M-66

M-66
Maintained by MDOT
M-66 highlighted in red
Length:	268.95 mi[1] (432.83 km)
Formed:	1920
South end:	SR 9 near Sturgis
Major junctions:	US 12 at Sturgis I-94 / I-194 at Battle Creek I-96 near Ionia US 10 near Sears US 131 / M-72 at Kalkaska M-32 at East Jordan
North end:	US 31 at Charlevoix
Counties:	St. Joseph, Branch, Calhoun, Barry, Ionia, Montcalm, Mecosta, Osceola, Missaukee, Kalkaska, Antrim, Charlevoix
Michigan highways < M-65 M-67 >

M-66 is a north-south state trunkline highway on the Lower Peninsula (LP) of the U.S. state of Michigan. It runs from the Indiana state line in the south to Charlevoix in the north. M-66 is the only state highway to traverse almost the entire north-south distance of the LP. It starts as a continuation of State Road 9 and gives access to the Indiana Toll Road.

Total length is 269 miles (433 km). It includes three miles (5 km) of freeway between Interstate 94 and downtown Battle Creek known designated as Interstate 194.

Route description

This section requires expansion.

History

This section requires expansion.

In the 1930s and 1940's, M-66 was originally designated on what is now M-91 and started at a junction with US 16.

Major intersections

A characteristic view of M-66 in rural Michigan. Taken just south of the M-46 junction

County	Location	Mile	#	Destinations	Notes
St. Joseph	Sturgis Township	0.00		SR 9	Southern terminus at Michigan–Indiana state line
	Sturgis	2.653		US 12 – Niles, Coldwater
	Nottawa Township			M-86 west – Centreville	South end of M-86 concurrency
	Colon Township			M-86 east – Colon	North end of M-86 concurrency
	Leonidas Township			M-60 west – Three Rivers	Western end of M-60 concurrency
Branch	Sherwood Township			M-60 east – Jackson	East end of M-60 concurrency
Calhoun	Battle Creek			I-194	M-66 joins the southern end of I-194 freeway
			1A	I-94 east – Detroit
			1B	I-94 west – Chicago
			2	M-96 (E. Columbia Avenue)
			3	BL I-94 (Dickman Road)	South end of the BL I-94 concurrency
				I-194 / BL I-94 (Hamblin Avenue)	At-grade intersection I-194 freeway ends and highway continues as M-66
	Pennfield Township			M-78 – Bellevue	Western terminus of M-78
Barry	Maple Grove Township			M-79 east – Charlotte	Southern end of M-79 concurrency
	Nashville			M-79 west – Hastings	Northern end of M-79 concurrency
	Woodland Township			M-43 west – Hastings	Western end of M-43 concurrency
				M-43 west / M-50 – Lansing, Lake Odessa	Eastern end of M-43 concurrency on Barry–Eaton county line
Ionia	Berlin Township			I-96 – Grand Rapids, Lansing	Exit 67
	Ionia			M-21 – Grand Rapids, Flint
	Orleans Township			M-44 west – Grand Rapids	Eastern terminus of M-44
Montcalm	Fairplain Township			M-57 – Greenville, Carson City
	Home Township			M-46 east – Saginaw	Eastern end of M-46 concurrency
	Six Lakes			M-46 west – Lakeview	Western end of M-46 concurrency
Mecosta	Remus			M-20 – Big Rapids, Mt. Pleasant
Osceola	Orient Township			US 10 – Reed City, Clare
	Middle Branch Township			M-115 – Cadillac, Clare
				M-61 – Harrison
Missaukee	Lake Township			M-55 west – Cadillac	Southern end of M-55 concurrency
	Lake City			M-55 east , Houghton Lake	Northern end of M-55 concurrency
	Caldwell Township			M-42 west – Manton	Eastern terminus of M-42
Kalkaska	Kalkaska Township			M-72 east – Grayling	Southern end of M-66/M-72 concurrency
	Kalkaska			US 131 south – Cadillac	Southern end of US 131/M-66/M-72 concurrency
				M-72 west – Traverse City	Northern end of US 131/M-66/M-72 concurrency
Antrim	Mancelona			M-88 north / C-38 east – Bellaire, Waters	Southern terminus of M-88 Western terminus of C-38
	Mancelona Township			US 131 north – Petoskey	Northern end of US 131/M-66 concurrency
Charlevoix	East Jordan			M-32 east / C-48 – Gaylord, Boyne Falls, Ellsworth	Western terminus of M-32
	Charlevoix			US 31 – Traverse City, Petoskey	Northern terminus on the shore of Lake Michigan

External links

• M-66 at Michigan Highways
• M-66 Endpoint Photos

References