Arlington Built in 1898, Arlington's union depot served the Central of Georgia and the Georgia, Florida, and Alabama Railway (later Seaboard Air Line Railway). Transportation Enhancement funds for the depot's rehabilitation were approved in 2001. Arlington is a town of 1600 in Calhoun County in southwest Georgia. Above, the depot before rehab work was begun.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home