"Fast-rising prices for fuel and asphalt have pushed up construction costs for all kinds of road projects. DOT’s average cost for paving gravel roads has increased from $250,000 per mile in 2007 to $350,000 today."
At todays cost per mile and the road being a tad over 3 miles I don't see them getting the funds $1,000,000+ to pave the road. Grading it regularlly seems to be more than they can handle!