I-81 through I-84 and Signed Branch Routes
| Interstates and Branch Routes | |||||||
|---|---|---|---|---|---|---|---|
| H1-8 | 10-15 | 16-29 | 30-39 | 40-45 | 49-64 | 65-69 | 70-74 |
| 75-77 | 78-80 | 81-84 | 85-88 | 89-90 | 91-94 | 95 | 96-99 |
| Interstate | South/West End | North/East End | |
|---|---|---|---|
| 81 | near Dandridge, TN | Canadian Border – Alexandria Bay, NY | |
| 381 | VA | Bristol, VA | Bristol |
| 481 | NY | DeWitt | North Syracuse |
| 581 | VA | Roanoke | north of Roanoke |
| 781 | NY | Watertown | Fort Drum |
| 82 | Ellensburg, WA | Hermiston, OR | |
| 182 | WA | west of Richland | Pasco |
| 83 | Baltimore, MD | Colonial Park, PA | |
| 283 | PA | Highspire | Oakleigh |
| 84 (west) | Portland, OR | Echo, UT | |
| 84 (east) | Dunmore, PA | Sturbridge, MA | |
| 184 | ID | Boise | Downtown Boise |
| 384 | CT | East Hartford | Bolton Notch |
| 684 | NY/CT | Rye/White Plains | Brewster |
Interstate 81 north at Exit 264 for U.S. 211 at new Market, Virginia. 09/23/14
U.S. 211 concludes a 59-mile route from Warrenton, Virginia at Interstate 81. Other U.S. highways ending at an Interstate include U.S. 151 at I-80 near Williamsburg, Iowa, U.S. 641 at I-40 near Holladay, Tennessee and U.S. 189 at I-15 in Provo, Utah.
Spanning the Susquehanna River along Interstate 83 north at Harrisburg, Pennsylvania. 06/21/12
I-83 was designated in 1960 to replace the route of U.S. 111 between Harrisburg and Baltimore, Maryland. U.S. 111 was decommissioned in 1963.