English Heritage has warned a county council they will strongly object if plans to widen an 18th Century, flood-damaged bridge are pursued.
And their objection could spark a public inquiry which could take up to two years to finalise, said North Yorkshire County Council director of environment services Mike Moore.
The inquiry would follow if, as expected, the Department of Transport does not grant listed consent for the widened bridge
The bridge causing the dilemma is a Grade II-listed building which has been shut for a year after being damaged in last winter's storms. The bridge spans Creet's Beck on the outskirts of Kirkby Malzeard, near Ripon.
Mr Moore says there are sound reasons for widening the bridge because it would allow two vehicles to pass safely without changing road alignment and improving visibility.
When county councillors meet on Thursday, they are recommended to back proposals for rebuilding the bridge.
Mr Moore said: "It is regrettable that the wishes of a substantial majority of residents who attended a public meeting in Kirkby Malzeard cannot be accommodated."
At the meeting, called by Kirkby Malzeard parish council, 42 residents voted to widen the bridge, with 13 against and six abstentions.
Neighbouring Azereley parish council has also backed a widening scheme.
After the old bridge was damaged a temporary structure was built above it, but hiring fees cost the council £50,000. Last week a second temporary bridge was erected by the council which did not attract any hire fees.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article