Route | Maps | State | Starts | Ends | Notes |
2 |  |
Texas
|
US 83 in Peñitas, Texas | I-69E/US 77/US 83 in Harlingen, Texas |
|
4 |  |
Florida
|
I-275 in Tampa, Florida | I-95/SR 400 in Daytona Beach, Florida |
|
5 |  |
California, Oregon, Washington
|
Fed. 1 at Mexican border in San Ysidro, California | BC 99 at Canadian border in Blaine, Washington |
|
8 |  |
California, Arizona
|
Sunset Cliffs Boulevard/Nimitz Boulevard in San Diego, California | I-10 in Casa Grande, Arizona |
|
10 |  |
California, Arizona, New Mexico, Texas, Louisiana, Mississippi, Alabama, Florida
|
SR 1 in Santa Monica, California | I-95/US 17/SR 228 in Jacksonville, Florida |
|
11 |  |
Nevada
|
US 93 at Arizona state line near Boulder City, Nevada | I-215/I-515/US 93/US 95/SR 564 in Henderson, Nevada |
Planned extension north and south
|
12 |  |
Louisiana
|
I-10 in Baton Rouge, Louisiana | I-10/I-59 in Slidell, Louisiana |
|
14 |  |
Texas
|
US 190/SH 9 in Copperas Cove, Texas | I-35 in Belton, Texas |
Planned extension east and west
|
15 |  |
California, Nevada, Arizona, Utah, Idaho, Montana
|
I-8/SR 15 in San Diego, California | Hwy. 4 at Canadian border in Sweetgrass, Montana |
|
16 |  |
Georgia
|
I-75 in Macon, Georgia | SR 404 and Montgomery Street/Martin Luther King Jr. Boulevard in Savannah, Georgia |
|
17 |  |
Arizona
|
I-10 in Phoenix, Arizona | I-40/SR 89A in Flagstaff, Arizona |
|
19 |  |
Arizona
|
Fed. 15 at Mexican border in Nogales, Arizona | I-10 in Tucson, Arizona |
|
20 |  |
Texas, Louisiana, Mississippi, Alabama, Georgia, South Carolina
|
I-10 at Scroggins Draw, Texas | I-95 in Florence, South Carolina |
|
22 |  |
Mississippi, Alabama
|
I-269/US 78 near Byhalia, Mississippi | I-65/US 31 in Birmingham, Alabama |
|
24 |  |
Illinois, Kentucky, Tennessee, Georgia
|
I-57 in Pulley's Mill, Illinois | I-75 in Chattanooga, Tennessee |
|
25 |  |
New Mexico, Colorado, Wyoming
|
I-10/US 85/US 180 in Las Cruces, New Mexico | I-90/US 87 in Buffalo, Wyoming |
|
26 |  |
Tennessee, North Carolina, South Carolina
|
US 11W/US 23 in Kingsport, Tennessee | US 17 in Charleston, South Carolina |
|
27 |  |
Texas
|
US 87/Loop 289 in Lubbock, Texas | I-40/US 87/US 287 in Amarillo, Texas |
|
29 |  |
Missouri, Iowa, South Dakota, North Dakota
|
I-35/I-70/US 24/US 40/US 71 in Kansas City, Missouri | US 81 and PTH 75 at Canadian border in Pembina, North Dakota |
|
30 |  |
Texas, Arkansas
|
I-20 in Fort Worth, Texas | I-40/US 65/US 67/US 167 in North Little Rock, Arkansas |
|
35 |  |
Texas, Oklahoma, Kansas, Missouri, Iowa, Minnesota
|
US 83/SH 359/BS I-35 and MX-85 at Mexican border in Laredo, Texas | MN 61/LSCT/26th Avenue in Duluth, Minnesota |
|
37 |  |
Texas
|
US 181 in Corpus Christi, Texas | I-35/US 281 in San Antonio, Texas |
|
39 |  |
Illinois, Wisconsin
|
I-55 in Normal, Illinois | WIS 29/US 51 in Wausau, Wisconsin |
|
40 |  |
California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, Tennessee, North Carolina
|
I-15 in Barstow, California | US 117/NC 132 in Wilmington, North Carolina |
|
41 |  |
Illinois, Wisconsin
|
I-94/US 41 in Russell, Illinois | I-43/US 41/US 141 in Howard, Wisconsin |
|
43 |  |
Wisconsin
|
I-39/I-90 in Beloit, Wisconsin | I-41/US 41/US 141 in Howard, Wisconsin |
|
44 |  |
Texas, Oklahoma, Missouri
|
US 82/US 277/US 281/US 287 in Wichita Falls, Texas | I-70 in St. Louis, Missouri |
|
45 |  |
Texas
|
SH 87 in Galveston, Texas | I-30/US 67/US 75 in Dallas, Texas |
|
49 |  |
Louisiana, Arkansas, Missouri
|
I-10 in Lafayette, Louisiana | I-435/I-470/US 50/US 71 in Kansas City, Missouri |
|
55 |  |
Louisiana, Mississippi, Tennessee, Arkansas, Missouri, Illinois
|
I-10 in LaPlace, Louisiana | US 41 in Chicago, Illinois |
|
57 |  |
Missouri, Illinois
|
I-55 in Miner, Missouri | I-94 in Chicago, Illinois |
|
59 |  |
Louisiana, Mississippi, Alabama, Georgia
|
I-10/I-12 in Slidell, Louisiana | I-24 in Wildwood, Georgia |
|
64 |  |
Missouri, Illinois, Indiana, Kentucky, West Virginia, Virginia
|
I-70/US 61 in Wentzville, Missouri | I-264/I-664 in Chesapeake, Virginia |
|
65 |  |
Alabama, Tennessee, Kentucky, Indiana
|
I-10 in Mobile, Alabama | US 12/US 20 in Gary, Indiana |
|
66 |  |
Columbia, Virginia
|
I-81 in Front Royal, Virginia | US 29 in Washington, D.C. |
|
68 |  |
West Virginia, Maryland
|
I-79 in Morgantown, West Virginia | I-70 in Hancock, Maryland |
|
69 |  |
Texas, Mississippi, Tennessee, Indiana
|
I-69E/US 77 & I-69W/US 59 in Victoria, Texas (future) | Hwy 402 at Canadian border in Port Huron, Michigan |
|
70 |  |
Utah, Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Pennsylvania, Maryland
|
I-15 in Cove Fort, Utah | Park and ride in Baltimore, Maryland |
|
71 |  |
Kentucky, Ohio
|
I-64 in Louisville, Kentucky | I-90 in Cleveland, Ohio |
|
72 |  |
Missouri, Illinois
|
US 61 in Hannibal, Missouri | Church Street and University Avenue in Champaign, Illinois |
|
73 |  |
North Carolina
|
US 220 near Stokesdale, North Carolina | I‑74 and US 220 in Randleman, North Carolina |
Planned extension north and south
|
74 |  |
Iowa, Illinois, Indiana, Ohio, North Carolina
|
I-80 in Bettendorf, Iowa | US 74/NC 41 near Lumberton, North Carolina |
|
75 |  |
Florida, Georgia, Tennessee, Kentucky, Ohio, Michigan
|
SR 826/SR 916/SR 924 in Miami Lakes, Florida | Canadian border at Sault Ste. Marie, Michigan |
|
76a |  |
Colorado, Nebraska
|
I-70 at Denver, Colorado | I-80 at Big Springs, Nebraska |
|
76b |  |
Ohio, Pennsylvania, New Jersey
|
I-71 in Westfield Center, Ohio | I-295 at Bellmawr, New Jersey |
|
77 |  |
South Carolina, North Carolina, Virginia, West Virginia, Ohio
|
I-26 in Columbia, South Carolina | I-90 in Cleveland, Ohio |
|
78 |  |
Pennsylvania, New Jersey, New York
|
I-81 at Jonestown, Pennsylvania | Canal Street in New York City |
|
79 |  |
West Virginia, Pennsylvania
|
I-77 in Charleston, West Virginia | PA 5 in Erie, Pennsylvania |
|
80 |  |
California, Nevada, Utah, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, Pennsylvania, New Jersey
|
US 101 in San Francisco, California | I-95 in Teaneck, New Jersey |
|
81 |  |
Tennessee, Virginia, West Virginia, Maryland, Pennsylvania, New York
|
I-40 in Dandridge, Tennessee | Canadian border at Wellesley Island, New York |
|
82 |  |
Washington, Oregon
|
I-90 in Ellensburg, Washington | I-84 in Hermiston, Oregon |
|
83 |  |
Maryland, Pennsylvania
|
President Street and Fayette Street in Baltimore, Maryland | I-81 in Harrisburg, Pennsylvania |
|
84a |  |
Oregon, Idaho, Utah
|
I-5 in Portland, Oregon | I-80 in Echo, Utah |
|
84b |  |
Pennsylvania, New York, Connecticut, Massachusetts
|
I-81 in Scranton, Pennsylvania | I-90 in Sturbridge, Massachusetts |
|
85 |  |
Alabama, Georgia, South Carolina, North Carolina, Virginia
|
I-65 in Montgomery, Alabama | I-95 in Petersburg, Virginia |
|
86a |  |
Idaho
|
I-84 near Declo, Idaho | I-15 in Chubbuck, Idaho |
|
86b |  |
New York
|
I-90 near North East, Pennsylvania | NY 17/NY 79 in Windsor, New York |
Unfinished in New York
|
87a |  |
North Carolina
|
I-440/US 64/US 264 in Raleigh, North Carolina | US 64/US 264 in Wendell, North Carolina |
Planned northern extension
|
87b |  |
New York
|
I-278 in New York City | A-15 at Canadian border in Champlain, New York |
|
88a |  |
Illinois
|
I-80/IL 92 in East Moline, Illinois | I-290/IL 110 in Hillside, Illinois |
|
88b |  |
New York
|
I-81 in Binghamton, New York | I-90 in Schenectady, New York |
|
89 |  |
New Hampshire, Vermont
|
I-93/SR 3A in Bow, New Hampshire | Route 133/Future A-35 at Canadian border in Highgate, Vermont |
|
90 |  |
Washington, Idaho, Montana, Wyoming, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, New York, Massachusetts
|
SR 519/4th Avenue/Edgar Martinez Drive in Seattle, Washington | MA 1A in Boston, Massachusetts |
|
91 |  |
Connecticut, Massachusetts, Vermont
|
I-95 in New Haven, Connecticut | A-55 at Canadian border in Derby Line, Vermont |
|
93 |  |
Massachusetts, New Hampshire, Vermont
|
I-95/US 1 in Canton, Massachusetts | I-91 in St. Johnsbury, Vermont |
|
94 |  |
Montana, North Dakota, Minnesota, Wisconsin, Illinois, Indiana, Michigan
|
I-90 in Lockwood, Montana | Highway 402 at Canadian border in Port Huron, Michigan |
|
95 |  |
Florida, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, Maine
|
US 1 in Miami, Florida | NB 95 at Canadian border in Houlton, Maine |
|
96 |  |
Michigan
|
US 31 in Norton Shores, Michigan | I-75 in Detroit, Michigan |
|
97 |  |
Maryland
|
US 50 in Annapolis, Maryland | I-695/I-895 in Glen Burnie, Maryland |
|
99 |  |
Pennsylvania
|
I-70/I-76 in Bedford, Pennsylvania | I-86/NY 17 in Painted Post, New York |
Unfinished in Pennsylvania
|