Remarks: The sunday zinc train heading north out of Hobart occasionally ran on an earlier table to the regular train 36. Seen here crossing the Derwent River lift bridge at Bridgewater Junction 21 km north of the city. Just four of the Z class on the roster and six ZA class. Zs are DOO. Unfortunately today, while the four Zs remain active only two of the ZAs continue to do battle. 25 kph through yard limits and a max of 15 kph on the bridge.