Holston Army Ammunition Plant

Holston Army Ammunition Plant
A main supplier of explosive materials to the Department of Defense

Community Alert: Large Delivery at Holston Army Ammunition Plant to Impact Morning Commute


The Holston Army Ammunition Plant and BAE Systems will be taking delivery of four large industrial boilers over the next two months. The arrivals of the oversized pieces of equipment will result in temporary road closures and likely traffic congestion during the morning commute hours travelling eastbound along Highway 11W in the Mount Carmel and Kingsport regions. BAE Systems is providing this information to the public so motorists who use this route at the scheduled timeframes can plan accordingly or map out alternate routes to minimize any inconvenience. The four shipments are planned to arrive in the morning hours on the following dates. Please check back regularly as these dates are subject to change.


February 24  |  March 16  |  April 6  |  April 27


To read more about the arrival of the boilers and how they will support modernization efforts at HSAAP, please read our advisory.


Spanning more than 6,000 acres in Kingsport, Tenn., the Holston Army Ammunition Plant is the major supplier of explosive materials (primarily RDX- and HMX-based products) to the U.S. Department of Defense. The facility has state-of-the-art equipment and capabilities for nitration chemistry, acid handling and recovery, and other chemical-processing operations.


Holston recently earned industry and national acclaim for producing IMX 101, the first in a family of “insensitive munitions.” Insensitive munitions are far more stable than conventional TNT and Composition B, making the weapons systems they support safer for troops to transport and handle.

Key Facts

  • Holston stretches more than 6,020 acres across two counties in Tennessee.  
  • There are over 450 buildings and storage magazines onsite.
  • The plant has 107 miles of roads and 30 miles of railroads.
  • Holston participates in the Armament Retooling and Manufacturing Support program, which leases onsite space to private companies.