I am in NH and find no WW's at any intersections.
We have in my county very bad roads. Frost heaves for 3-4 months we stop at the really good/bad ones and no WW's found.
Don't know what a frost heave is , Think of a pothole without a sharp drop 3 feet wide and 1-1/2 deep every 25-30 yards. they appear now from late Feb/early March.
Speeds on our roads is 20-25 MPH no matters the posted speed. Violate the posted you will not get a ticket but you will get a repair bill 10 times higher.
Our town roads that are gravel are better than state paved roads but in 3-4 weeks will be mud season. Drive on a closed Mud season road and be prepared to pay thousands of dollars to repair it.
Many flatlanders from MA learn the hard way every year.
We have never found a WW in any parking lot. Gas prices will kill you, here go to the metal recycle center (no more called junk yard as that is not PC) or find a friendly Plummer.