Future Interstates on the National Highway System Designated by Section 1105 of ISTEA as amended.
Congressional High Priority Corridors- all of which are designated as Future Interstates
| 1 | North-South Corridor | Missouri, Arkansas and Louisiana |
|---|---|---|
| 9 | United States Route 220 and the Appalachian Thruway Corridor | (I-99) Pennsylvania and New York |
| 18 | I-69 Corridor | Michigan, Illinois, Indiana, Kentucky, Tennessee, Mississippi, Arkansas, Louisiana and Texas |
| 20 | United States Route 59 Corridor (I-69) | Texas |
| 36 | New York and Pennsylvania State Route 17 (I-86) | New York and Pennsylvania |
| 37 | United States Route 90 | Louisiana |
| 40 | The Greensboro Corridor | Virginia and North Carolina |
| 42 | A portion of Corridor V of the Appalachian Development Highway System | Mississippi |
| 45 | United States Route 78 Corridor and Corridor X of the Appalachian Development Highway System | Tennessee, Mississippi, and Alabama |
| 54 | California Farm-to-Market Corridor | California |
| 57 | U.S. 41 | Wisconsin |
| 79 | Interstate Route 376 | Pennsylvania |
Congressional High Priority Corridors - portions of which are designated as Future Interstates
| 3 | East-West Transamerica Corridor | This corridor extends from Virginia to West Virginia, Kentucky, Illinois, Missouri, Arkansas, Kansas, Oklahoma, Texas, Colorado, New Mexico, Utah, Arizona, Nevada and California but only the portion in Kentucky is designated as a future interstate. |
|---|---|---|
| 5 | I-73/74 North-South Corridor | This corridor extends from Michigan, to Ohio, Kentucky, West Virginia, Virginia, North Carolina, and South Carolina. However, only the portion from Portsmouth, Ohio south is designated as a future interstate. |
