The Central of Georgia Railroad built this depot circa 1898 when they extended their tracks beyond Covington to handle all the business generated by the mills in Porterdale. It’s a bit of an unusual form, and since it’s been restored in recent years, I don’t know if the extension originally featured a loading platform or if it’s part of a newer use for the structure.
Porterdale Historic District, National Register of Historic Places
Vanishing Georgia: Photographs by Brian Brown 
My great-grandfather, granduncle and other relatives in the Covington
area worked for C of G for years.