A Walsoken resident is unhappy with large lorries venturing down his small cul-de-sac after being confused by sat navs.
Geoffrey Doubleday lives in Broadgate Road West, which shares its postcode with a nearby industrial estate.
However he said lorries relying on sat navs are turning down the narrow cul-de-sac on a weekly basis and finding they have nowhere to go.
“The postbox at the mouth of the cul-de-sac has been bent over three times,” Mr Doubleday claims.
A Norfolk County Council spokesperson said the road sign should indicate that it is a no-through road and there should be a speed limit sign saying it is access only. If these are missing, the council should be notified so they can be replaced.