M-18 (Michigan)

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M-18

M-18 highlighted in red
Route information
Maintained by MDOT
Length77.530 mi[1] (124.772 km)
Existedc. July 1, 1919[2]–present
NHSNone[3]
Major junctions
South end US 10 near North Bradley
Major intersections
North end M-72 / F-97 near Luzerne
Location
CountryUnited States
StateMichigan
CountiesMidland, Gladwin, Clare, Roscommon, Crawford
Highway system
← M-17→ M-19
← M-144M-144→ M-146

M-18 is a north–south state trunkline highway in the Lower Peninsula of the US state of Michigan. It runs for 77.530 miles (124.772 km) through the central region of the state connecting US Highway 10 (US 10) near North Bradley with M-72 in rural Crawford County near the community of Luzerne. In between, the roadway connects several smaller communities while running through woodlands in both state and national forest areas. Two segments of M-18 run along sections of county boundaries, and one part of the highway forms a component of the business loop for the village of Roscommon.

When the highway was first designated in the late 1910s, it extended farther south than it does today and ended well short of its current northern terminus. The southern end was added to another state highway, truncating M-18's length to roughly its current southern terminus in 1926. The northern end was also simultaneously extended for the first time with these revisions to the highway's routing. In the 1940s, the northern extension was reversed and then reinstated. M-18's course was last changed with the opening of three different freeways in the area in the 1960s and 1970s. The last extension in 1973 supplanted the M-144 designation from Roscommon north to Luzerne.

Route description

M-18 begins about 20 miles (32 km) northeast of Mount Pleasant at the North Bradley interchange on US 10 in rural Midland County. The highway runs due north through woodlands that are a part of the Au Sable State Forest and into Gladwin County. The trunkline enters the community of Beaverton and turns northwest to cross the section of the Tobacco River known as Ross Lake. Continuing northwesterly, the road runs along a section of the lake and then turns back due northerly. North of Beaverton, M-18 runs through some farm fields as it approaches the county seat of Gladwin. The highway runs through the southwestern outskirts of town near a golf course as it approaches a junction with M-61. M-18 merges with, and runs concurrently along, M-61 eastward into town on Cedar Avenue. At Silverleaf Street, M-18 turns back north near the airport. M-18 continues northward out of town back into farm country.[4][5]

The highway turns westward along Wirtz Road and past the southern terminus of county road F-97 in the northern part of Gladwin County. Near a crossing with the Cedar River, M-18 turns north along Bard Road and then west again along Renas Road. The highway returns to its northerly course when it turns to run along Clarwin Road, which runs along the Clare–Gladwin county line. The roadway angles to the northwest briefly, cutting across the extreme northeast corner of Clare County as the highway crosses into Roscommon County. Through the southern portion of the county, the road runs through the Roscommon forest management unit of the Au Sable State Forest as it approaches Prudenville. In that community, M-18 turns northeasterly and runs along M-55 along the eastern shore of Houghton Lake. The two highways separate on the eastern edge of town, and M-18 turns northward, intersecting the northern end of M-157. M-18 continues north, parallel to Interstate 75 (I-75) near Higgins Lake; M-18 crosses I-75 at exit 239 south of Roscommon.[4][5] The main entrance to Backus Creek State Game Area is located along this stretch of M-18 just south of I-75.[6]

M-18 looking northbound at the southern terminus of BL I-75 south of Roscommon

North of this freeway interchange, M-18 is also the route of Business Loop I-75 (BL I-75). The combined BL I-75/M-18 runs north near the Roscommon Conservation Airport and turns northeasterly into town. In the middle of Roscommon, BL I-75 turns northwest along Old 76 Road,[5] and M-18 continues northeasterly across a line of the Lake State Railway.[7] The highway continues independently to the northwest over the South Branch of the Au Sable River and out of town. It then turns due east along the Roscommon–Crawford county line. This section of the county line also forms the southern boundary of the Huron National Forest.[8] M-18 curves to the northeast off the county line into the national forest territory where it meets F-97 for a second time. At this junction, F-97 merges with M-18 and the two roads run due north to a junction with M-72 west of Luzerne. At this intersection, F-97 continues north and M-18 terminates in rural Crawford County.[4][5]

M-18 is maintained by the Michigan Department of Transportation (MDOT) like all other state trunkline highways. As a part of these maintenance responsibilities, the department tracks the traffic volumes along the roads under its jurisdiction using a measurement called annual average daily traffic (AADT). This is a metric for the level of traffic along a roadway segment for any average day of the year. In 2009, MDOT calculated that 14,017 vehicles used the section of M-18 along the M-61 concurrency, the highest traffic levels along M-18. The lowest AADT was found along the highway in Crawford County in the 2009 surveys. Commercial traffic varied between the 50 trucks daily in Crawford County and the 214 trucks a day north of Gladwin.[9] No section of M-18 has been listed on the National Highway System,[3] a network of roads important to the country's economy, defense, and mobility.[10]

History

By July 1, 1919, M-18 was first designated on a routing that ran between M-46 west of Merrill through Edenville to M-14 (later US 27) in Prudenville.[2] The highway south of Beaverton was realigned to run due south a new terminus at North Bradley along the new US 10 in late 1926. The former routing between Beaverton and M-30 north of Edenville was redesignated M-80, and the highway from the M-30 junction south to M-46 became an extended M-30. At the same time, the north end was extended along US 27 to end at M-76 in Roscommon.[11] The northern extension was scaled back in 1941 to Prudenville.[12][13]

M-144

LocationRoscommon–Luzerne
Length15.078 mi[1] (24.266 km)
Existed1940[14][15]–1973[16][17]

When the new alignment for US 27 was opened in early 1949, M-18 was re-extended north from Prudenville to Roscommon, where it turned northwesterly with M-76 to end at US 27 south of Grayling.[18][19] The completion of two freeways in the state shifted the termini of M-18 slightly in 1961. The southern terminus was moved north about a mile (1.6 km) to the new US 10 freeway, and the northern terminus was also shifted north about a mile to the new I-75/US 27 freeway.[20][21] The Michigan Department of State Highways completed a freeway segment in 1970 in the Roscommon area for the modern I-75; in a temporary assignment they moved M-18/M-76 onto that freeway.[22][23] When the remainder of the freeway for I-75 was completed between Roscommon and West Branch in 1973, M-18 was rerouted at Roscommon to run northeasterly over the routing of M-144,[16][17] a highway that had existed since 1940.[14][15] Part of the former M-18/M-76 routing on the northwestern side of Roscommon was used for BL I-75.[16][17]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
MidlandWarren Township –
Edenville Township		0.0000.000 US 10 – Clare, MidlandExit 109 on US 10
GladwinGladwin17.88928.790
 M-61 west (Cedar Avenue) – Harrison		Western end of M-61 concurrency
18.82630.298
 M-61 east (Cedar Avenue) – Standish		Eastern end of M-61 concurrency
Sherman Township25.52441.077
 F-97 north (Round Lake Road)		Southern terminus of F-97
ClareNo major intersections
RoscommonDenton Township47.00675.649
 M-55 west (West Houghton Lake Drive) – Houghton Lake		Western end of M-55 concurrency
48.07377.366
 M-55 east (West Branch Road) – West Branch		Eastern end of M-55 concurrency
Backus Township49.90180.308
 M-157 south – West Branch		Northern terminus of M-157
Higgins Township59.426–
59.486		95.637–
95.733		 I-75 – Saginaw, Mackinac Bridge

 BL I-75 north		Southern end of BL I-75 concurrency at exit 239 on I-75
Roscommon62.452100.507
 BL I-75 north (5th Street)		Northern end of BL I-75 concurrency; former M-76
CrawfordSouth Branch Township73.178117.769
 F-97 south – St. Helen		Southern end of F-97 concurrency
77.530124.772 M-72 – Grayling, Harrisville

 F-97 north		Northern terminus; northern end of F-97 concurrency
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ^ a b c Michigan Department of Transportation (2021). Next Generation PR Finder (Map). Michigan Department of Transportation. Retrieved October 11, 2021.
  2. ^ a b Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Lower Peninsula sheet. OCLC 15607244. Retrieved October 17, 2019 – via Michigan History Center.
  3. ^ a b Michigan Department of Transportation (2023). National Functional Classification (Map). Michigan Department of Transportation. Retrieved July 18, 2023.
  4. ^ a b c Michigan Department of Transportation (2010). Uniquely Michigan: Official Department of Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. §§ G11–J11. OCLC 42778335, 639960603.
  5. ^ a b c d Google (March 20, 2011). "Overview Map of M-18" (Map). Google Maps. Google. Retrieved March 20, 2011.
  6. ^ Michigan Department of Natural Resources (April 24, 2017). Backus Creek State Game Area: General Map (PDF) (Map). c. 1:126,720. Lansing: Michigan Department of Natural Resources. Retrieved August 20, 2020.
  7. ^ Michigan Department of Transportation (April 2009). Michigan's Railroad System (PDF) (Map). Scale not given. Lansing: Michigan Department of Transportation. Retrieved September 14, 2010.
  8. ^ Rand McNally (2008). "Michigan" (Map). The Road Atlas. c. 1:1,900,800. Chicago: Rand McNally. pp. 50–1. §§ J9–M9. ISBN 0-528-93981-5.
  9. ^ Bureau of Transportation Planning (2008). "Traffic Monitoring Information System". Michigan Department of Transportation. Retrieved March 20, 2011.
  10. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Retrieved July 1, 2012.
  11. ^ Michigan State Highway Department (December 1, 1927). Official Highway Service Map (Map). [c. 1:810,000]. Lansing: Michigan State Highway Department. OCLC 12701195, 79754957.
  12. ^ Michigan State Highway Department & Rand McNally (March 21, 1941). Official Michigan Highway Map (Map) (Spring ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § H10. OCLC 12701143.
  13. ^ Michigan State Highway Department & Rand McNally (July 1, 1941). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § H10. OCLC 12701143. Archived from the original on April 22, 2017. Retrieved January 2, 2017 – via Archives of Michigan.
  14. ^ a b Michigan State Highway Department & Rand McNally (July 15, 1940). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § G11. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
  15. ^ a b Michigan State Highway Department & Rand McNally (December 1, 1940). Official Michigan Highway Map (Map) (Winter ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § G11. OCLC 12701143.
  16. ^ a b c Michigan Department of State Highways (1973). Michigan, Great Lake State: Official Highway Map (Map). c. 1:918,720. Lansing: Michigan Department of State Highways. § G11. OCLC 12701120, 81679137. Retrieved October 17, 2019 – via Michigan History Center.
  17. ^ a b c Michigan Department of State Highways and Transportation (1974). Michigan, Great Lake State: Official Transportation Map (Map). c. 1:918,720. Lansing: Michigan Department of State Highways and Transportation. § G11. OCLC 12701177, 83138602. Retrieved October 17, 2019 – via Michigan History Center.
  18. ^ Michigan State Highway Department (April 1, 1949). Michigan Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ G10–H10. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  19. ^ Michigan State Highway Department (July 1, 1949). Michigan Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ G10–H10. OCLC 12701120.
  20. ^ Michigan State Highway Department (1961). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ G10–I11. OCLC 12701120, 51857665. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1961)
  21. ^ Michigan State Highway Department (1962). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ G10–I11. OCLC 12701120, 173191490. Retrieved October 17, 2019 – via Michigan History Center.
  22. ^ Michigan Department of State Highways (1970). Michigan, Great Lake State: Official Highway Map (Map). c. 1:918,720. Lansing: Michigan Department of State Highways. § G10. OCLC 12701120.
  23. ^ Michigan Department of State Highways (1971). Michigan, Great Lake State: Official Highway Map (Map). c. 1:918,720. Lansing: Michigan Department of State Highways. § G10. OCLC 12701120, 77960415.

External links

  • M-18 at Michigan Highways
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