List of auxiliary Interstate Highways
Appearance
This is a list of auxiliary (three-digit) Interstate Highway designations in the United States. They are sorted in the following order:
- numerically by the primary Interstate Highway (one or two digits)
- alphabetically by the state of the auxiliary Interstate
- numerically by the auxiliary Interstate itself
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
---|---|---|---|---|
Hawaii | ||||
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4.10 mi (6.60 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
California | ||||
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17.32 mi (27.87 km) | ![]() |
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12.97 mi (20.87 km) | ![]() |
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8.44 mi (13.58 km) | ![]() |
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72.15 mi (116.11 km) | ![]() |
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32.98 mi (53.08 km) | ![]() |
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27.40 mi (44.10 km) | ![]() |
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28.02 mi (45.09 km) | ![]() |
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Proposed auxiliary route to connect to the Mexican border in San Diego | |||
Oregon | ||||
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3.49 mi (5.62 km) | ![]() |
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36.64 mi (58.97 km) | ![]() |
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3.53 mi (5.68 km) | ![]() |
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Washington | ||||
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36.64 mi (58.97 km) | ![]() |
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30.30 mi (48.76 km) | ![]() ![]() |
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proposed to bypass Seattle | |||
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1.50 mi (2.41 km) | ![]() ![]() |
Schuster Parkway in Tacoma | |
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
California | ||||
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20.43 mi (32.88 km) | ![]() |
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48.52 mi (78.09 km)[2] | ![]() |
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19.66 mi (31.64 km) | Terminal Island in Long Beach | Valley Boulevard in Alhambra | |
Florida | ||||
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6.94 mi (11.17 km) | ![]() ![]() |
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Louisiana | ||||
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8.89 mi (14.31 km) | ![]() |
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12.40 mi (19.96 km) | ![]() |
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11.25 mi (18.11 km) | ![]() |
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5.10 mi (8.21 km) | ![]() |
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4.52 mi (7.27 km) | ![]() |
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9.70 mi (15.61 km) | ![]() ![]() |
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Mississippi | ||||
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4.10 mi (6.60 km) | ![]() |
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Texas | ||||
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0.92 mi (1.48 km) | U.S.-Mexico border in El Paso | ![]() | |
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49.49 mi (79.65 km) | Beltway around San Antonio | ||
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37.97 mi (61.11 km) | Beltway around Houston | ||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
California | ||||
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54.50 mi (87.71 km) | ![]() |
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Montana | ||||
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1.19 mi (1.92 km) | ![]() ![]() |
Iron Street in Butte | |
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0.83 mi (1.34 km) | ![]() |
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Nevada | ||||
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2.417 mi (3.890 km)[3] | County Highway 215 near North Las Vegas | ![]() ![]() ![]() ![]() | |
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20.54 mi (33.06 km) | ![]() ![]() |
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Utah | ||||
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29.02 mi (46.70 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Georgia | ||||
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6.49 mi (10.44 km) | ![]() ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Georgia | ||||
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17.48 mi (28.13 km)[4] | ![]() |
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Louisiana | ||||
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17.62 mi (28.36 km) | ![]() |
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Mississippi | ||||
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12.01 mi (19.33 km) | ![]() |
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South Carolina | ||||
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17.48 mi (28.13 km)[4] | ![]() |
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Texas | ||||
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35.17 mi (56.60 km) | Beltway around Fort Worth | ||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Tennessee | ||||
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1.97 mi (3.17 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Colorado | ||||
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12.00 mi (19.31 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
South Carolina | ||||
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3.68 mi (5.92 km) | ![]() |
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19.26 mi (31.00 km) | ![]() ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Iowa-Nebraska | ||||
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3.48 mi (5.60 km) | ![]() ![]() ![]() |
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Missouri | ||||
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14.97 mi (24.09 km) | ![]() |
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South Dakota | ||||
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11.33 mi (18.23 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Arkansas | ||||
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proposed in Texarkana | |||
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12.93 mi (20.81 km) | ![]() ![]() |
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46.65 mi (75.08 km) | ![]() |
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7.40 mi (11.91 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Iowa | ||||
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13.78 mi (22.18 km) | ![]() ![]() |
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Kansas | ||||
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95.74 mi (154.08 km) | ![]() |
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16.52 mi (26.59 km) | ![]() |
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50.13 mi (80.68 km) | ![]() |
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80.81 mi (130.05 km) | Beltway around Kansas City | ||
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12.67 mi (20.39 km) | ![]() |
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Minnesota/Wisconsin | ||||
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2.78 mi (4.47 km) | ![]() ![]() |
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Missouri | ||||
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80.81 mi (130.05 km) | Beltway around Kansas City | ||
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12.67 mi (20.39 km) | ![]() |
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Oklahoma | ||||
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5.36 mi (8.63 km) | ![]() ![]() |
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Texas | ||||
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37.00 mi (59.55 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Arkansas | ||||
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9.96 mi (16.03 km) | ![]() ![]() |
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80.72 mi (129.91 km) | ![]() ![]() |
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North Carolina | ||||
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11.17 mi (17.98 km) | |||
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16.40 mi (26.39 km) | |||
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9.52 mi (15.32 km) | |||
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Future part of the Greensboro Urban Loop | |||
Oklahoma | ||||
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16.22 mi (26.10 km) | |||
Tennessee | ||||
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11.17 mi (17.98 km) | |||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Oklahoma | ||||
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15.75 mi (25.35 km) | ![]() |
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2.51 mi (4.04 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Texas | ||||
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1.4 mi (2.25 km) | ![]() ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Arkansas | ||||
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44 mi (70.81 km) | Proposed route | ||
Illinois | ||||
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32.13 mi (51.71 km) | ![]() |
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30 mi (48.28 km) | ![]() ![]() |
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20 mi (32.19 km) | ![]() |
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Missouri | ||||
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26 mi (41.84 km) | ![]() |
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30 mi (48.28 km) | ![]() ![]() |
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Tennessee | ||||
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26 mi (41.84 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Alabama | ||||
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2.3 mi (3.70 km) | ![]() ![]() |
15th Street in Steelman College | |
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32 mi (51.50 km) | ![]() ![]() |
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4.5 mi (7.24 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Indiana | ||||
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21.24 mi (34.18 km) | ![]() ![]() |
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Kentucky | ||||
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22.93 mi (36.90 km) | ![]() |
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Virginia | ||||
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25 mi (40.23 km) | ![]() ![]() |
King Street in Oceanfront | |
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5.66 mi (9.11 km) | ![]() |
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2.77 mi (4.46 km) | ![]() |
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20.79 mi (33.46 km) | ![]() ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Alabama | ||||
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4.9 mi (7.89 km) | ![]() |
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34 mi (54.72 km) | ![]() |
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Indiana | ||||
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32 mi (51.50 km) | ![]() |
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53 mi (85.30 km) | ![]() |
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5 mi (8.05 km) | ![]() |
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Kentucky | ||||
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31 mi (49.89 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Indiana | ||||
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30.83 mi (49.62 km) | ![]() |
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Mississippi | ||||
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Proposed in Greenville | |||
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Proposed Memphis, TN outer beltline. | |||
Tennessee | ||||
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Proposed in Union City / Martin | |||
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Proposed Memphis outer beltline. | |||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Colorado | ||||
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5.31 mi (8.55 km) | ![]() ![]() |
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Illinois | ||||
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14.97 mi (24.09 km) | Missouri border on the Mississippi River | ![]() ![]() | |
Kansas | ||||
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13.72 mi (22.08 km) | ![]() |
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1.64 mi (2.64 km) | ![]() |
Missouri border (Kansas River) in Kansas City, MO | |
Maryland | ||||
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34.40 mi (55.36 km) | ![]() |
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3.13 mi (5.04 km) | ![]() |
Shady Grove Metro Station | |
Missouri | ||||
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11.17 mi (17.98 km) | ![]() ![]() |
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35.62 mi (57.32 km) | ![]() ![]() |
Illinois border on the Mississippi River | |
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16.72 mi (26.91 km) | ![]() |
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1.17 mi (1.88 km) | Kansas border (Kansas River) in Kansas City, KS | ![]() | |
Ohio | ||||
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54.97 mi (88.47 km) | Beltway around Columbus, OH | ||
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6.69 mi (10.77 km) | ![]() |
West Virginia border (Ohio River) near Wheeling, WV | |
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9.37 mi (15.08 km) | ![]() |
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West Virginia | ||||
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3.94 mi (6.34 km) | Ohio border (Ohio River) near Wheeling, WV | ![]() | |
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Kentucky/Ohio | ||||
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5.75 mi (9.25 km) | ![]() |
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Ohio | ||||
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56 mi (90.12 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Illinois | ||||
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19.69 mi (31.69 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Illinois | ||||
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14.88 mi (23.95 km) | ![]() |
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North Carolina | ||||
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Proposed route in Winston-Salem | |||
South Carolina | ||||
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Proposed route in Horry County | |||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Florida | ||||
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14.88 mi (23.95 km) | ![]() |
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63.39 mi (102.02 km) | ![]() |
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1.34 mi (2.16 km) | ![]() |
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Georgia | ||||
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15.8 mi (25.43 km) | ![]() |
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30.9 mi (49.73 km) | ![]() |
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Indiana/Kentucky/Ohio | ||||
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Michigan | ||||
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Ohio | ||||
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Tennessee | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
New Jersey | ||||
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Pennsylvania | ||||
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(proposed in metro Pittsburgh) | |||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Ohio | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
New Jersey | ||||
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Bruckner Interchange | ||
New York | ||||
File:I-278 (NY).svg I-278 | ![]() |
Bruckner Interchange | ||
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File:I-278 (NY).svg I-278 | ![]() | ||
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JFK International Airport | Bruckner Interchange | ||
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Belt | Atlantic Beach Bridge | ||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Pennsylvania | ||||
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19.52 mi (31.41 km) | ![]() |
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1.57 mi (2.53 km) | ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
California | ||||
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57 mi (91.73 km) | ![]() ![]() |
King Street in San Francisco | |
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1.5 mi (2.41 km) | ![]() |
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71 mi (114.26 km) | ![]() |
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6 miles | ![]() |
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2.4 miles | ![]() |
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Illinois | ||||
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Iowa | ||||
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Nebraska | ||||
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Nevada | ||||
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New Jersey | ||||
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Ohio | ||||
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Pennsylvania | ||||
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Wyoming | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
New York | ||||
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File:I-81 (NY).svg I-81 in Syacruse | File:I-81 (NY).svg ![]() | ||
Virginia | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Washington | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Pennsylvania | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Connecticut | ||||
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File:I-287 (NY).svg I-287 | ![]() | ||
New York | ||||
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File:I-287 (NY).svg I-287 | ![]() | ||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Idaho | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Georgia | ||||
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North Carolina | ||||
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South Carolina | ||||
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Virginia | ||||
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Route proposed in Danville | |||
Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
New Jersey/New York | ||||
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File:I-95 (NY).svg I-95 | File:I-95 (NY).svg I-95 | ||
New York | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Vermont | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Illinois | ||||
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Massachusetts | ||||
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New York | ||||
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Ohio | ||||
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South Dakota | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Connecticut | ||||
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Massachusetts | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
New Hampshire | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Illinois | ||||
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Michigan | ||||
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Minnesota | ||||
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North Dakota | ||||
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Unsigned route in Bismarck | |||
Wisconsin | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Connecticut | ||||
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Delaware | ||||
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District of Columbia | ||||
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Unsigned in metro Washington, D.C. | |||
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(unsigned route) | |||
Florida | ||||
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Maine | ||||
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(unsigned in Portland) | |||
Maryland | ||||
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(unsigned in metro Washington, D.C.) | |||
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Massachusetts | ||||
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New Jersey | ||||
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New York | ||||
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File:I-495 (NY).svg I-495 | ||||
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North Carolina | ||||
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Pennsylvania | ||||
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Rhode Island | ||||
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Virginia | ||||
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
Michigan | ||||
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81 mi (130.36 km) | ![]() |
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3.43 mi (5.52 km) | ![]() |
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11.78 mi (18.96 km) | ![]() ![]() |
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21.24 mi (34.18 km) | ![]() ![]() |
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Interstate | Length[1] | Southern/Western terminus | Northern/Eastern terminus | |
California | ||||
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2.02 mi (3.25 km) | ![]() |
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See also
References
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as "Route Log and Finder List - Table 2" (CFM). Federal Highway Administration. 10-31-2002. Retrieved 2007-06-02.
{{cite web}}
: Check date values in:|date=
(help) - ^ "California Log of Bridges on State Highways, District 7" (PDF). CalTrans. 2006. Retrieved 2007-06-02.
{{cite web}}
: Check date values in:|year=
(help); Unknown parameter|month=
ignored (help) - ^ "State Maintained Highways, Descriptions, Index & Maps and NHS, Clark County" (PDF). Retrieved 2007-06-03.
{{cite web}}
: Cite has empty unknown parameter:|month=
(help) - ^ a b DeLorme Street Atlas USA 2007, Toggle Measure Tool