the "circle around to the underpass looks more like a Turnpike exit or a setting from "The Italian Job" than Appalachian coal fields. I'd think even an exaggerated "Rialto St" would look more at home.
Don't be afraid to really skew RR crossings. A lot more common in the region. Even ones that were made perpendicular, do so by having bends right up to the track edge.
