Uranium Processing Facility


3:56 min.

Learn about Y-12’s new story: the Uranium Processing Facility, one of the largest construction projects in Tennessee history. UPF is an essential part of the National Nuclear Security Administration’s modernization efforts.

Current Status

Third-level walls, structural steel, and concrete roof slab placements are complete on the Main Process Building (MPB). All MPB East and West second-floor pipe racks have been delivered and installed and third floor pipe rack installation is underway. Installation of key process modules and gloveboxes is ongoing and additional process equipment will be delivered over the next several months.

Progress continues on heating and ventilation ductwork and fire protection piping on all three levels of MPB. Installation of the UPF perimeter security fencing is underway with the concrete foundation and walls placed on the west side and continuing to the north side of the construction site. Duct bank installation in front of the Construction Support Building (CSB) and storm drain installation near the haul road are ongoing. This work is part of the MPB scope and will continue to the north and east over the coming months.

The Salvage and Accountability Building (SAB) pipe and hanger installation along with electrical installation of supports and cable trays continues to progress on all three floors and will continue throughout the remainder of SAB construction. In addition, work continues on HVAC supports and ductwork, fire protection piping, fireproofing, and interior walls throughout the SAB. The Hazardous Liquid Processing Room (HLPR) stainless steel floor on level 2 is underway and is forecast for completion in November. In addition, the Fire Tank Pumphouse (FTP) foundation passed inspection and installation has started.

The Personnel Support Building (PSB) continues to take shape with the final installation of girt steel which allowed for roofing and siding installation has begun. In the basement of the PSB, fireproofing is complete and commodity installation of piping supports is underway in advance of installation of the elevated floor and commodities such as equipment pads, cable trays, and fire protection piping.

Work progresses in the Mechanical Electrical Building (MEB), as construction successfully turned over process water, the classified telecommunications network, and the public address system. The MEB team continues to focus on completion of pipe installation and instrumentation and is working to submit CD-4 completion by the end of 2021.

In the Process Support Facilities (PSF), work commenced on the architectural interior finishes, fire detection system, and cable installation. All four nitrogen tanks arrived and were installed during the month of October. In addition, work continues on storm water drainage, mechanical piping, the exterior truck bay area gas storage pad, fire protection piping, interior wall framing, and dry wall installation.