The route travels west and then north before state maintenance ends.
A county official estimated the move saved them $10 million during the first ten years of state maintenance.
The original alignment became Route 170, and lasted until at least 1988, when it was removed from the state maintenance.
Maryland Route 667 begins in Crisfield at its beginning of state maintenance.
In 1987, the portion east of I-35 was removed from state maintenance, forming the current alignment.
This section is still under state maintenance as unmarked MN 952.
MD 451 was removed from state maintenance in 1998.
It was a collection of older highways (mainly business routes) which were still under state maintenance.
It proceeds to a point where state maintenance ends just beyond the northern limit of Larose.
MD 983 curves north and heads past more homes, coming to the end of state maintenance.