Pine Bluff Chemical Agent Disposal Facility


Intermech, Inc. fabricated and installed the safety-critical and commercial-grade HVAC infrastructure throughout the Pine Bluff Chemical Agent Disposal Facility (PBCDF) under a quality program that closely mirrored NQA-1 standards while meeting all schedule and project budget requirements.

The sheet metal ductwork and supports fabrication was performed at a local fabrication facility that Intermech designed, mobilized, and operated in Pine Bluff. This localized fabrication facility solution was operational within 90 days of contract award and provided unique advantages to the project in terms of scheduling flexibility, rapid delivery responses, reduced transportation costs of fabricated ductwork, and an improved interface with project engineering and construction management versus using a remote manufacturing facility.

Intermech’s superior performance in the fabrication and installation of safety-critical HVAC systems has resulted in the successful award and completion of three additional major U.S. Army Chemical Demilitarization Facilities to date.

















The U.S. Army Corps of Engineers was in need of a state-of-the-art chemical agent disposal facility in Pine Bluff, AR. It would be a highly technical facility used for the destruction of chemical agents contained in various obsolete weapons in a safe and environmentally responsible manner. The primary mode of thermal destruction of these obsolete weapons would be by incineration.


Intermech was selected by Washington Group International, Inc. (WGI) to provide fabrication and installation of galvanized and welded stainless steel ductwork systems for supply, exhaust, and recirculation air distribution systems as well as fabrication and installation of seismic duct supports and hangers for all safety-critical systems on the project.

Intermech worked with the PBCDF’s design and engineering staff on the design and fabrication of the HVAC duct and supports (Intermech performed the detailed design work). After WGI’s approval, Intermech fabricated, installed, and performed critical leak testing of the HVAC systems.

Because of the toxic and hazardous nature of the substances being processed at the PBCDF, the quality of the work performed was similar to nuclear quality standards and was under extensive quality review by various government agencies.


The U.S. Army Corps of Engineers provides engineering services to customers in more than 130 countries around the world. Environmental sustainability is a guiding principle as they innovate and work to strengthen U.S. security through building and maintaining America’s infrastructure. Their work includes researching and developing technology, using engineering expertise to promote stability and improve quality of life, and enhancing military facilities where service members train, work, and live.