There’s a town in Ontario where a detour was established to avoid smushing the endangered jeffersonian salamanders when they cross a road:
With a lifespan of only 30 years, the slithery creatures are a precious part of the local ecosystem, but experts say they inhabit one of the only areas in Ontario where they must cross the road to breed. In this case, it’s a portion of King Road that ferries some 1,500 cars on a typical day.
I don’t know if we have jeffersonians around here. I was involved in the search for the small-mouth salamander back in the 1980s. I never did find one.