheme shall be proposed by the contractor and submitted for Government approval as part of the Pre-Processing and Design Review Package.

Figure 2: This figure depicts the extent and location of new work relative to existing conditions and is provided for illustrative purposes only.

6.4 Functional Requirements.

a) Miter Gates. Both miter gate sets shall be functional, opening and closing in a manner representative of actual miter gate operation, throughout the operational life of the model.

b) 15-Barge Tow. The model shall include a to-scale representation of a standard 15-barge tow, which consists of the fifteen (15) standard barges, as well as the towboat. The individual barge components shall be removable and positionable on the model surface to allow a presenter to demonstrate the following two (2) navigation scenarios: (1) the split-tow configuration, in which the tow is divided into two groups transiting the existing 600-foot lock in two separate lockages;

and (2) the single-lockage configuration, in which the full 15-barge tow transits the new 1,200-foot lock in a single lockage. The two sections of the 15-barge tow should be connected using some interlocking mechanism, such that the connection between the two sections is secure and stable.

The Government will provide a 3D model of a standard 15-barge tow as part of the GFI described in Section 5.1. The contractor shall fabricate the barge components from the furnished geometry.

Barge components shall be removable and positionable on the model surface to allow a presenter to demonstrate the split-tow and single-lockage navigation scenarios described in this section. The contractor shall confirm the barge tow configuration and fit within both lock chambers at the correct scale in the Pre-Processing and Design Review Package required by Section 11.3, for Government review and approval prior to fabrication.

6.5 Material and Finish Performance Standards.

All materials, coatings, and finishes shall meet the following performance standards over a five (5)-year indoor operational life. No specific material brand, filament type, or printer technology is mandated.

a) Dimensional stability under typical indoor ambient temperature and humidity; no warping, sagging, or delamination.

b) Resistance to indoor UV exposure sufficient to prevent significant color fading or surface degradation.

c) Non-brittle under anticipated assembly, disassembly, transport, and presentation handling loads, including repeated monolith installation and removal and repeated miter gate operation.

d) All accessible surfaces safe to touch; free of sharp edges, loose material, and surface conditions that could cause injury.

e) All applied paints, coatings, primers, and adhesives low in volatile organic compounds (VOC) and suitable for indoor display without inhalation or contact hazard.

f) Stability of the fully assembled model on a flat conference room table without external supports.

g) Surface finish sufficient for a non-technical observer to clearly distinguish all major features.

Visible layer lines are acceptable provided they do not obscure features or create an unprofessional appearance.

6.6 Identification Placard and Color Legend.

The contractor shall furnish an identification placard and a color legend mounted on or affixed to the model base. The placard shall include, at a minimum, the following elements:

a) Full project name: Lock and Dam 25 NESP New 1,200-Foot Lock Project

b) Model scale: 1:200

c) Issuing organization: U.S. Army Corps of Engineers, St. Louis District

d) A north-seeking arrow oriented relative to the model's physical layout

e) A river flow direction indicator (e.g., an arrow labeled "River Flow") oriented relative to the model's physical layout and consistent with the north-seeking arrow

The placard design shall be submitted as part of the color and labeling scheme in the Pre-Processing and Design Review Package required by Section 11.3, for Government review and approval prior to fabrication.

The color legend shall identify the two colors used on the model in accordance with Section 8.3. The legend shall be a durable laminated insert included in the first transport case and incorporated into the assembly and disassembly instructions required by Section 7.4 and is subject to Government approval prior to fabrication.

7. TECHNICAL REQUIREMENTS – SEGMENTATION AND TRANSPORTABILITY.

7.1 Segmentation Plan

The contractor shall prepare and submit a Segmentation Plan as part of the Pre-Processing and Design Review Package described in Section 11.3. Fabrication of the physical model shall not commence until the Government has provided written approval of the Segmentation Plan. The Segmentation Plan shall describe, at a minimum, the following:

a) Proposed number, dimensions, and approximate weight of each segment, demonstrating all segments are transportable in a standard consumer SUV when loaded per Section 7.2.

b) Proposed strategy for aligning segment boundaries with natural model divisions to avoid bisecting critical features.

c) Proposed connection and alignment system at each segment interface, demonstrating conformance with the dimensional tolerance in Section 6.1 and durability under repeated assembly cycles.

d) Proposed strategy for accommodating removable monolith components (Section 6.3) and miter gate mechanisms (Section 6.4(a)) within the segmentation scheme without compromising their function or durability.

e) A diagram or rendering of the proposed segmentation scheme, viewable without specialized software.

The Government will review the Segmentation Plan in accordance with the turnaround commitment established in Section 12.3. The contractor shall revise and resubmit the Segmentation Plan within a timeframe consistent with its production schedule until written approval is received.

7.2 Transport Cases and Internal Protection.

The contractor shall procure and furnish protective transport cases sufficient to contain all model segments, removable monolith components, barge tow components, assembly hardware, and accompanying documentation when the model is fully disassembled for transport. The transport cases shall meet the following performance requirements:

a) Rugged and watertight; capable of protecting contents during transport in a standard consumer

SUV.

b) Each case shall be lockable, to prevent inadvertent opening during transport.

c) Individual loaded case weight not to exceed fifty (50) pounds; liftable by one person without mechanical assistance.

d) Each case shall be equipped with integrated wheels and a retractable handle to facilitate transport by a single person without mechanical assistance.

e) Custom internal support system preventing component movement exceeding one (1) inch in any direction and protecting all surfaces from contact damage.

f) All cases shall fit simultaneously in a standard consumer SUV cargo area without roof racks or external carriers. Total case count determined by the contractor per the approved Segmentation Plan.

7.3 Case and Component Labeling.

All cases, segments, and components shall be labeled clearly and durably to allow an inexperienced presenter to correctly identify, unpack, assemble, and repack all components using only the instructions required by Section 7.4. Labels shall include, at a minimum:

a) Each transport case shall bear an exterior label identifying the case by a unique alphanumeric identifier, and the project name.

b) Each model segment shall bear a permanent, durable identifier on a non-display surface identifying the segment by a unique alphanumeric identifier that corresponds to the assembly diagram included in the assembly and disassembly instructions.

c) Each removable monolith component shall bear a permanent, durable identifier corresponding to the monolith numbering system used in the Government-furnished design files.

d) Each transport case shall contain an interior packing diagram, laminated or otherwise durably printed, identifying the correct position and orientation of each segment or component.

e) Orientation marks shall be applied to all cases and segments where orientation is relevant to preventing damage during transport or storage.

7.4 Assembly and Disassembly.

The physical model shall be designed such that a single person, without specialized tools or prior technical training, can fully assemble the model from its transport cases to its operational tabletop configuration, and fully disassemble and repack the model into its transport cases, using only the assembly and disassembly instructions outlined below. The assembly and disassembly process shall not permanently alter, damage, or degrade any model component or the model base, and shall not require any action that would prevent the model from being fully reassembled to its original configuration an indefinite number of times throughout the operational life of the model.

The fully assembled model shall be stable on a standard flat conference room table surface, without rocking, flexing, or requiring external supports, under the static loads imposed by a presenter leaning on or gesturing at the model during a briefing.

The contractor shall prepare and deliver assembly and disassembly instructions as a formal deliverable under this contract. The instructions shall meet the following requirements:

a) The instructions shall be written and illustrated such that a single person, without specialized tools or prior technical training, can fully assemble and disassemble the model using the instructions alone, without supplemental guidance.

b) The instructions shall include, at a minimum: a component inventory list keyed to the alphanumeric identifiers required by Section 7.3; a step-by-step assembly sequence with diagrams or photographs for each step; a step-by-step disassembly and repacking sequence;

and a reference to the interior packing diagrams required by Section 7.3(d).

c) The contractor shall deliver two (2) printed copies and one (1) electronic copy (PDF format) of the instructions. One printed copy shall be included in the first transport case. The second printed copy and the electronic copy shall be delivered to the COR at the time of physical delivery.

d) The instructions shall be submitted as a draft to the COR no later than five (5) calendar days prior to the delivery inspection required by Section 13.1, for Government review. The contractor shall incorporate any Government comments prior to delivering the final printed copies.

8. TECHNICAL REQUIREMENTS – PRE-PROCESSING.

8.1 Conversion of Government Furnished Files.

The contractor shall convert the GFI into a format suitable for fabrication using the contractor's chosen additive manufacturing technology and workflow.

The conversion of the furnished NavisWorks and STEP Rivet files to a fabrication-ready format is a significant pre-processing effort that may require multiple iterations. The contractor shall account for this effort in its technical approach and price. The Government will not issue contract modifications to compensate for pre-processing effort that is within the reasonable scope of converting the furnished files to the deliverable described in this SOW, unless the Government makes a material change to the scope of the GFI after contract award.

8.2 Flat-Bottom Geometry Modification.

The Government-furnished NavisWorks and STEP Rivet files represent the L&D 25 project as designed for in-the-wet construction, including subsurface geometry, drilled shaft foundations, and other below-grade features that are not relevant to the physical model's intended display configuration. The finished model shall have a flat, level bottom surface suitable for stable placement on a conference room table, without representing subsurface or below-grade features that would not be visible or relevant. The contractor shall document the proposed truncation elevation and the resulting base geometry in the Pre-

Processing and Design Review Package for Government review and approval prior to fabrication.

8.3 Color and Labeling Scheme Development.

The contractor shall develop a proposed color and labeling scheme for the physical model and shall submit the proposed scheme as part of the Pre-Processing and Design Review Package described in

Section 11.3 of this SOW. The proposed scheme shall address the following:

a) The contractor shall propose two colors: one for all existing conditions and a second for all new construction. The two colors shall be sufficiently distinct that an observer can readily differentiate existing conditions from new construction at a normal viewing distance, yet sufficiently similar in tone that the completed model reads as a single cohesive whole. The contractor shall include a Pantone or RAL reference for each proposed color.

b) The Pantone or RAL references required by subsection (a) shall serve as the color standard for all print runs and post-processing color correction.

c) A proposed design for the identification placard described in Section 6.6 of this SOW, including proposed text, dimensions, material, and placement location on the model.

d) A proposed design for the color legend described in Section 6.6 of this SOW, including proposed format, content, and dimensions.

The contractor shall not order specialty color materials or commence color-dependent fabrication activities until the Government has provided written approval of the color and labeling scheme.

9. TECHNICAL REQUIREMENTS – POST-PROCESSING AND QUALITY.

9.1 Support Removal, Trimming, and Finishing.

The finished model shall be free of all fabrication artifacts, residue, and surface defects arising from the contractor's chosen fabrication process. All surfaces accessible to a presenter or observer during normal display and handling shall be finished to a quality consistent with the model's intended use.

9.2 Miter Gate Functional Performance.

Both miter gate sets shall meet the following performance standards:

a) Each gate set shall open and close smoothly through the full range of motion without binding, catching, or requiring excessive force.

b) Each gate mechanism shall withstand repeated open and close cycles throughout the five (5)-year operational life of the model without loosening, warping, binding, or structural failure.

c) The Government will cycle each gate set through a minimum of five (5) complete open-and-close cycles during the physical delivery inspection (Section 13.2(d)).

9.3 Removable Monolith Component Performance.

All removable monolith components shall meet the following performance standards in the finished model:

a) Each removable monolith component shall seat firmly and without visible misalignment when installed in its correct position on the model, such that a non-technical observer perceives the installed component as a seamless, stable part of the overall model assembly.

b) Each removable monolith component shall be removable quickly and easily by hand, without tools, without excessive force, and without disturbing adjacent components or the model base, so that a presenter can add and remove components fluidly.

c) Each removable monolith component shall be capable of repeated installation and removal throughout the operational life of the model without degradation of the attachment method.

9.4 Color Consistency.

All model components shall exhibit color consistency within each color treatment and across all model features subject to a consistent color treatment, in conformance with the approved color and labeling scheme.

10. DIGITAL DELIVERABLES.

The contractor shall deliver the following digital documents to the COR via email or Government-approved electronic file transfer, at times consistent with the contractor's approved production schedule and the milestone requirements established in Section 11 of this SOW:

a) Quality Control Plan (QCP), as described in Section 11.2 of this SOW, submitted as a PDF document.

b) Pre-Processing and Design Review Package, as described in Section 11.3 of this SOW, submitted as a PDF document, including all required sub-elements.

c) Fabrication Conformance Demonstration package, as described in Section 11.4 of this SOW, submitted as high-resolution digital photographs (minimum 3,000 × 2,000 pixels per image) in JPEG or PNG format, accompanied by a written summary of conformance findings in PDF.

d) Packing and Shipment Documentation, including a complete packing list identifying every item included in each transport case, submitted as a PDF document to the COR at the time of shipment, together with carrier tracking information for all cases.

11. CONTRACTOR SUBMITTALS AND GOVERNMENT REVIEW.

11.1 General.

The following submittals are required to verify conformance with this SOW. Unless a submittal is identified as a prerequisite to a subsequent phase of work, the contractor shall determine the timing of all submittals consistent with its production schedule.

11.2 Quality Control Plan.

The contractor shall submit a Quality Control Plan (QCP) to the COR no later than ten (10) calendar days after contract award. The QCP shall address, at a minimum:

a) The quality control checkpoints the contractor will apply throughout its production process, and the criteria the contractor will use at each checkpoint to determine whether work meets the requirements of this SOW.

b) The roles and responsibilities of contractor personnel assigned to quality control functions, demonstrating that quality control responsibilities are assigned to personnel independent of the production personnel performing the work being reviewed.

c) The contractor's process for identifying, documenting, and resolving nonconformances discovered during production, and the process for notifying the Government of any nonconformance that may affect delivery schedule, cost, or technical performance.

d) The contractor's approach to managing subcontractor quality, if subcontractors are used for any portion of the work.

e) The names, titles, and areas of responsibility of key contractor personnel assigned to this contract.

f) The contractor's production schedule, as required by Section 12.2 of this SOW.

11.3 Pre-Processing and Design Review Package.

Prior to commencing fabrication, the contractor shall submit a Pre-Processing and Design Review

Package to the COR demonstrating conformance with the pre-processing requirements of this SOW. This package is a prerequisite to Government authorization to commence fabrication. The package shall demonstrate compliance with the following sections, at a minimum:

Required Demonstration Governing Section

GFI conversion: geometry accurately represents model scope at 1:200 scale;

summary of significant conversion decisions and rationale 8.1

Segmentation plan: segment count, dimensions, weight, connection system, SUV transportability, and segmentation diagram 7.1

Color and labeling scheme: Pantone or RAL references for each color used on the model; water plane depiction approach; placard and legend designs 8.3

Flat-bottom geometry modification: proposed truncation elevation and base geometry diagram 8.2

Barge tow design: proposed plan dimensions at model scale and configuration diagram 6.4(b)

Confirmed model footprint dimensions 6.1

11.4 Fabrication Conformance Demonstration.

Before packaging and shipping, the contractor shall submit a Fabrication Conformance Demonstration to the COR with sufficient evidence (through photos, video, dimensional check records, functional test records, or any combination) to allow the Government to verify, without a facility visit, that the completed model conforms to all technical requirements. The contractor shall not package or ship the model until the

Government has provided written approval. If deficiencies are identified, the contractor shall correct them and resubmit within a timeframe consistent with the production schedule and period of performance.

12. SCHEDULE.

12.1 Period of Performance.

The period of performance is ninety (90) calendar days from contract award. This is inclusive of all Government review periods and applies to all deliverables required under this SOW.

12.2 Contractor Production Schedule.

The contractor's production schedule shall demonstrate, at a minimum:

a) Government review periods incorporated: five (5) business days per submittal review cycle; ten

(10) business days for physical delivery inspection; at least one (1) revision cycle per submittal.

Government review periods are embedded within and do not extend the 90-calendar-day period of performance. The Government shall review and provide written acceptance or comments within five (5) business days of each deliverable submission.

b) Pre-Processing and Design Review Package submitted sufficiently in advance of fabrication start to allow for Government review and approval.

c) Fabrication Conformance Demonstration submitted sufficiently in advance of shipment to allow for Government review and approval.

The Government will review the production schedule as part of the QCP review. The contractor shall notify the COR in writing within two (2) business days of identifying any schedule risk, with proposed corrective action.

12.3 Government Review Turnaround Commitment.

The Government will review all contractor submittals required by Section 11.0 within five (5) business days of receipt and will complete the physical delivery inspection within ten (10) business days of delivery.

The contractor shall incorporate these Government review periods into its production schedule. The KO will assess any schedule impact claims resulting from Government review delays and will take appropriate action, which may include a contract modification if the delay is attributable to the Government and material to the contractor's ability to meet the delivery date.

13. INSPECTION, ACCEPTANCE, AND CONFORMANCE.

13.1 General Inspection Authority.

Inspection and acceptance shall be performed per RFO Part 46 and the criteria established in Section

13.2. The COR (or KO until designated) shall conduct all inspections. The COR is authorized to inspect the contractor's facility and work in progress at any stage of performance, which can include, but is not limited to, additive manufacturing and printing operations, post-processing and finishing activities, assembly and fit-check operations, and transport case preparation and packing. The contractor shall cooperate with all inspection activities and provide reasonable access to facilities, work in progress, and documentation upon two (2) business days advance notice. In-progress inspections do not constitute acceptance.

13.2 Physical Delivery Inspection and Acceptance Criteria.

Upon delivery of the physical model, the Government will conduct a physical inspection of all delivered items within ten (10) business days of delivery. The Government will evaluate all delivered items against the following acceptance criteria:

a) Dimensional Conformance: Assembled footprint within ±1 inch of confirmed target footprint (Section 6.1); segment interfaces without visible gaps exceeding 1 mm. Verified by tape measure at four (4) or more control points.

b) Model Scope Conformance: All elements per Section 6.2 present. Verified by visual inspection against approved Pre-Processing and Design Review Package.

c) Modular Component Conformance: All removable monolith components present, correctly numbered, and finished per the approved color and labeling scheme. The Government will install and remove a sample of not less than ten (10) components; any attachment failure constitutes a nonconformance requiring correction of all affected components.

d) Functional Gate Conformance: Both miter gate sets open and close smoothly per Section 9.2.

Government will cycle each gate set through five (5) complete open-and-close cycles.

e) Barge Tow Conformance: All fifteen (15) barge components present and positioned in both navigation configurations per Section 6.4(b) during inspection.

f) Surface Finish and Safety Conformance: All accessible surfaces free of sharp edges, loose material, and fabrication artifacts per Sections 6.5(d).

g) Color and Labeling Conformance: Color scheme, placard, and legend conform to approved scheme.

h) Transport Case and Packaging Conformance: All cases present per approved Segmentation Plan; internal support, packing diagrams, and labeling per Section 7.2.

i) Assembly and Disassembly Conformance: Copies of the assembly and disassembly instructions, per Section 7.4, are present, legible, and consistent with the delivered model configuration.

Touch-up materials sufficient to correct minor surface finish damage, including paint or coating materials matched to the approved color scheme, are present and labeled for intended use.

13.3 Acceptance and Rejection.

If all acceptance criteria in Section 13.2 are met, the KO will issue written acceptance. Acceptance does not waive the warranty in Section 16.0.

If any criterion is not met, the Government will issue written notice of nonconformance within the ten (10)-business-day inspection period, identifying each deficiency. The contractor shall submit a corrective action plan to the COR within five (5) business days; the Government will respond within three (3) business days.

13.4 Nonconformance Correction.

The contractor shall correct all nonconformances attributable to its own work and return corrected deliverables for re-inspection at no cost to the Government. All correction, repackaging, and re-delivery costs are the contractor's responsibility.

14. SHIPPING AND DELIVERY.

14.1 Delivery Terms.

All physical deliverables shall be delivered per RFO 52.247-34. Title and risk of loss pass to the

Government upon written acceptance following inspection per Section 13.0.

14.2 Delivery Address.

All physical deliverables shall be delivered to the following address:

U.S. Army Corps of Engineers, St. Louis District, Attention: [COR Name, to be designated at contract award] 1222 Spruce Street St. Louis, Missouri 63103

The contractor shall coordinate the specific delivery date and time with the COR a minimum of five (5) business days in advance of the planned shipment date, to ensure that a Government representative is available to receive the delivery. Deliveries that arrive without advance coordination and without a

Government representative available to receive them shall be the contractor's responsibility to reschedule, at no additional cost to the Government, within the period of performance.

14.3 Carrier Requirements and Transit Insurance.

The contractor shall use a reputable commercial carrier experienced with high-value fragile cargo and shall obtain full replacement value transit insurance with a declared value not less than the total contract value. The contractor shall monitor the shipment and notify the COR immediately of any delay, damage, or loss. The contractor is responsible for all repair or replacement costs for transit damage or loss prior to

Government acceptance.

14.4 Shipment Documentation.

The contractor shall provide the COR via email at the time of shipment:

a) A complete packing list identifying every item included in each transport case, organized by case identifier, consistent with the interior packing diagrams required by Section 7.3(d) of this SOW.

b) The bill of lading or carrier receipt for all cases, confirming tender of the shipment to the carrier.

c) Carrier tracking number or numbers for all cases included in the shipment.

d) A copy of the transit insurance certificate, confirming full replacement value coverage for the shipment.

15. DATA RIGHTS, CYBERSECURITY, AND INTELLECTUAL PROPERTY.

15.1 Government Property Rights in Government-Furnished Information.

All Government-furnished NavisWorks and STEP Rivet files, all design data contained therein, and all derivative geometry, mesh files, or converted file formats produced by the contractor from the

Government-furnished files during pre-processing, remain the exclusive property of the Government during and after the period of performance. The contractor's right to use the Government-furnished files and any derivatives thereof is limited solely to the performance of work required under this contract. The contractor shall not use, reproduce, or disclose the GFI or any derivative for any purpose beyond contract performance, including marketing, portfolio display, or work on other contracts — without the prior written approval of the KO.

15.2 Government Purpose Rights in Contractor-Generated Fabrication Files.

The Government shall acquire Government Purpose Rights, as defined in DFARS 252.227-7013, in all digital fabrication files delivered under Section 10, including segmented 3D model files, geometry conversion files, and segmentation design files. The contractor shall mark all such files with a

Government Purpose Rights legend per DFARS 252.227-7013. The contractor's proprietary fabrication processes, slicer settings, and toolpath methodologies that are not delivered as required digital deliverables remain the contractor's proprietary information.

15.3 Conflict of Interest.

By entering into this contract, the contractor agrees not to participate as an offeror, subcontractor, or consultant on any other Government contract in a capacity in which the information received or developed under this contract would provide an unfair competitive advantage, for a period of three (3) years following the date of final acceptance under this contract. The contractor agrees not to disseminate, disclose, or make available any GFI or any information developed under this contract that is proprietary to the Government to any source outside the contractor's organization without the express prior written permission of the KO. The contractor shall ensure that all contractor and subcontractor personnel with access to GFI or Government-proprietary information developed under this contract are informed of the handling requirements established in Section 5.3 and the conflict of interest obligations established in this section, and that such personnel comply with those requirements as a condition of their access. The provisions of this section shall be incorporated into all subcontracts and tiers of subcontracts involving access to GFI or Government-proprietary information.

15.4 Release of Information.

The contractor shall not release, publish, present, display, or otherwise make available to the public or to any third party any information, images, photographs, or descriptions of the work performed under this contract, or of the deliverables produced thereunder, without the express prior written consent of the KO.

This restriction applies specifically to the use of photographs or descriptions of the physical model or its components in the contractor's marketing materials, portfolio, website, trade publications, or social media.

16. WARRANTY.

16.1 General Warranty.

The contractor warrants that the physical model and all components, transport cases, and accompanying items shall be free of defects in materials and workmanship for one (1) year from the date of final written acceptance. This warranty covers, at a minimum:

a) Structural defects: cracking, fracturing, delamination, or warping under normal indoor display and handling conditions.

b) Functional defects in miter gate mechanisms: binding, loosening, misalignment, or failure under normal repeated operation.

c) Attachment mechanism defects in any removable monolith component: loosening, misalignment, or failure under normal repeated installation and removal.

d) Finish and coating defects: significant peeling, flaking, or delamination under normal indoor ambient conditions.

e) Segment connection system defects: failure, loosening, or degradation under normal repeated assembly and disassembly.

16.2 Warranty Remedy.

The contractor shall repair or replace any defective item at no cost to the Government, including all labor, materials, and shipping. The contractor shall propose a repair or replacement timeline to the KO within five (5) business days of written notice of defect and shall obtain KO approval before commencing work.

16.3 Warranty Limitations.

The warranty does not cover:

a) Physical impact, dropping, or mechanical damage by Government personnel after acceptance.

b) Exposure to conditions outside normal indoor ambient range (direct sunlight, extreme temperatures, water, chemical agents).

c) Modification or repair by Government personnel or third parties without the contractor's written consent.

d) Normal wear consistent with anticipated use frequency.

16.4 Subcontractor Warranties.

The contractor is responsible to the Government for all warranty obligations regardless of whether a defect originates with the prime contractor or a subcontractor. Subcontractor warranties shall be coextensive with this section. The contractor shall not direct the Government to pursue claims directly against subcontractors.

17. COORDINATION AND CONTRACT ADMINISTRATION.

17.1 Contractor Project Manager.

The contractor shall assign a Project Manager, identified by name, title, phone, and email in the QCP, who serves as the single point of contact for all contract matters and has authority to make binding decisions without escalation. The Project Manager shall be available by phone and email during normal business hours (8:00 a.m.–5:00 p.m. Central Time, Monday–Friday, excluding Federal holidays) and shall respond to Government communications within one (1) business day. The contractor shall contact the COR (or KO if not yet designated) before proceeding with any situation not addressed by this SOW. The Project

Manager shall not be replaced without prior KO written approval; replacement requests shall be submitted with the proposed replacement's name and qualifications a minimum of ten (10) calendar days in advance, except in emergencies.

17.2 Contracting Officer's Representative.

The Contracting Officer's Representative (COR) will be designated by the KO at contract award. The

COR is authorized to provide technical direction and to review submittals and inspect work per Sections

11.0 and 13.0. The COR is not authorized to issue modifications, change contract scope, or waive requirements. Only the KO has that authority. Until the COR is designated, the contractor shall direct all correspondence to the KO, and shall update all contact information within two (2) business days of receiving written COR designation.

17.3 Contracting Officer Authority.

The KO is the sole Government official authorized to modify the contract. No verbal, or written, direction from any Government representative constitutes a modification or the basis for a claim for additional compensation or schedule relief. The contractor shall obtain written KO authorization before undertaking any work it believes may be outside the scope of this SOW.

17.4 Subcontractor Coordination and Disclosure.

The contractor shall identify all proposed subcontractors in the QCP submitted pursuant to Section 11.2 of this SOW, including the name of each subcontractor, the scope of work to be performed by each subcontractor, and the estimated percentage of total contract value to be performed by each subcontractor. The Government does not require prior approval of subcontractors under this contract. The contractor shall notify the KO in writing if it proposes to use a subcontractor not identified in the QCP.

The contractor shall ensure that all subcontractors performing work under this contract are bound by the applicable requirements of this SOW. The prime contractor shall remain fully responsible to the

Government for all work performed by subcontractors, and the Government will hold the prime contractor accountable for subcontractor performance as though the work were performed directly by the prime contractor.

17.5 Contractor Liability.

The contractor assumes all liability for damages to either property or equipment caused by contractor personnel during the performance of this contract. The contractor also assumes full responsibility for ensuring the safety of its personnel while engaged in the performance of work under this contract. The

Government shall not be liable for any injury to contractor personnel or damage to contractor property or equipment that occurs during contract performance, except to the extent directly attributable to the

Government's own negligence or intentional misconduct.

18. SAFETY REQUIREMENTS.

18.1 Compliance with EM 385-1-1.

The contractor and all subcontractor personnel shall comply with EM 385-1-1 (most recent edition), all applicable MVS safety policies, and all applicable Federal, state, and local occupational safety and health regulations.

18.2 Material Safety.

The contractor shall retain Safety Data Sheets (SDS) for all materials and make them available upon request. All applied paints, coatings, and adhesives shall be fully cured and shall not emit VOCs at levels presenting an air quality concern in a normally ventilated conference room. The contractor shall confirm

VOC compliance in the QCP.

18.3 Fabrication Safety.

The contractor shall maintain a safe working environment at all fabrication facilities used in the performance of this contract, consistent with all applicable Occupational Safety and Health Administration

(OSHA) regulations and EM 385-1-1 requirements. All additive manufacturing equipment, post-processing tools, and finishing equipment shall be operated in accordance with manufacturer safety guidelines and applicable regulatory requirements. The contractor is solely responsible for the safety of its personnel and subcontractor personnel at all contractor-operated fabrication facilities.

18.5 Waste Disposal.

The contractor shall dispose of all fabrication waste, including support material, scrap filament, failed prints, chemical waste from adhesives and coatings, and foam offcuts, in accordance with all applicable

Federal, state, and local environmental regulations and waste disposal requirements. The contractor shall not dispose of any fabrication waste at any Government facility. All costs associated with waste disposal are the contractor's responsibility and shall be considered included in the contract price.