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Fort Benning is a U.S. Army base located near Columbus, Georgia.As part of the BRAC realignment program,approximately 30,000 new troops from FortKnox were scheduled to relocate to FortBenning’s 182,000-acre base in 2010.To provide facilities for this transition, the U.S.Army Corps of Engineers (USACE) initiated amultibillion-dollar expansion of the base.

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Starting in April 2009, McKenney’sperformed HVAC, sheet metal andpiping installation on multipleenergy-efficient barracks whichincluded a total of 125 dorm-stylerooms with kitchenettes.

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To lower costs and improve energyefficiency, the USACE chose to installunique Load-Match® technology–anadvanced hydronic heating and coolingsystem that operates on a single-pipeprimary, closed loop system.This allows heating and cooling to occur on demand, requiring lesspower and reducing energy consumption.Unlike a typical two-pipe system, theLoadMatch system uses the same pipe forchilled water supply and return.

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Hallway coordination of multiple trades (electrical, plumbing,sprinkler and mechanical) proved challenging, so McKenney’s usedBuilding Information Modeling (BIM) to help layout and organize thework.To streamline installation, the majority of pipe was prefabricated inMcKenney’s shops, minimizing the time and expense of welding inthe field.

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The pipe crew used duct jacks to lift the20-foot prefabricated sections of pipeinto the hangers, then bolted the jointstogether with Victaulic® couplings.Ductwork was also prefabricated, withtaps cut in just prior to shipment.Evidence of the project’s success was acknowledged when thegeneral contractor received an outstanding rating from the USACE.

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Subsequently, the general contractorrecognized McKenney’s exceptionalperformance. McKenney’s was also thesingle largest subcontractor on the barracksproject–representing 11% of the total workcompleted–and this presence allowedMcKenney’s to work closely with the generalcontractor, architects and engineers toincorporate sustainable design elements forthe barracks mechanical systems in supportof the USACE’s goal for LEED® certification.The content of this document is not intended as an endorsement.

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General Contractor: Whiting-Turner Contracting CompanyArchitect/Engineer: Clark-Nexsen Architecture and EngineeringOwner: U.S. Army Corps of EngineersProject TeamThe ChallengePerform HVAC, sheet metal and pipingInstall unique energy-saving hydronics systemThe SolutionPrefabricate pipe to minimize welding time/expenseInstall pipe with duct jacksPrefabricate ductworkHallway coordination of multiple trades using BIMProject completed on time and on budgetRecognized by general contractor for exceptional performanceSupported sustainable design goals for LEED® certificationThe Results

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1056 Moreland Industrial BoulevardAtlanta, Georgia 30316P: 404-622-5000sales@mckenneys.comwww.mckenneys.com3601 Performance RoadCharlotte, North Carolina 28214P: 704-357-1200Atlanta Office:Charlotte Office:

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1056 Moreland Industrial BoulevardAtlanta, Georgia 30316P: 404-622-5000sales@mckenneys.comwww.mckenneys.com3601 Performance RoadCharlotte, North Carolina 28214P: 704-357-1200Atlanta Office:Charlotte Office: