| US Highway 112 | ||||
|---|---|---|---|---|
| Route information | ||||
| Length: | 207 mi[1] (333 km) | |||
| Existed: | 1926[1] – 1962 | |||
| Major junctions | ||||
| West end: | US 12 in New Buffalo | |||
| US 31 in Niles US 131 in White Pigeon US 27 in Coldwater US 127 in Somerset Center US 23 in Ypsilanti I-94 / US 12 in Ypsilanti |
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| East end: | US 12 in Detroit | |||
| Highway system | ||||
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United States Numbered Highways Michigan State Trunkline Highway System
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U.S. Route 112 (US 112) was a largely east–west state trunkline highway across the southern portion of the US state of Michigan between New Buffalo and Detroit. At each end, the route terminated at the original US 12.
As part of the shortest route between Detroit and Chicago, it was considered a likely corridor for an expressway along its route before the Indiana Toll Road and I-94 made such a highway largely unnecessary.[2]
Part of old US 112 was the Old Sauk Trail, an Indian trail.
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All of US 112, except for a bypass of Niles, was an undivided surface road. It passes through terrain full of lakes suitable for recreational use.[3]
US 112 began in New Buffalo. US 112 continued across the southern portion of Berrien County running eastward to Niles. There US 112 met US 31 US 112 ran parallel to the state line intersecting US 131 near White Pigeon and M-66 in Sturgis in St. Joseph County. East of Sturgis, US 112 turned northeasterly to Coldwater and a major intersection with US 27.[3]
East of Coldwater, US 112 ran northeastward to Jonesville northwest of Hillsdale where it met M-99. In Jackson County it passed near the Michigan International Speedway in Brooklyn. It runs along the Lenawee/Washtenaw county line before turning northeast to Ann Arbor and Ypsilanti. Here it formed Michigan Avenue the rest of the way to Detroit, where it ended.[3]
In 1925, US 112 was originally proposed to run from Oshkosh to Fremont, Wisconsin on what later became U.S. Route 110.[4]
In 1926, between Edwardsburg and Adamsville, it made a sharp turn to the southwest along what was first US 112S and later until 2002 M-205 in Michigan, then Indiana's State Road 19 and former State Road 112 to connect to US 20 west of Elkhart, Indiana.
In 1961, Michigan completed I-94 between New Buffalo and Ypsilanti along the corridor of the old, more northerly and urban US 12 to the north and removed signs for US 12 parallel to and along the freeway. Michigan redesignated the intrastate US 112 as US 12, which has been little altered since 1961 except to give access to new freeways.
Michigan designated this highway the Pulaski Memorial Highway in honor of the Polish Count Kazimierz Pułaski, a hero of the American War of Independence.[5]
| County | Location | Mile | Destinations | Notes |
|---|---|---|---|---|
| Berrien |
New Buffalo | US 12 | ||
| Niles | M-60 | |||
| US 31 / US 33 | ||||
| Cass |
M-60 | |||
| Edwardsburg | M-62 | |||
| Adamsville | M-205 | Former US 112S | ||
| Union | M-119 | |||
| St. Joseph |
Mottville | M-103 | ||
| White Pigeon | US 131 | |||
| Sturgis | M-78 | |||
| Branch |
Coldwater | M-86 | ||
| US 27 | ||||
| Hillsdale |
Allen | M-49 | ||
| Jonesville | M-99 | |||
| Lenawee |
Somerset | US 127 | ||
| Cambridge Junction | M-50 | |||
| Springville | M-124 | |||
| Clinton | M-92 | |||
| M-52 | ||||
| Washtenaw |
Ypsilanti | US 23 | ||
| I-94 west / US 12 west | Western end of I-94/US 12 concurrency | |||
| I-94 east / US 12 east | Eastern end of I-94/US 12 concurrency | |||
| Wayne |
Canton Township | M-17 | Eastern terminus of M-17 | |
| Dearborn | US 24 (Telegraph Road) | |||
| Detroit | 207 | I-94 / US 12 | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus • Closed/Former • Incomplete access • Unopened |
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| US Highway 112S | |
|---|---|
| Location: | Union, MI-Rolling Prairie, IN |
| Length: | 30 mi[6] (48 km) |
| Existed: | 1933–1934 |
U.S. Route 112S or US 112S was a spur route of US 112 in the 1930s. Originally, it had been part of US 112 before the latter route was relocated to go through Michigan's southwestern most counties. When US 112 was relocated to New Buffalo, the former US 112 going into Indiana became US 112S. This would continue only a couple of years or so, when the Michigan portion of US 112S would become M-205. In December 2003, the M-205 designation was removed, and today it is a county road.