Let me know if the update entries aren't specific enough.
I would say for sure that the US-212 & US-310 entries are way too vague. The entries should mention point labels from where to where to at least give the user an idea of where the change happened. US-310 is a little easier to figure out due to it's short length in MT, but US-212 is a way harder due to it being over 300mi in MT. Took me a little bit to figure out where the change was.
Here's how I would have worded the entries for both of those routes:
Rerouted onto a brand new expressway alignment bypassing Silesia to the west between the points of ClaRivRd_W & ClaRivRd_E. Old road became Clark River Road.