VMSHerp has a care sheet here but I can't remember if they're a good source of information...I've been out of the loop for way too long.
I walk with a friend three or four times a week; we walk about half a mile on pavement and the rest on dirt roads. This has been a reptile week! On Monday, we saw a ringneck snake that was dead on road, but then saw a black rat snake. On Wednesday, a ringneck snake and a yellow-bellied water snake. On Friday another ringneck and 3 box turtles (that day we also saw two deer, a groundhog and a couple of muskrats). Then yesterday we saw a dead on road rough green snake and a copperhead. My friend is not a snake person at all and in this area a venomous snake on a road is often a target. I got her to move away and I got a stick and moved him off the road.
I've got to start taking my camera with me on these walks!