The town is still cut off entirely from the South with slips on State Highway 8 and Teviot Road.
Police are advising motorists to avoid the area.
The Central Otago District Council has issued a boil water notice for Roxburgh following a water pipe blow-out. They are also asking residents in the area to conserve their water use overnight.
An evacuation point has been set up at Roxburgh Fire Station.
Earlier tonight seven homes on Tweed Street were evacuated as a precaution.
Any residents in the area that have concerns for their safety are being advised to report to the evacuation area at Roxburgh Fire Station or to contact emergency services.