C305 is a rural road in Eastern Tasmania. It connects the small town of Tooms Lake to the Midland Highway via the small and historic town of Ross. The Chiswick Road section, and the nearby Bridge Street, Church Street and Ross Bridge are former alignments of the Midland Highway.
C305 utilises the Ross Bridge, which is a major feature in the town of Ross. It was constructed by convict labour and opened in 1836, and is the third oldest bridge still in use in Australia. The bridge crosses the Macquarie River. 1 The bridge was once the demarcation point between free-settling Europeans and those who arrived as convicts.