System information | |
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Notes | Indiana Routes are generally state-maintained. |
Highway names | |
Interstates | Interstate X (I-X) |
US Highways | U.S. Route X (US X) |
State | State Road X (SR X) |
System links | |
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Interstate Highways are owned and maintained by INDOT unless it is a toll road.
The system was authorized by the Federal-Aid Highway Act of 1956, which provided federal funds for construction of limited access highways. Indiana's initial set of seven Interstate Highways were announced in September 1957. [1]
Number | Length (mi) [2] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
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I-64 | 123.33 | 198.48 | I-64 at Illinois state line west of Griffin | I-64 at Kentucky state line at New Albany | 1956 | current | ||
I-65 | 261.27 | 420.47 | I-65 at Kentucky state line at Jeffersonville | US 12/US 20 in Gary | 1956 | current | Formerly the longest Interstate in Indiana | |
I-69 | 310.02 | 498.93 | US 41/Veterans Memorial Parkway in Evansville I-465 in Indianapolis | SR 144 near Bargersville I-69 at Michigan state line northwest of Fremont | 1956 | current | Longest Interstate in Indiana | |
I-70 | 156.60 | 252.02 | I-70 at Illinois state line west of Terre Haute | I-70 at Ohio state line at Richmond | 1956 | current | ||
I-74 | 171.54 | 276.07 | I-74 at Illinois state line west of Covington | I-74 at Ohio state line at West Harrison | 1960 | current | ||
I-80 | 151.56 | 243.91 | I-80/I-94 at Illinois state line at Munster | I-80/I-90 at Ohio state line east of Angola | 1956 | current | Indiana Toll Road from I-80/I-90/I-94 split in NW Indiana to Ohio state line | |
I-90 | 156.28 | 251.51 | I-90 at Illinois state line in Hammond | I-80/I-90 at Ohio state line east of Angola | 1956 | current | Indiana Toll Road | |
I-94 | 46.13 | 74.24 | I-80/I-94 at Illinois state line in Munster | I-94 at Michigan state line northeast of Michigan City | 1956 | current | ||
Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
---|---|---|---|---|---|---|---|---|
I-164 | 21.39 [3] | 34.42 | US 41/Veterans Memorial Parkway in Evansville | I-64/I-69 northwest of Elberfeld | 1968 | [4] | 2014Redesignated as I-69 in 2014 | |
I-165 | — | — | I-70/I-65 "North Split" interchange in downtown Indianapolis | 38th Street in Indianapolis | 1978 | 1981 | Cancelled; instead, lanes were added on I-70 from the North Split to I-465 on the eastside, and on I-465 to the I-69 interchange on the northside. | |
I-265 | 6.73 [5] | 10.83 | I-64/US 150 in New Albany | I-265 at Kentucky state line | 1977 | current | Part of outer beltway around Louisville, Kentucky | |
I-275 | 3.16 [5] | 5.09 | I-275 at Kentucky state line (Ohio River) | I-275 at Ohio state line | 1962 | current | Part of a beltway around Cincinnati, Ohio | |
I-294 | 15 | 24 | I-80/I-90/I-294/US 6/US 41 Toll at Illinois state line | I-80/I-90/I-94/Indiana Toll Road in Lake Station | 1958 | 1965 | Formerly routed along the entirety of the Borman Expressway (I-80/I-90 [now I-94]); only I-294 in Illinois remains | |
I-465 | 52.79 | 84.96 | Beltway around Indianapolis | 1959 | current | Indianapolis beltway | ||
I-469 | 30.83 [5] | 49.62 | I-69 south of Fort Wayne | I-69 north of Fort Wayne | 1989 | current | Southern, eastern, and northern bypass around Fort Wayne | |
I-865 | 4.72 | 7.60 | I-65 near Royalton | I-465 south of Zionsville | 2002 | current | Connector between I-465 and I-65 in northwest of Indianapolis; renumbered from I-465 to eliminate three-way intersection of I-465 | |
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The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, the Eisenhower Interstate System, or simply the Interstate, 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.
Interstate 605 is a 27-mile-long (43 km) major north–south auxiliary Interstate Highway in the Greater Los Angeles urban area of Southern California. It runs from I-405 and State Route 22 (SR 22) in Seal Beach to I-210 in Duarte. The San Gabriel River Freeway closely parallels the San Gabriel River for most of its alignment, hence its name, which is one of the few Southern California freeways not named after a city along its route.
Interstate 296 (I-296) is a part of the Interstate Highway System in the US state of Michigan. It is a north–south state trunkline highway that runs for 3.43 miles (5.52 km) entirely within the Grand Rapids area. Its termini are I-196 near downtown Grand Rapids and I-96 on the north side of Grand Rapids in Walker. For most of its length, the Interstate runs concurrently with U.S. Highway 131 (US 131), which continues as a freeway built to Interstate Highway standards north and south of the shorter I-296. The highway was first proposed in the late 1950s and opened in December 1962, but the Michigan Department of Transportation (MDOT) has since eliminated all signage for I-296 and removed the designation from their official state map. The designation is therefore unsigned, but still listed on the Interstate Highway System route log maintained by the Federal Highway Administration (FHWA).
Interstate 180 (I-180) is a 1.09-mile-long (1.75 km) connector in the US state of Wyoming between I-80 and downtown Cheyenne.
Interstate 205 (I-205) is an east–west auxiliary Interstate Highway in the San Joaquin Valley in Northern California. It runs from I-5 west to I-580. Along with those highways, I-205 forms the north side of a triangle around the city of Tracy. The route provides access from the San Francisco Bay Area to the northern San Joaquin Valley.
The Falmouth Spur is a short freeway connecting Interstate 95 (I-95) with I-295 and US Route 1 (US 1) north of Portland, Maine, in the United States. It carries the unsigned designation of Interstate 495 (I-495). As part of the Maine Turnpike, the mainline of which carries I-95, the Falmouth Spur is a toll road. The spur has only two interchanges—one at each end—and a toll booth in the middle. It is signed only for its destinations—I-95, I-295, and US 1—to minimize driver confusion.
Interstate 115 (I-115) is a 1.194-mile-long (1.922 km) auxiliary Interstate Highway which connects I-15/I-90 to Butte in the U.S. state of Montana. The highway is concurrent with I-15 Bus./I-90 Bus. for its entire length. The highway travels from an incomplete interchange with I-15/I-90 through generally rural areas in western Butte. It also has an interchange with Excelsior Avenue before terminating. The entire route was improved to Interstate standards during the 1960s, and was further improved in 2005.
Interstate 164 (I-164) was a spur highway of I-64, between that highway and U.S. Highway 41 (US 41) in Evansville, Indiana. I-164, also known as the Robert D. Orr Highway, had a total length of 21.24 miles (34.18 km) and was the only auxiliary route of I-64 in Indiana. Requested as an Interstate and approved in 1968, the freeway was opened to traffic on August 2, 1990.
Interstate 70 (I-70) is a portion of the Interstate Highway System that runs from near Cove Fort, Utah, at a junction with I-15 to Baltimore, Maryland. It crosses the Northern Panhandle of West Virginia through Ohio County and the city of Wheeling. This segment is the shortest of all states through which I-70 passes, crossing West Virginia for only 14.45 miles (23.26 km). The Fort Henry Bridge carries I-70 from Wheeling Island across the Ohio River and into downtown Wheeling before the freeway enters the Wheeling Tunnel. I-470, a southerly bypass of Wheeling and the lone auxiliary Interstate Highway in West Virginia, is intersected near Elm Grove. Before crossing into Pennsylvania, I-70 passes The Highlands, a major shopping center in the panhandle, and the Bear Rocks Lake Wildlife Management Area. On average, between 27,000 and 53,000 vehicles use the freeway every day.