Monitor Charter Township is a charter township of Bay County in the U.S. state of Michigan , organized in 1869. The township's population was 10,687 as of the 2020 census and is included in the Bay City Metropolitan Statistical Area .
147-1010: Interstate 75 ( I-75 ) is a part of the Interstate Highway System that runs north–south from Miami, Florida , to Sault Ste. Marie in the Upper Peninsula of the US state of Michigan . I-75 enters the state from Ohio in the south, north of Toledo , and runs generally northward through Detroit , Flint , and Bay City , crosses the Mackinac Bridge , and ends at the Canadian border in Sault Ste. Marie. The freeway runs for approximately 396 miles (637 km) on both of Michigan's major peninsulas. The landscapes traversed by I-75 include Southern Michigan farmland, northern forests, suburban bedroom communities, and
294-535: A concurrency or overlap. For example, I‑75 and I‑85 share the same roadway in Atlanta ; this 7.4-mile (11.9 km) section, called the Downtown Connector , is labeled both I‑75 and I‑85. Concurrencies between Interstate and US Highway numbers are also allowed in accordance with AASHTO policy, as long as the length of the concurrency is reasonable. In rare instances, two highway designations sharing
441-651: A 28-year-old brevet lieutenant colonel, accompanied the trip "through darkest America with truck and tank," as he later described it. Some roads in the West were a "succession of dust, ruts, pits, and holes." As the landmark 1916 law expired, new legislation was passed—the Federal Aid Highway Act of 1921 (Phipps Act). This new road construction initiative once again provided for federal matching funds for road construction and improvement, $ 75 million allocated annually. Moreover, this new legislation for
588-531: A bond sale to finance construction of the roadway. Financiers stated such a sale was only feasible if the turnpike was to be safe from competition. The Michigan Townships Association called for the abolition of the MTA in 1958. The legislature killed a bill to do so in June 1959, but it later voted to repeal the act that created the authority in 1962. The first sections of freeway for I-75 were opened in 1957, beginning with
735-476: A change in the numbering system as a result of a new policy adopted in 1973. Previously, letter-suffixed numbers were used for long spurs off primary routes; for example, western I‑84 was I‑80N, as it went north from I‑80 . The new policy stated, "No new divided numbers (such as I-35W and I-35E , etc.) shall be adopted." The new policy also recommended that existing divided numbers be eliminated as quickly as possible; however, an I-35W and I-35E still exist in
882-399: A loop from northern Monroe County and continues to connect with I-96 and I-696 . The freeway serves the population of western Wayne County and Detroit Metropolitan Wayne County Airport . The highway was originally intended to connect with I-75 north of Pontiac . I-375 was the shortest signed Interstate in the nation; it serves the immediate downtown Detroit area. I-475 is known as
1029-595: A national road grid with the passage of the Federal Aid Highway Act of 1921 . In 1926, the United States Numbered Highway System was established, creating the first national road numbering system for cross-country travel. The roads were state-funded and maintained, and there were few national standards for road design. United States Numbered Highways ranged from two-lane country roads to multi-lane freeways. After Dwight D. Eisenhower became president in 1953, his administration developed
1176-589: A numbering scheme in which primary Interstates are assigned one- or two-digit numbers, and shorter routes which branch off of longer ones are assigned three-digit numbers where the last two digits match the parent route. The Interstate Highway System is partially financed through the Highway Trust Fund , which itself is funded by a combination of a federal fuel tax and transfers from the Treasury's general fund. Though federal legislation initially banned
1323-491: A proposal for an interstate highway system, eventually resulting in the enactment of the Federal-Aid Highway Act of 1956 . Unlike the earlier United States Numbered Highway System, the interstates were designed to be all freeways, with nationally unified standards for construction and signage. While some older freeways were adopted into the system, most of the routes were completely new. In dense urban areas,
1470-559: A report called Toll Roads and Free Roads , "the first formal description of what became the Interstate Highway System" and, in 1944, the similarly themed Interregional Highways . The Interstate Highway System gained a champion in President Dwight D. Eisenhower, who was influenced by his experiences as a young Army officer crossing the country in the 1919 Motor Transport Corps convoy that drove in part on
1617-409: A single digit prefixed to the two-digit number of its parent Interstate Highway. Spur routes deviate from their parent and do not return; these are given an odd first digit. Circumferential and radial loop routes return to the parent, and are given an even first digit. Unlike primary Interstates, three-digit Interstates are signed as either east–west or north–south, depending on the general orientation of
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#17327719904451764-801: A speed limit of 45 mph (70 km/h) because it is a parkway that consists of only one lane per side of the highway. On the other hand, Interstates 15, 80, 84, and 215 in Utah have speed limits as high as 70 mph (115 km/h) within the Wasatch Front , Cedar City , and St. George areas, and I-25 in New Mexico within the Santa Fe and Las Vegas areas along with I-20 in Texas along Odessa and Midland and I-29 in North Dakota along
1911-460: A speed limit of 80 mph (130 km/h). Other Interstates in Idaho, Montana, Oklahoma, South Dakota and Wyoming also have the same high speed limits. In some areas, speed limits on Interstates can be significantly lower in areas where they traverse significantly hazardous areas. The maximum speed limit on I-90 is 50 mph (80 km/h) in downtown Cleveland because of two sharp curves with
2058-605: A state constitutional amendment in January 1956 that would allow the Michigan Legislature to issue state-guaranteed bonds for part of the MTA's construction expenses. According to The Wall Street Journal , the authority "struggled for survival" in the face of opposition from the MSHD just two months later; the department's actions impaired the authority's appropriations from the state legislature and its ability to sell
2205-474: A suggested limit of 35 mph (55 km/h) in a heavily congested area; I-70 through Wheeling, West Virginia , has a maximum speed limit of 45 mph (70 km/h) through the Wheeling Tunnel and most of downtown Wheeling; and I-68 has a maximum speed limit of 40 mph (65 km/h) through Cumberland, Maryland , because of multiple hazards including sharp curves and narrow lanes through
2352-489: A toll from traffic that crosses the bridge, which as of January 1, 2012, is $ 4 for passenger cars and $ 5 per axle for commercial vehicles and motorhomes. In addition to cash, the MBA offers a pre-paid debit card option for the payment of tolls and accepts credit cards at the toll booths. The authority also provides a driver assistance program that will drive vehicles across the bridge at no additional charge; motorists who use
2499-675: Is 2,942 feet (897 m). The center span over the river is 9,280 feet (2,830 m), flanked by 1,260-foot (380 m) and 830-foot (250 m) spans over the American and Canadian shipping channels, respectively. The bridge was designed by the same firm that handled the Mackinac Bridge for a cost of $ 20 million (equivalent to $ 154 million in 2023). It opened to traffic on October 31, 1962. There are four auxiliary Interstate Highways for I-75 in Michigan. I-275 begins as
2646-498: Is a full interchange for BL I-75/ M-93 that provides the southbound I-75 connection to M-72 as well as access from both directions to Hartwick Pines State Park . Crossing into southern Otsego County , I-75 continues northward through Northern Michigan forests. It passes to the east of the community of Waters and Otsego Lake . North of exit 279, I-75 proceeds by the Gaylord Regional Airport and crosses
2793-543: Is also commonly believed the Interstate Highway System was built for the sole purpose of evacuating cities in the event of nuclear warfare . While military motivations were present, the primary motivations were civilian. The numbering scheme for the Interstate Highway System was developed in 1957 by the American Association of State Highway and Transportation Officials (AASHTO). The association's present numbering policy dates back to August 10, 1973. Within
2940-517: Is the American Legion Memorial Highway , after the organization of the same name . Various sections carry components of the four Great Lakes Circle Tours in the state. Several Indian trails spanned the state along the general path of the contemporary freeway. After statehood, several of these were converted into plank roads that later became some of the first state highways. In the 1920s, five of these were added to
3087-665: Is the busiest in the state: between M-8 (Davison Highway) and McNichols Road in Detroit approximately 194,300 vehicles used the freeway on average each day in 2010; in contrast the lowest traffic level was 3,208 vehicles between the M-48 and M-80 interchanges in Chippewa County . I-75 carries segments of all four Great Lakes Circle Tours in the state. It is also the only highway located on both Michigan's Upper and Lower peninsulas (UP and LP, respectively). Between
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#17327719904453234-539: Is to have the highway route extend from Tamaulipas , Mexico to Ontario , Canada. The planned I-11 will then bridge the Interstate gap between Phoenix, Arizona and Las Vegas, Nevada , and thus form part of the CANAMEX Corridor (along with I-19 , and portions of I-10 and I-15 ) between Sonora , Mexico and Alberta , Canada. Political opposition from residents canceled many freeway projects around
3381-545: The 45th Parallel , the halfway mark between the Equator and the North Pole by latitude. The freeway then traverses the west side of Gaylord and continues through forests in the northern sections of the county. North of Vanderbilt , I-75 enters southern Cheboygan County , assuming the G. Mennen Williams Freeway name. I-75 continues northward through Cheboygan County, passing the community of Indian River and spanning
3528-513: The Ambassador Bridge . Through traffic on I-75 was rerouted along I-94 to I-275 and local detours were posted. The freeway reopened to traffic in June 2009, five months ahead of schedule. The overall project to realign and connect the bridge to the freeways was mired in lawsuits between MDOT and the private company that owns the bridge. The company's owner was jailed for contempt of court during court proceedings in early 2012. MDOT
3675-474: The Dallas–Fort Worth metroplex in Texas, and an I-35W and I-35E that run through Minneapolis and Saint Paul , Minnesota, still exist. Additionally, due to Congressional requirements, three sections of I-69 in southern Texas will be divided into I-69W , I-69E , and I-69C (for Central). AASHTO policy allows dual numbering to provide continuity between major control points. This is referred to as
3822-602: The Detroit Tigers and Detroit Lions professional sports teams, respectively. Immediately east of Ford Field, I-75 turns northwesterly to follow the Chrysler Freeway away from the downtown Detroit area. The transition from the Fisher Freeway involves a set of one-lane ramps through the interchange with the connections to I-375 and M-3 (Gratiot Avenue). Heading north-northwesterly, I-75 passes to
3969-552: The Federal Aid Highway Act of 1956 into law. Under the act, the federal government would pay for 90 percent of the cost of construction of Interstate Highways. Each Interstate Highway was required to be a freeway with at least four lanes and no at-grade crossings. The publication in 1955 of the General Location of National System of Interstate Highways , informally known as the Yellow Book , mapped out what became
4116-630: The Grand Forks area have higher speed limits of 75 mph (120 km/h). As one of the components of the National Highway System , Interstate Highways improve the mobility of military troops to and from airports, seaports, rail terminals, and other military bases. Interstate Highways also connect to other roads that are a part of the Strategic Highway Network , a system of roads identified as critical to
4263-802: The Interstate Highway System , or the Eisenhower Interstate System , is a network of controlled-access highways that forms part of the National Highway System in the United States . The system extends throughout the contiguous United States and has routes in Hawaii , Alaska , and Puerto Rico . In the 20th century, the United States Congress began funding roadways through the Federal Aid Road Act of 1916 , and started an effort to construct
4410-529: The Lincoln Highway , the first road across America. He recalled that, "The old convoy had started me thinking about good two-lane highways... the wisdom of broader ribbons across our land." Eisenhower also gained an appreciation of the Reichsautobahn system, the first "national" implementation of modern Germany's Autobahn network, as a necessary component of a national defense system while he
4557-535: The M-59 interchange, I-75 passes the headquarters for Chrysler . Farther north, by the M-24 interchange, it runs near the former site of The Palace of Auburn Hills . The freeway traverses through additional suburban residential areas as it runs northwesterly away from Pontiac. These subdivisions end north of Clarkston , which is the location of the northern terminus for US 24 . Continuing through Holly and Newark ,
Interstate 75 in Michigan - Misplaced Pages Continue
4704-526: The Saginaw River was opened, along with a section of freeway north to Kawkawlin. In October 1961, the first segment of I-75 near Grayling opened, connecting M-18 with the city. By the end of the year, the freeway was completed between Kinross and Dafter in the UP, and the former segment of US 27 between Grayling and Gaylord was turned back to local control. After this individual segment of freeway
4851-506: The US Department of Defense . The system has also been used to facilitate evacuations in the face of hurricanes and other natural disasters. An option for maximizing traffic throughput on a highway is to reverse the flow of traffic on one side of a divider so that all lanes become outbound lanes. This procedure, known as contraflow lane reversal , has been employed several times for hurricane evacuations. After public outcry regarding
4998-470: The US Highways , which increase from east to west and north to south). This numbering system usually holds true even if the local direction of the route does not match the compass directions. Numbers divisible by five are intended to be major arteries among the primary routes, carrying traffic long distances. Primary north–south Interstates increase in number from I-5 between Canada and Mexico along
5145-557: The United States Census Bureau , the township has a total area of 37.0 square miles (96 km ), of which 37.0 square miles (96 km ) is land and 0.03% is water. As of the census of 2000, there were 10,037 people, 3,975 households, and 2,949 families residing in the township. The population density was 271.3 inhabitants per square mile (104.7/km ). There were 4,111 housing units at an average density of 111.1 per square mile (42.9/km ). The racial makeup of
5292-579: The United States Numbered Highway System : US Highway 2 (US 2), US 10 , US 24 , US 25 , and US 27 . In the 1950s, a Michigan Turnpike was proposed as a tolled , controlled-access highway in the Lower Peninsula. After passage of the Federal Highway Act of 1956 , this turnpike proposal was shelved as a free Interstate Highway was planned. Construction started in 1957, signs went up in 1959, and I-75
5439-683: The West Branch area. The first ice-detection system in the state was installed on the River Rouge bridges in the Detroit area in an attempt to maximize driver safety. The next year, the last section of the Chrysler Freeway in Hazel Park was finished when an interchange for the then-unbuilt I-696 was completed. Another segment of the M-76 freeway was completed at the same time, bypassing Roscommon . The final section between Alger and Roscommon
5586-553: The West Coast to I‑95 between Canada and Miami, Florida along the East Coast . Major west–east arterial Interstates increase in number from I-10 between Santa Monica, California , and Jacksonville, Florida , to I-90 between Seattle, Washington , and Boston, Massachusetts , with two exceptions. There are no I-50 and I-60, as routes with those numbers would likely pass through states that currently have US Highways with
5733-506: The river of the same name . North of town, the freeway traverses the area between Burt and Mullett lakes before intersecting the southern end of M-27 ; that highway provides access to Topinabee and Cheboygan . I-75 continues northward through tree farms and other agricultural properties in rural Cheboygan County. Cheboygan is accessible by way of interchanges for C-64 and C-66 , a pair of county-designated highways in this area. North of C-66, I-75 turns northwesterly. The freeway meets
5880-474: The $ 99.8 million (equivalent to $ 908 million in 2023) cost of the bridge. The structure was designed by David B. Steinman and built by Merritt-Chapman & Scott for the substructure and the American Bridge Company division of U.S. Steel Corporation for the superstructure. Construction started in 1954 and the Mackinac Bridge opened to traffic on November 1, 1957. Final work on
6027-720: The Chrysler Freeway in Detroit started on January 30, 1959. The I-75 signs were first installed along the Detroit–Toledo Expressway in October 1959, replacing US 24A signage in the Monroe area, after the state waited for final approval of the numbering system to be used in the state. In November 1960, sections of freeway opened from Indian River north to the southern Mackinac Bridge approaches in Mackinaw City and from St. Ignace to Evergreen Shores , and by December,
Interstate 75 in Michigan - Misplaced Pages Continue
6174-517: The Chrysler Freeway through Detroit opened on December 19, 1968, and the remainder was scheduled to open on January 10, 1969. In 1970, I-75 through Detroit was completed, and two additional sections of M-76 were converted to freeway. The northern section ran from the US ;27-to-I-75 transition south of Grayling to the Crawford – Roscommon county line, and the second was an extension from Alger to
6321-576: The Congress Hotel in Chicago. In the plan, Mehren proposed a 50,000-mile (80,000 km) system, consisting of five east–west routes and 10 north–south routes. The system would include two percent of all roads and would pass through every state at a cost of $ 25,000 per mile ($ 16,000/km), providing commercial as well as military transport benefits. In 1919, the US Army sent an expedition across
6468-546: The Detroit area is the Detroit–Toledo Expressway. The segment through southern and central Detroit is known as the Fisher Freeway. It was dedicated on September 17, 1970, to the Fisher Brothers, who founded Fisher Body , later a part of General Motors . After the curve in downtown Detroit, I-75 follows the Walter P. Chrysler Freeway northward. That segment is named for Walter P. Chrysler , founder of Chrysler . The name
6615-585: The I-75 Modernization Project, and they opened to traffic on October 24, 2023. In 2018, MDOT began construction on a new pair of overpasses to connect to the Gordie Howe International Bridge . These would replace the existing slip ramp onto Livernois Avenue . The new ramps are expected to opened by the end of 2025. I-75 has six named segments in Michigan. The southernmost section from the state line north to
6762-460: The Interstate Highway System. Assisting in the planning was Charles Erwin Wilson , who was still head of General Motors when President Eisenhower selected him as Secretary of Defense in January 1953. Some sections of highways that became part of the Interstate Highway System actually began construction earlier. Three states have claimed the title of first Interstate Highway. Missouri claims that
6909-493: The Interstate Highway program. The Interstates of Alaska and Puerto Rico are numbered sequentially in order of funding without regard to the rules on odd and even numbers. They also carry the prefixes A and PR , respectively. However, these highways are signed according to their local designations, not their Interstate Highway numbers. Furthermore, these routes were neither planned according to nor constructed to
7056-724: The Ohio state line and Kawkawlin , I-75 contains between a minimum of six and a maximum of ten lanes total; other sections vary between four and six lanes in total. Crossing the state line north of Toledo, Ohio , I-75 enters Michigan in Monroe County carrying the Lake Erie Circle Tour (LECT) near the North Maumee Bay of Lake Erie . The freeway runs parallel to the shoreline of the Great Lake and past
7203-799: The Saginaw area where it connected with the original Mackinaw Trail that ran roughly parallel to, and west of, the contemporary I-75. Another path, the Cheboygan Trail, ran parallel to the contemporary freeway to the east between the West Branch area and Cheboygan. In the UP, an extension of the Mackinac Trail connected St. Ignace and Sault Ste. Marie. In the 19th century, the Michigan Legislature chartered private companies to build and operate plank roads or turnpikes in
7350-627: The Straits of Mackinac. A structure was first proposed in 1888 by one of the directors of the Grand Hotel on Mackinac Island . Car ferry service was started in 1923 to cross the straits, and a bridge authority was first created in 1934 to investigate the possibility of building a permanent connection across the straits. This early authority started with a 1921 proposal for a series of bridges that would have connected Cheboygan to St. Ignace by way of Bois Blanc , Round , and Mackinac islands. The federal Public Works Administration rejected loan and grant requests for that project. A second, direct crossing
7497-416: The Township: The Kawkawlin Post Office opened on March 6, 1868 in Kawkawlin and has been in operation ever since. On January 16, 1897, A post office, Colfax Post Office, opened in the township at Mackinaw Road and Salzburg Road. On May 15, 1900, the Colfax Post Office was closed down for the first time. The Post Office name Colfax was reopened on May 29, 1900 and lasting until May 15, 1901. According to
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#17327719904457644-416: The UAW Freeway and the David Dunbar Buick Freeway. This freeway serves Flint 's downtown areas as I-75 goes to the west side of the city. The fourth auxiliary Interstate is I-675 , a loop into the city of Saginaw that served as an alternate to I-75 when the drawbridge over the Saginaw River was still operating. In addition to the auxiliary Interstates, there are eight current business routes related to
7791-506: The US to determine the difficulties that military vehicles would have on a cross-country trip. Leaving from the Ellipse near the White House on July 7, the Motor Transport Corps convoy needed 62 days to drive 3,200 miles (5,100 km) on the Lincoln Highway to the Presidio of San Francisco along the Golden Gate . The convoy suffered many setbacks and problems on the route, such as poor-quality bridges, broken crankshafts, and engines clogged with desert sand. Dwight Eisenhower , then
7938-631: The United States, including: In addition to cancellations, removals of freeways are planned: The American Association of State Highway and Transportation Officials (AASHTO) has defined a set of standards that all new Interstates must meet unless a waiver from the Federal Highway Administration (FHWA) is obtained. One almost absolute standard is the controlled access nature of the roads. With few exceptions , traffic lights (and cross traffic in general) are limited to toll booths and ramp meters (metered flow control for lane merging during rush hour ). Being freeways , Interstate Highways usually have
8085-413: The act was signed, and paving started September 26, 1956. The state marked its portion of I-70 as the first project in the United States completed under the provisions of the new Federal-Aid Highway Act of 1956. The Pennsylvania Turnpike could also be considered one of the first Interstate Highways, and is nicknamed "Grandfather of the Interstate System". On October 1, 1940, 162 miles (261 km) of
8232-410: The approach to the Mackinac Bridge . The Mackinac Bridge carries I-75 across the Straits of Mackinac that separate Michigan's Upper and Lower peninsulas; the straits also form the connection between Lakes Michigan and Huron. The structure, unlike the rest of the state highways in Michigan like I-75, is under the maintenance and control of the Mackinac Bridge Authority (MBA). The authority collects
8379-412: The area. The freeway passes to the east of downtown Saginaw . I-675 splits off to run westward into downtown, and I-75 curves around to the northwest to cross the Saginaw River on the Zilwaukee Bridge in the suburb of Zilwaukee . North of the river, I-675 reconnects to I-75, which continues northward into Bay County . The freeway passes to the west of Bay City , encountering the interchange marking
8526-499: The bridge was completed in September 1958. Overall, the structure has a 3,800-foot (1,200 m) central suspension span flanked by two 1,800-foot (550 m) side spans. With the two backstay spans, the Mackinac Bridge is 8,614 feet (2,626 m) long between cable anchorages, the longest in the world at the time it opened. The total length of the structure is 26,444 feet (8,060 m) with two 555-foot-tall (169 m) towers and 155 feet (47 m) of clearance for passing ships under
8673-399: The cancellation of the Somerset Freeway . This situation was remedied when the construction of the Pennsylvania Turnpike/Interstate 95 Interchange Project started in 2010 and partially opened on September 22, 2018, which was already enough to fill the gap. However, I-70 remains discontinuous in Pennsylvania , because of the lack of a direct interchange with the Pennsylvania Turnpike at
8820-406: The choice of routing destroyed many well-established neighborhoods, often intentionally as part of a program of " urban renewal ". In the two decades following the 1956 Highway Act, the construction of the freeways displaced one million people, and as a result of the many freeway revolts during this era, several planned Interstates were abandoned or re-routed to avoid urban cores. Construction of
8967-538: The city. In some locations, low speed limits are the result of lawsuits and resident demands; after holding up the completion of I-35E in St. Paul, Minnesota , for nearly 30 years in the courts, residents along the stretch of the freeway from the southern city limit to downtown successfully lobbied for a 45 mph (70 km/h) speed limit in addition to a prohibition on any vehicle weighing more than 9,000 pounds (4,100 kg) gross vehicle weight . I-93 in Franconia Notch State Park in northern New Hampshire has
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#17327719904459114-401: The collection of tolls, some Interstate routes are toll roads , either because they were grandfathered into the system or because subsequent legislation has allowed for tolling of Interstates in some cases. As of 2022 , about one quarter of all vehicle miles driven in the country used the Interstate Highway System, which has a total length of 48,890 miles (78,680 km). In 2022 and 2023,
9261-467: The community of Luna Pier . Further north, I-75 passes to the southeast of Monroe and crosses the River Raisin between the city and the river mouth. North of the river, the freeway turns further inland running through farmland. Near Newport , I-275 splits off to the northwest and I-75 continues its northeastward trek through Monroe County. When it crosses the Huron River , the trunkline enters Wayne County between South Rockwood and Rockwood . On
9408-431: The construction and improvement of highways. The nation's revenue needs associated with World War I prevented any significant implementation of this policy, which expired in 1921. In December 1918, E. J. Mehren, a civil engineer and the editor of Engineering News-Record , presented his "A Suggested National Highway Policy and Plan" during a gathering of the State Highway Officials and Highway Industries Association at
9555-407: The contiguous United States, primary Interstates—also called main line Interstates or two-digit Interstates—are assigned numbers less than 100. While numerous exceptions do exist, there is a general scheme for numbering Interstates. Primary Interstates are assigned one- or two-digit numbers, while shorter routes (such as spurs, loops, and short connecting roads) are assigned three-digit numbers where
9702-567: The discontinuity, but they have been blocked by local opposition, fearing a loss of business. The Interstate Highway System has been expanded numerous times. The expansions have both created new designations and extended existing designations. For example, I-49 , added to the system in the 1980s as a freeway in Louisiana , was designated as an expansion corridor, and FHWA approved the expanded route north from Lafayette, Louisiana , to Kansas City, Missouri . The freeway exists today as separate completed segments, with segments under construction or in
9849-448: The dissemination of public information. As a result, the 2005 evacuation of New Orleans, Louisiana, prior to Hurricane Katrina ran much more smoothly. According to urban legend , early regulations required that one out of every five miles of the Interstate Highway System must be built straight and flat, so as to be usable by aircraft during times of war. There is no evidence of this rule being included in any Interstate legislation. It
9996-406: The early part of the century. The State Trunkline Highway System was formed on May 13, 1913, and several sections of the system were designated along the course of the then-future I-75. Division 1 connected the Ohio state line northeasterly to Detroit, and Division 2 connected Detroit with Mackinaw City. A branch of Division 7 ran north from St. Ignace to Sault Ste. Marie. The system
10143-415: The east of Grayling . There are a pair of interchanges on either end of town for BL I-75 , and the southern one is a partial interchange ; only northbound I-75 traffic may access the business loop and traffic entering the freeway may only access southbound I-75. There is no interchange further north for M-72 ; access to that highway is provided through the business loop. On the north side of Grayling, there
10290-463: The east of the campus of Wayne State University and through an interchange with I-94 (Edsel Ford Freeway). The Chrysler Freeway passes to the west of Hamtramck and to the east of Highland Park , enclaves within Detroit. I-75 meets M-8 (Davison Freeway) and continues through residential areas of Detroit's northern side. North of M-102 (8 Mile Road), the freeway crosses out of Detroit and into Oakland County . The Chrysler Freeway jogs through
10437-409: The eastern end of US 10 and the western end of M-25 . From there, I-75/US 23 curves northwesterly to bypass Kawkawlin before continuing north to the Standish area through farmlands inland from the Saginaw Bay . West of Standish, US 23 splits to follow the Lake Huron shoreline, and I-75 turns northwesterly to run inland. West of Sterling , the landscape changes again; in this area
10584-496: The eastern end of the concurrency near Breezewood . Traveling in either direction, I-70 traffic must exit the freeway and use a short stretch of US 30 (which includes a number of roadside services) to rejoin I-70. The interchange was not originally built because of a legacy federal funding rule, since relaxed, which restricted the use of federal funds to improve roads financed with tolls. Solutions have been proposed to eliminate
10731-450: The economy. Not just as a public works measure, but for future growth. Clay's committee proposed a 10-year, $ 100 billion program ($ 1.13 trillion in 2023), which would build 40,000 miles (64,000 km) of divided highways linking all American cities with a population of greater than 50,000. Eisenhower initially preferred a system consisting of toll roads , but Clay convinced Eisenhower that toll roads were not feasible outside of
10878-555: The existing, largely non-freeway, United States Numbered Highways system. By the late 1930s, planning had expanded to a system of new superhighways. In 1938, President Franklin D. Roosevelt gave Thomas MacDonald , chief at the Bureau of Public Roads, a hand-drawn map of the United States marked with eight superhighway corridors for study. In 1939, Bureau of Public Roads Division of Information chief Herbert S. Fairbank wrote
11025-426: The federal government, Interstate Highways are owned by the state in which they were built. With few exceptions , all Interstates must meet specific standards , such as having controlled access, physical barriers or median strips between lanes of oncoming traffic, breakdown lanes , avoiding at-grade intersections , no traffic lights , and complying with federal traffic sign specifications. Interstate Highways use
11172-515: The first three contracts under the new program were signed in Missouri on August 2, 1956. The first contract signed was for upgrading a section of US Route 66 to what is now designated Interstate 44 . On August 13, 1956, work began on US 40 (now I-70) in St. Charles County. Kansas claims that it was the first to start paving after the act was signed. Preliminary construction had taken place before
11319-614: The first time sought to target these funds to the construction of a national road grid of interconnected "primary highways", setting up cooperation among the various state highway planning boards. The Bureau of Public Roads asked the Army to provide a list of roads that it considered necessary for national defense. In 1922, General John J. Pershing , former head of the American Expeditionary Force in Europe during
11466-645: The former Kincheloe Air Force Base in Kinross and Kincheloe . North of there in Dafter , the freeway intersects M-28 (9 Mile Road). Beyond that interchange, I-75 picks up the Lake Superior Circle Tour (LSCT) designation, which it carries the rest of the way north. On the south side of Sault Ste. Marie , the freeway meets BS I-75 and picks up the LHCT designation one more time. I-75 rounds
11613-460: The former routing was given the M-121 designation. By 1945, a divided highway designated Alternate US 24 (US 24A) was opened from the state line north to Erie . After World War II, the MSHD planned to convert several highways in the state to freeways. In planning maps from 1947, the contemporary I-75 corridor was included in the system that later became the Interstate Highway System . It
11760-683: The freeway continues northeasterly, traversing the Eastern Unit of the Hiawatha National Forest . I-75 crosses the Pine River before entering Chippewa County. The freeway takes a more northerly track as it travels under M-48 without an interchange. Farther north, M-48 curves around to connect I-75 with Rudyard , and the freeway turns back to continue northeastward. About five miles (8.0 km) northeast of Rudyard, I-75 passes next to Chippewa County International Airport ,
11907-410: The freeway enters forest lands. I-75 continues northwestward through Arenac County and crosses into western Ogemaw County . M-30 passes under the freeway without an interchange as I-75 rounds the west side of West Branch . On the northwest side of that city, M-55 merges onto I-75, and the two highways turn to run concurrently westward into Roscommon County . East of Prudenville , M-55 splits from
12054-660: The freeway in 1976. The designation was formally repealed in 2001. Two other segments near the Straits of Mackinac were named in 1976 for figures instrumental in the construction of the Mackinac Bridge. From the Cheboygan–Otsego county line north to the bridge, I-75 was named for G. Mennen Williams , the former governor once called "Michigan's Politician of the Century" in the press. The section in Mackinac County from
12201-554: The freeway in the state. These business loops and spurs provide signed connections into the downtowns of Pontiac , Bay City , West Branch , Roscommon , Grayling , Gaylord , St. Ignace , and Sault Ste. Marie . A ninth highway was previously designated in Saginaw as well. A 10th business route has been proposed for Indian River . Interstate Highway System [REDACTED] The Dwight D. Eisenhower National System of Interstate and Defense Highways , commonly known as
12348-580: The freeway transitions back to a rural, wooded setting and enters Genesee County . As I-75 approaches Grand Blanc , the landscape changes back to suburbs. I-475 (UAW Freeway) splits off to the north to bypass the east side of Flint , and then I-75 merges with US 23 . The combined I-75/US 23 turns northerly to round the west side of the city. I-75/US 23 meets I-69 near the Bishop International Airport southwest of downtown Flint. The freeway continues northward along
12495-420: The freeway. I-75 turns northward to curve around the east of Houghton and Higgins lakes. Turning back to the northwest, the trunkline bypasses Roscommon to the south and transfers into southern Crawford County . About five miles (8.0 km) north of the county line, I-75 meets the northern end of US 127 , the former US 27 . After the US 127 interchange, I-75 turns northward, and passes to
12642-556: The highest speed limits in a given area. Speed limits are determined by individual states. From 1975 to 1986, the maximum speed limit on any highway in the United States was 55 miles per hour (90 km/h), in accordance with federal law. Typically, lower limits are established in Northeastern and coastal states, while higher speed limits are established in inland states west of the Mississippi River . For example,
12789-553: The highly populated coastal regions. In February 1955, Eisenhower forwarded Clay's proposal to Congress. The bill quickly won approval in the Senate, but House Democrats objected to the use of public bonds as the means to finance construction. Eisenhower and the House Democrats agreed to instead finance the system through the Highway Trust Fund , which itself would be funded by a gasoline tax. In June 1956, Eisenhower signed
12936-617: The highway now designated I‑70 and I‑76 opened between Irwin and Carlisle . The Commonwealth of Pennsylvania refers to the turnpike as the Granddaddy of the Pikes, a reference to turnpikes . Milestones in the construction of the Interstate Highway System include: The initial cost estimate for the system was $ 25 billion over 12 years; it ended up costing $ 114 billion (equivalent to $ 425 billion in 2006 or $ 618 billion in 2023 ) and took 35 years. The system
13083-459: The inefficiency of evacuating from southern Louisiana prior to Hurricane Georges ' landfall in September 1998, government officials looked towards contraflow to improve evacuation times. In Savannah, Georgia , and Charleston, South Carolina , in 1999, lanes of I-16 and I-26 were used in a contraflow configuration in anticipation of Hurricane Floyd with mixed results. In 2004, contraflow
13230-562: The international border formed a bridge authority to build a highway bridge in 1935. Construction started on the structure September 16, 1960. The International Bridge is nearly three miles (4.8 km) long, encompassing spans over the American and Canadian navigation channels for the Soo Locks and the St. Marys River . The American approach is 2,471 feet (753 m), and the Canadian approach
13377-431: The last two digits match the parent route (thus, I-294 is a loop that connects at both ends to I-94 , while I-787 is a short spur route attached to I-87 ). In the numbering scheme for the primary routes, east–west highways are assigned even numbers and north–south highways are assigned odd numbers. Odd route numbers increase from west to east, and even-numbered routes increase from south to north (to avoid confusion with
13524-749: The main span. In 2000, the bridge was named "Michigan's No. 1 Civil Engineering Project of the 20th Century" by the Michigan Section of the American Society of Civil Engineers (ASCE), and the structure was named a National Historic Civil Engineering Landmark in 2010 by the national ASCE. The northernmost of the three monumental bridges along I-75 is the International Bridge, linking the twin cities of Sault Ste. Marie in Michigan and Ontario . The governments on each side of
13671-454: The mainline. Some auxiliary highways do not follow these guidelines, however. The Interstate Highway System also extends to Alaska , Hawaii , and Puerto Rico , even though they have no direct land connections to any other states or territories. However, their residents still pay federal fuel and tire taxes. The Interstates in Hawaii, all located on the most populous island of Oahu , carry
13818-753: The maximum speed limit is 75 mph (120 km/h) in northern Maine, varies between 50 and 70 mph (80 and 115 km/h) from southern Maine to New Jersey, and is 50 mph (80 km/h) in New York City and the District of Columbia. Currently, rural speed limits elsewhere generally range from 65 to 80 miles per hour (105 to 130 km/h). Several portions of various highways such as I-10 and I-20 in rural western Texas, I-80 in Nevada between Fernley and Winnemucca (except around Lovelock) and portions of I-15 , I-70 , I-80 , and I-84 in Utah have
13965-625: The necessary bonds to pay for construction. When the federal government approved the Federal Aid Highway Act of 1956 , Ziegler and the MSHD announced plans for a full freeway to run north through the Lower Peninsula and continue across to the Upper Peninsula. This announcement undermined the efforts to build the Michigan Turnpike. By August 1956, the MTA voted to reduce its operations to a skeleton staff, but moved forward in May 1957 on
14112-674: The north side of the county line, I-75 begins to run inland of, and parallel to, the Detroit River , entering the Downriver area. The freeway turns northerly after the interchange with M-85 (Fort Street) near Gibraltar , and the LECT departs I-75 to follow M-85 north of the interchange. The landscape transitions to suburban residential areas instead of farmland through this area. The freeway turns back northeasterly in Taylor and intersects
14259-580: The northern end of US 31 and picks up the Lake Michigan Circle Tour (LMCT) designation before entering Emmet County on the south side of Mackinaw City . I-75 then parallels the county line on the west side of the village, meeting the northern end of US 23. After that interchange, the Lake Huron Circle Tour (LHCT) merges in from the south. There is one more interchange along the freeway before I-75 ascends
14406-619: The northern end of the Mackinac Bridge was named for Prentiss M. Brown , the former Congressman and Senator who served on the MBA board until his death in 1971. Along its route in the state, I-75 utilizes three of Michigan's monumental bridges. The first of them is the Zilwaukee Bridge near Saginaw. The original bridge across the Saginaw River at Zilwaukee was built in 1960 as a bascule bridge to allow shipping traffic to use
14553-551: The northern end of the business loop near Castle Rock ; the LHCT returns to I-75 at that interchange as well. Continuing northward, M-123 (Tahquamenon Trail) intersects from the west as the freeway parallels H-63 (Mackinac Trail), the former route of US 2. I-75 crosses the Carp River and follows the shores of St. Martin Bay before meeting M-134 . At that interchange, the LHCT departs again to run eastward. Through this area,
14700-404: The number of fatalities on the Interstate Highway System amounted to more than 5,000 people annually, with nearly 5,600 fatalities in 2022. The United States government's efforts to construct a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916 , which provided $ 75 million over a five-year period for matching funds to the states for
14847-456: The official Interstate Highway standards . On one- or two-digit Interstates, the mile marker numbering almost always begins at the southern or western state line. If an Interstate originates within a state, the numbering begins from the location where the road begins in the south or west. As with all guidelines for Interstate routes, however, numerous exceptions exist. Kawkawlin, Michigan There are two unincorporated communities within
14994-654: The old Mackinac Trail. When the United States Numbered Highway System was formed on November 11, 1926, most of these highways were redesignated as part of the national system. From the state line northward, M-10 was included as a part of US 24 and US 25 . At Detroit, M-10 was used as a part of US 10 . North of Grayling, M-14 was redesignated as a part of US 27 . M-12 was used for US 2 . The Michigan State Highway Department (MSHD) rerouted US 2 in 1933 between Rogers Park and Sault Ste. Marie. The new routing followed Mackinac Trail instead of turning east to Cedarville and north to Sault Ste. Marie;
15141-561: The original Interstate Highway System was proclaimed complete in 1992, despite deviations from the original 1956 plan and several stretches that did not fully conform with federal standards . The construction of the Interstate Highway System cost approximately $ 114 billion (equivalent to $ 618 billion in 2023). The system has continued to expand and grow as additional federal funding has provided for new routes to be added, and many future Interstate Highways are currently either being planned or under construction. Though heavily funded by
15288-520: The original bascule Zilwaukee Bridge across the Saginaw River was replaced by a much higher structure slightly north of the former bridge. Beginning on February 25, 2008, I-75 closed completely to traffic in both directions from Rosa Parks Boulevard (exit 49) to Clark Street (exit 47) in Detroit. This facilitated the complete rebuilding of the road as part of the Ambassador Gateway Project to better connect I-75 and I-96 to
15435-404: The other. The structure was originally supposed to cost $ 76.8 million with a 1983 completion date; in the end it cost $ 131.3 million (equivalent to $ 338 million in 2023) when the southbound span finally opened on September 19, 1988. The structure is the largest concrete segmental bridge in the United States. The second is the Mackinac Bridge that connects Michigan's two peninsulas at
15582-656: The planning phase between them. In 1966, the FHWA designated the entire Interstate Highway System as part of the larger Pan-American Highway System, and at least two proposed Interstate expansions were initiated to help trade with Canada and Mexico spurred by the North American Free Trade Agreement (NAFTA). Long-term plans for I-69 , which currently exists in several separate completed segments (the largest of which are in Indiana and Texas ),
15729-411: The prefix H . There are three one-digit routes in the state ( H-1 , H-2 , and H-3 ) and one auxiliary route ( H-201 ). These Interstates connect several military and naval bases together, as well as the important communities spread across Oahu, and especially within the urban core of Honolulu . Both Alaska and Puerto Rico also have public highways that receive 90 percent of their funding from
15876-503: The river and intersects the eastern end of I-96 before turning again to follow the river further inland. From there, I-75 meets M-10 (Lodge Freeway) and M-5 (Grand River Avenue). East of Grand River, I-75 travels past Little Caesars Arena , home of the Detroit Red Wings and Detroit Pistons , and passes under M-1 (Woodward Avenue). East of Woodward, the freeway travels past both Comerica Park and Ford Field , homes of
16023-593: The river. Opening the drawbridge would back traffic up on I-75/US 10/US 23 for upwards of four hours on holiday weekends. Approved in 1974, construction on the replacement bridge started in October 1979. A major construction accident in August 1982 delayed completion of the new Zilwaukee Bridge; a bridge pier partially collapsed when contractors overloaded a section under construction. The affected 300-foot (91 m) deck segment tilted to rest three feet (0.91 m) higher on one end and five feet (1.5 m) lower on
16170-537: The route, without regard to the route number. For instance, I-190 in Massachusetts is labeled north–south, while I-195 in New Jersey is labeled east–west. Some looped Interstate routes use inner–outer directions instead of compass directions, when the use of compass directions would create ambiguity. Due to the large number of these routes, auxiliary route numbers may be repeated in different states along
16317-419: The same numbers, which is generally disallowed under highway administration guidelines. Several two-digit numbers are shared between unconnected road segments at opposite ends of the country for various reasons. Some such highways are incomplete Interstates (such as I-69 and I-74 ) and some just happen to share route designations (such as I-76 , I-84 , I‑86 , I-87 , and I-88 ). Some of these were due to
16464-503: The same roadway are signed as traveling in opposite directions; one such wrong-way concurrency is found between Wytheville and Fort Chiswell , Virginia, where I‑81 north and I‑77 south are equivalent (with that section of road traveling almost due east), as are I‑81 south and I‑77 north. Auxiliary Interstate Highways are circumferential, radial, or spur highways that principally serve urban areas . These types of Interstate Highways are given three-digit route numbers, which consist of
16611-569: The same toll rate is assessed in US dollars and Canadian dollars . Motorists have the option to pay with cash or an IQ Card, an electronic toll collection debit card that uses radio-frequency identification technology. Before Michigan became a state, the first land transportation corridors were the Indian trails. The French-Indian Trail ran through southeastern Michigan between Toledo , Monroe and Detroit. The Saginaw Trail ran north from Detroit to
16758-466: The section between Gaylord and Vanderbilt was completed. On October 25, the section of freeway from M-24 near Pontiac to the Flint area opened. Also late in the year, the freeway gap was filled in between Vanderbilt and Indian River. The International Bridge and its approaches opened in Sault Ste. Marie on October 31, 1962. The following year, a set of segments opened in the Detroit area. The freeway
16905-410: The section of freeway running between Evergreen Shores and M-123 was scheduled to open. In 1961, the MSHD had proposed that the section of I-75 south of Detroit to Toledo be built as an electronic highway under a bid through General Motors ; the testing for such a roadway was ultimately done at Ohio State University instead. That same year the original Zilwaukee Bridge , a bascule bridge across
17052-433: The service have a fear of bridges . Because the bridge normally only allows motor vehicles, bicyclists and snowmobiles shuttled across are subject to fees. The authority maintains a small police department to patrol the bridge and escort vehicles across, and a pair of radio station transmitters that broadcast bridge conditions and travel information on AM 530 and AM 1610. North of the Mackinac Bridge, I-75 passes to
17199-648: The southern end of M-39 (Southfield Highway) in Lincoln Park . I-75 crosses the Ecorse River and passes through an industrial area of Metro Detroit. Farther north, the freeway spans the River Rouge in the southern part of Detroit. I-75 parallels M-85 (Fort Street) and follows the Detroit River as far east as the Ambassador Bridge . Near the bridge's approaches, the freeway turns 90° away from
17346-491: The southern section near the Ohio state line opened in October 1957. The Mackinac Bridge was opened to traffic on November 1, 1957; a new section of freeway and an interchange connected US 2 to the bridge on the northern end, and to US 27 and US 31 on the southern end. The MSHD formally proposed the I-75 number in 1958. On June 30 of that year, the first stretch of the "Fenton–Clio Expressway" opened. Construction on
17493-437: The state, many of which replaced the original Indian trails. These roads were originally made of oak planks, but later legislation permitted gravel as well. By the first decade of the 20th century, only 23 of the 202 chartered turnpikes were still in operation; many companies that received a charter never built their specified roadways. The remaining plank roads were turned over to the state or purchased by railway companies in
17640-494: The suburb of Hazel Park , site of the "worst freeway for accidents in Metro Detroit" at a curve near 9 Mile Road. Further north, I-75 intersects I-696 near 10 Mile Road. The freeway continues northward for about six miles (9.7 km) into Troy , where it turns westward. The route for I-75 zig-zags through Troy and Auburn Hills as the freeway alternates from north–south to east–west to bypass Pontiac . Near
17787-546: The township was 97.83% White , 0.22% African American , 0.21% Native American , 0.37% Asian , 0.50% from other races , and 0.88% from two or more races. Hispanic or Latino of any race were 1.68% of the population. There were 3,975 households, out of which 27.7% had children under the age of 18 living with them, 64.9% were married couples living together, 6.7% had a female householder with no husband present, and 25.8% were non-families. 22.9% of all households were made up of individuals, and 10.9% had someone living alone who
17934-406: The turnpike 40 to 50 percent" according to consultants. Trucking interests in the state also opposed the projects, preferring a moderate gas tax increase over any tolls. Detroit denied the MTA permission to route a turnpike through the city over issues related to the River Rouge, Rouge Park and access across the right-of-way . After a lawsuit by City of Dearborn, the legislation creating the authority
18081-435: The turnpike were Bridgeport and Rockwood . The state highway commissioner at the time, Charles Ziegler , distrusted a separate agency dealing with statewide road building at the time, and he worked to stall progress on any proposed turnpikes. Ziegler, who had a seat on the MTA board, publicly sparred with authority chairman George Higgins, even announcing that the MSHD would build a parallel freeway that would "reduce tolls on
18228-421: The urban core of Detroit. The freeway also uses three of the state's monumental bridges to cross major bodies of water. There are four auxiliary Interstates in the state related to I-75, as well as nine current or former business routes , with either Business Loop I-75 (BL I-75) or Business Spur I-75 (BS I-75) designations. The freeway bears several names in addition to the I-75 designation. The southern segment
18375-495: The war, complied by submitting a detailed network of 20,000 miles (32,000 km) of interconnected primary highways—the so-called Pershing Map . A boom in road construction followed throughout the decade of the 1920s, with such projects as the New York parkway system constructed as part of a new national highway system. As automobile traffic increased, planners saw a need for such an interconnected national system to supplement
18522-643: The west of downtown St. Ignace , traveling between the Father Marquette National Memorial and Straits State Park . There is an interchange north of the toll plaza that marks the eastern end of US 2 in the state and the southern end of BL I-75 . The LMCT departs I-75 to follow US 2 while the LHCT follows BL I-75 through town. The freeway curves around Chain Lake and the Mackinac County Airport and meets
18669-577: The west side of the city, passes the Sault Ste. Marie Municipal Airport and the campus of Lake Superior State University before meeting the customs and toll plazas for the International Bridge . From there, I-75 crosses the two-lane bridge and terminates at the Canadian border . As of April 1, 2012, the toll rates on the bridge are $ 3 for passenger vehicles, $ 2.10 for commuters, and $ 4 per axle for commercial vehicles; currently
18816-406: The western residential neighborhoods, encountering the northern end of I-475 near Mount Morris . I-75 passes to the west of Clio and the east of Birch Run , the latter home to a large outlet mall . From there, the trunkline travels through farmland in southern Saginaw County . I-75/US 23 enters the southern reaches of the suburban Tri-Cities at Bridgeport and proceeds northward through
18963-455: Was 65 years of age or older. The average household size was 2.47 and the average family size was 2.91. In the township the population was spread out, with 21.3% under the age of 18, 6.8% from 18 to 24, 24.5% from 25 to 44, 28.0% from 45 to 64, and 19.2% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 91.4 males. For every 100 females age 18 and over, there were 88.1 males. The median income for
19110-433: Was also included in the General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955 that was released in 1955 as the federal government readied plans for the freeway system. The Michigan Turnpike Authority (MTA), an agency which was created in 1951, proposed the construction of a toll freeway to run north–south in the state. The original termini for
19257-648: Was called the Detroit–Toledo Expressway during planning in the 1950s and 1960s. Through Detroit, I-75 is the Fisher Freeway or the Walter P. Chrysler Freeway , named for pioneers in the auto industry. Sections on either side of the Mackinac Bridge are the G. Mennen Williams Freeway or the Prentiss M. Brown Freeway , named for politicians who helped get the bridge built. Officially, the entire length
19404-637: Was chosen by the Detroit Common Council on November 6, 1957, and codified in state law in 1990; the state definition for the name places the northern end of the designation at the Oakland–Genesee county line. Officially, the entire length of I-75 in Michigan is the American Legion Memorial Highway. As a practical matter, this name is not used on the southernmost segments of the Interstate. The American Legion
19551-581: Was completed in 1973. Since completion, the freeway has been upgraded with the construction of the Zilwaukee Bridge near Saginaw and improved connections to the Ambassador Bridge in Detroit. Known as "Michigan's Main Street", I-75 is listed on the National Highway System (NHS) for its entire length; the NHS is a network of roadways important to the country's economy, defense, and mobility. The freeway
19698-485: Was completed, it left a gap between Gaylord and Indian River that was designated "To I-75" on maps for the former segment of US 27, and US 27 was truncated to about five miles (8.0 km) south of Grayling. The 12-mile (19 km) section of I-75 was opened between Gaylord and Waters in July 1962. Another temporary To I-75 designation was applied along US 10 and US 27 from Bay City to Grayling. In August,
19845-551: Was employed ahead of Hurricane Charley in the Tampa, Florida area and on the Gulf Coast before the landfall of Hurricane Ivan ; however, evacuation times there were no better than previous evacuation operations. Engineers began to apply lessons learned from the analysis of prior contraflow operations, including limiting exits, removing troopers (to keep traffic flowing instead of having drivers stop for directions), and improving
19992-560: Was extended south from Pontiac to 11 Mile Road with a connection along M-150 to M-102 (8 Mile Road). Another section opened to connect with US 24 (Telegraph Road) in the Woodhaven area; a To I-75 designation was added to connect along US 24 and M-102 to M-150. On the other end of the state, the gaps in the freeway across the UP were completed in 1963 as well, and the section of freeway in Northern Michigan
20139-548: Was honored with the designation in 1969 in a state law that required private interests to finance the signage. Public Act 174 of 1984 redesignated I-75 in honor of the group and placed responsibility for signage in MDOT's hands. Another name that was applied to all of I-75 was the Michigan Bicentennial Freedom Way. Designated by Senate Concurrent Resolution 216 of 1975, the name only applied to
20286-404: Was increased by December 1955; the extended Michigan Turnpike would have run from a connection across the Ohio state line to Toledo north through Detroit and Saginaw and eventually to the southern end of the Mackinac Bridge. By the following April, any extensions were cancelled leaving the turnpike to its original termini; the east–west companion road was also cancelled at that time. The MTA proposed
20433-1134: Was later ordered to assume responsibility for construction, and the department completed the project on September 21, 2012. All of I-75 within Michigan was named the Tuskegee Airmen Memorial Highway, in honor of the Tuskegee Airmen , at the end of December 2014. In May 2017, MDOT raised the speed limit on I-75 between Bay City and Sault Ste. Marie, excluding the Mackinac Bridge, from 70 to 75 miles per hour (113 to 121 km/h). A segment of I-75 in Oakland County between 12 Mile Road in Madison Heights and South Boulevard in Bloomfield Township had high-occupancy vehicle lanes (HOV lanes) added in both directions. One lane of I-75 in both directions will be restricted to HOV traffic from 6 a.m. to 9 a.m. and from 3 p.m. to 6 p.m. The HOV lanes are part of
20580-422: Was named the most scenic new highway in the US in 1963 by Parade magazine. The first part of the Chrysler Freeway opened to traffic on June 26, 1964, the southern mile (1.6 km) of which was designated I-375 . The segment of I-75 through the Downriver suburbs of Detroit between the US 24 (Telegraph Road) connector and M-39 (Southfield Highway) was completed on December 28, 1966. The same year, I-75
20727-492: Was opened on November 1, 1973, in a dedication by Governor William G. Milliken . Since the freeway was completed in 1973, a few changes have been made to I-75 in Michigan. From 1973 to 1975, I-75 was widened from four to six lanes from south of Flint to north of Bay City. MDOT truncated US 2 to end in St. Ignace by removing it from the I-75 freeway in 1983. In 1986, US 10 was truncated to Bay City, removing its concurrency with I-75 from there to Clarkston . In 1988,
20874-422: Was proclaimed complete in 1992, but two of the original Interstates— I-95 and I-70 —were not continuous: both of these discontinuities were due to local opposition, which blocked efforts to build the necessary connections to fully complete the system. I-95 was made a continuous freeway in 2018, and thus I-70 remains the only original Interstate with a discontinuity. I-95 was discontinuous in New Jersey because of
21021-456: Was scheduled to open southward from 11 Mile Road to M-102 (8 Mile Road). In 1967, two segments of freeway opened. One was from Kawkawlin to Standish in October, and the other through Detroit extended I-75 along the Fisher Freeway in December. The first section of M-76 freeway from Standish northwesterly to Alger was scheduled to open in July 1968. A one-mile (1.6 km) section of
21168-494: Was serving as Supreme Commander of Allied Forces in Europe during World War II . In 1954, Eisenhower appointed General Lucius D. Clay to head a committee charged with proposing an interstate highway system plan. Summing up motivations for the construction of such a system, Clay stated, It was evident we needed better highways. We needed them for safety, to accommodate more automobiles. We needed them for defense purposes, if that should ever be necessary. And we needed them for
21315-399: Was signposted in 1919, and those highways were marked on maps for the first time. The first M-10 was designated along the highways from Ohio through Detroit to Standish. M-76 connected Standish with Grayling, where the first M-14 ran northward to Cheboygan. From there, M-10 connected to Mackinaw City. In the UP, M-12 connected St. Ignace with Sault Ste. Marie along a route to the east of
21462-500: Was then proposed based on designs used for the Tacoma Narrows Bridge . The collapse of that bridge and World War II delayed any further work on a structure beyond tests of the lake bottom and the construction of the 4,200-foot-long (1,300 m) causeway on the St. Ignace side; the first bridge authority was abolished in 1947. The current agency was created on June 6, 1950. The MBA was authorized in 1952 to sell bonds to finance construction, which were sold on December 17, 1953, to finance
21609-409: Was upheld by the Michigan Supreme Court in 1955, and the authority was allowed to sell bonds for its Bridgeport–Rockwood and Detroit–Chicago toll roads. The original planning maps plotted the first turnpike to the west of Detroit, running near US 24 (Telegraph Road). This route was later proposed for I-75 itself; I-275 would have been the freeway to loop into downtown Detroit. The proposed length
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