i do 1 . 2 cars wide ,steep hill ,you have to stay on top of it ,mine is on my discretion .... temps make all the difference in the world. freezing rain .pre salt . sleet salt , snow salt , 1 inch snow plow salt, i charge 100 to plow 100 to salt ,if you don't stay on top of it you will end up in ditch .or not be able to get up hill .i have did it for over 20 years .don't sell yourself short on it , I'm only 2 miles from rd. so very easy for me to no what's going on on that job their are about 25 nice homes on it and they depend on me to do what ever is necessary to keep rd. open . i would think i could charge more . ((((main thing is make sure it is on your discretion )))) or walk away