Street water runoff safe for veggies?
I would like to place a vegetable garden in my back yard, however last year Duluth had a major flood which revealed that runoff from a nearby avenue flows down the hill, through my neighbor's driveway, and directly into my yard (see the attached picture).
The flood was a "once in 100 years" kind of thing, so I don't expect there to be a river running through my yard ever again, however that part of my yard does stay moist throughout the year and since I now know a contributor of that is runoff from the street and driveway, I am concerned that vegetables growing there could be harmful to consume.
So my questions are: 1. Am I being too paranoid? 2. Will a raised bed prevent runoff from getting to my vegetable root systems?