High Explosives Science and Engineering Facility continues to progress
An aerial view of the High Explosives Science and Engineering Facility.
The High Explosives Science and Engineering (HESE) Facility continues to achieve milestones as construction pushes forward to improve High Explosive (HE) operations here at Pantex.
The HESE main works (HESE MW) project began in April 2022 and has experienced two major challenges to construction. The first was a redesign of the HE Lab walls and elevated deck during construction. “Consolidated Nuclear Security (CNS), Burns & McDonnell (BMcD), and Hensel Phelps (HP) collaborated seamlessly to revise drawings, minimize project impacts, and allow construction to proceed on track,” said Katy Beyer, BMcD, Onsite Project Engineer. The second was funding issues associated with the FY24 continuing resolution that required stakeholders to deploy strategic scheduling activities to avert potential setbacks. “Through careful planning throughout the continuing resolution and great partnership with HP, the project was able to mitigate significant impacts to the schedule,” said Steve Kemp, subcontractor technical representative.
The project has overcome these challenges and as of July 2024, Hensel Phelps, the construction company assigned to the HESE MWs project, has placed all of the HE Lab walls. “At the onset of completing the final structural building components, the project is transitioning into interior buildout phases with a large focus on mechanical, electrical, and plumbing systems to support start up and commissioning activities,” said Cody Edwards, HP, Project Manager. The project is also targeting aggressively completion of the Technology Development & Deployment Laboratory (TD/DL) three months ahead of the overall project completion date.
In August 2024, BMcD, the construction company assigned to the HESE Firewater Pump & Tank, commenced erecting the fire water tank that will provide fire water for not only the TD/DL and HE Lab, but future projects such as High Explosives Synthesis, Formulation, and Production Facility.
Currently there are an average of 120 people per day working on the HESE MWs project and they have worked over 390,000 injury-free manhours. The HESE project has a total project cost of approximately $295 million, encompasses 72,762 square feet, and will replace about a dozen existing Cold War-era facilities when complete. It contains 1.3 million pounds of structural steel and is closing in on over 4 million pounds of reinforcing steel. More than 12,000 cubic yards of concrete will be used to build the HESE before project completion in August 2025.