Interstate 94 in Michigan

This article is about the section of Interstate 94 in Michigan. For the entire route, see Interstate 94.

Interstate 94 marker
Interstate 94
Map
I-94 highlighted in red
Route information
Maintained by MDOT
Length275.398 mi[1] (443.210 km)
Existed1959[2]–present
Tourist
routes
NHSEntire route
Major junctions
West end I-94 near New Buffalo
Major intersections
East end Highway 402 at Port Huron
Location
CountryUnited States
StateMichigan
CountiesBerrien, Van Buren, Kalamazoo, Calhoun, Jackson, Washtenaw, Wayne, Macomb, St. Clair
Highway system
← M-93→ BL I-94
← US 112M-112→ M-113

Interstate 94 (I-94) is a part of the Interstate Highway System that runs from Billings, Montana, to the Lower Peninsula of the US state of Michigan. In Michigan, it is a state trunkline highway that enters the state south of New Buffalo and runs eastward through several metropolitan areas in the southern section of the state. The highway serves Benton Harbor–St. Joseph near Lake Michigan before turning inland toward Kalamazoo and Battle Creek on the west side of the peninsula. Heading farther east, I-94 passes through rural areas in the middle of the southern Lower Peninsula, crossing I-69 in the process. I-94 then runs through Jackson, Ann Arbor, and portions of Metro Detroit, connecting Michigan's largest city to its main airport. Past the east side of Detroit, the Interstate angles northeasterly through farmlands in The Thumb to Port Huron, where the designation terminates on the Blue Water Bridge at the Canada–United States border.

The first segment of what later became I-94 within the state, the Willow Run Expressway, was built near Ypsilanti and Belleville in 1941, with an easterly extension to Detroit in 1945. This expressway was initially numbered M-112. In the mid-1950s, state and federal officials planned an Interstate to replace the original route of US Highway 12 (US 12). By 1960, the length of I-94 was completed from Detroit to New Buffalo. Two years later, the US 12 designation was dropped from the freeway. Subsequent extensions in the 1960s completed most of the rest of the route, including the remaining sections between Detroit and Port Huron which superseded the routing of US 25. The last segment opened to the public in 1972 when Indiana completed its connection across the state line. Since completion, I-94 has remained relatively unchanged; a few interchanges have been rebuilt, a second span was constructed for the Blue Water Bridge, and, in 1987, a plane crashed on the freeway during takeoff from the airport in Detroit. The routing of I-94 is notable for containing the first full freeway-to-freeway interchange in the United States, connecting to the Lodge Freeway (M-10), and for comprising the first complete border-to-border toll-free freeway in a state in the United States. The highway has one auxiliary route, I-194, which serves downtown Battle Creek, and eight business routes. Various segments have been dedicated to multiple people and places.

Route description

The entire length of I-94 is listed on the National Highway System,[3] a network of roadways important to the country's economy, defense, and mobility.[4] The freeway carried 168,200 vehicles on average between I-75 and Chene Street in Detroit, which is the peak traffic count in 2015, and it carried 12,554 vehicles immediately west of the Blue Water Bridge in Port Huron, the lowest traffic count in 2015.[5] As the state trunkline highway closest to the lake shore in these areas, I-94 carries the Lake Michigan Circle Tour south of Benton Harbor–St. Joseph and the Lake Huron Circle Tour in the Port Huron area.[6] Sections through the Detroit area are named the Detroit Industrial and Edsel Ford freeways. I-94 in the state is either a four- or six-lane freeway for most of its length; one segment in the Detroit area has up to 10 lanes total near the airport.[7]

Southwestern Michigan

I-94 enters Michigan from Indiana south of New Buffalo. The freeway runs northeasterly through rural Michiana farmland in the southwestern corner of the Lower Peninsula and parallels the Lake Michigan shoreline about three miles (4.8 km) inland. I-94 traverses an area just east of the Warren Dunes State Park as the freeway runs parallel to the Red Arrow Highway,[6][7] a former routing of US 12 named after the 32nd Infantry Division (Red Arrow Division).[8] The freeway crosses its companion highway south of St. Joseph; Red Arrow turns northward carrying the business loop for Benton Harbor and St. Joseph (Business Loop I-94, [BL I-94]). The Interstate curves further inland to bridge the St. Joseph River near Riverview Park.[6][7] East of Benton Harbor, I-94 meets the other end of BL I-94 at an interchange where US 31 merges onto the freeway.[9] East of the Southwest Michigan Regional Airport, I-94/US 31 meets the southern end of I-196; US 31 departs the I-94 freeway to follow I-196, and I-94 continues its course away from Lake Michigan.[6][7]

Photograph
I-94 at Park Road near Coloma

South of Coloma, the trunkline turns eastward and roughly follows the Paw Paw River on a course that takes it south of Watervliet and Hartford. Between the latter two cities, the freeway transitions from northeastern Berrien County into western Van Buren County. It curves around and between Lake Cora and Threemile Lake near the junction with the northern end of M-51. About four miles (6.4 km) further east, I-94 crosses M-40 south of Paw Paw. Continuing eastward, the Interstate runs through Mattawan before entering western Kalamazoo County.[6][7]

In Texas Township, the freeway enters the western edges of the Kalamazoo suburbs. South of the campus for Western Michigan University's College of Engineering & Applied Sciences in Portage, I-94 intersects US 131. Near the Kalamazoo/Battle Creek International Airport, the Interstate passes into the southeastern corner of Kalamazoo before entering Comstock Township. The freeway intersects the eastern end of Business Spur I-94 (BS I-94) at a partial interchange near Morrow Lake in the township. I-94 continues out of the eastern Kalamazoo suburbs, paralleling the Kalamazoo River through the Galesburg area.[6][7] Before crossing into Calhoun County on the west side of Battle Creek,[1] I-94 has the only driveway on any of Michigan's Interstate Highways for a gate providing access for military vehicles into the Fort Custer Training Center.[10]

The Interstate enters Calhoun County southwest of the W. K. Kellogg Airport and enters the city of Battle Creek. Immediately east of the county line, the freeway has an interchange with the western end of Battle Creek's business loop. Next to Lakeview Square Mall, I-94 meets its only auxiliary Interstate in Michigan: I-194. I-94 turns to the northwest to round Beadle Lake, intersecting M-294 before spanning the Kalamazoo River. East of the river crossing, the freeway meets an interchange for M-96, M-311, and the eastern end of the Battle Creek business loop near FireKeepers Casino Hotel in Emmett Township. Turning back eastward, the Interstate exits the eastern Battle Creek suburbs and continues to an interchange with I-69 near Marshall; the business loop for Marshall follows I-69 southward.[6][7]

Into Metro Detroit

Continuing eastward, I-94 traverses rural land on the north side of Marshall. The freeway runs north of, and parallel to, the Kalamazoo River through eastern Calhoun County. It angles southeasterly toward Albion before returning to an easterly course on the north side of town. I-94 crosses into western Jackson County before intersecting M-99. From there, it runs generally due east with a jog around Parma. West of the county airport, the Jackson business loop follows M-60 southward, and I-94 travels through the north side of Jackson. North of downtown, US 127 merges in from the north and runs concurrently with I-94 around the city. Southeast of Michigan State Prison, US 127 departs to the south, and I-94 continues eastward through the rest of the county.[6][7]

US 23 interchange in Pittsfield Township

The freeway runs north of the Chrysler Chelsea Proving Grounds in Chelsea next to the M-52 interchange. As I-94 continues easterly, it passes into the western edge of the Ann Arbor area. West of downtown, the M-14 freeway splits off to the northeast, and the Interstate turns to the south and southeast to curve around the south side of the city. The freeway passes between Briarwood Mall and Ann Arbor Municipal Airport. On the southeastern corner of Ann Arbor, I-94 intersects US 23 and continues around the south side of Ypsilanti. South of that city, the freeway also carries US 12 and crosses the Huron River north of the river's mouth at Ford Lake. I-94 jogs southeasterly around the south side of Willow Run Airport complex, separating from US 12 and entering Wayne County.[6][7]

I-94 as seen from the air near Detroit Metropolitan Airport

South of Willow Run, the Interstate parallels the north shore of Belleville Lake. East of the water body, it intersects I-275 near the northwest corner of Detroit Metropolitan Airport and angles northeasterly through the southwestern Detroit suburbs along the Detroit Industrial Freeway. I-94 uses the Gateway Bridge over the single-point urban interchange (SPUI) at US 24 (Telegraph Road) in Taylor;[6][7] these bridges were inspired by Super Bowl XL and provide a western entrance to the city.[11] Further east, the Interstate intersects M-39 (Southfield Freeway) and passes the Uniroyal Giant Tire in Allen Park. I-94 then turns to the northeast through the Ford River Rouge complex in Dearborn before turning back easterly on the Edsel Ford Freeway into Detroit.[6][7]

I-94 traverses Detroit in an east–west direction well inland of, and parallel to, the Detroit River. The freeway intersects I-96 (Jeffries Freeway) and M-10 (Lodge Freeway) on the West Side, passing the main campus of Wayne State University before entering the East Side at M-1 (Woodward Avenue). Immediately east of the interchange with I-75 (Chrysler Freeway), I-94 forms the southern border of the Milwaukee Junction district. The Edsel Ford Freeway continues through residential neighborhoods of Detroit's East Side. The Interstate turns more northerly, mimicking the shoreline of Lake St. Clair, and exits Detroit for Harper Woods. Just north of the interchange for M-102 (Vernier Road), the freeway crosses 8 Mile Road and enters Macomb County.[6][7]

North to Canada

Running northward through Macomb County, I-94 meets the eastern end of I-696 (Reuther Freeway) about three miles (4.8 km) north of the county line in St. Clair Shores. The freeway continues to parallel the lakeshore and travels to the west of Selfridge Air National Guard Base in Harrison Township. It turns back to the northeast at 23 Mile Road at the interchange with M-3 and M-29. North of 26 Mile Road, the freeway exits the northern suburbs and passes into farmland in The Thumb region.[6][7]

I-94 eastbound approaching exit 271 in Port Huron

South of Michigan Meadows Golf Course, I-94 crosses County Line Road and enters St. Clair County. The freeway continues northeasterly as far as Marysville before turning northward near St. Clair County International Airport. From there, it runs roughly parallel to the St. Clair River. The Interstate travels along the western edge of residential areas for Marysville and Port Huron as it continues northward. Immediately west of downtown Port Huron, it intersects I-69; the two freeways merge and turn first east and then north through an interchange that also features connections to BL I-69.[6][7]

I-94/I-69 turns back to the east about a mile (1.6 km) north of their confluence to span the Black River north of downtown. On the eastern bank of the river, there is one final interchange for M-25 and BL I-69/BL I-94 before the freeway reaches the toll and customs plazas for the twin-span Blue Water Bridge. Past these plazas, I-94/I-69 ascends the approach to the bridge which crosses the St. Clair River to Point Edward (Sarnia), Ontario. At the international boundary at the center of the river, the Interstate designations jointly terminate, becoming Ontario Highway 402.[6][7]

History

Predecessor highways

Map of the pre-statehood Indian trails

The first major overland transportation corridors in the future state of Michigan were the Indian foot trails.[12] One of these, the St. Joseph Trail, followed the general route of the modern I-94 across the state from the Benton Harbor–St. Joseph area east to the Ann Arbor area.[13] The State Trunkline Highway System was created on May 13, 1913, by an act of the Michigan Legislature; at the time, Division 6 corresponded to the rough path of today's I-94.[14] In 1919, the Michigan State Highway Department (MSHD)[a] signposted the highway system for the first time,[17] and three different highways followed sections of the modern I-94 corridor. The original M-11 ran from the Indiana state line north to Coloma where M-17 connected easterly to Detroit. The third highway was M-19 from Detroit northeast to Port Huron.[18]

On November 11, 1926, the United States Numbered Highway System was approved by the American Association of State Highway Officials (AASHO),[19][b] and the original route of US 12[c] replaced the highways from the state line northeasterly to Detroit; US 31 overlapped the highway between St. Joseph and Watervliet. The remainder of the future I-94 corridor was served by US 25 between Detroit and Port Huron.[21] The first span of the Blue Water Bridge opened between Port Huron and Point Edward, Ontario, in 1938.[22]

Early conversions to freeways

M-112 marker
M-112
LocationYpsilanti–Detroit
ExistedSeptember 12, 1942[23]–Mid-1956[24][25]

The first segments of upgraded highways along the future route of I-94 were added during World War II. Construction on the Willow Run Expressway started in 1941 before the US entered the war. It was opened on September 12, 1942, to provide improved access to Ford Motor Company's Willow Run bomber plants.[23] The highway was given the M-112 designation at the time.[26] The expressway was extended eastward as the Detroit Industrial Expressway into Detroit; the first section opened in 1943 and the remainder was completed in March 1945.[23] Land acquisition for the Edsel Ford Freeway started in 1945. Originally referred to as the Crosstown Freeway, the freeway became known as the Edsel Ford Freeway following an April 1946 petition.[27] The interchange between the Lodge Freeway and the Edsel Ford Freeway was built in 1953 as the first full freeway-to-freeway interchange in the US.[28][29] In mid-1956, the M-112 designation was decommissioned and replaced by a rerouted US 12.[24][25] During the mid-1950s, the Detroit Streets and Rails campaign proposed a high-speed rail line in the median of the Willow Run, Detroit Industrial and Edsel Ford freeways; instead of building the rail line, special boarding stations adjacent to dedicated bus lanes in the interchanges along the highway were used.[30]

In other parts of the state, other segments of highway were built to bypass the cities along the future I-94 corridor. In 1940, a southern bypass of Battle Creek opened along Columbia Avenue, and the former routing through downtown on Michigan Avenue became Business US 12 (Bus. US 12).[31][32] In late 1951 or early 1952, a northerly bypass of Jackson opened, and the former route through downtown on Michigan Avenue became another Bus. US 12.[33][34] By the next year, the western half of the Jackson bypass opened, including a bypass of Parma.[35][36] In 1954, a new bypass of Kalamazoo and Galesburg opened; US 12 was rerouted to follow the new highway while M-96 replaced part of the old route and US 12A in the area.[37][38]

The first planning maps from 1947 for what later became the Interstate Highway System included a highway along I-94's route in Michigan.[39] This highway was included on the 1955 plan for the "National System of Interstate and Defense Highways" with a proposed spur in the Battle Creek area.[40] The modern I-94 was numbered I-92 between Benton Harbor–St. Joseph and Detroit with I-77 from Detroit to Port Huron in the August 1957 plans.[41]

1958 planning map for Michigan's Interstate Highways

In April 1958, the MSHD wanted to provide a single number for a more direct routing of a Detroit–Chicago freeway; the state proposed rerouting I-94 to replace I-92 in the state, but retained the I-77 designation.[42] On June 27, 1958, AASHO adopted their original numbering plan for Michigan, minus the state's proposed changes.[43] Around the same time, a section of M-146 near Port Huron was converted into an approach freeway for the Blue Water Bridge.[44][45]

Interstate Highway era

In January 1959, officials announced that sections of US 12, the Willow Run, Detroit Industrial and Edsel Ford expressways were to be given the I-94 designation, temporarily co-designated with US 12. These sections connected Ann Arbor to Detroit, along with a bypass of Kalamazoo to Galesburg and a bypass of Jackson.[46] Later that year, additional segments of I-94 were opened, starting with a 10-mile (16 km) section from Hartford to Coloma, then another from Paw Paw to Kalamazoo which connected with a segment between Galesburg to Battle Creek. The overall 45-mile (72 km) section from Paw Paw to Battle Creek was dedicated on December 7, 1959.[47] In addition, a new northwest–southeast section of freeway was built east of Ypsilanti to create a more gradual curve in the routing between present-day exits 185 and 186,[48] the original routing of the Willow Run Expressway having followed present-day Wiard Road.[49] Signage for the state's Interstate Highways was placed on hold pending finalization of the numbering scheme,[50] and by late 1959 that signage was being added starting with I-75[51] and followed by the other open segments of freeway in the state.[2]

Sections of freeway opened in southwestern Michigan in 1960 between the Benton Harbor–St Joseph area and between Jackson and Ann Arbor; the latter was built over existing portions of US 12.[45] In this year, Michigan became the first state to complete a border-to-border toll-free Interstate within their state, running for 205 miles (330 km) from Detroit toward New Buffalo,[52] creating the longest toll-free freeway in the country at the time.[53]

In January 1962, the US 12 designation was removed from the I-94 freeway. In the process, the designation was transferred to replace the US 112 designation in its entirety.[54] After this transfer, I-94 was no longer concurrent with US 12, except for the Ypsilanti bypass.[55] In 1963, the freeway was extended south of New Buffalo to end at M-239. Traffic was diverted down M-239 into Indiana where State Road 39 carried traffic the rest of the way to the Indiana Toll Road.[56] By the end of the year, a section of highway opened between Mount Clemens and Marysville, and US 25 was rerouted to run concurrently along the freeway from the New Baltimore area northward.[57][58]

A landmark along I-94 in Allen Park, the Uniroyal Giant Tire was installed there in 1966.[59]

The eastern terminus of I-94 in the Port Huron area was dedicated on October 14, 1964, signaling the completion of the highway between Marysville and the Blue Water Bridge.[60] This completion displaced part of the M-146 bypass of Port Huron, the southern leg of which was retained as a connector to present-day Lapeer Road.[61] Two years later, the gap between the Wayne–Macomb county line and the end of the freeway near Mount Clemens was filled in when another section of freeway opened.[62][63] In late 1964, a plan was approved to improve the interchange with Telegraph Road (US 24), as the original interchange did not feature access in all directions.[64] North of Albion, the route of the freeway previously crossed a branch of the New York Central Railroad at-grade; the crossing was eliminated when the tracks were removed in 1968.[65]

The sections originally designated as the Willow Run Expressway were rebuilt from Rawsonville Road in Belleville to Ozga Road in Romulus starting in 1972. As part of this reconstruction, the segment between Haggerty and Ozga roads was widened from four to six lanes, and the eastbound lanes were realigned to facilitate construction of an interchange with I-275, a western bypass of Detroit which was under construction at the time. The Willow Run segment was also resurfaced at this point, as the old road bed did not contain steel mesh.[23] Construction of this interchange also obliterated a partial interchange with Huron River Drive.[66][67]

The final section of I-94 in Michigan opened to traffic on November 2, 1972, when the connection across the state line into Indiana was dedicated. This last segment in Michigan between M-239 and the state line opened when Indiana completed an 18-mile (29 km) segment of freeway in their state.[68]

Since completion

The interchange with the Southfield Freeway (M-39) was closed entirely in 1985 to replace the original exit design, which included four on-ramps that sharply merged into the left lanes of I-94.[69] Reconstruction added new on-ramps that merge into the freeway's right lane, while also moving the carriageways of I-94 closer together.[70]

Aftermath of the Flight 255 crash, N312RC's debris field scattered along Middlebelt Road at I-94 in Romulus

On August 16, 1987, Northwest Airlines Flight 255 crashed after attempting to take off from Detroit Metropolitan Airport, killing all but one passenger upon exploding at the I-94 overpass over Middlebelt Road;[71] that overpass was not damaged in the crash.[72] The freeway was closed until August 18,[73] and a memorial was later installed near the interchange between I-94 and Middlebelt Road.[74]

The completion of I-69 in the 1980s, and the approval of the North American Free Trade Agreement, increased traffic at the Blue Water Bridge. A new toll and customs plaza was built in 1991,[75] and, later the next year, an international task force determined that traffic on the existing structure was exceeding capacity. Environmental planning started in 1993, and construction started on the second span between Port Huron and Point Edward, Ontario in 1995.[76] In July 1997, the second span opened.[77] The original span was closed for rehabilitation, and both were opened to traffic in 1999.[76]

The interchange with US 24 (Telegraph Road) following its mid-1960s redesign had only two bridges, and left-hand exits were used throughout.[78] This interchange was reconfigured in 2005 to a SPUI design that was completed in December of that year.[79] A pair of bridges called the Gateway Arch Bridges (alternately "Gateway to Detroit"[80]) was incorporated in the new interchange.[81]

In 2011, construction was started to widen I-94/I-69 approaching the Blue Water Bridge and to allow for dedicated local traffic and bridge traffic lanes.[82] The lane configuration changes confused drivers in the area, especially motorists with outdated GPS devices;[83] because of this, MDOT installed updated signs complete with American and Canadian flags to help prevent drivers from heading to Canada by mistake.[84]

Additional construction in the Port Huron area started in late 2013 to rebuild and reconfigure the I-94/I-69 interchange outside the city. The project improved 3.7 miles (6.0 km) of freeway, replaced several bridges and ramps and cost $76 million (equivalent to $98 million in 2023[85]). In June 2014, MDOT closed the ramps from I-69 eastbound to BL I-69 through the interchange until later in the year.[86] The project was completed in September 2015.[87]

In 2016, the sections of I-94 from the Indiana state line to the M-63 interchange was designated as part of the West Michigan Pike Pure Michigan Byway.[88] The West Michigan Pike originated in efforts in the 1910s to improve a highway along the western part of the Lower Peninsula of Michigan and to increase tourism along the Lake Michigan shore. The auto trail was eventually superseded by US 12 and US 31 after the creation of the United States Numbered Highway System in 1926.[89]

In 2020, work began on the final link of the St. Joseph Valley Parkway to connect the US 31 freeway to I-94 east of Benton Harbor. The project cost $121.5 million and involved reconstructing the interchange with the eastern terminus of BL I-94 and 3.5 miles (5.6 km) of I-94 in the area. US 31 was rerouted to follow its new freeway section for 1.8 miles (2.9 km) from the previous end of the freeway at Napier Avenue that opened in 2003 to I-94 at BL I-94, where US 31 then followed I-94 to the I-196 interchange as before.[90] This new routing opened on November 9, 2022.[9]

In December 2022, the Michigan Department of Transportation (MDOT) procured a statewide tolling study. Under the study, I-94 would be the first highway to be converted into a toll road starting in 2028.[91] Lawmakers have not yet acted upon the department's recommendation in the proposal.[92]

Construction began on August 7, 2023, on a privately funded three-mile (4.8 km) MDOT pilot project to upgrade the left lane for connected and autonomous vehicles between Ann Arbor and Detroit.[93]

Memorial highway names

Sections of I-94 are named for businessman Edsel Ford (left) and Congressman James O'Hara (right).

As the original expressway through the center of Detroit was being planned in the 1940s, it was unofficially named the Harper–McGraw Expressway after the streets along which it was to run. There was some initial support to name it after Roy D. Chapin, the late president of the Hudson Motor Car Company and a former US secretary of commerce under President Herbert Hoover. On April 23, 1946, the Detroit Common Council voted instead to name the highway after Edsel Ford, the son of Henry Ford and president of the Ford Motor Company from 1918 until his death in 1943.[94]

Two other original sections of I-94's predecessor highways in the Detroit area were given early names. The westernmost of these is the Willow Run Expressway, named for the Willow Run complex. The plants at Willow Run produced B-24 Liberator bombers for Ford Motor Company during World War II.[95] The second, the Detroit Industrial Expressway, continued the route of the Willow Run Expressway eastward into Detroit. Both highways were built to move workers from Detroit to the industrial plants at Willow Run during the war and were later incorporated into I-94 in the 1950s as part of a Detroit–Chicago highway.[96]

The section of I-94 northeast of Detroit was named after former Congressman James G. O'Hara by the Michigan Legislature. O'Hara was a World War II veteran who served in the US House of Representatives from 1959 until 1977. During his tenure in Congress, he procured federal funds for the construction of I-94 through his district. The first attempt to name the highway after him failed in 1991, but the honor was included in a budget bill passed in 1997. The section of I-94 was dedicated on October 16, 1998, after donors privately raised nearly $10,000 (equivalent to $17,000 in 2023[85]) to pay for the highway signs.[97]

A segment of I-94 in Battle Creek between the exits for BL I-94 and I-194 was named the 94th Combat Infantry Division Memorial Highway by the Michigan Legislature in 2002. The name honors the US Army's 94th Infantry Division, which was activated at nearby Fort Custer in 1942 and served with distinction in the European theater of World War II. Because the unit originated in Battle Creek, and its number matched that of the freeway, the Legislature added the designation by passing Public Act 305 of 2002. The name was dedicated in ceremonies at a rest stop along the section of I-94 on September 28, 2002.[98]

Another piece of I-94 in Calhoun County was designated in 2004 as part of the Underground Railroad Memorial Highway.[d] Starting in 1990, the National Park Service started working to identify routes of the Underground Railroad. The Battle Creek area was active in the railroad during the Civil War, and the section of I-94 between exits 98 and 110 east of Battle Creek was included in the memorial designation.[99]

In June 2012, after a resolution passed by the Michigan Legislature was signed by Governor Rick Snyder, a portion of I-94 in Taylor between Inkster and Pelham roads was named the Auxiliary Lt. Dan Kromer Memorial Highway after a 20-year veteran of the Taylor Police Department, who was killed in 2010 while helping motorists who had car trouble.[100]

Exit list

CountyLocationmi[1]kmExitDestinationsNotes
BerrienNew Buffalo Township0.0000.000
 I-94 west – Chicago		Indiana state line
1.4462.3271
 M-239 south (Harbor Country Drive) – New Buffalo		Formerly signed La Porte Road; northern terminus of M-239; New Buffalo signed eastbound only
3.556–
3.582		5.723–
5.765		4 US 12 / LMCT – Three Oaks, Niles, New BuffaloWestern end of LMCT concurrency; signed as exits 4A (east) and 4B (west); Three Oaks signed eastbound only
New Buffalo–Chikaming township line6.23210.0296Union PierConnectss to Union Pier Road
Chikaming Township12.01519.33612SawyerConnects to Sawyer Road
Bridgman15.56125.04316BridgmanConnects to Red Arrow Highway
Stevensville21.52134.63522John Beers Road – StevensvilleStevensville signed eastbound only
Lincoln Township23.35837.59123
 BL I-94 east (Red Arrow Highway) / LMCT – St. Joseph, Benton Harbor, Stevensville		Eastern end of LMCT concurrency; BL I-94, Benton Harbor, and St. Joseph signed eastbound only; Stevensville and Red Arrow Highway signed westbound only; western terminus of BL I-94
St. Joseph Township26.95743.38327 M-63 (Niles Avenue)
Benton Township28.25345.46928 M-139 (Scottdale Road)
29.49647.46929Pipestone Road
30.40848.93730Napier Avenue
32.351–
32.360		52.064–
52.078		33
 US 31 south – South Bend

 BL I-94 west (Main Street) – Benton Harbor		Western end of US 31 concurrency; signed as exits 33A (US 31) and 33B (BL I-94/Main Street westbound, Main Street eastbound); eastern terminus of BL I-94
34.144–
34.167		54.949–
54.986		34

 I-196 north / US 31 north – South Haven, Holland, Grand Rapids		Eastern end of US 31 concurrency; southern terminus of I-196; signs westbound omit Grand Rapids; signs eastbound omit South Haven
Coloma Township38.52862.00539Millburg, ColomaConnects to Friday Road
Watervliet Township40.76265.60041 M-140 – Watervliet, Niles
Van BurenHartford Township45.76373.64846HartfordConnects to CR 687
Lawrence Township51.73083.25152LawrenceConnects to CR 365
Paw Paw Township56.28190.57556 M-51 – Decatur, DowagiacNorthern terminus of M-51
Paw Paw59.95896.49360 M-40 – Paw Paw, Lawton
Mattawan65.826105.93766MattawanConnects to Main Street
KalamazooTexas Township71.592115.216729th Street – Oshtemo
Portage73.591–
73.649		118.433–
118.527		74 US 131 – Kalamazoo, Grand Rapids, Three RiversSigned as exits 74A (south) and 74B (north); former western terminus of BL I-94; Kalamazoo signed eastbound only; exit 34 on US 131
74.845120.45175Oakland Drive
76.106122.48176Westnedge Avenue
Kalamazoo77.753125.13178Portage Road
Kalamazoo–Comstock Township line79.576128.06580Sprinkle Road, Cork Street
Comstock Township80.911130.21481
 BS I-94 west – Downtown Kalamazoo		Westbound exit and eastbound entrance; eastern terminus of BS I-94
85.103136.9608535th Street – Augusta, GalesburgGalesburg and Augusta signed eastbound only; 35th Street signed westbound only
Charleston Township87.945141.53488Climax, GalesburgClimax signed eastbound only; Galesburg signed westbound only; connects to 40th Street
91.887147.878Access Gate to Fort Custer Training CenterAt-grade intersection for military vehicles only; only driveway on an Interstate Highway in Michigan[10]
CalhounBattle Creek92.055148.14892
 BL I-94 east / M-37 – Springfield, Battle Creek, Augusta, Climax		BL I-94, Battle Creek, and Springfield signed eastbound only; Augusta and Climax signed westbound only; western terminus of BL I-94; southern terminus of M-37
95.082153.02095Helmer Road – SpringfieldSigns eastbound omit Springfield
97.116156.29397Capital Avenue
Battle Creek–Emmett Township line98.239–
98.269		158.100–
158.149		98
 I-194 north / M-66 – Sturgis, Downtown Battle Creek		Signed as exits 98A (south, M-66) and 98B (north, I-194/M-66); southern terminus of I-194; exit 1 on I-194
Emmett Township99.748160.529100 M-294 (Beadle Lake Road)Southern terminus of M-294
103.629166.775103 BL I-94 / M-96 – Battle CreekFormer partial interchange with westbound exit to westbound M-96 and eastbound entrance from eastbound M-96 only; permanently closed in 2009[101]
103.829167.097104
 BL I-94 west / M-96 (Michigan Avenue)

 M-311 south (11 Mile Road)		Signs eastbound omit BL I-94; eastern terminus of BL I-94; northern terminus of M-311
Marshall Township108.175–
108.198		174.091–
174.128		108 I-69 – Ft. Wayne, LansingWestern terminus of BL I-94; exit 38 on I-69
Marshall109.879176.833110Old 27Former US 27
Marengo Township111.997180.242112
 BL I-94 west (Partello Road) – Marshall		Partello Road signed eastbound only; BL I-94 and Marshall signed westbound only; eastern terminus of BL I-94
115.359185.65211522+1⁄2 Mile Road
Sheridan Township118.552190.791119
 M-199 east (26 Mile Road)		Western terminus of M-199
Albion121.364195.316121
 BL I-94 east (28 Mile Road) – Albion		BL I-94 and Albion signed eastbound only; 28 Mile Road signed westbound only; western terminus of BL I-94
JacksonParma Township123.830199.285124
 BL I-94 west / M-99 – Albion, Eaton Rapids		Signs eastbound omit BL I-94 and Albion; eastern terminus of BL I-94
126.872204.181127Concord Road
Parma–Sandstone township line128.417206.667128Michigan Avenue
Sandstone Township129.498208.407130Parma Road
132.633213.452133Dearing Road – Spring ArborSpring Arbor signed eastbound only
Blackman Township135.785–
135.804		218.525–
218.555		136

 M-60 west / BL I-94 east – Jackson, Spring Arbor		Signs westbound omit Jackson; signs eastbound omit Spring Arbor; western terminus of BL I-94; eastern terminus of M-60
137.035220.536137Airport Road
138.393222.722138

 US 127 north / M-50 west – Lansing



 Bus. US 127 south / M-50 east – Jackson		Western end of US 127 concurrency; northern terminus of Bus. US 127; exit 43 on US 127; reconstructed into a diverging diamond interchange in 2022
139.008223.712—Lansing AvenueFormer interchange removed in 1962[102][103]
139.589224.647139 M-106 (Cooper Street) – Downtown Jackson
140.615226.298141Elm Road
141.617227.910—Dettman RoadFormer eastbound exit and westbound entrance; removed in 1962[102][103]
Leoni Township141.926–
141.938		228.408–
228.427		142
 US 127 south – Hudson		Eastern end of US 127 concurrency; exit 40 on US 127
143.849231.503144
 BL I-94 west – Jackson		Partial interchange that had served Ann Arbor Road with westbound exit and eastbound entrance; exit removed in 2012[104][105]
144.537232.610145
 BL I-94 west / Sargent Road – Jackson		Signs eastbound omit BL I-94 and Jackson; eastern terminus of BL I-94
147.200236.895147Race RoadEastbound entrance via Ann Arbor Road
Grass Lake Township150.061241.500150Mt. Hope Road – Grass Lake
153.157246.482153Clear Lake Road
WashtenawSylvan Township155.822250.771156Kalmbach Road
157.237253.048157Old US 12, Pierce Road
Chelsea159.410256.546159 M-52 – Chelsea, Manchester
Lima Township162.139260.937162Old US 12, Jackson Road
Scio Township167.072268.876167Baker Road – Dexter
169.213272.322169Zeeb Road
171.001275.199171
 M-14 east – Plymouth		Eastbound exit and westbound entrance; western terminus of M-14
Ann Arbor172.168277.078172
 BL I-94 east (Jackson Avenue) – Ann Arbor		Signs westbound omit BL I-94; western terminus of BL I-94; no access from eastbound I-94 to westbound Jackson Avenue
175.081281.766175Ann Arbor–Saline Road
176.548284.126177State Street
Pittsfield Township179.522–
179.540		288.913–
288.942		180
 US 23 / BL I-94 west – Ann Arbor, Flint, Toledo		Signed as exits 180A (south, US 23) and 180B (north, US 23/BL I-94); signs eastbound omit BL I-94; eastern terminus of BL I-94; eastbound exit uses collector-distributor lanes; Flint signed eastbound only, Ann Arbor signed westbound only; exit 35 on US 23
179.792289.347— US 23 (Carpenter Road)Original routing of US 23;[49] was a four-ramp partial cloverleaf interchange that was obliterated when current US 23 exit was built in 1962[106][107]
181.265291.718181
 US 12 west (Michigan Avenue) – Saline, Ypsilanti		Western end of US 12 concurrency; signed as exits 181A (west) and 181B (east) westbound; Ypsilanti signed eastbound only, Saline signed westbound only
Ypsilanti183.084294.645183

 Bus. US 12 east (Huron Street) – Downtown Ypsilanti		Western terminus of Bus. US 12
183.986296.097184Grove StreetExit was removed in 1967; was a complete interchange with westbound access via right-in/right-out to Emerick Street[108][109]
Ypsilanti Township185.023297.766185
 US 12 east (Michigan Avenue) – Willow Run Airport		Eastern end of US 12 concurrency; eastbound exit and westbound entrance
186.227299.703186Willow Run AirportWestbound exit and eastbound entrance; connects to Wiard Road
187.129301.155187Rawsonville Road
WayneVan Buren Township190.240306.162190Belleville Road – Belleville
192.572309.915192Haggerty RoadWest access to Lower Huron Metropark
193.368311.196193Huron River DriveExit removed in 1973; was an eastbound exit and westbound entrance via Northline Road[110][111]
Romulus193.978–
194.002		312.177–
312.216		194 I-275 – Flint, ToledoSigned as exits 194A (south) and 194B (north) eastbound; westbound exit uses collector-distributor lane; exit 17 on I-275
195.434314.521196Wayne Road – Wayne
196.368316.024197Vining Road
197.804318.335198 Merriman Road – Detroit Metro AirportCollector-distributor lanes connect with exit 199; signed as exits 198A (Metro Airport) and 198B (Merriman Road north) eastbound
198.548319.532199Middle Belt RoadConnected to exit 198
Taylor200.317322.379200Ecorse Road – InksterDirectional access from I-94 to Ecorse Road (eastbound to eastbound and westbound to westbound only); Inkster signed westbound only
202.002325.091202 US 24 (Telegraph Road)
Allen Park204.388–
204.399		328.931–
328.948		204 M-39 (Southfield Freeway) / Pelham RoadExit 1 on M-39
206.398332.165206Oakwood BoulevardSigned as exits 206A (south) and 206B (north) westbound; access to The Henry Ford
Dearborn207.626–
208.011		334.142–
334.761		208Schaefer Road, Greenfield RoadEastbound exit to Greenfield Road and westbound entrance from southbound Greenfield Road only; Schaefer Road access via trumpet interchange with unnamed road to Ford River Rouge Complex and partial cloverleaf interchange to Schaefer and Butler roads
208.882336.163209Rotunda DriveWestbound exit and eastbound entrance
209.795337.632210A US 12 (Michigan Avenue) / Wyoming Avenue – DearbornSigned as exit 210 eastbound; no westbound exit to Wyoming Avenue; access from Wyoming Avenue to eastbound I-94 at exit 210B
Detroit210.048–
210.352		338.039–
338.529		210B
 M-153 west (Ford Road) / Addison Avenue		Westbound exit and eastbound entrance; eastbound entrance via Weir Street; eastern terminus of M-153
210.669339.039211ALonyo AvenueWestbound exit and eastbound entrance
211.268340.003211BCentral Avenue, Cecil AvenueWestbound exit and eastbound entrance; service drives connect to Central Avenue
211.793340.848212ALivernois AvenueSigned as exit 212 westbound
212.597342.142212BWarren AvenueIndirect access via 30th Street; westbound exit is via exit 213A
212.819–
212.841		342.499–
342.534		213AWest Grand Boulevard, Warren AvenueWestbound exit and eastbound entrance; former eastbound exit removed 2012[112]
213.363–
213.407		343.374–
343.445		213B I-96 (Jeffries Freeway) – Lansing, Bridge to CanadaExit 190A on I-96
213.598–
213.700		343.753–
343.917		214A M-5 (Grand River Avenue) / Linwood AvenueSigned as exit 214 westbound; second eastbound entrance from 14th Street; signs eastbound omit Linwood Avenue
214.414345.066214BTrumbull AvenueEastbound exit and westbound entrance
214.712–
214.744		345.545–
345.597		215 M-10 (Lodge Freeway) – Downtown Detroit, SouthfieldSigned as exits 215A (south) and 215B (north); exit 4 on M-10
215.229–
215.562		346.377–
346.913		215C M-1 (Woodward Avenue) / John R. Street / Brush StreetJohn R. Street signed eastbound only, Brush Street signed westbound only
215.868–
215.882		347.406–
347.428		216A I-75 (Chrysler Freeway) – Flint, ToledoExit 53 on I-75; includes entrances from Warren Avenue
216.013347.639216BRussell StreetEastbound exit only
216.603348.589217AChene Street, East Grand BoulevardNo westbound exit or entrance from southbound East Grand Boulevard to westbound I-94; westbound access to East Grand Boulevard northbound only at exit 217B
217.333349.764217BMount Elliott AvenueSigned as exit 217 (Mount Elliott Avenue, East Grand Boulevard) westbound
218.226351.201218 M-53 (Van Dyke Avenue)
219.016352.472219 M-3 (Gratiot Avenue)
219.560353.348220AFrench RoadNo westbound exit
219.978–
220.086		354.020–
354.194		220BConner Avenue – Detroit City AirportNo access from southbound Conner Avenue to eastbound I-94
221.387–
221.622		356.288–
356.666		222AOuter Drive, Chalmers Avenue
222.292357.744222BHarper AvenueEastbound exit and westbound entrance
223.048358.961223Cadieux Road
223.755360.099224AMoross Road
Harper Woods224.430361.185224BAllard Avenue, Eastwood DriveNo entrances to I-94; signs eastbound omit Eastwood Drive
225.352–
225.376		362.669–
362.708		225
 M-102 west (8 Mile Road, Vernier Road)		Eastern terminus of M-102; additional westbound entrance from southbound Harper Avenue
MacombEastpointe–St. Clair Shores city line226.893365.1492279 Mile Road
Eastpointe–Roseville–St. Clair Shores city tripoint227.967366.87722810 Mile Road
Roseville–St. Clair Shores city line228.742–
229.426		368.125–
369.225		229
 I-696 west – Lansing
11 Mile Road		Eastern terminus of I-696
230.014370.17223012 Mile Road
Roseville230.890371.581231 M-3 (Gratiot Avenue)Eastbound exit to northbound M-3 and westbound entrance only
231.354372.328232Little Mack Avenue
Clinton Township234.209376.923234Harper AvenueSigned as exits 234A (south) and 234B (north)
Harrison Township234.873377.991235Shook RoadWestbound exit and eastbound entrance
235.909–
235.921		379.659–
379.678		236Metropolitan Parkway
Mt. Clemens237.266381.843237North River Road – Mt. Clemens
Harrison–Chesterfield township line240.027–
240.259		386.286–
386.659		240 M-59 – Selfridge ANG, UticaSigned as exits 240A (M-59 east, Selfridge ANG) and 240B (M-59 west, Utica) eastbound; eastern terminus of M-59; roadway continues beyond terminus as William P. Rosso Highway
Chesterfield Township241.193388.16324121 Mile Road
243.453391.800243
 M-3 south – Utica

 M-29 north – Algonac, New Baltimore		Northern terminus of M-3; southern terminus of M-29; signs eastbound omit M-3 and Utica; signs westbound omit Algonac
246.737397.085247
 M-19 north – Richmond, New Haven		Eastbound exit and westbound entrance; southern terminus of M-19
Lenox Township248.118399.30724826 Mile Road – Marine CityWestbound access to New Haven
St. ClairCasco–Columbus township line257.185413.899257Richmond, St. ClairSigns eastbound omit Richmond; connects to Fred W. Moore Highway
St. Clair Township262.131421.859262Wadhams Road
Kimball Township266.330428.617266
 BL I-94 east (Gratiot Road) – Marysville		Signs westbound omit BL I-94; western terminus of BL I-94
Kimball–Port Huron township line269.525433.758269Range Road, Dove StreetSigns westbound omit Dove Street
Port Huron Township271.271–
271.820		436.568–
437.452		271
 I-69 west – Flint, Lansing		Western end of I-69 concurrency; signs eastbound omit Lansing; exit 198 on I-69
271.529436.984
 BL I-69 east – Port Huron		Eastbound exit and westbound entrance; western terminus of BL I-69
273.826440.680274Water Street, Lapeer Avenue – Port HuronSigned as exits 274A (Lapeer Avenue) and 274B (Water Street) eastbound; indirect access to Lapeer Avenue via Lapeer Connector (former M-146); no direct eastbound entrance to Blue Water Bridge
Port Huron275.102442.734275
 M-25 north / LHCT – Lexington


 BL I-69 west / BL I-94 west – Downtown Port Huron		Western end of LHCT concurrency; eastbound last exit before Canada; eastern terminus of BL I-69/BL I-94; southern terminus of M-25; signs eastbound omit BL I-69/BL I-94 and Lexington; no exit number westbound
274.770442.199Toll Plaza (eastbound)
U.S. Customs (westbound)
St. Clair River
Canadian border		275.304–
275.398		443.059–
443.210		Blue Water Bridge (tolled)
Highway 402 east / LHCT – Sarnia, LondonContinuation into Ontario
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Main articles: Interstate 194 and Business routes of Interstate 94 in Michigan
Signage along I-194/M-66, the "Sojourner Truth Downtown Parkway"

There are nine highways related to I-94 in Michigan. The first is the spur into downtown Battle Creek numbered I-194 and nicknamed "The Penetrator"[113] and officially called the "Sojourner Truth Downtown Parkway".[114] This auxiliary Interstate Highway runs for about three miles (4.8 km) to connect I-94 northward into downtown. The other eight highways are business loops of I-94 that connect various cities' downtowns with the main freeway. Unlike I-194, these loops are not freeways. Located from west to east along I-94's routing in Michigan, they serve Benton Harbor–St. Joseph, Kalamazoo, Battle Creek, Marshall, Albion, Jackson, Ann Arbor, and Port Huron.[6]

See also

Notes

  1. ^ The Michigan State Highway Department was reorganized into the Michigan Department of State Highways and Transportation on August 23, 1973.[15] The name was shortened to its current form in 1978.[16]
  2. ^ AASHO was renamed the American Association of State Highway and Transportation Officials (AASHTO) on November 11, 1973.[20]
  3. ^ At the time the United States Numbered Highway System was created, the highway along the modern US 12 through Coldwater and Ypsilanti to Detroit was numbered US 112.[21]
  4. ^ The other highway so designated is a section of US 131.[99]

References

  1. ^ a b c Michigan Department of Transportation (2021). Next Generation PR Finder (Map). Michigan Department of Transportation. Retrieved February 3, 2022.
  2. ^ a b Treloar, James (December 2, 1959). "Expressway Will Remake Southwest Michigan: 55 Miles More Open Next Week". The News-Palladium. Benton Harbor, Michigan. § 2, p. 1. OCLC 10117334. Retrieved August 14, 2016 – via Newspapers.com.
  3. ^ Michigan Department of Transportation (April 23, 2006). National Highway System, Michigan (PDF) (Map). Scale not given. Lansing: Michigan Department of Transportation. Archived from the original (PDF) on August 20, 2008. Retrieved October 7, 2008.
  4. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Archived from the original on September 24, 2012. Retrieved July 1, 2012.
  5. ^ Bureau of Transportation Planning (2015). "Traffic Monitoring Information System". Michigan Department of Transportation. Retrieved December 14, 2016.
  6. ^ a b c d e f g h i j k l m n o p Michigan Department of Transportation (2013). Pure Michigan: State Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. §§ N7–M14, M14–K14. OCLC 42778335, 861227559.
  7. ^ a b c d e f g h i j k l m n o "Overview Map of Interstate 94 in Michigan" (Map). Google Maps. Retrieved August 20, 2013.
  8. ^ Barnett, LeRoy (2004). A Drive Down Memory Lane: The Named State and Federal Highways of Michigan. Allegan Forest, Michigan: The Priscilla Press. p. 183. ISBN 978-1-886167-24-7. OCLC 57425393.
  9. ^ a b Springgate, Jack (November 9, 2022). "New US 31 Route Opens to Warm Receptions". 16 News Now. South Bend, Indiana: WNDU-TV. Retrieved November 10, 2022.
  10. ^ a b Michigan Department of Transportation (n.d.). "Road & Highway Facts". History & Culture. Michigan Department of Transportation. Archived from the original on August 2, 2013. Retrieved August 20, 2013.
  11. ^ Strong, Michael (October 24, 2005). "Detroit Builds Gateway Link Inspired by Super Bowl". Engineering News-Record. Archived from the original on February 5, 2012. Retrieved August 20, 2013.
  12. ^ Morrison, Roger L. (Autumn 1937). "The History and Development of Michigan Highways". Michigan Alumnus Quarterly Review. Vol. 39, no. 54. Ann Arbor: University of Michigan Bureau of Alumni Relations. pp. 59–73. OCLC 698029175.
  13. ^ Mason, Philip P. (1959). Michigan Highways From Indian Trails to Expressways. Ann Arbor, Michigan: Braun-Brumfield. p. 18. OCLC 23314983.
  14. ^ Michigan Legislature (1915) [enacted May 13, 1913]. "Chapter 91: State Reward Trunk Line Highways". In Shields, Edmund C.; Black, Cyrenius P. & Broomfield, Archibald (eds.). The Compiled Laws of the State of Michigan. Vol. 1. Lansing, Michigan: Wynkoop, Hallenbeck, Crawford. pp. 1868–72. OCLC 44724558. Retrieved January 24, 2012 – via Google Books.
  15. ^ Kulsea, Bill & Shawver, Tom (1980). Making Michigan Move: A History of Michigan Highways and the Michigan Department of Transportation. Lansing: Michigan Department of Transportation. p. 27. OCLC 8169232. Retrieved January 18, 2021 – via Wikisource.
  16. ^ Kulsea & Shawver (1980), pp. 30–1.
  17. ^ "Michigan May Do Well Following Wisconsin's Road Marking System". The Grand Rapids Press. September 20, 1919. p. 10. OCLC 9975013.
  18. ^ 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.
  19. ^ McNichol, Dan (2006). The Roads that Built America: The Incredible Story of the US Interstate System. New York: Sterling. p. 74. ISBN 978-1-4027-3468-7. OCLC 63377558.
  20. ^ Federal Highway Administration (December 4, 2012). "November 13". Highway History. Federal Highway Administration. Archived from the original on September 27, 2013. Retrieved August 18, 2013.
  21. ^ a b Michigan State Highway Department (December 1, 1926). Official Highway Condition Map (Map). [c. 1:823,680]. Lansing: Michigan State Highway Department.
  22. ^ Hyde, Charles K. (1993). Historic Highway Bridges of Michigan. Great Lakes Books. Detroit: Wayne State University Press. p. 109. ISBN 978-0-8143-2448-6. OCLC 27011079. Retrieved September 7, 2019 – via Archive.org.
  23. ^ a b c d "Aging Willow Run Expressway Has Served Michigan Well". The Ann Arbor News. July 15, 1972. p. 12. OCLC 9497417. Archived from the original on January 16, 2014. Retrieved August 21, 2013 – via Ann Arbor District Library.
  24. ^ a b Michigan State Highway Department (April 15, 1956). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ M12–M13. OCLC 12701120.
  25. ^ a b Michigan State Highway Department (October 1, 1956). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ M12–M13. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  26. ^ Michigan State Highway Department & Rand McNally (June 1, 1943). Official Michigan Highway Map (Map) (Summer ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. §§ M12–M13.
  27. ^ Michigan Department of Transportation (n.d.). "US 12 (Michigan Avenue)–I-94". Michigan's Historic Bridges. Michigan Department of Transportation. Archived from the original on October 19, 2012. Retrieved August 20, 2013.
  28. ^ Naber, MaryAnn (November 1, 2006). "Final List of Nationally and Exceptionally Significant Features of the Federal Interstate Highway System". Historic Preservation: Interstate Highway System. Federal Highway Administration. Archived from the original on August 11, 2006. Retrieved July 6, 2006.
  29. ^ Michigan Department of Transportation (n.d.). "I-94 EB / I-94 Ramp to M-10". Michigan Department of Transportation. Archived from the original on September 7, 2015. Retrieved August 20, 2016.
  30. ^ Brown, Bernice (n.d.). "Edsel Ford Expressway". Encyclopedia of Detroit. Detroit Historical Society. Archived from the original on November 1, 2013. Retrieved August 21, 2013.
  31. ^ Michigan State Highway Department & Rand McNally (July 15, 1940). Official Michigan Highway Map (Map) (Summer ed.). Scale not given. Lansing: Michigan State Highway Department. Battle Creek inset. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
  32. ^ Michigan State Highway Department & Rand McNally (December 1, 1941). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Battle Creek inset. OCLC 12701143.
  33. ^ Michigan State Highway Department (July 1, 1951). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M11. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  34. ^ Michigan State Highway Department (April 15, 1952). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M11. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  35. ^ Michigan State Highway Department (April 15, 1953). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M11. OCLC 12701120.
  36. ^ Michigan State Highway Department (October 1, 1953). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M11. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  37. ^ Michigan State Highway Department (April 15, 1954). Michigan Water Wonderland: Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M9. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  38. ^ Michigan State Highway Department (October 1, 1954). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. § M9. OCLC 12701120.
  39. ^ Public Roads Administration (August 2, 1947). National System of Interstate Highways (Map). Scale not given. Washington, DC: Public Roads Administration. Retrieved September 4, 2010 – via Wikimedia Commons.
  40. ^ Public Roads Administration (September 1955). "National System of Interstate and Defense Highways" (Map). General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955. Scale not given. Washington, DC: US Government Printing Office. OCLC 416597 – via Wikimedia Commons.
  41. ^ Public Roads Administration (August 2, 1947). National System of Interstate Highways (Map). Scale not given. Washington, DC: Public Roads Administration. Archived from the original on October 23, 2010. Retrieved May 10, 2008.
  42. ^ Michigan State Highway Department (April 25, 1958). "Recommended Numbering: Interstate Highways in Michigan". Lansing: Michigan State Highway Department. Archived from the original on November 21, 2003. Retrieved May 10, 2008.
  43. ^ American Association of State Highway Officials (June 27, 1958). Official Route Numbering for the National System of Interstate and Defense Highways (Map). Scale not given. Washington, DC: American Association of State Highway Officials. Retrieved May 10, 2008 – via Wikimedia Commons.
  44. ^ Michigan State Highway Department (1958). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Port Huron inset. OCLC 12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
  45. ^ a b Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Port Huron inset. OCLC 12701120, 81552576. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1960)
  46. ^ "Temporary Double Signs for Highway". The News-Palladium. Benton Harbor, Michigan. January 15, 1959. § 2, p. 1. OCLC 10117334. Retrieved July 13, 2018 – via Newspapers.com.
  47. ^ "Marshall and Area Chronology for 1959". Marshall Evening Chronicle. December 31, 1959. pp. 4–5. OCLC 18110507. Retrieved August 11, 2018 – via NewspaperArchive.com.
  48. ^ Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Metro Detroit inset. OCLC 12701120, 81552576. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1960)
  49. ^ a b Michigan State Highway Department (1958). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Metro Detroit inset. OCLC 12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
  50. ^ "Michigan Delays Road Number System". Toledo Blade. June 4, 1959. p. 11. OCLC 12962635. Retrieved November 21, 2010 – via Google News.
  51. ^ "Interstate 75 Road Markers Are Unveiled". The Herald-Press. St. Joseph, Michigan. Associated Press. October 13, 1959. p. 3. OCLC 10117184. Retrieved July 10, 2018 – via Newspapers.com.
  52. ^ Michigan Department of Transportation (n.d.). "1960s". History & Culture. Michigan Department of Transportation. Archived from the original on December 22, 2012. Retrieved August 20, 2013.
  53. ^ "Highway System Discussed for Lions Tuesday". Escanaba Daily Press. January 19, 1961. p. 15. OCLC 9670912. Retrieved May 3, 2015 – via Newspapers.com.
  54. ^ "Area Road Signs To Be Changed". The News-Palladium. Benton Harbor, Michigan. Associated Press. January 9, 1962. § 2, p. 5. OCLC 10117334. Retrieved July 13, 2018 – via Newspapers.com.
  55. ^ Michigan State Highway Department (1962). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ N7–M13. OCLC 12701120, 173191490. Retrieved October 17, 2019 – via Michigan History Center.
  56. ^ "South of New Buffalo: I-94 Section Opens Tomorrow". The News-Palladium. Benton Harbor, Michigan. August 14, 1963. § 2 p. 1. OCLC 10117334. Retrieved May 3, 2015 – via Newspapers.com.
  57. ^ Michigan State Highway Department (1963). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ L14–M14. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
  58. ^ Michigan State Highway Department (1964). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ L14–M14. OCLC 12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
  59. ^ Baulch, Vivian M. & Zacharias, Patricia (February 26, 1997). "Detroit's Giant Stove and Tire". The Detroit News. Archived from the original on March 6, 2009. Retrieved May 7, 2016.
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Interstate 94
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