List of auxiliary Interstate Highways
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(Redirected from List of three-digit Interstate Highways)
The auxiliary Interstate Highways (also called three-digit Interstate Highways) are a supplemental subset of the freeways of the Interstate Highway System of the United States of America. Similar to the mainline Interstate Highways, these highways also meet all Interstate Highway Standards, they receive the same percentage of Federal funding (90%), and they comply with other Federal standards. The main purpose of the auxiliary Interstate Highways is to serve large American cities and their suburbs. However, some of them provide supplements to the main-route Interstate Highways elsewhere in the United States - in non-urbanized areas. An example of one of these is Interstate 180 (I-180) in Pennsylvania. They also sometimes spare the availability of two-digit Interstate Highway numbers. For example, some of these like I-196 in Michigan and I-540 in Arkansas are more like substitutes for two-digit Interstate numbers.[original research?]
In some cases, auxiliary Interstate Highways were added onto the original 41,000-mile (66,000 km) long Interstate System to provide an Interstate connection to rapidly-growing cities that had not received even one Interstate Highway in the original plan. Examples of these include I-565 to Huntsville, Alabama, I-185 to Columbus, Georgia, and I-555 to Jonesboro, Arkansas.
In contrast to the primary Interstate Highways, the three-digit highways often run only within or around a single metropolitan area of the United States, whether or not that metropolitan area lies within one state of the United States. In addition, the three-digit are generally shorter, and many do not cross state borders, despite the term "Interstate". Due to the large number of these routes, auxiliary route numbers may be repeated in different states along the mainline. However, no two three-digit Interstates in the same state can share the same number, unless two segments form a gap of a long route that is meant to be complete.
[edit] Terminology and guidelines
The basic tenets of the auxiliary Interstates are divided into three branches: spur, loop, and bypass routes. Each one signifies a different characteristic of the auxiliary route.
The first digit of the three digits determines whether a route is a bypass, spur, or beltway. The last two digits are derived from the main Interstate Highway. For instance, I-515 contains an odd number in the first digit– "5", and indicates that this freeway is a spur. The last two digits signify the highway's origin. In this case, the "15" in I-515 shows that it is a supplement to I-15.
[edit] Spur route
An Interstate Highway spur route is usually one of the following:
- It may serve another section of a city or metropolitan area not served by the main freeway (most often the central business district), terminating at a regular city street/avenue or at a substandard freeway.
- It may represent the first portion of a contemplated extended freeway, one that downgrades to below Interstate standards with plans to upgrade it later on (such as I-540 in Arkansas).
- It may connect two unrelated Interstate highways - such as I-390 in New York State does.
A spur route's number has an odd number for its first digit.[1]
- Examples of Interstate Highway spur routes are listed below.
- I-110 in California links I-10 with the Port of Los Angeles. However, this freeway had been built before Interstate Highways as the Harbor Freeway. It was adopted into the Interstate Highway System later on.
- I-380 in Iowa connects the cities of Waterloo and Cedar Rapids with I-80, and it also crosses open countryside.
- I-180 in North-Central Pennsylvania connects Williamsport and Lycoming County with I-80 in Milton, which does not actually enter Lycoming County. I-180 also serves as a connection to those traveling to New York and I-86 via U.S. Route 15 and the Future I-99 Corridor[2] at its western terminus.
Sometimes, a three-digit Interstate Highway branches off from another three-digit Interstate Highway. This is called a "tertiary spur route"[citation needed] of a two-digit Interstate Highway. Tertiary spurs do not connect directly with their parent highways, but they are associated with them via the three-digit highways they do intersect with.
- Examples of tertiary spur routes are listed below.
- I-795 in Baltimore County, Maryland branches off from I-695, and thus it is a tertiary spur of I-95.
- I-380 in Central California is located at the San Francisco Bay Area. This highway begins at I-280, and it never connects with its parent, I-80.
[edit] Bypass
A bypass route may traverse around a city, or may run through it with the mainline bypassing. In a typical 3-digit Interstate Highway, bypasses usually have both its two termini junctioned with another Interstate highway. Bypass routes are preceded by an even number in the first digit.[1]
- Examples of bypass routes are listed below.
- I-215 in Utah travels part of the perimeter of Salt Lake City.
- I-220 in Louisiana serves as a bypass of downtown Shreveport.
[edit] Beltway
A beltway (also known as a loop route) completely surrounds a metropolitan city, and it is often connected with multiple junctions to other routes. Unlike other auxiliary Interstate Highways, beltways do not have termini. Beltways are also preceded by an even number in the first digit.
- Examples of beltways are listed below.
- I-465 in Indiana travels around the city of Indianapolis.
- I-285 in Georgia encircles the city of Atlanta and is referred to as the "Perimeter".
- I-275 in Ohio, Kentucky and Indiana travels around the city of Cincinnati.
- I-494 and I-694 in Minnesota form a bypass loop around the urban cores of Minneapolis and St. Paul.
[edit] Exceptions
[edit] Connection discrepancies
- New York City has numerous auxiliary routes designated as being from I-78, but none of the auxiliary routes of I-78 actually intersects with it. This is because I-78 was long ago intended to continue farther east from its present terminus at the beginning of the Holland Tunnel in New Jersey. It was to cross southern Manhattan, then go through the Borough of Queens, and from there across Long Island, New York. This entire planned part of I-78 was canceled during the 1970s—after I-278, I-478, I-678, and I-878 were already completely or partially in existence.
- In the New York City area, the Long Island Expressway, signed as I-495, does not connect with Interstate 95 directly, but it does intersect with I-295, which in turn, does intersect with I-95. The connector from the New Jersey Turnpike (which is signed as I-95 in northern New Jersey) to the Lincoln Tunnel was to have been part of I-495 despite not being up to the standards of the Interstate Highway System. An expressway across Midtown Manhattan was to have connected the Lincoln Tunnel with the Queens-Midtown Tunnel, but was canceled due to concerns regarding building such a highway in the densely built Midtown area. The LIE was eventually built from the end of the Queens-Midtown Tunnel to a terminus near Riverhead on Long Island. An extension from there, to cross the end of Long Island Sound to I-95 in Connecticut, was never built. The New Jersey approach became New Jersey State Route 495.
- In the Los Angeles area, I-210 does not connect with Interstate 10 directly, nor with any other auxiliary Interstate of I-10, although they are connected through numerous other Interstates. When the California State Route 210 is re-signed I-210, it will finally connect with I-10.
- An auxiliary route numbered I-238 connects San Leandro with Castro Valley, California, yet there is no I-38 anywhere. The highway was so numbered for simple convenience since it had been previously numbered as California State Route 238. After this highway was upgraded to Interstate Highway standards, it was adopted into the Interstate Highway System. A number "I-X80" would have fit it as an auxiliary route of I-80, but at the time of I-238's designation, all of the auxiliary routes numbers of I-80 had already been used in California (Interstates 280 through 980). "I-180" was unavailable because the California Department of Transportation does not allow duplicate route numbers and there was already California State Route 180 in existence at the time. I-480 is available today but was being used for the Embarcadero Freeway, which has since been demolished.
- Pittsburgh, PA has two recently created exceptions. I-376 and I-279 had conformed to numbering conventions until 2009 when I-376 was extended from its previous terminus in Downtown Pittsburgh to its present terminus north of I-80. I-376 acted as a spur from its parent (I-76) in Monroeville (Allegheny County), but now links back up with I-76 in Lawrence County. Likewise, I-279 was a loop that met up with its parent (I-79) at two locations in Allegheny County, but now terminates in Downtown Pittsburgh (having been truncated at its intersection with I-376), and functions as a spur route from I-79.
- Augusta, GA area also has a recent exception. I-520 had conformed to numbering conventions until late 2009 as well, when I-520 was extended in South Carolina back to I-20 and is now a loop.
- Sometimes, when a spur route from a mainline Interstate highway does not meet Interstate Highway standards, a state route shield sometimes uses the parent Interstate route number as a suffix to imply that this number was derived from the Interstate Highway's.
[edit] Short mainline routes
Some mainline routes (1/2 digit Interstates) are sometimes less than half the length of the longest auxiliary Interstates, thus they fall closer to the geographical criteria for mainline routes than they do for auxiliary routes. This is often the case for intrastate mainline Interstate highways.
- Interstate 27 goes from Lubbock, TX to Amarillo, TX for 100 miles.
- Interstate 86 (west) in Idaho is a spur off Interstate 84.
[edit] Auxiliary Interstates
Below is a list of auxiliary 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
| Contents: | H-1 I-5 I-10 I-15 I-16 I-20 I-24 I-25 I-26 I-29 I-30 I-35 I-40 I-44 I-45 I-55 I-59 I-64 I-65 I-66 I-69 I-70 I-71 I-72 I-74 I-75 I-76(E) I-77 I-78 I-79 I-80 I-81 I-82 I-83 I-84(E) I-84(W) I-85 I-86 I-87 I-89 I-90 I-91 I-93 I-94 I-95 I-96 |
|---|
| Legend | ||
|---|---|---|
| Existing route | Unsigned route | Future route |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
|---|---|---|---|---|
[edit]
|
||||
|
Hawaii |
||||
 H-201 |
4.10 mi (6.60 km) | H-1 in Halawa | H-1 in Honolulu | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
California |
||||
 I-105 |
17.32 mi (27.87 km) | SR 1 in El Segundo | I-605 in Norwalk | |
 I-205 |
12.97 mi (20.87 km) | I-580 near Tracy | I-5 near Tracy | |
| I-305 | 8.44 mi (13.58 km) | I-80 in West Sacramento | I-80 Bus. / US 50 / SR 99 in Sacramento | |
 I-405 |
72.15 mi (116.11 km) | I-5 in Irvine | I-5 in Mission Hills | |
 I-505 |
32.98 mi (53.08 km) | I-80 in Vacaville | I-5 in Dunnigan | |
 I-605 |
27.40 mi (44.10 km) | I-405 in Seal Beach | I-210in Irwindale | |
 I-805 |
28.02 mi (45.09 km) | I-5 in San Ysidro | I-5 in San Diego near the University of California, San Diego | |
| I-905 | Proposed auxiliary route to connect to the Mexican border in the San Diego area | |||
|
Oregon |
||||
 I-105 |
3.49 mi (5.62 km) | OR 99 in Eugene | I-5 in Springfield | |
 I-405 |
3.53 mi (5.68 km) | I-5 in Portland | I-5 in Portland | |
|
Oregon-Washington |
||||
 I-205 |
36.64 mi (58.97 km) | I-5 in Tualatin, OR | I-5 in Salmon Creek, WA | |
|
Washington |
||||
| I-405 |
30.30 mi (48.76 km) | I-5 / SR 518 in Tukwila | I-5 / SR 525 in Lynnwood | |
 I-605 |
Proposed to bypass Seattle | |||
 I-705 |
1.50 mi (2.41 km) | I-5 / SR 7 in Tacoma | Schuster Parkway in Tacoma | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
California |
||||
 I-110 |
20.43 mi (32.88 km) | SR 47 in San Pedro, Los Angeles | I-10 / SR 110 in Los Angeles | |
 I-210 |
48.52 mi (78.09 km) | I-5 in Sylmar | SR 210 / SR 57 in Glendora | |
 I-710 |
19.66 mi (31.64 km) | Terminal Island in Long Beach | Valley Boulevard in Alhambra | |
|
Florida |
||||
 I-110 |
6.94 mi (11.17 km) | US 98 Bus. near Pensacola | I-10 near Pensacola | |
|
Louisiana |
||||
| I-110 |
8.89 mi (14.31 km) | I-10 in Baton Rouge | US 61 in Baton Rouge | |
 I-210 |
12.40 mi (19.96 km) | I-10 near Sulphur | I-10 in Lake Charles | |
 I-310 |
11.25 mi (18.11 km) | US 90 in Boutte | I-10 near Kenner | |
 I-510 |
5.10 mi (8.21 km) |  LA 47 in New Orleans |
 I-10 in New Orleans |
|
 I-610 |
4.52 mi (7.27 km) | I-10 at the Orleans-Jefferson Parish | I-10 in New Orleans | |
| I-910 | 9.70 mi (15.61 km) | US 90 Bus. in Marrero | I-10 in New Orleans | |
|
Mississippi |
||||
| I-110 |
4.10 mi (6.60 km) | US 90 in Biloxi | I-10 in D'Iberville | |
|
Texas |
||||
| I-110 |
0.92 mi (1.48 km) | United States-Mexico border in El Paso | I-10 in El Paso | |
 I-410 |
49.49 mi (79.65 km) | Beltway around San Antonio | ||
| I-610 |
37.97 mi (61.11 km) | Beltway around Houston | ||
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
California |
||||
 I-215 |
54.50 mi (87.71 km) | I-15 in Murrieta | I-15 in Devore | |
|
Montana |
||||
 I-115 |
1.19 mi (1.92 km) | I-15 / I-90 in Butte | Iron Street in Butte | |
| I-315 | 0.83 mi (1.34 km) | I-15 in Great Falls | I-15 Bus. / US 89 Great Falls | |
|
Nevada |
||||
 I-215 |
13 mi (20.921 km) | I-15 / CC 215 near Paradise | I-515 / US 93 / US 95 / SR 564 in Henderson | |
 I-515 |
20.54 mi (33.06 km) | US 93 / US 95 in Henderson | I-15 / US 93 / US 95 in Las Vegas | |
|
Utah |
||||
 I-215 |
29.02 mi (46.70 km) | I-80 in Salt Lake City | I-15 in North Salt Lake | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Georgia |
||||
 I-516 |
6.49 mi (10.44 km) | SR 21 / SR 204 in Savannah | SR 21 in Garden City | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Georgia-South Carolina |
||||
 I-520 |
17.48 mi (28.13 km) | I-20 in Augusta, GA | I-20 in North Augusta, SC | |
|
Louisiana |
||||
 I-220 |
17.62 mi (28.36 km) | I-20 in Shreveport | I-20 in Bossier City | |
|
Mississippi |
||||
| I-220 |
12.01 mi (19.33 km) | I-20 in Jackson | I-55 in Ridgeland | |
|
Texas |
||||
 I-820 |
35.17 mi (56.60 km) | Beltway around Fort Worth | ||
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Tennessee |
||||
| I-124 | 1.97 mi (3.17 km) | I-24 in Chattanooga | US-27 in Chattanooga | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Colorado |
||||
 I-225 |
12.00 mi (19.31 km) | I-25 in Denver | I-70 in Aurora | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
South Carolina |
||||
 I-126 |
3.68 mi (5.92 km) | I-26 in Columbia | US 21 / US 76 / US 176 / US 321 in Columbia | |
 I-526 |
19.26 mi (31.00 km) | I-526 Bus. / US 17 in Mount Pleasant | US 17 in Charleston | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Iowa-Nebraska |
||||
 I-129 |
3.48 mi (5.60 km) | US-20 / US-75 / US-77 in South Sioux City, NE | I-29 / US 20 / US 75 in Sioux City, IA | |
|
Missouri |
||||
 I-229 |
14.97 mi (24.09 km) | I-29 in St. Joseph | I-29 / US 59 / US 71 in St. Joseph | |
|
South Dakota |
||||
 I-229 |
11.33 mi (18.23 km) | I-29 in Sioux Falls | I-90 near Sioux Falls | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Arkansas |
||||
| I-130 | Proposed route in Texarkana | |||
 I-430 |
12.93 mi (20.81 km) | I-30 / U.S. 67 in Little Rock | I-40 / U.S. 65 in Little Rock | |
 I-530 |
46.65 mi (75.08 km) | U.S. 65 in Pine Bluff | I-30 / I-440 in Little Rock | |
 I-630 |
7.40 mi (11.91 km) | I-430 near Little Rock | I-30 in Little Rock | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Iowa |
||||
 I-235 |
13.78 mi (22.18 km) | I-35 / I-80 in West Des Moines | I-35 / I-80 near Des Moines | |
|
Kansas |
||||
 I-135 |
95.74 mi (154.08 km) | KTA / I-35 in Wichita | I-70 / US-81 in Salina | |
 I-235 |
16.52 mi (26.59 km) | K-96 in Wichita | I-135 in Wichita | |
 I-335 |
50.13 mi (80.68 km) |  I-35 / US-50 in Emporia |
I-470 in Topeka |
|
|
Kansas-Missouri |
||||
 I-435 |
80.81 mi (130.05 km) | Beltway around Kansas City, KS and Kansas City, MO | ||
 I-635 |
12.67 mi (20.39 km) | I-35 in Overland Park, KS | I-29 / US 71 in Kansas City, MO | |
|
Minnesota-Wisconsin |
||||
 I-535 |
2.78 mi (4.47 km) | I-35 / US 53 in Duluth, MN | US 53 / WIS 35 in Superior, WI | |
|
Oklahoma |
||||
 I-235 |
5.36 mi (8.63 km) | I-35 / I-40 in Oklahoma City | I-44 in Oklahoma City | |
|
Texas |
||||
 I-635 |
37.00 mi (59.55 km) | SH 121 in Grapevine | I-20 in Balch Springs | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Arkansas |
||||
 I-440 |
9.96 mi (16.03 km) | I-30 / I-530 near Little Rock | I-40 / Hwy. 440 near Little Rock | |
 I-540 |
80.72 mi (129.91 km) | U.S. 271 / Hwy. 253 near Fort Smith | U.S. 62 / U.S. 71 in Bentonville | |
|
North Carolina |
||||
 I-140 |
27 mi (44 km) | US 421 near Navassa | US 17 near Ogden | |
 I-240 |
9.14 mi (14.71 km) | I-40 / I-26 near Asheville | I-40 in eastern Asheville | |
 I-440 |
16.40 mi (26.39 km) | I-40 / US 1 / US 64 near Cary | I-40 near Raleigh | |
 I-540 |
26 mi (42 km) | I-40 near Durham | US 64 / US 264 near Knightdale | |
| I-840 | Future part of the Greensboro Urban Loop | |||
|
Oklahoma |
||||
 I-240 |
16.22 mi (26.10 km) | I-44 / US-62 in Oklahoma City | I-40 / US-270 in Oklahoma City | |
|
Tennessee |
||||
| I-140 |
11.1 miles (17.86 km) | I-40 / I-75 near Farragut | US-129 near Alcoa | |
| I-240 |
19.27 mi (31.01 km) | I-40 in Memphis | I-40 in Memphis | |
| I-440 |
8 mi (13 km) | I-40 in Nashville | I-24 in Nashville | |
 I-640 |
7.03 mi (11 km) | I-40 in Knoxville | I-40 in Knoxville | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Oklahoma |
||||
 I-244 |
15.75 mi (25.35 km) | I-44 in Tulsa | I-44 in Tulsa | |
| I-444 | 2.51 mi (4.04 km) | I-244 in Tulsa | I-244 in Tulsa | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Texas |
||||
| I-345 | 1.4 mi (2.25 km) | I-45 / I-35 in Dallas | US 75 in Dallas | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Arkansas |
||||
| I-555 | 44 mi (70.81 km) |  I-55 in Turrell |
 AR 91 in Jonesboro |
|
|
Illinois |
||||
 I-155 |
32.13 mi (51.71 km) | I-74 in Morton | I-55 in Lincoln | |
 I-355 |
32.51 mi (52.67 km) | I-80 in New Lenox | I-290 in Itasca | |
|
Illinois-Missouri |
||||
 I-255 |
30.82 mi (49.90 km) | I-55 / I-270 in Mehlville, MO | I-270 / IL 255 in Pontoon Beach, IL | |
|
Missouri-Tennessee |
||||
| I-155 |
26.77 mi (43.08 km) | I-55 near Hayti, MO | US-51 at Dyersburg, TN | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Alabama |
||||
 I-359 |
2.3 mi (3.70 km) | I-20 / I-59 in southern Tuscaloosa | 15th Street in downtown Tuscaloosa | |
 I-459 |
32 mi (51.50 km) | I-20 / I-59 in Bessemer | I-59 in Trussville | |
 I-759 |
4.5 mi (7.24 km) | I-59 in Attalla | US-411 / SR-759 in Gadsden | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Indiana |
||||
 I-164 |
21.24 mi (34.18 km) | I-64 / I-69 in Evansville | US 41 in Evansville | |
|
Kentucky |
||||
 I-264 |
22.93 mi (36.90 km) | I-64 in Louisville | I-71 in Louisville | |
|
Virginia |
||||
| I-264 |
25 mi (40.23 km) | I-64 / I-664 in Chesapeake | Parks Ave in Virginia Beach | |
 I-464 |
5.66 mi (9.11 km) | I-64 in Chesapeake | I-264 in Norfolk | |
 I-564 |
2.77 mi (4.46 km) | SR 337 | I-64 in Norfolk | |
 I-664 |
20.79 mi (33.46 km) | I-64 / I-264 in Chesapeake | I-64 in Hampton | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Alabama |
||||
 I-165 |
4.9 mi (7.89 km) | US-43 in Mobile | I-65 in Mobile | |
 I-565 |
34 mi (54.72 km) | I-65 / US-72 / SR-20 in Decatur | US-72 in Huntsville | |
|
Indiana |
||||
 I-265 |
32 mi (51.50 km) | I-64 in New Albany | SR 62 / SR 265 | |
 I-465 |
53 mi (85.30 km) | Beltway around Indianapolis | ||
 I-865 |
5 mi (8.05 km) | I-65 near Indianapolis | I-465 near Indianapolis | |
|
Kentucky |
||||
| I-265 |
24.48 mi (39.40 km) | I-65 in Louisville | I-71 in Louisville | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Indiana |
||||
 I-469 |
30.83 mi (49.62 km) | I-69 in Fort Wayne | I-69 in Fort Wayne | |
|
Mississippi-Tennessee |
||||
| I-269 | Memphis, TN outer beltline, currently under construction. | |||
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
|
Northern Kentucky |
||||
| I-369 | Henderson, KY I-69(future) Pennyrile Parkway to Owensboro, KY US 60 23.441 mile spur to Owensboro | |||
[edit]
|
||||
|
Colorado |
||||
 I-270 |
5.31 mi (8.55 km) | I-25 / US 36 at Welby | I-70 / US 36 at Denver | |
|
Illinois-Missouri |
||||
| I-270 |
50.59 mi (81.42 km) | I-55 / I-255 in Mehlville | I-55 / I-70 near Troy | |
|
Kansas |
||||
 I-470 |
13.72 mi (22.08 km) | I-70 in Topeka | I-70 in Topeka | |
|
Kansas-Missouri |
||||
 I-670 |
2.81 mi (4.52 km) | I-70 in Kansas City, KS | I-70 in Kansas City, MO | |
|
Maryland |
||||
| I-270 |
34.70 mi (55.84 km) | I-70 near Frederick | I-495 north of Bethesda | |
 I-370 |
3.13 mi (5.04 km) | I-270 in Gaithersburg | MD 200 in Derwood | |
|
Missouri |
||||
 I-170 |
11.17 mi (17.98 km) | I-64 / US 40 in Richmond Heights | I-270 in Hazelwood | |
 I-470 |
16.72 mi (26.91 km) | I-435 in Kansas City | I-70 in Independence, Missouri | |
|
Ohio |
||||
| I-270 |
54.97 mi (88.47 km) | Beltway around Columbus | ||
 I-670 |
9.37 mi (15.08 km) | I-70 in Columbus | I-270 on the east side of Columbus, near Port Columbus International Airport, Easton Town Center, and Gahanna. | |
|
Ohio-West Virginia |
||||
 I-470 |
6.69 mi (10.77 km) | I-70 near Blaine, OH | I-70 in Elm Grove, WV | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Kentucky-Ohio |
||||
 I-471 |
5.75 mi (9.25 km) | I-275 near Newport | I-71 in Cincinnati | |
|
Ohio |
||||
 I-271 |
40 mi (64.37 km) | I-71 in Medina | I-90in Willoughby | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Illinois |
||||
 I-172 |
19.69 mi (31.69 km) | I-72 in Quincy | US 24 in Quincy | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Illinois |
||||
 I-474 |
14.88 mi (23.95 km) | I-74 in Peoria | I-74 in Morton | |
|
North Carolina |
||||
| I-274 | Proposed route in Winston-Salem | |||
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Florida |
||||
 I-175 |
1.44 mi (2.32 km) | I-275 in St. Petersburg | SR 687 in St. Petersburg | |
 I-275 |
63.39 mi (102.02 km) | I-75 near Memphis | I-75 in Wesley Chapel | |
 I-375 |
1.34 mi (2.16 km) | I-275 in St. Petersburg | US 92 in St. Petersburg | |
|
Georgia |
||||
 I-475 |
15.8 mi (25.43 km) | I-75 in Macon | I-75 in Macon | |
 I-575 |
30.9 mi (49.73 km) | I-75 in Kennesaw | SR 5 west of Nelson | |
 I-675 |
11.04 mi (17.77 km) | I-75 in Stockbridge | I-285 southeast of Atlanta | |
|
Indiana-Kentucky-Ohio |
||||
| I-275 |
83.71 mi (134.72 km) | Beltway around Cincinnati | ||
|
Michigan |
||||
| I-275 |
35.01 mi (56.34 km) | I-75 near Monroe | I-96 / I-696 / M-5 in Farmington Hills | |
| I-375 |
1.06 mi (1.71 km) | Greenspur 375 to Civic Center | I-75 in Detroit | |
| I-475 |
16.99 mi (27.34 km) | I-75 in Grand Blanc Charter Township | I-75 / US 23 in Mount Morris Charter Township | |
| I-675 |
7.73 mi (12.44 km) | I-75 / US 23 in Buena Vista Charter Township | I-75 / US 23 in Kochville Township | |
|
Ohio |
||||
| I-475 |
20.37 mi (33 km) | I-75 in Perrysburg | I-75 in Toledo | |
| I-675 |
26.53 mi (43 km) | I-75 near Miamisburg | I-70 near Medway | |
|
Tennessee |
||||
| I-275 |
2.98 mi (5 km) | I-40 in Knoxville | I-75 / I-640 in Knoxville | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Pennsylvania |
||||
 I-176 |
11.33 mi (18.23 km) | I-76 / Penna. Tpk. in Morgantown | US 422 near Reading | |
 I-276 |
32.65 mi (52.55 km) | I-76 in King of Prussia | NJ Turnpike Ext. in Bristol Township (current) I-95 / I-195 in Bensalem (future) |
|
 I-376 |
80.6 mi (129.71 km) | I-80 near Hermitage | I-76 / US 22 in Monroeville | |
 I-476 |
132.10 mi (212.59 km) | I-95 near Chester | I-81 near Clarks Summit | |
| I-576 | Proposed Southern Beltway route from Pittsburgh International Airport to I-376 | |||
 I-676 |
6.90 mi (11.1 km) | I-76 / US 30 in Philadelphia | I-76 in Camden | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Ohio |
||||
 I-277 |
4.14 mi (6.66 km) | I-76 in Akron | I-77 in Akron | |
|
North Carolina |
||||
| I-277 |
4.41 mi (7.10 km) |
Beltway around uptown Charlotte, NC |
||
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
New York |
||||
 I-278 |
35.6 mi (57.3 km) | US 1 / US 9 in Linden, NJ | Bruckner Interchange in Bronx, New York | |
| I-478 | 2.14 mi (3.44 km) | I-278 in Brooklyn, New York | NY 9A in Manhattan, New York | |
 I-678 |
14 mi (23 km) |  John F. Kennedy International Airport in Queens, New York |
Bruckner Interchange in Bronx, New York | |
| I-878 | 0.70 mi (9.16 km) | I-678 in Queens, New York City near JFK Airport | JFK Expressway in Queens, New York City near JFK Airport | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Pennsylvania |
||||
 I-279 |
13.20 mi (21.24 km) | I-376 / US 22 / US 30 in Pittsburgh | I-79 in Franklin Park | |
 I-579 |
1.57 mi (2.53 km) | PA 885 in Pittsburgh | I-279 / PA 28 in Pittsburgh | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
California |
||||
 I-280 |
57 mi (91.73 km) | I-680 / US 101 in San Jose | King Street in San Francisco | |
 I-380 |
1.5 mi (2.41 km) | I-280 in San Bruno | US 101 | |
 I-580 |
71 mi (114.26 km) | US 101 in San Rafael | I-5 near Westley | |
 I-680 |
71 mi (114 km) | I-280 / US 101 in San Jose | I-80 in Cordelia | |
 I-780 |
6.52 mi (10.49 km) | I-80 in Vallejo | I-680 in Benicia | |
 I-880 |
45 mi (72 km) | I-280 / SR 17 in San Jose | I-580 / I-80 in Oakland | |
 I-980 |
2.02 mi (3.25 km) | I-880 in Downtown Oakland | I-580 / SR 24 in Oakland | |
|
Illinois |
||||
 I-180 |
13.19 mi (21.22 km) | IL 26 / IL 71 in Hennepin, Illinois | I-80 near Princeton, Illinois | |
|
Illinois-Iowa |
||||
 I-280 |
26.98 mi (43.42 km) | I-80 near Davenport, IA | I-74 / I-80 near Colona, IL | |
|
Iowa |
||||
 I-380 |
73.05 mi (117.56 km) | I-80 near Iowa City | US 218 in Waterloo | |
|
Iowa-Nebraska |
||||
 I-480 |
4.90 mi (7.89 km) | I-80 / US-75 in Omaha, NE | I-29 / US 6 in Council Bluffs, IA | |
 I-680 |
42.86 mi (68.98 km) | I-80 in Omaha, NE | I-80 near Neola, IA | |
|
Nebraska |
||||
| I-180 |
3.47 mi (5.58 km) | US-34 in Lincoln | I-80 / US-34 / US-77 in Lincoln | |
|
Nevada |
||||
| I-580 | 4.99 mi (8.03 km) | Neil Road in Reno | I-80 in Reno | |
|
New Jersey |
||||
| I-280 |
17.85 mi (28.73 km) | I-80 in Parsippany-Troy Hills | I-95 / NJ Turnpike in Kearny | |
|
Ohio |
||||
| I-280 |
12.41 mi (19.97 km) | I-75 in Toledo | I-80 / I-90 / Ohio Tpk. in Lake Township | |
| I-480 |
41.77 mi (67.22 km) | I-80 / Ohio Tpk. near North Ridgeville | I-80 / Ohio Tpk. near Streetsboro | |
| I-680 |
16.43 mi (26.44 km) | I-76 / Ohio Tpk. in North Lima, | I-80 / SR 11 near Mineral Ridge, | |
|
Pennsylvania |
||||
| I-180 |
28.85 mi (46.43 km) | US 15 / US 220 in Williamsport | I-80 / PA 147 near Milton | |
 I-380 |
24.76 mi (39.85 km) | I-80 in Tunkhannock Township | I-81 / I-84 / US 6 in Dunmore | |
|
Wyoming |
||||
| I-180 |
1.09 mi (1.75 km) | I-80 in Cheyenne | US 30/Bus I-80 | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
New York |
||||
 I-481 |
15.04 mi (24.2 km) | I-81 in Onondaga | I-81 / NY 481 in North Syracuse | |
| I-781 | 4.9 mi (7.89 km) | I-81 in Pamelia | Fort Drum main gate in Le Ray | |
|
Virginia |
||||
 I-381 |
1.70 mi (2.74 km) | SR 381 in Bristol | I-81 in Bristol | |
 I-581 |
6.35 mi (10.22 km) | US 220 / SR 24 in Roanoke | I-81 near Hollins | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Washington |
||||
 I-182 |
15.19 mi (24.45 km) | I-82 / US 12 near Richland | US 12 / US 395 in Pasco | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Pennsylvania |
||||
 I-283 |
2.91 mi (4.683 km) | I-76 / Penna. Tpk. near Highspire | I-83 / US 322/Capital Beltway near Harrisburg | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Connecticut |
||||
 I-384 |
8.53 mi (13.73 km) | I-84 / US 6 in East Hartford | US 6 / US 44 in Bolton | |
|
New York/Connecticut |
||||
 I-684 |
28.4 mi (45.7 km) | I-287 near White Plains | NY 22 near Brewster | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Idaho |
||||
 I-184 |
3.62 mi (6.00 km) | I-84 in Boise | US-20 / US-26 | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Alabama |
||||
| I-685 | 14.44 mi | Proposed auxiliary route to connect Interstate 65 in downtown Montgomery to Interstate 85 in the eastern part of the city | ||
|
Georgia |
||||
 I-185 |
49.30 mi (79.34 km) | US 27 / US 280 / SR 520 in Columbus | I-85 near LaGrange | |
 I-285 |
63.98 mi (102.97 km) | Beltway around Atlanta | ||
 I-985 |
24.04 mi (38.69 km) |  I-85 near Buford |
 SR 369 near Gainesville |
|
|
North Carolina |
||||
| I-285 |
23 mi (37 km) | I-40 / US 52 / US 311 / NC 8 in Winston-Salem | I-85 / US 52 / US 70 in Lexington | |
 I-485 |
62 mi (99.78 km) | NC 115 in Huntersville | I-85 in Charlotte | |
|
North Carolina-Virginia |
||||
| I-785 | 45 mi (72.42 km) | I-40 / I-40 / I-85 in Greensboro, NC | US 29 in Danville, VA | |
|
South Carolina |
||||
 I-185 |
17.70 mi (28.49 km) | I-385 near Mauldin | US 29 | |
 I-385 |
42.16 mi (67.85 km) | I-26 near Clinton | US 276 in Greenvile | |
 I-585 |
2.25 mi (3.62 km) | US 221 in Spartanburg | SC 56 / US 176 near Spartanburg | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
New Jersey-New York |
||||
 I-287 (Partial beltway around New York City) |
98.65 mi (158.73 km) | I-95 / NJ Turnpike in Edison, NJ | I-95 in Rye, NY | |
|
New York |
||||
 I-587 |
1.21 mi (1.95 km) | I-87 / Thruway / NY 28 in Kingston | NY 28 / NY 32 in Kingston | |
 I-787 |
9.55 mi (15.37 km) | I-87 / Thruway / I-87 in Albany | NY 7 in Green Island | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Vermont |
||||
 I-189 |
1.49 mi (2.4 km) | US 7 in South Burlington | I-89 in South Burlington | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Illinois |
||||
 I-190 |
3.07 mi (5 km) | O'Hare International Airport in Chicago |
I-90 in Chicago | |
 I-290 |
29.84 mi (48.02 km) | I-90 / IL 53 in Rolling Meadows | I-90 / I-94/Congress Parkway in Chicago | |
|
Massachusetts |
||||
| I-190 |
19.26 mi (31 km) | I-290 in Worcester | Route 2 in Leominster | |
| I-290 |
20.16 mi (32.44 km) | Mass Pike I-90 / I-395 in Auburn | I-495 in Marlborough | |
|
New York |
||||
| I-190 |
28.34 mi (45.61 km) | I-90 / Thruway in Cheektowaga | Highway 405 in Lewiston | |
| I-290 |
9.80 mi (15.77 km) | I-190 in Tonawanda | I-90 / Thruway in Williamsville | |
 I-390 |
75.86 mi (122.08 km) | I-86 / NY 17 in Avoca | I-490 in Gates | |
 I-490 |
37.40 mi (60.19 km) | I-90 / Thruway in Bergen | I-90 / Thruway in Victor | |
 I-590 |
5.07 mi (8.16 km) | I-390 in Brighton | I-490 / NY 590 in Rochester | |
 I-690 |
14.19 mi (22.84 km) | I-90 / Thruway / NY 690 in Van Buren | I-481 in East Syracuse | |
 I-790 |
2.41 mi (4 km) | I-90 / Thruway in Deerfield | NY 5A / NY 55 in Utica | |
 I-890 |
9.45 mi (15.21 km) | I-90 / Thruway in Rotterdam | I-90 / Thruway in Guilderland | |
 I-990 |
6.35 mi (10.22 km) | I-290 in Amherst | NY 263 near Lockport | |
|
Ohio |
||||
| I-490 |
2.43 mi (4 km) | I-90 / I-71 in Cleveland | 55th Street East in Cleveland | |
|
South Dakota |
||||
| I-190 |
2 mi (3 km) | I-90 in Rapid City | US 16 in Rapid City | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Connecticut |
||||
 I-291 |
6.40 mi (10.3 km) | I-91 in Windsor | I-84 in Manchester | |
 I-691 |
8.92 mi (14.36 km) | I-84 at the Southington-Cheshire Town Line | I-91 in Meriden | |
|
Massachusetts |
||||
| I-291 |
5.44 mi[1] (8.75 km) | I-91 in Springfield | Mass Pike I-90 in Chicopee | |
 I-391 |
4.86 mi (7.82 km) | I-91 in Chicopee | High Street in Holyoke | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
New Hampshire |
||||
 I-293 |
11.43 mi (18.39 km) | I-93 / NH 101 in Manchester | Everett Tpke. / I-93 in Hooksett | |
 I-393 |
4.50 mi (7.24 km) | I-93 in Concord | NH 9 in Pembroke | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Illinois |
||||
 I-294 |
53.42 mi (85.97 km) | I-80 / I-94 in South Holland, Illinois | I-94 in Deerfield, Illinois | |
|
Michigan |
||||
 I-194 |
3.42 mi (5.5 km) | I-94 in Battle Creek | M-66 in Battle Creek | |
|
Minnesota |
||||
 I-394 |
9.50 mi (15.30 km) | I-494 / US 12 in Minnetonka | 4th Street in Minneapolis | |
 I-494 |
43 mi (69 km) | I-94 / I-694 in Maple Grove | I-94 / I-694 in Woodbury | |
 I-694 |
31 mi (50 km) | I-94 / I-494 in Maple Grove | I-94 / I-494 in Woodbury | |
|
North Dakota |
||||
| I-194 | 1.7 mi (2.7 km) | McKenzie Drive near Bismarck | I-94 near Mandan | |
|
Wisconsin |
||||
 I-794 |
3.75 mi (6.04 km) | I-43 / I-94 in Milwaukee | WIS 794 in Milwaukee | |
 I-894 |
9.30 mi (14.97 km) | I-94 in Milwaukee | I-43 / I-94 in Milwaukee | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Connecticut-Massachusetts |
||||
 I-395 |
66.63 mi (107.23 km) | I-95 in East Lyme, CT | I-90 in Auburn, MA | |
|
Delaware |
||||
 I-495 |
11.47 mi (18.46 km) | I-95 / I-295 in Newport | I-95 in Claymont | |
|
Delaware-New Jersey |
||||
 I-295 |
73.50 mi (118.29 km) | I-95 / I-495 in New Castle, DE | I-95 / US 1 in Lawrence Township (current) I-195 in Hamilton Township (future) |
|
|
District of Columbia |
||||
 I-695 |
1.39 mi (2.24 km) | I-395 in Washington | Pennsylvania Avenue in Washington | |
|
Florida |
||||
 I-195 |
4.91 mi (7.90 km) | I-95 / SR 112 in Miami | SR 907 in Miami Beach | |
| I-295 |
35.51 mi (57.15 km) | I-95 / SR 9A in Jacksonville | I-95 / SR 9A in Jacksonville | |
| I-395 |
1.12 mi (2 km) | I-95 | MacArthur Causeway at Watson Island, Miami | |
 I-595 |
13 mi (20 km) | I-75 / SR 869 in Weston | US 1 in Fort Lauderdale | |
| I-795 | Proposed route south of Jacksonville | |||
|
Maine |
||||
| I-195 |
1.55 mi (2.49 km) | I-95 in Saco | SR 5 in Saco | |
| I-295 |
52 mi (84 km) | I-95 in Scarborough | I-95 in Gardiner | |
| I-395 |
4.99 mi (8.03 km) | I-95 / US 2 / SR 100 in Bangor | US 1A in Brewer | |
| I-495 | 3.7 mi (6 km) | I-95 in Portland | I-295 / US 1 in Falmouth | |
|
Maryland |
||||
| I-195 |
4.88 mi (7.85 km) | I-95 / MD 166 near Catonsville | Baltimore-Washington International Airport |
|
| I-395 |
1.98 mi (3.19 km) | I-95 in South Baltimore | West Pratt Street in Baltimore | |
| I-595 | 19.97 mi (32 km) | I-95 / I-495 / US 50 near Washington, DC | US 50 / US 301 / MD 70 in Annapolis | |
| I-695 |
51.46 mi (82.82 km) | Beltway around Baltimore | ||
 I-795 |
8.99 mi (14.47 km) | I-695 in Pikesville | MD 140 in Reisterstown | |
 I-895 |
11.44 mi (18.41 km) | I-95 near Elkridge | I-95 in Baltimore | |
|
Maryland-District of Columbia |
||||
| I-295 |
8.05 mi (12.96 km) | I-95 / I-495 near Forest Heights, MD | I-695 in Washington, DC | |
|
Maryland-District of Columbia-Virginia |
||||
| I-495 |
64.0 mi (103 km) | Beltway around Washington, DC | ||
|
Massachusetts |
||||
| I-495 |
120.74 mi (194.31 km) | I-195 in Wareham | I-95 in Salisbury | |
|
New Jersey-Pennsylvania |
||||
| I-195 |
34.17 mi (54.99 km) | I-295 in Hamilton Township (current) I-95 / I-276 in Bensalem Township, Pennsylvania (future) |
Route 34 in Wall Township | |
|
New York |
||||
| I-295 |
9.10 mi (14.65 km) | NY 25 in Queens, New York City | Bruckner Interchange in Bronx, New York City | |
| I-495 |
71.02 mi (114.3 km) | Queens Midtown Tunnel in Manhattan, New York City | CR 58 in Riverhead | |
| I-695 |
1.3 mi (2.1 km) | I-95 in Bronx, New York City | I-295 in Bronx, New York City | |
| I-895 |
1.12 mi (1.8 km) | I-278 in Bronx, New York City | I-95 in Bronx, New York City | |
|
North Carolina |
||||
| I-295 | Planned route around the west side of Fayetteville | |||
| I-795 |
25.41 mi (40.9 km) | US 70 / US 117 in Goldsboro, NC | I-95 / US 264 in Wilson, NC | |
|
Rhode Island-Massachusetts |
||||
| I-195 |
40.1 mi (64.5 km) | I-95 in Providence, RI | I-495 / Route 25 in Wareham, MA | |
| I-295 |
26.58 mi (42.78 km) | I-95 in Warwick, RI | I-95 in Attleboro, MA | |
|
Virginia |
||||
| I-195 |
3.50 mi (5.63 km) | SR 195 in Richmond | I-64 / I-95 in Richmond | |
| I-295 |
52.75 mi (84.89 km) | I-95 near Petersburg | I-64 near Short Pump | |
|
Virginia-District of Columbia |
||||
| I-395 |
13 mi (21 km) | I-95 / I-495 in Springfield, VA | US 50 in Washington, DC | |
| Interstate | Length[3] | Southern/Western terminus | Northern/Eastern terminus | |
[edit]
|
||||
|
Michigan |
||||
 I-196 |
81 mi (130.35 km) | I-94 in Benton Harbor | I-96 in Grand Rapids | |
| I-296 | 3.43 mi (5.52 km) | I-196 in Grand Rapids | I-96 / M-37 in Walker | |
 I-496 |
11.78 mi (18.96 km) | I-69 / I-96 in Lansing | I-96 in Lansing | |
 I-696 |
29.24 mi (47.04 km) | I-96 / I-275 / M-5 in Novi | I-94 in Roseville | |
Interstate H-1
Interstate 5
Interstate 10
Interstate 15
Interstate 16
Interstate 20
Interstate 24
Interstate 25
Interstate 26
Interstate 29
Interstate 30
Interstate 35
Interstate 40
Interstate 44
Interstate 45
Interstate 55
Interstate 59
Interstate 64
Interstate 65
Interstate 69
Interstate 70
Interstate 71
Interstate 72
Interstate 74
Interstate 75
Interstate 76 (east)
Interstate 77
Interstate 78
Interstate 79
Interstate 80
Interstate 81
Interstate 82
Interstate 83
Interstate 84 (east)
Interstate 85
Interstate 87
Interstate 89
Interstate 90
Interstate 91
Interstate 93
Interstate 94
Interstate 95
Interstate 96[edit] See also
[edit] References
- ^ a b "FHWA Route Log and Finder List: Interstate Route Numbering" (CFM). Federal Highway Administration. 2002-10-31. http://www.fhwa.dot.gov/reports/routefinder/index.cfm#s09. Retrieved 2008-02-03.
- ^ http://en.wikipedia.org/wiki/Interstate_99#Future
- ^ 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 "Route Log and Finder List — Table 2" (CFM). Federal Highway Administration. 2002-10-31. http://www.fhwa.dot.gov/reports/routefinder/table2.cfm. Retrieved 2007-06-02.
[edit] External links
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