In the public forum section of the Wanaka Community Board meeting this week, Mr Wellington said he believed the Public Works Act should be used, if necessary, to ensure public access was guaranteed.
The road runs through Hunter Valley Station, across land it leases from the Crown, to the Department of Conservation's camping area at Kidds.
The road was not gazetted by the Government when it was formed.
Since 2010, station lessees Taff and Penny Cochrane have put a barrier across the road during the lambing season to block public access.
Last month, the Queenstown Lakes District Council discontinued its long-running legal battle to force the lessees to keep the road open at all times.
Mr Wellington noted the road was built with public money and had been maintained by the council for 50 years.
He believed the council's decision to save money by ''walking away'' from legal action set a ''terrible precedent''.
While the lessees had indicated they would only close the road during the lambing season, the council had ''conceded they can close it at any time''.
He believed it was the council's responsibility to ensure public access to local roads and there was a point of principle that needed to be maintained.
Deputy Mayor Lyal Cocks said the issue was a ''very complicated'' one that had cost the council a lot of money ''and we haven't achieved anything''.
He believed it was a ''bizarre'' idea to use the Public Works Act to buy land already owned by the Crown.
A Doc spokeswoman told the Otago Daily Times last month it hoped to continue negotiations with the lessees over access to its Kidds Bush campsite.
