BNA Geothermal Cooling System

Nashville, Tennessee


Innovative Solution

Garver and the Nashville International Airport teamed up to turn an abandoned rock quarry into an asset that helps lower energy costs by more than $400,000 per year. Garver designed a pipeline corridor that sends water in a closed loop from the quarry reservoir to a cooling plant at the airport’s terminal. The largest geothermal cooling system of its kind in North America turns 79-degree water into 63-degree water as it travels the two-mile high-density polyethylene pipe, which crosses a runway and taxiway en route to the reservoir.

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Harnessing the cooling effect of the quarry water created a renewable, sustainable energy source. A project like this encourages innovation in the way we create solutions.
Ryan Sisemore Garver Aviation East Region Director

IQ Magazine

IQ Volume 10, Issue 3

In this issue: An extensive master plan and modeling project at the largest tertiary water resource recovery facility in Texas, an improved intrusion detection system at a Tennessee airport, a long-desired east/west oriented freeway in northwest Arkansas, and Garver’s method for assessing storm-related damages.

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