Anyone know how to get road grade from google maps or some other source?

I think Google Earth did a while back. Haven't looked at it in years.

 

Everything on top of that hill probably got there on a truck. If they can do it, you can do it.

 

Pulled up a topographical map and found the high school is at about 150 foot, the junior High is at about 750.

You climbed about 600 feet in a little over a mile (5280 feet) so an average of about 10% grade.

 

There's a couple atlases you can get called mountain directory west and mountain directory east.

 

I asked about this a few years before I went out West. Mountain Passes Steep Grades - RV Must Haves!
IMO, you only need to read the signs. EVERY steep descent has signs posted well before you begin going downhill. Many of them will even post a reasonable speed for trucks, and some of them have different speeds based on your gross weight. I decided not to spend money for another book of maps because you will seldom have enough time to do the calculations to see if the extra time spent avoiding a steep climb/descent can be made up in other ways. Climbs and descents are a part of trucking and you should learn to go up/down hills safely. As a rule, you should not pass any truck your first time on whatever hill you find yourself unless you are empty and the other truck is heavy. I used this rule in bad weather out West, also. "You can go down a hill too slow many times, but only go down it too fast once."

 

Residential delivery? That road looks like fun