b'Runway Replacement at Nashville Intl44 BNA RUNWAYSPresents Sustainability OpportunityThat Saved About $6.4 million BY RONNIE WENDTSome say it isnt easy being green, but Nashvillethe honor for its efforts to promote water conservation, energy International Airport (BNA) certainly makes it look effortless.efficiency, social well-being and community involvement.When the Music City airport opened Concourse D Most recently, BNA received an Honor Award in the ACEC in 2020, the project achieved LEED Silver certification for aEngineering Excellence Award competition for the sustainability and sustainable, wellness-oriented design and construction process. Itunique engineering of its Runway 2R-20L reconstruction project. is one of just nine airport facilities in the world to earn LEED SilverHere, the airport shaved an estimated $6.4 million off construction under the U.S. Green Building Councils v4 standards.costs by using recycled concrete aggregate for the base of its In 2017, the Water Source Geothermal project at BNA netted8,000-foot main runway. an Envision Silver award from the Institute for SustainableSustainability is a key initiative for the airport. We try to be as Infrastructure. Metropolitan Nashville Airport Authority receivedsustainable as we can on every project, says Traci Holton, BNA May | June 2022AirportImprovement.com'