Summerville Turntable Tennessee Valley Railroad steamer No. 610 on Summerville's turntable at its dedication ceremony in 2003. (Photo by Leamon Scott). No. 610 on the 100-ft turntable in 2004. The turntable operator keeps a close eye on the rails. A grassy hillside provides a fine viewpoint. TVRR excursion cars wait on the tracks next to Summerville's Dowdy Park. The turntable is in the background on the right side of the photo. Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home