HD Coldboxes Fabrication

The "HD Coldbox Steel Structure Procurement Specification" outlines the requirements for fabricating two, with an option for a third, identical 14-meter tall stainless-steel coldbox structures for the Long-Baseline Neutrino Facility (LBNF) / Deep Underground Neutrino Experiment (DUNE-US) project. These coldboxes will house active detectors (APAs) for cold testing in cryogenic conditions. The scope of work includes material procurement, fabrication, assembly, testing, packaging, and delivery to the South Dakota Warehouse Facility (SDWF) within six months. The vendor must adhere to detailed drawings and specifications, including strict quality control (QC) measures, dry-fit testing, and load-bearing beam tests. Pre-award and post-award submittals, along with comprehensive documentation, are mandated to ensure compliance with national standards for structural stainless steel and welding. The Fermi Forward Discovery Group (FFDG) will conduct interim and final inspections, requiring vendor cooperation and timely correction of any nonconformances.

Amendment No. 01 to Solicitation RFP 375613swk for HD Coldboxes Fabrication extends the due date for proposals to January 6, 2026, at 5 PM Central. This amendment also clarifies that the RFP is solely for fabrication and delivery, excluding installation, which will be addressed in a separate future RFP. Additionally, it states that alternative connection details for fabrication methods may be proposed, provided the overall product and design comply with the specified requirements. Bidders must acknowledge this amendment via SARC and PUR-466 or email, and any changes to previously submitted bids must reference both the Solicitation and this Amendment.

The Fermi Forward Discovery Group, LLC Subcontractor Annual Representations & Certifications (SARC) form is a crucial document for subcontractors seeking to engage with FermiForward on U.S. Government contracts. It requires detailed information about the offeror's ownership, operational structure (e.g., corporation, LLC, non-profit), business category (e.g., large, small, foreign, or various diversity classifications), and executive compensation. The form also assesses the offeror's accounting system and overall responsibility, including compliance with anti-trafficking laws and E-Verify requirements. Furthermore, it mandates certifications regarding equal opportunity, affirmative action programs, export/import control laws, and limitations on pass-through charges. Submitting this form signifies the offeror's commitment to comply with U.S. Government contracting and subcontracting programs and to promptly report any changes in status.

The Fermi Forward Discovery Group, LLC (FFDG) Proposal Certifications Document PUR-466 outlines mandatory certifications for offerors based on proposal dollar value. For proposals ≥ $10,000, certifications include Export/Import Control, requiring details on military/space applications, dual-use items, and other Commerce Control List items, along with Buy American—Construction Materials requirements. The Buy American clause defines domestic construction materials, COTS items, and criteria for domestic preference, including cost considerations and exceptions for foreign materials. For proposals ≥ $150,000, certifications cover Independent Price Determination, payments to influence federal transactions (Lobbying Disclosure Act), and responsibility matters (e.g., debarment, criminal offenses, delinquent federal taxes, contract terminations). Additionally, a certification on Employment Reports on Veterans is required. For proposals ≥ $550,000, certifications address Combatting Trafficking in Persons, particularly for work performed outside the United States and non-COTS items, requiring a compliance plan and due diligence regarding prohibited activities.

The document details the "COLDBOX ASSEMBLY" for the Physics Department / High-Energy Physics, likely as part of a federal government RFP or grant. This complex assembly comprises four quadrants, two door halves (top and bottom), and a monorail system, all constructed from Stainless Steel 304. The total assembly weighs over 36,500 lbmass (without hardware and welds) and is designed to be air-tight when bolted and welded. The file includes a comprehensive Bill of Materials, detailing various hex bolts, nuts, washers, and helical spring lock washers, all made from stainless steel and adhering to ASME and ANSI standards. Critical notes emphasize the need for burr and sharp edge removal, freedom from contaminants, and specific welding procedures (AWS D1.1/D1.6). Dimensions are provided in inches with millimeter references, and strict dimensional tolerances apply. The document also includes detailed drawings for the "COLDBOX-DOOR-HALF-TOP" and "COLDBOX-DOOR-HALF-BOT" sub-assemblies, outlining their internal and external rib structures and flanges. Revision history indicates updates based on PRR recommendations.

Fermi National Accelerator Laboratory (Fermilab), managed by Fermi Forward Discovery Group, LLC (FFDG), has issued Request for Proposal (RFP) #375613swk for the procurement of Stainless Steel (SS 304) Coldbox Structures. The RFP includes a base scope for two units and an alternate additive scope for an additional unit, with the decision on the alternate scope made upon final award. Proposals are due by December 19, 2025, at 5 PM Central. Bidders must submit a firm-fixed price proposal, including all freight charges for FOB Fermilab delivery, and complete required forms: SARC and PUR-466. Award will be based on a best value source selection, prioritizing the lowest price among technically acceptable offers. The work is conducted under Prime Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. All contractual questions should be directed to Spencer Keske, Procurement Specialist II.