99-786: Interstate 71 ( I-71 ) is a north–south Interstate Highway in the midwestern and southeastern regions of the United States. Its southern terminus is at an interchange with I-64 and I-65 (the Kennedy Interchange ) in Louisville, Kentucky , and its northern terminus at an interchange with I-90 in Cleveland, Ohio . I-71 runs concurrently with I-75 from a point about 20 miles (32 km) south of Cincinnati, Ohio , into Downtown Cincinnati . While most odd numbered Interstates run north–south, I-71 takes more of
198-535: 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
297-651: 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
396-476: 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
495-487: A four-lane freeway as it passes through Hilliard and Dublin. The northwestern "corner" of I-270 has an interchange with US 33 / State Route 161 (SR 161). It then makes a sharp right as it heads toward Worthington. In Worthington are the notoriously congested interchanges of three major roadways, SR 315 , US 23 , and I-71. This is the location of the North Side Mega-Fix, which fixed
594-595: 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
693-537: A northeast–southwest course, with some east–west sections, and is mainly a regional route serving Kentucky and Ohio . It links I-80 and I-90 to I-70 and ultimately (via I-65) links to I-40 . Major metropolitan areas served by I-71 include Louisville , Cincinnati , Columbus , and Cleveland . Approximately three-quarters of the route lie east of I-75, leaving I-71 out of place in the Interstate grid. In Kentucky , I-71 begins east of Downtown Louisville at
792-589: 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
891-512: A point of origin or destination inside of I-270 to bypass the city using I-270 and not use any roadway located inside of the outerbelt. The code's text cites the dense population of the Columbus area, and local law firms note that police frequently pull over trucks with HazMat placards to check the trucker's papers. Transporting HazMats within I-270 without proper documentation are a misdemeanor of
990-491: 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,
1089-559: 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
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#17327983437751188-483: A retrial, McCoy accepted a plea arrangement where he avoided the death sentence. He was sentenced to 28 years in prison on August 9, 2005. On January 23, 2017, a gas tanker carrying 8,000 US gallons (6,700 imp gal; 30,000 L) of gasoline tipped over while exiting from US 33/SR 161 onto I-270 west in Dublin. A massive fire resulted from the crash, as well as multiple small grass fires caused by
1287-548: A rural bypass of Columbus, many parts of it, primarily the northern section, have become more traveled and more congested over the years, making it less popular as a bypass and more widely regarded as a "suburb connector". I-270 starts at I-71 on the southern side, marked as exit 55, and forms a combination interchange . It then makes its way clockwise around the city with three lanes, intersecting U.S. Route 62 (US 62), Georgesville Road, and US 40 before its next major interchange, with I-70 . Here, it becomes
1386-409: 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
1485-801: 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
1584-460: 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
1683-546: A spur from southeast of the city. I-71 then heads in a general northeast direction through the Lytle Tunnel and urban Cincinnati and into its surrounding suburbs. After another interchange with the I-275 beltway, the freeway leaves the metropolitan area and heads toward Columbus . It continues northeast until it reaches South Lebanon , where it begins cutting east across the flat plains of southwest Ohio. The freeway crosses
1782-474: 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
1881-401: Is a partial cloverleaf interchange with Hamilton Road, and after the turns is an interchange with SR 16 . The freeway then divides from four lanes into two express lanes and three local lanes. This configuration continues up until the interchange with I-70. This interchange is planned to be entirely reconstructed to construct two flyover ramps, as well as unweave and widen I-70, as part of
1980-543: 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
2079-617: Is an auxiliary interstate highway that forms a beltway loop freeway in the Columbus metropolitan area in the US state of Ohio , commonly known locally as The Outerbelt or the Jack Nicklaus Freeway . The zero-milepost is at the junction with Interstate 71 east of Grove City , intersecting with I-71 again near Worthington as well as connecting with Interstate 70 twice with the western junction near Lincoln Village and
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#17327983437752178-480: 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
2277-633: Is where the freeway goes through Easton , a popular shopping destination. Once the freeway has gone through Easton, the local–express lanes merge right before the interchange of I-670 , creating a weaving section. This weave is currently being fixed in the Northbound direction as part of the I-670 Smartlane Project. After intersecting I-670, the freeway makes a hard turn left and then right to avoid both John Glenn Columbus International Airport and Gahanna . In between these two turns
2376-547: The Cincinnati metropolitan area . I-471 links Downtown Cincinnati with I-275 . I-271 provides access to Cleveland's eastern suburbs and enables travelers on I-71 to access I-90 east without going through Cleveland proper. Interstate Highway [REDACTED] The Dwight D. Eisenhower National System of Interstate and Defense Highways , commonly known as the Interstate Highway System , or
2475-474: 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
2574-841: 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
2673-552: 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
2772-555: 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
2871-540: The Kennedy Interchange , where it meets I-64 and I-65. This interchange is sometimes called the " Spaghetti Junction ". From Louisville, it roughly follows the Ohio River in a diagonal path toward Northern Kentucky. Between Louisville and Cincinnati, I-71 is largely a four-lane highway, except for the approach to Kentucky Speedway in Sparta in which it runs three lanes each way for about two miles (3.2 km). Near
2970-529: 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
3069-661: The Little Miami River on the Jeremiah Morrow Bridge , which is a continuous truss bridge and the tallest bridge in Ohio, at 239 feet (73 m) above the river. I-71 heads toward Columbus then intersects with the bypass I-270 before heading north into urban Columbus, where it junctions I-70 . About a mile (1.6 km) north of the I-70 junction, it intersects with I-670 . After another interchange with
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3168-512: The Ohio highway sniper attacks . On November 23, 2003, 62-year-old Gail Knisley was shot to death, making her the only fatality associated with the string of shootings. Charles A. McCoy Jr., who had been diagnosed with paranoid schizophrenia in 1996, was accused of the shootings and stood trial in 2005. The first trial with death penalty charges resulted in a hung jury on May 9, 2005, most likely due to McCoy's severe mental illness. Rather than face
3267-506: 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
3366-470: 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
3465-553: 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
3564-502: The 25-mile (40 km) stretch in Delaware and Morrow counties, calling for patching that section instead. At that time, state transportation officials said they did not plan to widen that section for two reasons: traffic studies did not support the widening and there was no money for the project. But Ohio Department of Transportation (ODOT) officials eventually gave in under pressure from elected officials and business owners to widen
3663-707: The Cincinnati beltway . After passing through Covington , the freeway crosses the Ohio River via the lower level of the Brent Spence Bridge (while the southbound direction uses the upper level) and continues into Cincinnati. In Cincinnati , it splits immediately from I-75 and heads due east onto Fort Washington Way , where it continues through Downtown Cincinnati concurrently with U.S. Route 50 (US 50) for less than one mile (1.6 km). Just east of downtown, US 50 splits from I-71 and continues east; I-71 bends north and receives I-471 ,
3762-576: 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
3861-487: The Far East Freeway Study. After the I-70 interchange, the freeway becomes much more of a rural route, with only three lanes in each direction. The next interchange after I-70 is with US 33, a cloverleaf. After this, the freeway intersects Alum Creek Drive, then US 23, before the freeway meets back with I-71, forming a loop. Planning for an outerbelt around Columbus began in the late 1950s. By
3960-473: The I-270 bypass, the highway exits Columbus and continues north until near Delaware , where it again turns northeast. Beginning its path to Cleveland , I-71 enters the rolling farm country on the edges of the Allegheny Plateau . It continues in this fashion to Lodi – Westfield Center and its junction with I-76 , which provides access to Akron and points east. Heading north to Medina , it meets
4059-515: 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
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4158-493: 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
4257-535: The North Freeway. Costing $ 13.8 million (equivalent to $ 106 million in 2023), it was constructed south from SR 161 , arriving at 11th Avenue by August 1961. It took another year to construct the portion between 11th and 5th avenues, mainly due to the need to construct a massive underpass under the Pennsylvania Railroad 's Grogan Yard. Today, only two tracks cross the viaduct, and
4356-806: 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
4455-715: 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
4554-481: 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
4653-467: The airport. Construction of the outerbelt began in 1962, and work was begun on various disconnected sections. The first portion to be completed connected US 23 with I-71 south of Columbus. The portion between US 23 and I-71 on the north side opened in August 1967. The section between I-70 on the west side and I-71 on the south side opened in August 1970. In late 1970, sections opened on
4752-684: 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
4851-406: 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
4950-664: 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
5049-401: 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,
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#17327983437755148-507: The complete Kentucky portion of the Interstate was opened to the public in July 1969. At that point, it replaced US 42 as the primary link between Cincinnati and Louisville. Much of I-71 in Ohio was intended to be SR 1 . SR 1 was originally planned in the 1950s as a second Ohio Turnpike extending southwest to northeast across the state. It was planned to run from Cincinnati to Conneaut and connect with an extension built across
5247-507: 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
5346-485: The construction of the northern section of I-270 across the N&;WR and NYC-OSL railroad tracks between US 23 and I-71, the latter operator was wrecked after it hit a piece of earthmoving machinery, resulting in the operator's death and the injury of several passengers and crew. The train was dumped into the cornfield, resulting in a major operation to clean it up. On November 4, 1968, David R. Booth, aged 29, became
5445-407: 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
5544-416: The corridor where no freeway had yet been completed, existing two-lane or four-lane highways were also designated as SR 1 in order to complete the route. The SR 1 signage was removed in 1966 as the Interstate Highway numbers adequately marked the route by then and the state highway numbering was superfluous. In Columbus, the portion of I-71 that bounds Worthington's eastern edge was originally called
5643-623: 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
5742-448: 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
5841-555: The early 1960s, detailed planning for the route had begun, and several controversies arose. The first involved the location of the northern segment, which was originally planned to pass south of Worthington, passing through the Ohio School for the Deaf and just north of the then 10-year-old Graceland Shopping Center. Through vigorous lobbying throughout 1961, and with the help of Ohio Governor Michael DiSalle , residents were able to get
5940-548: The east side between US 33 and I-70, and between SR 3 in Westerville and SR 161 on the east side. It was now possible to bypass Columbus using I-270 by going around the south side of the city. In June 1971, the section between Morse Road and SR 161 on the east side opened. In October 1971, another section on the east side between I-70 and East Main Street opened. It would take four more years to complete
6039-445: 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
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#17327983437756138-739: The eastern junction near Reynoldsburg . The route furthermore links to the eastern terminus of Interstate 670 near Gahanna and provides indirect access to John Glenn Columbus International Airport . The entire length of I-270 is 54.97 miles (88.47 km). It is one of four Interstate loops not to run concurrently with another Interstate freeway, the others being I-295 in Florida , I-485 in North Carolina , and I-610 in Texas . I-270 provides access to several suburbs and towns surrounding Columbus, including Grove City, Westerville , Worthington , Hilliard , and Dublin . Although it started as
6237-450: 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
6336-492: 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
6435-426: 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
6534-430: The first person to die on I-270 when he hit another car while merging onto US 23 from I-270. In February 1974, three trucks traveling on I-270 on the south side near US 33 were struck by gunfire during a violent Teamsters Strike. The highway was the subject of national media attention in 2003 when 24 sniper shootings were reported along the southern portion of the Interstate and other neighboring highways in
6633-411: 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
6732-429: 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
6831-457: The gasoline dripping down the sides of the flyover ramp. Both highways were shut down in both directions for the day, and the ramp was shut down for one week as repairs were made. The only fatality was that of the truck driver. In 1978, the first noise barriers were constructed on the portion of I-270 passing near Gahanna. Noise barriers have been slowly added around the length of the 55-mile-long (89 km) belt as development has crowded up to
6930-494: The heavy weaving section between US 23 and SR 315; however, the project also worsened weaving between US 23 and I-71, leading to frequent mile-long (1.6 km) backups. After passing through Worthington, I-270 passes through Westerville, intersecting Cleveland Avenue and SR 3 . After going through Westerville, the freeway intersects SR 161, and the freeway is divided into local–express lanes , with three local and three express lanes in each direction. This
7029-429: 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,
7128-553: 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
7227-617: 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
7326-459: 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
7425-431: 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
7524-538: The location of sewage treatment and landfill facilities, as well as quarries and the flood prone Scioto River . Grove City began to develop in the 1990s with the addition of office/warehouse space, and the conversion of Rickenbacker Air National Guard Base to a civilian air freight facility. The entire route is in Franklin County . Columbus City Code section 2550.04 currently requires trucks which are transporting hazardous cargo and materials and do not have
7623-454: 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
7722-753: 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
7821-430: The noisy road. Massive development followed the construction of I-270, especially around the north and northwest sides. The northern suburbs of Westerville, Worthington, and Dublin and Hilliard to the west benefited the most. As in other sizeable cities across America, the effect of this outerbelt driven development was to hasten the decline of the Columbus core. The south portion of I-270 was much slower to develop due to
7920-412: The northeast portion of the outerbelt. The last section of I-270, on the east side, between Hamilton Road and East Broad Street, was opened on August 20, 1975. The total cost of the 10-year construction project was $ 175 million (equivalent to $ 770 million in 2023 ), compared to the original 1961 estimate of $ 104 million (equivalent to $ 812 million in 2023 ). In December 1965, during
8019-404: 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
8118-442: 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. Interstate 270 (Ohio) Interstate 270 ( I-270 )
8217-561: 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
8316-467: The outerbelt relocated to pass north of Worthington. Another contentious issue involved the routing of the eastern portion of the outerbelt between Port Columbus International Airport and the city of Gahanna. While the airport wanted the outerbelt pushed out toward Gahanna so as to leave land for future runway expansion, the residents of Gahanna wanted it pushed back toward Columbus. The final compromise led to an interesting kink in I-270 as it jogs around
8415-616: The panhandle of Pennsylvania to the New York State Thruway . As the highway was being planned, the Federal-Aid Highway Act of 1956 was enacted, and the project was converted from a toll road to a freeway. It was designated as SR 1, since the Interstate Highway numbering system had not yet been implemented. Portions of the freeway began to be completed and opened in 1959 with the new Interstate Highway funding, and they were marked as SR 1 as well as with their new Interstate Highway number. Since large gaps existed along
8514-656: 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 ),
8613-411: 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
8712-528: The primary highway link between Cincinnati, Columbus, and Cleveland. Between 2004 and 2006, the interchange at milepost 121 in the far northern reaches of Columbus was reconstructed to allow access to the eastern extension of Gemini Place. Before that, it was a simple diamond interchange with SR 750 (Polaris Parkway). In 1999, the state of Ohio began a 10-year, $ 500-million (equivalent to $ 860 million in 2023) project to improve I-71 between Columbus and Cleveland. The plans did not include widening
8811-775: The remaining 25-mile (40 km) stretch of I-71 from just north of the US ;36 / SR 37 interchange in Delaware County to the Morrow– Richland county line. The reconstruction and widening on the last 25-mile (40 km) stretch of I-71 in Delaware and Morrow counties began in early 2012, and the work was completed in mid-2015 at a cost of $ 144 million (equivalent to $ 181 million in 2023). I-71 has two auxiliary routes in Greater Cleveland and
8910-704: The rest of the structure supports a large, weedy field. By August 1962, the freeway had reached Fifth Avenue, and it reached downtown in November 1962. I-71 was originally planned to follow the Innerbelt Freeway northward from its current northern terminus to the Cleveland Memorial Shoreway at Dead Man's Curve when I-90 was planned to continue westward from there along the Shoreway. Upon its completion, I-71 replaced SR 3 as
9009-537: 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
9108-419: 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
9207-503: 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
9306-809: The terminus of I-271 . The highway then continues north into urban Cuyahoga County and Cleveland's suburbs, intersecting the Ohio Turnpike / I-80 . Passing Cleveland Hopkins International Airport , I-71 meets I-480 and enters Cleveland's west side, continuing on to downtown. It junctions with State Route 176 (SR 176) and terminates at I-90 on the Innerbelt . The first section of I-71 in Louisville opened in December 1966 between its terminus at Spaghetti Junction and Zorn Avenue, its first exit. Its junction with I-264 opened in July 1968, and
9405-521: The town of Carrollton , there are signs marking the location of a tragic accident that occurred on May 14, 1988 , when a drunk driver was driving north in the southbound lanes and struck a church bus full of children and teenagers, causing the bus's fuel tank to ignite into flames and killing 27 people on board. It is one of the worst bus accidents in state and national history. After having run 77 miles (124 km) from Louisville, I-71 merges with I-75 near Walton after which it intersects I-275 ,
9504-495: 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
9603-551: 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
9702-422: 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
9801-547: 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
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