There are more than 15 federal highways that begin in Michigan and end somewhere else in the country. There are the opposite end points from their Michigan origins.
The 2020s in Michigan may well be remembered at the Detouring '20s with much of the decade under the governorship of Gretchen Whitmer who campaigned famously on the slogan to 'fix the damn roads'.
There's an odd little set of Michigan's state highway system and they are the roads that exist only to connect a state park to Michigan's highway network.