M-147 (Michigan highway)
Former state highway in Blackman Township, Jackson County, Michigan, United States
From Wikipedia, the free encyclopedia
M-147 was a state trunkline highway in the U.S. state of Michigan. The route started at M-106 just north of Jackson and stopped at the entrance of State Prison of Southern Michigan. The route of M-147 was transferred to local control in 1991 after being signed originally in 1936.
Route description
M-147 started at an intersection with M-106 west of the State Prison of Southern Michigan property. From there, the trunkline ran about a half mile (0.8 km) due east to the prison gate and terminated. Just east of the terminus was a branch line of the Grand Trunk Western Railroad.[5] In 1976, a newspaper article said that "it's ... the second shortest highway on Michigan's state highway system, but for those who travel it one way, M-147 is the longest road in the world" in discussing its role as the connection to the state prison,[6] the world's largest walled prison.[7] Another in 1972, called it a "snippet of highway" that "most people hope they never have to travel" in a profile of short highways to "important places".[8]
History
M-147 was designated in 1936 to connect the prison property with the state trunkline system.[2][3] It would remain under state control until January 5, 1991 when it was turned over to Jackson County.[4]
Major intersections
The entire highway was in Blackman Township, Jackson County.
| mi[1] | km | Destinations | Notes |
|---|---|---|---|
| 0.000 | 0.000 |  M-106 | |
| 0.505 | 0.813 | State Prison of Southern Michigan front gate | |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||
