M-31 (Michigan highway)

This article describes a former Michigan state trunkline highway numbered M-31. For the U.S. Highway, see U.S. Route 31 in Michigan

M-31
Route information
Length:	153.42 mi[3] (246.91 km)
Existed:	ca. July 1, 1919[1] – 1926[2]
Major junctions
South end:	M-21 in Port Huron
North end:	M-10 in Saginaw
Location
Counties:	St. Clair, Sanilac, Huron, Tuscola, Bay
Highway system
Michigan State Trunkline Highway System Interstate • US • State ← US 31 M-32 →

M-31 was a state trunkline highway in the Lower Peninsula in the US state of Michigan. It served as a connecting route between Saginaw, The Thumb communities, and Port Huron.

Route description

The route of M-31 can still be driven today. With US 31 being commissioned in 1926, the route was renumbered in several segments. M-31 started at the 1920s version of M-21 and followed modern M-25 northward to Harbor Beach. There M-31 would follow today's M-142 westward through Bad Axe and Pigeon back to the modern M-25. Once back on the modern M-25, M-31 passed through Sebewaing southwesterly to the modern M-24 and south to Unionville. Once M-31 met up with the modern M-138 it turned westerly through Akron and Fairgrove to Bradleyville Road. Bradleyville Road connected through Gilford to the current M-81. M-31 followed M-81 west to Saginaw, and the terminus at what was then M-10.^[2]

History

M-31 was one of the original trunklines shown on the July 1, 1919 map of the Trunkline System.^[1] Originally, M-31 ran from Saginaw to Harbor Beach and was extended southward to Port Huron in 1923. With the coming of the U.S. Highway System in 1926, M-31 was deleted in favor of alternate route numbers, presumably to stem possible confusion with the future US 31 that would run on the western side of the state.^[2]

Major intersections

County	Location	Mile	Destinations	Notes
St. Clair	Port Huron	0.00	M-21
			M-27	Southern terminus of original M-27
Sanilac	Port Sanilac		M-46	Eastern terminus of M-46
Huron	Harbor Beach		M-27 north	Eastern end of M-27 concurrency
			M-27 south	Western end of M-27 concurrency
	Bad Axe		M-19 south	Eastern end of M-19 concurrency
			M-19 north / M-53 south	Western end of M-19 concurrency; northern terminus of M-53
Tuscola	Gilford		M-81 north	Northern end of M-81 concurrency
	Reese		M-81 south	Southern end of M-81 concurrency
Bay	Saginaw	153.42	M-10
1.000 mi = 1.609 km; 1.000 km = 0.621 mi      Concurrency terminus •      Closed/Former •      Incomplete access •      Unopened

References

Michigan Highways portal

1. ^ ^{a b} Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Cartography by MSHD. http://maps.lib.msu.edu/miroadmaps/mirm5.htm. Retrieved March 2, 2008. 
2. ^ ^{a b c} Bessert Christopher J.. "Michigan Highways: Master List 1918-Present". Michigan Highways. http://www.michiganhighways.org/master_list.html#routes30-39. Retrieved August 22, 2006. 
3. ^ "MiGDL - Center for Geographic Information - Geographic Data Library". Michigan Department of Information Technology. May 2007. http://www.mcgi.state.mi.us/mgdl/?rel=thext&action=thmname&cid=14&cat=MI+Geographic+Framework+All+Roads+%28v7b%29. Retrieved March 20, 2008.