Don't laugh. In Maryland this is true although for deer. A major bridge was just built for the 28-198 connector specifically for deer to cross a state road **UNDER** the road rather than by walking across the road. Never mind that deer cross the road in places other than the tunnel all of the time. As people who LOVE to pay MASSIVE tax bills we gladly footed the bill for this EXPENSIVE bridge. Barf...
Stupidity runs amock on MD.