LBNF/DUNE-US Far Detector and Cryogenics South Dakota Architectural and Engineering (A/E) Services

The Department of Energy Fermi National Accelerator Laboratory is soliciting full-service Architectural and Engineering (A/E) services to support the Long-Baseline Neutrino Facility/Deep Underground Neutrino Experiment (LBNF/DUNE) project's underground cryostat, cryogenics, and infrastructure installation at the Sanford Underground Research Facility (SURF) in Lead, South Dakota. The selected subcontractor must provide comprehensive A/E services including all necessary personnel, equipment, tools, materials, and supervision for the complex underground research facility development. This specialized engineering procurement focuses on technical installations related to cryogenic systems and site-specific building infrastructure for advanced scientific research capabilities. The solicitation has undergone multiple amendments extending deadlines, with the current proposal submission deadline set for October 20, 2025. The procurement specialist Brian McKenzie manages this opportunity under solicitation number RFP-LBNF-363922-BM and can be contacted at mckenzie@FNAL.GOV for additional information.

This procurement opportunity operates under the Engineering Services NAICS code 541330 and PSC category C1LC for tunnels and subsurface structures, with no set-aside designation applied. The contract work will be performed at the SURF site in Lead, South Dakota, requiring specialized expertise in underground facility construction and cryogenic system installation. The project represents a critical component of the broader LBNF/DUNE scientific research initiative, demanding extensive technical knowledge of complex underground research facility infrastructure development. Three amendments have been issued to date, with Amendment 03 posted as recently as October 15, 2025, indicating active procurement management and potential contractor interest. The solicitation documents do not specify contract values, award timelines, or incumbent contractors, though the technical complexity and specialized nature of the underground cryogenic facility work suggests this will be a substantial professional services engagement. The opportunity requires contractors capable of delivering sophisticated architectural and engineering solutions for one of the Department of Energy's major scientific research facilities.