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Interestatal comercial 75
Destacadas rutas comerciales de la Interestatal 75
Sistema de carreteras

Ha habido nueve rutas comerciales para la Interestatal 75 en el estado estadounidense de Michigan . Numeradas ya sea Business Loop Interstate 75 ( BL I-75 ) o Business Spur Interstate 75 ( BS I-75 ) dependiendo de si son un circuito comercial completo o un impulso comercial , estas carreteras son rutas anteriores de las carreteras predecesoras de la I-75 en el estado. Fueron designados como I-75 se completó a través de las diversas áreas de Michigan. El circuito comercial de Pontiac atraviesa el centro de esa ciudad a lo largo de una sección de Woodward Avenue y un segmento de la carretera que anteriormente usaba la M-24.. El antiguo circuito empresarial de Saginaw fue una vez parte de la autopista US 23 (US 23), al igual que la mayor parte del circuito empresarial original de Bay City (que se ha convertido en un estímulo comercial). Las carreteras que componen los circuitos comerciales en West Branch y Roscommon formaban parte de la M-76 , la predecesora de la I-75 a través de esa parte del estado. En el norte de Michigan , Grayling y Gaylord BL I-75 eran parte de la US 27 y las dos rutas comerciales en St. Ignace y Sault Ste. Marie en la península superior de Michiganeran parte de US 2 . Se ha propuesto una décima ruta comercial, un circuito a través de Indian River . Cada uno de los circuitos comerciales se conecta a la I-75 en ambos extremos y atraviesa las áreas del centro de sus respectivas ciudades. Las dos vías comerciales solo se conectan a la I-75 en un extremo y llegan al centro de la ciudad correspondiente.

Pontiac [ editar ]

Business Loop Interestatal 75
LocalizaciónPontiac
Largo8,384 mi [1] (13,493 km)
Existió1963 [2] [3] - presente

Business Loop I-75 ( BL I-75 ) es un circuito empresarial que sirve a Pontiac y Auburn Hills . Utiliza partes de la antigua Business M-24 ( Bus. M-24 ) que atraviesa la ciudad. La carretera comienza como una autopista de ocho carriles en un cruce de la I-75 en Bloomfield Township . La autopista continúa pasando un cruce con Opdyke Road para terminar en Square Lake Road, bajando a seis carriles. BL I-75 continúa hacia M-1 en Woodward Avenue. Square Lake Road continúa hacia el oeste como Bus. US 24 , BL I-75 gira hacia el noroeste a lo largo de Woodward Avenue dividida en ocho carriles,funcionando simultáneamente con Bus. US 24 hacia el centro de Pontiac. En el lado sur del centro de la ciudad, Woodward desciende a seis carriles, las dos direcciones de Woodward Avenue se dividen y forman un bucle de cuatro carriles. Woodward Avenue Loop rodea el centro de Pontiac y está cruzado por la dirección este de la M-59.corriendo en Huron Street. Una cuadra al norte, la dirección oeste de la M-59 corre a lo largo de University Drive y gira para seguir BL I-75 / Bus. Estados Unidos 24 (Woodward Avenue Loop). El bucle se cruza con Perry Street otra cuadra más al norte, y BL I-75 gira hacia el noreste en Perry Street de dos vías. BL I-75 pasa a través de áreas residenciales y un área comercial menor a lo largo de Perry Street de cuatro carriles. Fuera del área del centro de la ciudad, Perry Street se ensancha para incluir un carril de giro central. Al norte de Walton Boulevard en Auburn Hills, el nombre de la calle cambia a Lapeer Road. BL I-75 cruza Opdyke Road un par de cientos de pies al oeste de I-75 antes de cruzar la autopista. Lapeer Road continúa como una calzada dividida de seis carriles hasta las rampas de un intercambio de doble trompeta , donde termina la designación BL I-75. Sin embargo, la calzada continúa comoM-24 . [4] [5] En promedio, cada día en 2013, 9,829 vehículos utilizan el circuito comercial entre los dos cruces de la M-59, y 73,795 vehículos lo hacen en el tramo de la autopista al este de Opdyke Road, el tráfico más bajo y más alto. [6]

En 1919, cuando se numeró por primera vez el sistema de carreteras estatales, [7] la carretera principal norte-sur a través de Pontiac se numeró como M-10 , [8] y se renumeró a US 10 siete años después, cuando se creó el Sistema de carreteras numeradas de los Estados Unidos. . [9] Al año siguiente, la M-24 fue designada desde el centro de Pontiac hacia el norte hasta Lapeer . [10] M-24 se trasladó a un desvío oriental de la ciudad en 1936, y la ruta anterior en la ciudad se convirtió en M-24A. [11] [12] Este fue redesignado Bus M-24 en 1940. [13] [14]

Se realizaron varios cambios en la designación de carreteras y en las rutas en el Pontiac cuando la US 10 se trasladó fuera del centro de la ciudad para reemplazar la M-58 a lo largo de Telegraph Road al oeste del centro a mediados de 1961. Antes del cambio, la US 10 seguía a Dixie Highway y Oakland Avenue sudeste en Pontiac a Perry Street y luego Perry a Woodward mientras M-58 se encaminó a lo largo de las carreteras Telegraph y Square Lake. Después del cambio, la US 10 giró hacia el sur desde Dixie Highway hacia Telegraph y luego hacia el este hacia Square Lake para conectarse de nuevo a Woodward. A la antigua ruta por el centro se le asignó el Bus. El apodo de US 10 y M-58 fue dado de baja como una designación de carretera. [15] [16]Dos años más tarde, la I-75 se completó al este de Pontiac, y la circunvalación M-24 de la ciudad se entregó al control local. El antiguo Bus. La M-24 a través del centro de la ciudad fue renumerada BL I-75 junto con una conexión a lo largo de Square Lake Road hacia la autopista. [2] [3] Al año siguiente, las calles del centro de Pontiac se reconfiguraron y se creó un circuito llamado Wide Track Drive para enrutar el tráfico alrededor del centro de la ciudad. La ruta anterior de BL I-75 en Perry Street en el centro de la ciudad fue reemplazada por la ruta de los circuitos comerciales en Wide Track Drive. [3] [17] Luego, en 1966, se construyó un intercambio para reemplazar la intersección en Opdyke Road y Square Lake Road. [18] [19]

En 1985, el Departamento de Transporte de Michigan (MDOT) recibió permiso de la Asociación Estadounidense de Funcionarios de Carreteras y Transporte del Estado para truncar la US 10 a Bay City , [20] y cuando se realizó el cambio al año siguiente, la US 24 reemplazó a la US 10 en Telegraph Road al norte de Square Lake Road y Bus. La US 10 a través del centro fue redesignada como Bus. US 24, incluido el segmento concurrente con BL I-75. [21] [22] Wide Track Drive a través del centro de la ciudad pasó a llamarse Woodward Avenue Loop en 2000. [23] [24]

La sección de BL I-75 que sigue a Woodward Avenue tiene un par de designaciones especiales adjuntas. En 1999, MDOT lo designó como lo que ahora se llama Pure Michigan Byway . [25] Tres años más tarde, fue nombrado un camino apartado escénico nacional por la Administración Federal de Carreteras Programa Nacional de Caminos Panorámicos el 13 de junio de 2002, [26] de la carretera urbana única en el tiempo con esa clasificación. [27] Más tarde se actualizó al estado All-American Road el 16 de octubre de 2009. [28] En 2017, MDOT reconstruyó el término sur, reemplazando las rampas de entrada y salida izquierda por rampas de entrada y salida derecha desde la I-75 en dirección norte .

Intersecciones principales
Toda la carretera se encuentra en el condado de Oakland .

Localizaciónmi [1]kmDestinosNotas
Municipio de Bloomfield0.0000.000 I-75  - Flint , DetroitSalida 75 en I-75
Municipio de Bloomfield - línea de la ciudad de Pontiac1.3042.099Opdyke Road
Square Lake Road este		Intercambio; extremo occidental del trozo de la autopista; Square Lake Road firmada solo hacia el sur
Municipio de Bloomfield2.1423.447
Autobús. US 24 sur
M-1 sur (Woodward Avenue) - Detroit		Extremo sur del autobús. Concurrencia US 24; término norte de la M-1
Pontiac2.4243.901Extremo sur de Woodward Avenue Loop de un solo sentido
3.1034.994 M-59 oeste (Huron Street)Dirección oeste de la M-59
3.1835.123 M-59 este (University Drive)Extremo sur de la concurrencia en dirección este de la M-59 alrededor de Woodward Avenue Loop
3.3745.430
Autobús. US 24 norte / M-59 este (Woodward Avenue Loop) - Clarkston , Howell		Extremo norte del autobús. Concurrencia este de los Estados Unidos 24 / M-59; BL I-75 sale de Woodard Avenue Loop
Auburn Hills7.892–
7.903		12.701–
12.719		 M-24 norte - Lago OrionTérmino sur de la M-24
8.362–
8.384		13.457–
13.493		 I-75  - Flint , DetroitSalida 81 en I-75
1.000 millas = 1,609 km; 1.000 kilómetros = 0.621 millas
  •       Término de concurrencia

Saginaw [ editar ]

Business Loop Interestatal 75
LocalizaciónSaginaw
Length7.338 mi[1] (11.809 km)
Existed1961[31][32]–1971[29][30]

Business Loop I-75 (BL I-75) was a business loop in Saginaw that was previously Business US Highway 23 (Bus. US 23). It started at an interchange between I-75/US 23 and M-46 (Holland Road) in Buena Vista Township. From there, it ran concurrently with M-46 westward into Saginaw. East of 17th Street, the highway split to form a one-way pairing with Remington Street, which carried westbound traffic. About three blocks further west, BL I-75 split from M-46 to follow Genesee Avenue northwesterly into the downtown area. At an intersection between Genesee Avenue, Janes Street and 2nd Avenue, the northbound BL I-75 followed 2nd Avenue while southbound continued on Genesee Avenue. Northbound traffic traveled along 2nd Avenue and Johnson Street to Washington Avenue near the Saginaw River, where the two directions of traffic reunited. Washington Avenue also carried M-13/M-81, and the three designations ran concurrently together northward and parallel to the river. BL I-75/M-13/M-81 curved northeasterly north of downtown, and M-81 left the business loop at an intersection with Veterans Memorial Parkway; BL I-75/M-13 turned north on the parkway and M-81 continued easterly on Washington Avenue. The business loop proceeded northward running parallel to the river and ended at an interchange with I-75/US 23 in Zilwaukee Township; M-13 continued along Bay City Road north of the interchange.[29]

When the state highway system was signposted in 1919,[7] the north–south highway through Saginaw was part of the original M-10.[8] This highway was later redesignated as part of US 23 when the United States Numbered Highway System was created in 1926.[9] US 23 was initially routed on the western side of the Saginaw River through the city, but it was moved in 1929 to run along the eastern side.[33][34] In 1953, the initial eastern bypass of Saginaw was built as a two-lane highway, and the former routing through downtown was redesignated Bus. US 23.[35][36] This bypass was upgraded in 1961 to a full freeway as part of I-75/US 23, and the business loop through downtown was redesignated BL I-75.[31][32] In 1971, I-675 was completed, and BL I-75 was decommissioned through Saginaw. The segments of the business loop that were concurrent with M-13, M-46 or M-81 remained part of those state highways, but the rest of BL I-75 was returned to local control.[29][30]

Major intersections
The entire highway was in Saginaw County.

Locationmi[1]kmDestinationsNotes
Buena Vista Township0.0000.000 I-75 / US 23 – Mackinac Bridge, Flint
M-46 east (East Holland Road) – Richville		Eastern end of M-46 concurrency
Saginaw1.6152.599 M-46 west (Remington Street) – MuskegonWestern end of M-46 concurrency
3.1165.015 M-13 south (Washington Avenue) / M-81 westSouthern end of M-13/M-81 concurrency
5.309–
5.354		8.544–
8.616		 M-81 east (Washington Avenue) – CaroNorthern end of M-81 concurrency
Zilwaukee Township7.356–
7.338		11.838–
11.809		 I-75 / US 23 – Mackinac Bridge, Flint
M-13 north (Bay City Road) – Bay City		Northern end of M-13 concurrency
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

Bay City[edit]

Business Spur Interstate 75
LocationBay City
Length3.047 mi[1] (4.904 km)
Existed1961[37][38]–present

Business Spur Interstate 75 (BS I-75) is a business spur running through Bay City following a section of the current routing of M-25 through town. Formerly a full business loop numbered Business Loop Interstate 75 (BL I-75), it followed what is now M-84 back to end at I-75/US 23 at exit 160 south of downtown. The business route also follows streets that previously were numbered Business US Highway 23 (Bus. US 23). The spur starts at exit 162 on I-75/US 23 at the same interchange where M-25 and US 10 end. BS I-75 runs concurrently along M-25, and for about the first 1+1⁄3 miles (2.1 km), the spur is a four-lane freeway bounded by residential subdivisions on either side. In Bangor Township, the freeway ends and BS I-75/M-25 splits into a one-way pairing of Thomas Street (eastbound) and Jenny Street (westbound). These two three-lane streets continue along a residential area on the west side of Bay City. East of intersections with Henry Street, the opposing sides of traffic merge back together near Veterans Memorial Park to cross the Saginaw River on the four-lane Veterans Memorial Bridge. On the eastern side of the river, BS I-75/M-25 splits again into the one-way pairing of the three-lane McKinley Street (westbound) and 7th Street (eastbound). Just three blocks east of the river, BS I-75 ends at the intersections with M-84 (Washington Avenue) in downtown Bay City.[39][40] On average each day in 2013, 11,678 vehicles use the business loop east of the M-13 junction, and 29,391 vehicles do so west of the M-84 junction, the lowest and highest traffic counts.[6]

When the state highway system was first signposted in 1919,[7] the north–south highway through Bay City was part of the original M-10, and the east–west highway was numbered as part of M-20.[8] When the United States Numbered Highway System was created in 1926, M-10 became part of US 23, although it was routed on the western side of the Saginaw River. The highway was rerouted to the eastern side of the river in 1929.[33][34] By early 1941, US 23 was rerouted to cross the Saginaw River on the southern side of Bay City, and the former routing along Washington Avenue and Midland Street through downtown was renumbered Bus. US 23.[41][42] When the I-75/US 10/US 23 freeway bypass west of Bay City opened in late 1961, the former routing of US 23 was replaced by M-13 and the former Bus. US 23, including connections along the former routing of M-47 southwest and M-20 west of Bay City, were redesignated as BL I-75.[37][38] The BL I-75 designation lasted until 1971 when southern half of BL I-75 was removed, converting the business loop into a business spur; the southern section was renumbered as part of an M-84 extension, and BS I-75 would then run along the section concurrent with M-25 only.[43][44]

Major Intersections
The entire highway is in Bay County.

Locationmi[1]kmDestinationsNotes
Monitor Township0.000–
0.014		0.000–
0.023		 I-75 / US 23 – Mackinac Bridge, Saginaw
US 10 west – Midland
M-25 east – Bay City		Western end of M-25 concurrency; exit 162 on I-75/US 25; eastern terminus of US 10
Bangor Township1.3062.102Eastern end of freeway
Bay City1.6902.720 M-13 / LHCT north (Euclid Avenue) – Standish, SaginawWestern end of LHCT concurrency
2.5894.167John F. Kennedy DriveWestbound exit only
3.0474.904 M-25 east / LHCT east
M-84 south (Washington Avenue) – Saginaw		Eastern end of M-25/LHCT concurrency
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus
  •       Incomplete access

West Branch[edit]

Business Loop Interstate 75
LocationWest Branch
Existed1973[45][46]–present

Business Loop Interstate 75 (BL I-75) is a business loop running through West Branch that was originally numbered Business M-76 (Bus. M-76). It starts at exit 212 south on I-75 south of West Branch. From that interchange, BL I-75 runs northward along Cook Road in Horton and West Branch townships past an outlet mall. North of the mall, the roadway has two lanes, one in each direction plus an intermittent center turn lane, and it curves first to the northeast through a rural section of the townships, and then after intersecting Old 76 Road, it turns northwesterly through a commercial area. On the eastern city limits, BL I-75 turns due west and runs concurrently with M-55 on the four-lane Houghton Avenue through downtown West Branch. On the western side of downtown, the business loop intersects the northern end of M-30 and narrows to two lanes. BL I-75/M-55 continues out of town, running past more businesses before meeting I-75 at exit  215. At that interchange, BL I-75 ends, and M-55 merges onto the freeway.[47][48] On average each day in 2013, 10,682 vehicles use the business loop near the southern I-75 interchange, and 15,399 vehicles do so between the M-55 junction and 5th Street in downtown West Branch, the lowest and highest traffic counts.[6]

When the state highway system was signposted in 1919,[7] the highway running northwest–southeast through West Branch was numbered M-76 and the east–west highway was M-55.[8] In the early 1970s, M-76 was being converted into a freeway between Standish and the Grayling area. In 1970, the freeway was built as far as the present-day exit 212, and the connection along Cook Road was built to allow M-76 to connect between the new freeway and its former routing.[49][50] The next year, this freeway was completed to bypass West Branch to the south and west. The former route of M-76 through town with the connection along Cook Road was renumbered Bus. M-76.[50][51] Two years later, I-75 was finished in the state,[52] and the M-76 designation was decommissioned. The former Bus. M-76 was redesignated as BL I-75 at the same time.[45][46]

Major intersections
The entire highway is in Ogemaw County.

Locationmi[1]kmDestinationsNotes
Horton Township0.0000.000 I-75 – Mackinac Bridge
Cook Road		Roadway continues southward as Cook Road
West Branch Township1.5522.498Old 76Formerly M-76
2.4954.015 M-55 east – Tawas CityEastern end of M-55 concurrency
West Branch3.5935.782 M-30 south – BeavertonNorthern terminus of M-30
Ogemaw Township5.5258.892 I-75 / M-55 west – Mackinac Bridge, Saginaw, Houghton LakeWestern end of M-55 concurrency
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

Roscommon[edit]

Business Loop Interstate 75
LocationRoscommon
Length6.935 mi[1] (11.161 km)
Existed1973[45][46]–present

Business Loop Interstate 75 (BL I-75) is a business loop running through Roscommon. Starting at exit 239 along I-75, the business loop runs concurrently with M-18 northward along the two-lane Roscommon Road through rural Northern Michigan woodlands. When BL I-75/M-18 enters the village of Roscommon, it follows Lake Street northeasterly into downtown. At the intersection with 5th Street, BL I-75 turns northwesterly and separates from M-18. In the village, the business loop has three lanes, one in each direction with a center turn lane. The business loop continues past several businesses and exits the village as a two-lane road. BL I-75 curves to run due west along the Roscommon–Crawford county line on Federal Highway. At exit 244 on I-75, the business loop terminates while following the county line.[53][54] On average each day in 2013, 1,531 vehicles use the business loop near the northern I-75 interchange, and 5,987 vehicles do so in downtown Roscommon south of the M-18 junction, the lowest and highest traffic counts.[6]

When the state highway system was originally signposted in 1919,[7] the highway running northwest–southeast through Roscommon was numbered M-76.[8] In 1949, M-18 was extended north into Roscommon and then west along M-76.[55][56] During the early 1970s, M-76 was being converted into a freeway to be used as part of I-75. In 1971, I-75 was completed southward from the Grayling area to what is now exit 239. Two years later, I-75 was completed between Roscommon and West Branch,[52] and M-76 between the two communities was decommissioned. At the same time, M-18 was realigned to northeasterly out of Roscommon instead of following M-76 toward Grayling. BL I-75 was commissioned at this time to overlap M-18 from the freeway north into Roscommon and to replace the former M-18/M-76 west of the village to the new freeway.[45][46]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
RoscommonHiggins Township0.0000.000 I-75 – Mackinac Bridge, Saginaw
M-18 south – Houghton Lake		Southern end of M-18 concurrency; exit 239 on I-75
Roscommon3.0264.870 M-18 northNorthern end of M-18 concurrency
Roscommon–Crawford county lineGerrish–Beaver Creek township line6.93511.161 I-75 – Mackinac Bridge, SaginawExit 244 on I-75
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

Grayling[edit]

Business Loop Interstate 75
LocationGrayling
Length5.823 mi[1] (9.371 km)
Existed1961[31][32]–present

Business Loop Interstate 75 (BL I-75) is a business loop running through Grayling. The southern end is at a partial interchange at exit 254 on I-75; only northbound I-75 traffic can access northbound BL I-75, and southbound BL I-75 traffic can only access southbound I-75. From this interchange, the business loop runs northward as a five-lane divided roadway through a commercial area and past the Grayling Golf Club. At the intersection with Huron Street (South Down River Road), BL I-75 merges with M-72. The two highways run concurrently and turn northwesterly along the five-lane undivided James Street. BL I-75/M-72 narrows to three lanes and crosses the Au Sable River and runs for about 3⁄4 mile (1.2 km) before intersecting Lake Street in downtown Grayling. There, M-72 turns southwesterly onto Lake Street, separating from the business loop. At the same intersection, M-93 turns north and merges with BL I-75 as the two run concurrently on the three-lane McClellan Street. BL I-75/M-93 intersects F-32 (North Down River Road) and then passes the Camp Grayling Airfield. North of the airfield, the highway narrows to two lanes and curves to the northwest, exiting the city. At the intersection with Old 27 and Hartwick Pines Road, BL I-75/M-93 turns northeasterly onto the latter. They continue running concurrently to exit 259 on I-75 where the BL I-75 designation terminates. M-93 continues along Hartwick Pines Road north of the interchange.[57][58] All of BL I-75 through Grayling is a part of the Strategic Highway Network, a component of the National Highway System,[59] a network of roads important to the country's economy, defense, and mobility.[60] On average each day in 2013, 1,407 vehicles use the business loop between Old 27 and I-75, and 18,467 vehicles do so in downtown Grayling south of the M-72 junction, the lowest and highest traffic counts.[6]

When the state highway system was originally signposted in 1919,[7] the north–south highway through Grayling was part of the original M-14. At that time, M-93 was only a spur from downtown Grayling to the future Camp Grayling.[8] It was later redesignated as part of US Highway 27 (US 27) in 1926.[9] By 1932, M-93 was extended northward through Grayling to the state park.[61] In 1940, M-72 was extended through the Grayling area.[13][41] I-75 in the Grayling area opened in 1961 and, the former routing of US 27 through Grayling northward to Hartwick Pines Road back to I-75 was redesignated BL I-75.[31][32]

Major intersections
The entire highway is in Crawford County.

Locationmi[1]kmDestinationsNotes
Grayling Township0.0000.000 I-75 south – SaginawSouthbound exit and northbound entrance only; exit 254 on I-75
Grayling0.6771.090 M-72 east (Huron Street) – MioSouthern end of M-72 concurrency
1.3872.232 M-72 west / M-93 south (Lake Street) – Traverse CityNorthern end of M-72 concurrency; southern end of M-93 concurrency
1.8422.964 F-32 east (North Down River Road)Western terminus of F-32
Grayling Township5.8239.371 I-75
M-93 north – Hartwick Pines State Park		Northern end of M-93 concurrency; exit 259 on I-75; roadway continues as M-93
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus
  •       Incomplete access


Gaylord[edit]

Business Loop Interstate 75
LocationGaylord
Length3.391 mi[1] (5.457 km)
Existed1986[62][63]–present

Business Loop Interstate 75, or BL I-75 is a business loop running through Gaylord. The loop starts at exit 279 on I-75 in Bagley Township south of Gaylord. The highway follows the five-lane Otsego Avenue northward from the freeway into the city and though a commercial area. Otsego Avenue jogs eastward slightly south of 2nd Street, and then intersects M-32 (Main Street) in downtown Gaylord. BL I-75 turns west onto the five-lane Main Street and runs concurrently with M-32 through downtown. About five blocks each of that turn, BL I-75/M-32 meets I-75 at exit 282; BL I-75 ends while M-32 continues westward.[64][65] On average each day in 2013, 8,289 vehicles use the business loop south of the M-32 junction, and 23,436 vehicles do so in downtown Gaylord along the M-32 concurrency, the lowest and highest traffic counts.[6]

When the state highway system was first signposted in 1919,[7] the main highway running north–south through Gaylord was part of the original M-14.[8] This was renumbered as part of US Highway 27 (US 27) in 1926 after the United States Numbered Highway System was formed.[9] I-75 was completed and US 27 was removed through the Gaylord area in 1962.[66] The business loop was not created at that time, however.[31][32] Instead, it was created in 1986.[62][63]

Major intersections
The entire highway is in Otsego County.

Locationmi[1]kmDestinationsNotes
Bagley Township0.0000.000 I-75 – Mackinac Bridge, Saginaw
Old 27 south		Exit 279 on I-75; roadway continues south as Old 27
Gaylord2.8684.616 M-32 east – AlpenaEastern end of M-32 concurrency
3.3915.457 I-75 – Mackinac Bridge, Saginaw
M-32 west – East Jordan		Western end of M-32 concurrency; exit 282 on I-75
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

Indian River[edit]

Business Loop Interstate 75
LocationIndian River
Length3.975 mi[1] (6.397 km)
HistoryProposed in 2015–17 to CCRC and MDOT

Business Loop Interstate 75 (BL I-75) is a proposed business loop that would run through Indian River.[67] It would start at exit 310 on I-75 in Tuscarora Township and follow M-68 across the North Central State Trail near the Sturgeon River. In the community of Indian River, M-68 turns southwesterly on South Straits Highway, and BL I-75 would turn northward into downtown. The business loop would run through downtown, passing several businesses, and cross the Indian River on the north side of the business district. North of the river, South Straits Highway continues to parallel the North Central State Trail and passes the Indian River Golf Club. North of the club, the roadway runs through forest land and past the occasional business before meeting I-75 at exit 310. This interchange is the southern terminus of M-27, and it would serve as the future northern terminus of BL I-75.[68]

Prior to the construction of the I-75 freeway, South Straits Highway was the route of US Highway 27 (US 27) through the Indian River area. In November 1960, sections of I-75 freeway opened from Indian River north to the southern Mackinac Bridge approaches in Mackinaw City,[69] By the end of the following year, I-75 was completed between Gaylord and Grayling. US 27 was truncated to terminate south of Grayling, and the former route through Indian River and Gaylord was redesignated "To I-75" on maps.[70][71] In 1962, the remaining freeway bypass of Indian River was completed.[72] At that time, South Straits Highway through Indian River between M-68 and M-27 was turned over to local control as a county road.[71][73] M-68 was first designated between Indian River and Alanson by 1936,[74] and eastward by 1946 toward Afton.[75]

A business loop for Indian River was first proposed to the Cheboygan County Road Commission (CCRC) in June 2015. At the time, the road commission had recently placed the bridge on South Straits Highway over the Indian River with a new structure up to Michigan Department of Transportation (MDOT) standards and was repaving the roadway north of the river to the I-75 interchange.[76] The CCRC held a community forum in June 2016, and many local residents and businesses supported the designation at the time.[77] The Tuscarora Township Board and Downtown Development Authority have expressed interesting in paying for the necessary signage should MDOT and the CCRC move forward to apply for the designation from the American Association of State Highway and Transportation Officials. The township board has passed a resolution in support of the BL I-75 designation.[67]

Major intersections
The entire highway is in Cheboygan County.

Locationmi[1]kmDestinationsNotes
Tuscarora Township0.000–
0.287		0.000–
0.462		 I-75 – Mackinac Bridge, Saginaw
M-68 east – Rogers City		Eastern end of M-68 concurrency; exit 310 on I-75; roadway continues eastward as M-68
Indian River0.5930.954 M-68 west – AlansonWestern end of M-32 concurrency
Tuscarora Township3.413–
3.975		5.493–
6.397		 I-75 – Mackinac Bridge, Saginaw
M-27 north – Topinabee, Cheboygan		Exit 313 on I-75; southern terminus of M-27; roadway continues northward as M-27
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

St. Ignace[edit]

Business Loop Interstate 75
LocationSt. Ignace
Length4.719 mi[1] (7.594 km)
Existed1960[31][78]–present
Touristroutes Lake Huron Circle Tour

Business Loop Interstate 75 (BL I-75) is a business loop running through St. Ignace. The loop starts at exit 344 on I-75 as the continuation of US Highway 2 (US 2) into downtown. The highway carries the Lake Huron Circle Tour (LHCT). It runs along a four-lane roadway on the north side of Straits State Park and curves northward into downtown St. Ignace along State Street. BL I-75 and three lanes and runs along the lakefront past the marina and docks for Mackinac Island ferry services. It widens back to four lanes to follow the curve of East Moran Bay and then turns inland past several hotels situated on a point jutting into the bay. North of the point, BL I-75 follows the Lake Huron shoreline past the Mackinac County Airport. North of the airport, the adjacent properties are primarily residential with a few tourist-oriented businesses. The business loop intersects County Road H-63 (Mackinac Trail) and comes to an end near Castle Rock at exit 348 on I-75 in St. Ignace Township.[79][80] On average each day in 2013, 4,327 vehicles use the business loop near the northern I-75 interchange, and 8,819 vehicles do so near the southern I-75 interchange, the lowest and highest traffic counts.[6]

The first state highway through St. Ignace was an extension of US 31 that was added by the end of 1927.[10] In 1936, US 2 was realigned to run into downtown St. Ignace from the west and replaced US 31 through town.[11][12] The business loop was commissioned in 1960 when the I-75/US 2 freeway opened, and the former route of US 2 through downtown was renumbered BL I-75.[31][78]

Major intersections
The entire highway is in Mackinac County.

Locationmi[1]kmDestinationsNotes
St. Ignace0.0000.000 I-75 / GLCT – Sault Ste. Marie
US 2 west / LMCT west – Escanaba, Manistique		Southern end of LHCT concurrency; eastern terminus of US 2; exit 344 on I-75
0.4600.740Ferry LaneFormer M-122
St. Ignace Township4.3967.075 H-63 north (Mackinac Trail) – Sault Ste. MarieSouthern terminus of H-63
4.7197.594 I-75 / LHCT north – Sault Ste. Marie, Mackinac BridgeNorthern end of LHCT concurrency; exit 348 on I-75
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

Sault Ste. Marie[edit]

Business Spur Interstate 75
LocationSault Ste. Marie
Length5.867 mi[1] (9.442 km)
Existed1962[2][32]–present

Business Spur Interstate 75 (BS I-75) is a business spur running through Sault Ste. Marie. It starts at exit 392 on I-75 on the south side of the city. From that interchange, it runs eastward along the five-lane-wide 3 Mile Road and intersects the northern end of County Road H-63 (Mackinac Trail) before curving northeasterly. The spur runs through commercial areas and intersects the northern end of M-129 (Dixie Highway) before turning due north along Ashmun Street near the Sault Ste. Marie Municipal Airport. Ashmun Street narrows to four lanes north of 10th Avenue and regains a center turn lane at Adams Avenue. BS I-75 turns northeasterly past Easterday Avenue and runs to the east of the campus of Lake Superior State University, crossing the Edison Sault Power Canal. At Portage Avenue south of the Soo Locks., BS I-75 turns southeasterly to follow Portage Avenue along the St. Marys River. The business spur crosses the canal again just upstream from its mouth. Portage Avenue continues through residential neighborhoods on the east side of Sault Ste. Marie, following the river. BS I-75 ends at the entrance to the Sugar Island Ferry Dock across from the Sault Ste. Marie Country Club.[81][82] On average each day in 2013, 1,433 vehicles used the business spur near the I-75 interchange, and 19,962 vehicles do so north of the M-129 junction, the lowest and highest traffic counts.[6]

When the state highway system was first signposted in 1919,[7] the north–south state highway in Sault Ste. Marie was numbered M-12 in 1919.[83] It was renumbered as part of US Highway 2 in 1926.[9] In 1962, the I-75/US 2 freeway was completed, and the former route of US 2 through downtown along with a connection between I-75/US 2 and the International Bridge was redesignated BS I-75.[2][32] In 1989, the designation was extended along Portage Avenue to the Sugar Island Ferry Dock.[84][85]

Major intersections
The entire highway is in Sault Ste. Marie, Chippewa County.

mi[1]kmDestinationsNotes
0.0000.000 I-75 north / GLCT – Bridge to Canada, St. IgnaceWestern end of LHCT concurrency; exit 392 on I-75
0.6200.998 H-63 south (Mackinac Trail)Northern terminus of H-63
1.8853.034 M-129 south / LHCT southEastern end of LHCT concurrency; northern terminus of M-129
5.8679.442 Sugar Island Ferry Dock
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Concurrency terminus

See also[edit]

  •  Michigan Highways portal

References[edit]

  1. ^ a b c d e f g h i j k l m n o p q r s Michigan Department of Transportation & Michigan Center for Shared Solutions and Technology Partnerships (2009). MDOT Physical Reference Finder Application (Map). Michigan Department of Transportation. Retrieved May 10, 2015.
  2. ^ a b c d Michigan State Highway Department (1963). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ C10, L13. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  3. ^ a b c Michigan State Highway Department (1964). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § L13. OCLC 12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
  4. ^ Michigan Department of Transportation (2014). Pure Michigan: State Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit Area inset. §§ A8–B9. OCLC 42778335, 900162490.
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  6. ^ a b c d e f g h Bureau of Transportation Planning (2008). "Traffic Monitoring Information System". Michigan Department of Transportation. Retrieved May 12, 2015.
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  80. ^ Google (May 10, 2015). "Overview Map of BL I-75 in St. Ignace" (Map). Google Maps. Google. Retrieved May 10, 2015.
  81. ^ Michigan Department of Transportation (2014). Pure Michigan: State Transportation Map (Map). c. 1:221,760. Lansing: Michigan Department of Transportation. Sault Ste. Marie inset. OCLC 42778335, 900162490.
  82. ^ Google (May 10, 2015). "Overview Map of BS I-75 in Sault Ste. Marie" (Map). Google Maps. Google. Retrieved May 10, 2015.
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External links[edit]

Route map:

KML file (edit • help)
KML is from Wikidata
  • Geographic data related to BL I-75 in Pontiac at OpenStreetMap
  • BL I-75 in Pontiac at Michigan Highways
  • Geographic data related to BL I-75 in Bay City at OpenStreetMap
  • BL I-75 in Bay City at Michigan Highways
  • Geographic data related to BL I-75 in West Branch at OpenStreetMap
  • BL I-75 in West Branch at Michigan Highways
  • Geographic data related to BL I-75 in Roscommon at OpenStreetMap
  • BL I-75 in Roscommon at Michigan Highways
  • Geographic data related to BL I-75 in Grayling at OpenStreetMap
  • BL I-75 in Grayling at Michigan Highways
  • BL I-75/M-72 Au Sable River Bridge at Michigan's Historic Bridges (MDOT)
  • Geographic data related to BL I-75 in Gaylord at OpenStreetMap
  • BL I-75 in Gaylord at Michigan Highways
  • Geographic data related to BL I-75 in St. Ignace at OpenStreetMap
  • BL I-75 in St. Ignace at Michigan Highways
  • Geographic data related to BS I-75 in Sault Ste. Marie at OpenStreetMap
  • BS I-75 in Sault Ste. Marie at Michigan Highways
  • Ashmun St. Power Canal Bridge at Michigan's Historic Bridges (MDOT)