 This short freeway was opened in late 1960 or early 1961 as the north end of a new US 23 freeway around Bay City. The freeway was extended farther north to the Standish area in 1967; M-13 was extended north to replace the US 23 designation along the latter's former routing through Pinconning. At that time, the freeway stub north of Bay City became Conn. M-13.
