The two community boards from those areas were recently asked to recommend reclassifying several roads, in a move to reduce maintenance and spending.
It is one way the council is reacting to national land transport programme funding cuts.
Now in serious doubt is the sealing of Nuggets Rd from the Willsher Bay domain to the Nugget Point lighthouse, while other work, such as new bridges and footpaths are also under threat.
The board meetings were told the cuts had prompted a review of maintenance levels.
The highest classification of council roads is a district local road, which is graded twice a year, receives total vegetation and noxious plant control, culverts are cleaned and the road metalled every three years.
District access roads are graded only once a year, vegetation and noxious plants are sprayed and culverts cleaned, but they are metalled only every five years.
The lowest classification is a non-maintained road, which receives no attention and noxious plant control is the responsibility of the property owner.
The community boards are being asked to lower the classification of the 17 roads to one of the two lowest maintenance levels.