M-29 (Michigan highway)
M-29 highlighted in red | ||||
| Route information | ||||
| Maintained by MDOT | ||||
| Length | 41.634 mi (67.003 km) | |||
| Existed | 1926–present | |||
| Major junctions | ||||
| South end | M-3 / I-94 in Chesterfield Township | |||
| North end | BL I-94 in Marysville | |||
| Location | ||||
| Country | United States | |||
| State | Michigan | |||
| Counties | Macomb, St. Clair | |||
| Highway system | ||||
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M-29 is a state trunkline highway in the US state of Michigan that runs in a south–north direction from Chesterfield Township to Marysville. It generally runs along the shore of Lake St. Clair and the St. Clair River.
The M-29 designation has been used twice in Michigan starting in 1919. The first designation near Lansing was replaced by U.S. Route 27 (US 27) in 1926. At that time, the M-29 designation was moved to the east side of the state along the current routing and farther north along part of what became US 25 and M-25. The 1933 extension of US 25 replaced the northern section of M-29 leading to the current location of M-29.