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List of county-designated highways in Michigan

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County-Designated Highway System
A-2 markerH-58 markerHighway markers for A-2 in Allegan County and H-58 in Alger County
Current highways highlighted in red, former highways in gray, FFH-16 in brown
System information
Maintained by various county road commissions
Length1,241.614 mi (1,998.184 km)
FormedOctober 1970 (1970-10)
Highway names
County-DesignatedA-nn through H-nn
County RoadCounty Road nn (CR nn, Co. Rd. nn)
System links

The county-designated highways in Michigan comprise a 1,241.6-mile-long (1,998.2 km) system of primary county roads across the US state of Michigan. Unlike the State Trunkline Highway System, these highways have alphanumeric designations with letters that correspond to one of eight lettered zones in the state. The County-Designated Highway System (CDH System) was created in 1970 in response to the business concerns of a woman from Saugatuck. Her one-woman crusade in the 1960s started after the highway in front of her motel was turned over to local control as a county road and removed from state highway maps when the nearby freeway opened. After nearly a decade of efforts, the first two test highways were designated, one each in the Lower and Upper peninsulas of the state and included on the 1970 state highway map. The system was created and expanded in scope c. October 5, 1970, after it was approved by the County Road Association of Michigan and the State Highway Commission.

The system uses eight lettered zones which are divided by major state highways. Each county road in the system is designated with the zone letter followed by a number. Six of the zones, A–F, are in the Lower Peninsula while the Upper Peninsula is divided into the remaining two, G and H. There have been a total of 66 different highways designated in seven of the zones; as of 2021 no E highways have been named. Participation by the county road commissions is optional, and not all counties use the system. One additional highway, Forest Highway 16 (marked as "H-16"), has appeared on state maps since the 1980s although it is not a part of the system. Of the highways designated, two were removed from the system and later partially restored.

History

When the Interstate 196 (I-196) freeway was built in the Saugatuck area in the 1960s, US Highway 31 (US 31) was shifted to the new freeway. The former route along Blue Star Highway was returned to county jurisdiction, which removed the various state highway markings from the roadway and displaced Blue Star Highway from the state highway maps of the time. At the time, Mr. and Mrs. Howard "Gene" Temple owned a motel along the roadway in Saugatuck, and they were dismayed over the number of canceled reservations they were receiving because guests could not find their business. Mrs. Temple approached the Village of Saugatuck and the local chamber of commerce to get better highway markings for the area. She even contacted state legislators and members of the State Highway Commission. No changes were made, even though businesses along Blue Star Highway were suffering from a lack of traffic.

Photograph of a curve along
H-58 west of Grand Marais

Mrs. Temple contacted officials at the Allegan County Road Commission and the County Road Association of Michigan in August 1968. State Senator Gary Byker of Hudsonville was also contacted, and he convened meetings with representatives on the state, county and local levels in search of a solution. These meetings resulted in a test program for the 1970 state highway map that marked Blue Star Highway as A-2; the Allegan County Road Commission spent $2,000 (equivalent to $12,100 in 2023) to erect about 50 markers along the road in their county. A second road in the Upper Peninsula was designated B-1 between Engadine and Rudyard in Mackinac and Chippewa counties. Both county roads on the state highway map contained the caption "Experimental Program for Identifying Key County Roads". The markers used were the blue and yellow pentagon shields developed by the National Association of County Engineers. Mrs. Temple earned an honor as the first woman in "Michigan to obtain a highway designation from the State Highway Commission".

Photograph
A-2 in Allegan County south of Holland

The program was implemented by October 5, 1970, and expanded in scope. Instead of using designations beginning with an A for county roads in the Lower Peninsula and with a B for those in the Upper Peninsula, the system was divided into eight zones. The first of these revised assignments were shown on the 1971 state highway map; A-2 retained its number but B-1 was renumbered to H-40 in the Upper Peninsula. Earl Rogers, the engineer-director of the County Road Association of Michigan stated at the time that the county road commissions would gradually phase in signage over the coming years. Participation in the system was made optional, but all counties had agreed to the system. As of 2015, no counties in the E zone have assigned roads to the system, and many counties in the other zones have yet to participate. The system comprises 1,241.614 miles (1,998.184 km) of roadways.

Zone system

Map
Map of the zone system

As implemented in October 1970, the CDH System is divided into eight zones: six in the Lower Peninsula and two in the Upper Peninsula. This contrasts to the state highway system that makes no attempt to group designations by geography in the state. The boundaries for each zone are determined by major state trunkline highways on each peninsula. Each highway is given a designation composed of the zone letter followed by a two-digit number. Within the zone, numbers are assigned on a grid system: north–south highways use odd numbers and east–west highways have even numbers. Lower numbers are used to the south or west sides of the zones.

Photograph
H-13 during winter

The Lower Peninsula is divided into six zones, A-F:

  • The A zone is bordered by I-96 on the north and US 127 on the east. The other two sides are formed by the southern state line with Indiana and Ohio and the western boundary along Lake Michigan.
  • The B zone is bordered by I-96 on the south, Lake Michigan on the west, US 10 on the north and US 127 on the east.
  • The C zone is bordered by US 10 on the south and both I-75 and US 127 on the east. The northwestern boundary is Lake Michigan and the Straits of Mackinac.
  • The D zone is bordered by US 127 on the west, I-96 on the north, the Detroit River and Lake Erie to the east and Ohio to the south.
  • The E zone is bordered by I-96 on the south, US 127 on the west, US 10 and Saginaw Bay on the north and Lake Huron on the east. As of 2015, no highways have been designated in the E zone.
  • The F Zone is bordered by both I-75 and US 127 on the west, Lake Huron on the north and east with US 10 on the south.

The Upper Peninsula is divided into the G and H zones. The dividing line between the two zones is US 41, between Lakes Michigan and Superior with zone G to the west of US 41 and zone H to the east of it.

List

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Counties Formed Removed Notes
A-2 41.609 66.963 M-63 in Lake Michigan Beach BL I-196/US 31 in Holland Berrien, Van Buren, Allegan 01970-01-011970 current Was part of US 31 until 1963
A-37 23.154 37.263 M-222 in Allegan I-196 in Hudsonville Allegan, Ottawa 01977-01-011977 current
A-42 16.441 26.459 M-40 in Heath Township US 131 & M-179 in Hopkins Township Allegan 01982-01-011982 current Eastern half became M-179 in 1998
A-45 41.870 67.383 Bus. US 131 in Kalamazoo M-11 in Grand Rapids Kalamazoo, Allegan, Kent 01972-01-011972 current Was part of US 131 until segments were bypassed between 1957 and 1963
B-15 34.069 54.829 US 31, Bus. US 31 & B-86 in Montague Township Old Bus. US 31 (Monroe Road) in Pentwater Township Muskegon, Oceana 01970-01-011970 current
B-23 10.574 17.017 US 31 in Dalton Township B-86 in Blue Lake Township Muskegon 01971-01-011971 current
B-31 25.178 40.520 I-96 in Nunica M-120 in Brunswick Ottawa, Muskegon, Newaygo 01970-01-011970 current Was M-213 from the mid-1930s until the end of the 1950s
B-35 31.004 49.896 I-96 in Coopersville M-82 in Sheridan Township Ottawa, Muskegon, Newaygo 01970-01-011970 current
B-72 41.283 66.439 US 31 in Muskegon US 131 & M-57 in Algoma Township Muskegon, Ottawa, Kent 01970-01-011970 current
B-86 17.059 27.454 US 31 & Bus. US 31/B-15 in Montague Township M-82 & M-120 at the Holton–Greenwood– Dayton–Sheridan township quadri-point Muskegon, Oceana 01970-01-011970 current
B-88 15.416 24.810 M-37 in White Cloud US 131 in Mecosta Township Newaygo, Mecosta 01984-01-011984 01998-01-011998 Became part of M-20
B-96 16.231 26.121 M-37 in Lilley Township US 131 & Bus. US 131 in Big Rapids Township Newaygo, Mecosta 01984-01-011984 current
C-38 18.738 30.156 US 131 & M-88 in Mancelona Old 27 & F-38 in Otsego Lake Township Antrim, Otsego 01970-01-011970 current
C-42 13.039 20.984 US 131 in Alba M-32 on the Elmira–Hayes township line Antrim, Otsego 01970-01-011970 current
C-48 36.665 59.007 US 31 in Atwood Old 27 in Corwith Township Antrim, Charlevoix, Otsego 01970-01-011970 current
C-56 15.801 25.429 US 31 in Charlevoix Township M-75 in Boyne City Charlevoix 01972-01-011972 current
C-58 21.722 34.958 C-81 in Bear Creek Township I-75 in Wolverine Emmet, Cheboygan 01984-01-011984 current
C-64 16.304 26.239 US 31 in Pellston M-27 in Inverness Township Emmet, Cheboygan 01970-01-011970 current
C-65 18.028 29.013 M-88 in Central Lake Township US 31 in Charlevoix Antrim, Charlevoix 01972-01-011972 current
C-66 28.047 45.137 M-119 & C-77 in Cross Village US 23 & M-27 in Cheboygan Emmet, Cheboygan 01970-01-011970 current
C-71 5.031 8.097 C-56 in Horton Bay US 31 in Bay Shore Charlevoix, Emmet 01972-01-011972 current
C-73 8.118 13.065 M-32 on the Jordan–Warner township line M-75 in Boyne City Emmet, Charlevoix 01972-01-011972 current
C-77 15.970 25.701 M-119 in Harbor Springs M-119 & C-66 in Cross Village Emmet 01970-01-011970 current
C-81 10.028 16.139 US 131 & M-75 in Walloon Lake US 31 in Bay View Charlevoix, Emmet 01982-01-011982 current Southern segment
C-81 32.658 52.558 M-119 in Little Traverse Township Nicolet Avenue in Mackinaw City Emmet 01970-01-011970 current Northern segment
D-19 11.172 17.980 D-32 in Pinckney I-96 in Marion Township Livingston 01970-01-011970 current
D-32 8.371 13.472 M-106 in Gregory D-19 in Pinckney Livingston 01970-01-011970 current Also called the "Highway to Hell"
F-01 9.934 15.987 F-38 on the Charlton–Vienna township line F-44 on the Charlton–Vienna township line Otsego, Montmorency 01970-01-011970 current Follows the Otsego–Montmorency county line
F-05 24.499 39.427 M-68 in Forest Township US 23 on the Cheboygan–Benton Township line Cheboygan 01970-01-011970 current
F-18 28.761 46.286 F-97 in Nester Township F-19 in Prescott Roscommon, Ogemaw, Iosco 01979-01-011979 01984-01-011984
F-18 18.111 29.147 F-97 in Nester Township M-33 on the Horton–Mills township line Roscommon, Ogemaw 02003-01-012003 current
F-19 13.058 21.015 Mason–Richland township line Sage Lake & Laird Lake roads in Hill Township Ogemaw 01977-01-011977 01984-01-011984
F-20 25.120 40.427 Henderson Lake Road on the Mills–Richland township line US 23 on the Tawas City–Alabaster Township line Ogemaw, Iosco 01977-01-011977 01984-01-011984
F-21 27.252 43.858 M-32 near Hillman US 23 in Rogers City Montmorency, Presque Isle 01984-01-011984 current
F-26 20.871 33.589 Siegrist Road on the Hill–Plainfield township line M-55 in Tawas Township Iosco County 01977-01-011977 01984-01-011984
F-28 31.905 51.346 F-97 at St. Helen M-65 in Plainfield Township Roscommon, Ogemaw, Iosco 01977-01-011977 01984-01-011984
F-28 2.010 3.235 F-97 in Richfield Township Richfield–Foster township line Roscommon 02003-01-012003 current
F-30 21.920 35.277 M-65 in Glennie US 23 in Greenbush Alcona 01973-01-011973 current
F-32 55.866 89.908 BL I-75/M-93 in Grayling M-65/M-72 in Curran Crawford, Oscoda, Alcona 01982-01-011982 current
F-38 15.834 25.482 Old 27 & C-38 in Otsego Lake Township F-01 on the Charlton–Vienna township line Otsego 01970-01-011970 current
F-41 31.803 51.182 US 23 in Oscoda US 23 in Caledonia Township Iosco, Alcona 01973-01-011973 current Was M-171 from 1936 until 1960
F-42 7.252 11.671 BL I-75 in Gaylord M-32 Otsego 01970-01-011970 current
F-44 15.649 25.185 M-32 on the Bagley–Livingston township line F-01 on the Charlton–Vienna township line Otsego 01970-01-011970 current
F-97 72.164 116.137 M-18 on the Sage–Sherman township line M-32 in Charlton Township Gladwin, Roscommon, Crawford, Otsego 01971-01-011971 current
G-08 2.335 3.758 CTH-JJ at the Wisconsin state line in Mellen Township US 41 in Wallace Menominee 01970-01-011970 current
G-12 23.547 37.895 CR 352 & Z-1 Road in Lake Township M-35 in Cedar River Menominee 01970-01-011970 current
G-18 11.850 19.071 CTH-Z at the Wisconsin state line in Holmes Township US 41 in Carney Menominee 01972-01-011972 current
G-30 46.470 74.786 M-95 in Randville US 2/US 41 in Bark River Township Dickinson, Menominee Delta 01972-01-011972 01991-01-011991 Became part of M-69
G-38 9.632 15.501 G-67 in Ralph US 2/US 41/M-35 in Escanaba Dickinson, Marquette, Delta 01972-01-011972 02002-01-012002
G-67 9.460 15.224 M-69 in Felch G-38 in Ralph Dickinson 01972-01-011972 02002-01-012002
G-69 16.669 26.826 US 2 in Waucedah M-69 in Foster City Dickinson 01972-01-011972 current
H-01 11.038 17.764 M-67 in Trenary M-94 in Eben Junction Alger 01972-01-011972 current Southern segment
H-01 8.789 14.145 M-94 in Chatham M-28 in Onota Township Alger 01972-01-011972 current Northern segment
H-03 7.702 12.395 M-94 in Forest Lake M-28 in Au Train Alger 01972-01-011972 current
H-05 13.570 21.839 Alger–Delta county line M-94 in Au Train Township Alger 01973-01-011973 current
H-11 3.504 5.639 H-58 in Munising Township Miners Castle in Munising Township Alger 02004-01-012004 current Was part of H-13
H-13 36.192 58.245 US 2 in Nahma Junction H-58 in Munising Township Delta, Alger, Schoolcraft 01972-01-011972 current Runs along Federal Forest Highway 13 (FFH 13)
H-15 4.940 7.950 M-28/M-94 in Shingleton H-58 in Van Meer Alger 01972-01-011972 current
FFH 16 50.504 81.278 CR 436 in Stambaugh Township M-38 in Laird Township Iron, Houghton, Ontonagon — — Mis-marked as "H-16" on state maps in 1983–85 and again since 1992
H-33 18.222 29.325 US 2 in Newton Township M-28 in Lakefield Township Mackinac, Luce 01970-01-011970 current Was M-135 from 1929 until 1960
H-37 22.852 36.777 M-123 in McMillan Township H-58 in Deer Park Luce 01970-01-011970 current
H-40 52.680 84.780 M-117 in Engadine M-48 in Rudyard Mackinac, Chippewa 01970-01-011970 current Was part of M-48 from 1927 until 1960, and then B-1 in the test phase
H-42 10.225 16.456 M-77 in Germfask Township H-33 in Curtis Schoolcraft, Mackinac 01970-01-011970 current
H-44 8.162 13.135 US 41 in Kiva M-67 in Limestone Alger 01972-01-011972 current Western segment
H-44 11.594 18.659 M-77 in Germfask H-33 in Helmer Mackinac, Luce 01970-01-011970 current Eastern segment; was part of M-98 from 1919 until 1960
H-52 12.631 20.328 M-28 in Hiawatha Township H-58 in Melstrand Alger, Schoolcraft 01972-01-011972 02004-01-012004
H-57 7.635 12.287 US 2 in Moran Township M-123 in Brevort Township Mackinac 01970-01-011970 current
H-58 68.985 111.021 M-28 in Munising H-37 in Deer Park Alger, Schoolcraft 01970-01-011970 current Western paved section runs through the Pictured Rocks National Lakeshore
H-63 45.276 72.865 BL I-75 in St. Ignace Township BS I-75 in Sault Ste. Marie Mackinac, Chippewa 01970-01-011970 current Was part of US 2 from 1933 until 1962–63
  •       Former

See also

Notes

  1. ^ Since C-64 and C-66 keep their designations across I-75, M-27 likely forms part of the boundary as well.

References

Footnotes

  1. ^ "County Primary Road Marking System Okayed". The Holland Evening Sentinel. October 5, 1970. p. 6. ISSN 1050-4044. OCLC 13440201. Retrieved May 17, 2017 – via Newspapers.com.
  2. ^ Michigan Department of Transportation (2021). Next Generation PR Finder (Map). Michigan Department of Transportation. Retrieved October 11, 2021.
  3. ^ "Blue Star Highway Gets Additional Road Signs". The Holland Evening Sentinel. May 5, 1970. p. 18. ISSN 1050-4044. OCLC 13440201. Retrieved May 17, 2017 – via Newspapers.com.
  4. Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
  5. MDSH (1970), §§ C9–C11.
  6. ^ MDSH (1971), §§ C9–C11, M7–L8.
  7. MDOT (2015), full map.
  8. MDSH (1970), §§ M7–L8; MDSH (1971), §§ M7–L8.
  9. Mackie, John C. (December 26, 1963). "John Mackie Lists Many Achievements During 1963". The Holland Evening Sentinel. United Press International. p. 22. ISSN 1050-4044. OCLC 13440201. Retrieved May 17, 2017 – via Newspapers.com.
  10. MDSHT (1977), § L8; MDSHT (1978), § L8.
  11. MDOT (1982), §§ L8–L9; MDOT (1983), §§ L8–L9.
  12. ^ Truscott, John (September 24, 1998). "MDOT Accepts Responsibility for 120 Miles of Local Roads" (Press release). Michigan Department of Transportation. Archived from the original on February 18, 2005.
  13. MDSH (1972), §§ L9–M9; MDSH (1973), §§ L9–M9.
  14. MSHD (1957a), § L9; MSHD (1957b), § L9.
  15. MSHD (1963), § M9; MSHD (1964), § M9.
  16. MDSH (1970), §§ J7–K7; MDSH (1971), §§ J7–K7.
  17. MDSH (1971), § K7; MDSH (1972), § K7.
  18. ^ MDSH (1970), §§ J8–K8; MDSH (1971), §§ J8–K8.
  19. MSHD & Rand McNally (1936a), §§ J8–K8.
  20. MSHD (1958), §§ J8–K8; MSHD (1960), §§ J8–K8.
  21. MDSH (1970), §§ K8–K9; MDSH (1971), §§ K8–K9.
  22. MDSH (1970), §§ J7–J8; MDSH (1971), §§ J7–J8.
  23. ^ MDOT (1984), §§ J8–J9; MDOT (1985), §§ J8–J9.
  24. MDOT (1999), §§ J8–J9.
  25. MDSH (1970), §§ G9–G11; MDSH (1971), §§ G9–G11.
  26. MDSH (1970), § G10; MDSH (1971), § G10.
  27. MDSH (1970), §§ F9–F10; MDSH (1971), §§ F9–F10.
  28. MDSH (1972), §§ F9–F10; MDSH (1973), §§ F9–F10.
  29. MDOT (1984), §§ E10–F11; MDOT (1985), §§ E10–F11.
  30. ^ MDSH (1970), §§ E10–E11; MDSH (1971), §§ E10–E11.
  31. MDSH (1972), § F9; MDSH (1973), § F9.
  32. ^ MDSH (1972), § F10; MDSH (1973), § F10.
  33. MDSH (1970), § E10; MDSH (1971), § E10.
  34. MDOT (1982), § F10; MDOT (1983), § F10.
  35. MDSH (1970), §§ E10–F10; MDSH (1971), §§ E10–F10.
  36. MDSH (1970), §§ L12–M12; MDSH (1971), §§ L12–M12.
  37. MDSH (1970), §§ M11–M12; MDSH (1971), §§ M11–M12.
  38. Jennings, Ken (May 26, 2015). "On the Road to Hell (Michigan)". Maphead. Condé Nast Traveler. Archived from the original on January 7, 2016. Retrieved January 19, 2016.
  39. MDSH (1970), §§ F11–G11; MDSH (1971), §§ F11–G11.
  40. MDOT (2015), §§ F11–G11.
  41. MDSH (1970), §§ E11–F11; MDSH (1971), §§ E11–F11.
  42. MDSHT (1979), §§ H11–H12; MDOT (1980), §§ H11–H12.
  43. ^ MDOT (1984), §§ H11–H12; MDOT (1985), §§ H11–H12.
  44. MDOT (2003), § H11; MDOT (2004), § H11.
  45. MDSHT (1977), § H12; MDSHT (1978), § H12.
  46. MDOT (1984), § H12; MDOT (1985), § H12.
  47. MDSHT (1977), §§ H11–H12; MDSHT (1978), §§ H11–H12.
  48. MDOT (1984), §§ E12–F12; MDOT (1985), §§ E12–F12.
  49. MDSHT (1977), §§ H12–H13; MDSHT (1978), §§ H12–H13.
  50. MDOT (1984), §§ H12–H13; MDOT (1985), §§ H12–H13.
  51. MDSHT (1977), §§ H10–H12; MDSHT (1978), §§ H10–H12.
  52. MDOT (1984), §§ H10–H12; MDOT (1985), §§ H10–H12.
  53. MDOT (2003), § H10; MDOT (2004), § H10.
  54. MDSH (1973), §§ H12–H13; MDSHT (1974), §§ H12–H13.
  55. MDOT (1982), §§ G10–G11; MDOT (1983), §§ G10–G11.
  56. MDSH (1970), §§ G10–G11; MDSH (1971), §§ G10–G11.
  57. MDSH (1973), §§ G13–H13; MDSHT (1974), §§ G13–H13.
  58. MSHD & Rand McNally (1936a), §§ G13–H13; MSHD & Rand McNally (1936b), §§ G13–H13.
  59. MSHD (1960), §§ G13–H13; MSHD (1961), §§ G13–H13.
  60. MDSH (1970), § G11; MDSH (1971), § G11.
  61. MDSH (1970), § F11; MDSH (1971), § F11.
  62. MDSH (1971), §§ F11–I11; MDSH (1972), §§ F11–I11.
  63. MDSH (1970), § F5; MDSH (1971), § F5.
  64. MDSH (1970), §§ F4–F6; MDSH (1971), §§ F4–F6.
  65. MDSH (1972), § E5; MDSH (1973), § E5.
  66. MDSH (1972), §§ D4–E6; MDSH (1973), §§ D4–E6.
  67. ^ MDOT (1991), §§ D4–E6; MDOT (1992), §§ D4–E6.
  68. MDSH (1972), §§ D5–E6; MDSH (1973), §§ D5–E6.
  69. MDOT (2002), §§ D5–E6; MDOT (2003), §§ D5–E6.
  70. MDSH (1972), § D5; MDSH (1973), § D5.
  71. MDOT (2002), § D5; MDOT (2003), § D5.
  72. MDSH (1972), §§ D5–E5; MDSH (1973), §§ D5–E5.
  73. MDSH (1972), §§ C6–D6; MDSH (1973), §§ C6–D6.
  74. ^ MDSH (1972), § C6; MDSH (1973), § C6.
  75. ^ MDSH (1972), § C7; MDSH (1973), § C7.
  76. MDSH (1973), §§ C7–D6; MDSHT (1974), §§ C7–D6.
  77. ^ MDOT (2004), § C7; MDOT (2005), § C7.
  78. "Streetview of M-28 and H-13/FFH-13 Junction" (Map). Google Maps. July 2011. Retrieved January 19, 2016.
  79. MDSH (1972), §§ C7–D7; MDSH (1973), §§ C7–D7.
  80. MDOT (1983), §§ B3–D3; MDOT (1985), §§ B3–D3.
  81. MDOT (1992), §§ B3–D3; MDOT (2015), §§ B3–D3.
  82. MDSH (1970), §§ C9–D9; MDSH (1971), §§ C9–D9.
  83. MSHD (1929); MSHD & H.M. Gousha (1930).
  84. MSHD (1960), §§ C8–D8; MSHD (1961), §§ C8–D8.
  85. MDSH (1970), §§ B9–C9; MDSH (1971), §§ B9–C9.
  86. MDSH (1970), §§ D9–C11; MDSH (1971), §§ D9–C11.
  87. MSHD (1927).
  88. MSHD (1960), §§ D9–C11; MSHD (1961), §§ D9–C11.
  89. ^ MDSH (1970), §§ C8–C9; MDSH (1971), §§ C8–C9.
  90. MSHD (1919).
  91. MSHD (1961), §§ C9–C9; MSHD (1961), §§ C8–C9.
  92. MDSH (1972), § D10; MDSH (1973), § D10.
  93. MDSH (1972), §§ C7–B9; MDSH (1973), §§ C7–B9.
  94. MDOT (2015), § C8.
  95. MDSH (1972), §§ C11–D10; MDSH (1973), §§ C11–D10.
  96. MSHD & Rand McNally (1933a), §§ C11–D10; MSHD & Rand McNally (1933b), §§ C11–D10.
  97. MSHD (1962), §§ C11–D10; MSHD (1963), §§ C11–D10; MSHD (1964), §§ C11–D10.

Works cited

External links

KML file (edit • help) Template:Attached KML/List of county-designated highways in MichiganKML is not from Wikidata

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