American Highway Code US Route 27 History
. Originally, the southern terminus of US 27 will be in Cincinnati (Ohio). In 1928, The route was extended south to Chattanooga, Tennessee, and to Tallahassee, Florida in 1934.
. In 1949, this route has been extended to its current terminus in Miami. At its northern end, US 27 have originally terminated at Cheboygan, Michigan.
. The route was extended concurrently with US 23 to Mackinaw City in 1937, where it defunct at the Michigan State Auto Ferry Dock along with US 23 and US 31.
. After the completion of the Mackinac Bridge in 1957, US 27 were extended across the bridge to the current intersection of Interstate 75 and US 2 near St.Ignace.
. In 1961, what became I-75 were completed, it enables the roadway to be designated as I-75. At the same time, US 27 were truncated to an interchange with I-75 six miles (10 km) south of Grayling. In 2002, the northern terminus was moved to its current location.
. From Grayling to Interstate 69 near Lansing, at that moment the road is designated to U.S. Route 127. US 27 signs had been removed from I-69 between Lansing as well as Fort Wayne in 2001.
. Officially, the current northern boundary is at the junction of I-69, US-30, and State Road 3, but heading north on I-69 one will still observe US-27 shields on some of the older overhead signs heading to the I-469 swapping on the northern edge of Fort Wayne.
