Alabama
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-14 | Proposed extension into Alabama |
.svg){kind=small} | I-20 | |
.svg){kind=small} | I-22 | |
.svg){kind=small} | I-59 | |
.svg){kind=small} | I-63 | Proposed; number not definite |
.svg){kind=small} | I-65 | |
.svg){kind=small} | I-85 | |
 | I-110 | Former proposed extension into Alabama |
.svg){kind=small} | I-165 | |
.svg){kind=small} | I-210 | Former proposed number for what is now I-165 |
.svg){kind=small} | I-222 | Proposed |
.svg){kind=small} | I-359 | |
.svg){kind=small} | I-422 | Proposed |
.svg){kind=small} | I-459 | |
.svg){kind=small} | I-565 | |
.svg){kind=small} | I-685 | Proposed |
.svg){kind=small} | I-759 | |
 | US 11 | |
.svg){kind=small} | US 13 | Cancelled extension into Alabama |
 | US 29 | |
 | US 31 | |
 | US 43 | |
 | US 45 | |
 | US 72 | |
 | US 78 | |
 | US 78S | Decommissioned |
 | US 78N | Decommissioned |
 | US 80 | |
 | US 82 | |
 | US 84 | |
.svg){kind=small} | US 86 | Former proposed number for part of what is now US 84 |
 | US 90 | |
 | US 98 | |
 | US 231 | |
 | US 241 | Decommissioned |
 | US 278 | |
 | US 280 | |
 | US 331 | Decommissioned |
 | US 331 | |
.svg){kind=small} | US 378 | Cancelled extension into Alabama |
 | US 411 | |
 | US 431 |
Alaska
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | A-1 | Unsigned |
.svg){kind=small} | A-2 | Unsigned |
.svg){kind=small} | A-3 | Unsigned |
.svg){kind=small} | A-4 | Unsigned |
.svg){kind=small} | US-97 | Proposed; could have actually been signed |
Arizona
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-8 | |
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-11 | Proposed extension into Arizona |
.svg){kind=small} | I-15 | |
.svg){kind=small} | I-17 | |
.svg){kind=small} | I-19 | |
.svg){kind=small} | I-40 | |
 | I-66 | Former proposal |
| I-66 | Former number for a proposed renumbering of I-40 |
.svg){kind=small} | I-410 | Decommissioned |
.svg){kind=small} | I-510 | Decommissioned |
.svg){kind=small} | I-710 | Former proposal |
.svg){kind=small} | US 55 | Former proposal |
 | US 60 | Former proposed number for what became US 66 |
 | US 60 | |
| US 60X | Unsigned | |
.svg){kind=small} | US 62 | Cancelled extension into Arizona |
 | US 64 | |
.svg){kind=small} | US 66 | Decommissioned |
 | US 70 | Decommissioned |
 | US 70 | |
.svg){kind=small} | US 80 | Decommissioned in Arizona |
 | US 87 | Former proposal (two proposals; both canceled) |
 | US 87W | Former proposal |
 | US 87E | Former proposal |
 | US 89 | |
.svg){kind=small} | US 90 | Cancelled extension into Arizona |
.svg){kind=small} | US 91 | Decommissioned in Arizona |
 | US 93 | |
 | US 95 | |
 | US 160 | |
 | US 163 | |
.svg){kind=small} | US 164 | Decommissioned |
 | US 180 | Decommissioned |
 | US 180 | |
 | US 191 | |
 | US 193 | Former proposed number for parts of SR 84, SR 87, & SR 187 |
 | US 260 | Decommissioned |
.svg){kind=small} | US 280 | Former proposal |
.svg){kind=small} | US 380 | Former proposal |
.svg){kind=small} | US 466 | Decommissioned |
.svg){kind=small} | US 666 | Decommissioned |
.svg){kind=small} | US 789 | Former proposal |
Arkansas
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-29 | Former proposal |
.svg){kind=small} | I-30 | |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-49 eventually twice | Separated by Texas |
.svg){kind=small} | I-55 | |
.svg){kind=small} | I-57 | Proposed extension into Arkansas |
.svg){kind=small} | I-69 | Proposed extension into Arkansas |
.svg){kind=small} | I-130 | Former proposal |
.svg){kind=small} | I-430 | |
.svg){kind=small} | I-440 | |
.svg){kind=small} | I-530 | |
.svg){kind=small} | I-540 | |
.svg){kind=small} | I-555 | |
.svg){kind=small} | I-630 | |
.svg){kind=small} | I-730 | Former proposed number for AR 226, had I-30 been extended to the northeastern part of the state |
.svg){kind=small} | US 49 | |
.svg){kind=small} | US 59 | |
.svg){kind=small} | US 61 | |
.svg){kind=small} | US 62 | |
.svg){kind=small} | US 63 | |
.svg){kind=small} | US 64 | |
.svg){kind=small} | US 65 | |
.svg){kind=small} | US 67 | |
 | US 67W | Decommissioned |
| US 67W | Decommissioned |
 | US 67W | Decommissioned |
 | US 67E | Decommissioned |
| US 67E | Decommissioned |
 | US 67E | Decommissioned |
.svg){kind=small} | US 70 | |
.svg){kind=small} | US 71 twice | Separated by Texas |
.svg){kind=small} | US 78 | Cancelled extension into Arkansas, but has since been extended |
.svg){kind=small} | US 79 | |
.svg){kind=small} | US 82 | |
.svg){kind=small} | US 165 | |
.svg){kind=small} | US 167 | |
.svg){kind=small} | US 270 | |
.svg){kind=small} | US 271 | |
.svg){kind=small} | US 278 | |
.svg){kind=small} | US 371 | |
.svg){kind=small} | US 412 | |
.svg){kind=small} | US 425 |
California
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-5 | |
.svg){kind=small} | I-5W | Decommissioned |
.svg){kind=small} | I-5E | Decommissioned |
.svg){kind=small} | I-7 | Proposed |
.svg){kind=small} | I-8 | |
.svg){kind=small} | I-9 | Proposed |
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-15 | |
 | I-15 Temp. | Decommissioned |
| I-15 Temp. | Decommissioned |
| I-15 Temp. | Decommissioned |
| I-15 Temp. | Decommissioned |
.svg){kind=small} | I-15E | Decommissioned |
| I-15E Temp. | Decommissioned |
.svg){kind=small} | I-15W | Decommissioned |
| I-15W Temp. | Decommissioned |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-66 | Former number for a proposed renumbering of I-10 and I-15 |
| I-66 | Former proposal |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-105 | Decommissioned |
.svg){kind=small} | I-105 | |
.svg){kind=small} | I-110 | Decommissioned |
.svg){kind=small} | I-110 | |
.svg){kind=small} | I-180 | Former proposed number for the Richmond–San Rafael Bridge |
.svg){kind=small} | I-205 | |
.svg){kind=small} | I-210 | |
.svg){kind=small} | I-215 | |
.svg){kind=small} | I-238 | |
.svg){kind=small} | I-280 | |
.svg){kind=small} | I-305 | Unsigned |
.svg){kind=small} | I-380 | |
.svg){kind=small} | I-405 | |
.svg){kind=small} | I-480 | Decommissioned |
.svg){kind=small} | I-505 | |
.svg){kind=small} | I-580 | |
.svg){kind=small} | I-605 | |
.svg){kind=small} | I-680 | |
.svg){kind=small} | I-710 | |
.svg){kind=small} | I-780 | |
.svg){kind=small} | I-805 | |
.svg){kind=small} | I-880 | Decommissioned |
.svg){kind=small} | I-880 | |
.svg){kind=small} | I-905 | Proposed |
.svg){kind=small} | I-980 | |
.svg){kind=small} | US 6 | |
.svg){kind=small} | US 40 | Decommissioned in California |
.svg){kind=small} | US 42 | Former proposed number for what became US 48 |
 | US 48 | Decommissioned |
| US 48N | Former proposal | |
.svg){kind=small} | US 50 | |
 | US 60 | Former proposed number for what became US 66 |
.svg){kind=small} | US 60 | Decommissioned in California |
| US 62 | Cancelled extension into California |
.svg){kind=small} | US 64 | Cancelled extension into California |
.svg){kind=small} | US 66 | Decommissioned |
.svg){kind=small} | US 70 | Decommissioned in California |
.svg){kind=small} | US 80 | Decommissioned in California |
| US 90 | Cancelled extension into California |
.svg){kind=small} | US 91 | Decommissioned in California |
.svg){kind=small} | US 95 | |
.svg){kind=small} | US 97 | |
.svg){kind=small} | US 99 | Decommissioned |
 | US 99W | Decommissioned |
.svg){kind=small} | US 99W | Decommissioned |
 | US 99E | Decommissioned |
.svg){kind=small} | US 99E | Decommissioned |
.svg){kind=small} | US 101 | |
 | US 101W | Decommissioned |
| US 101W | Decommissioned |
 | US 101E | Decommissioned |
| US 101E | Decommissioned |
.svg){kind=small} | US 199 | |
.svg){kind=small} | US 299 | Decommissioned |
.svg){kind=small} | US 395 twice | Separated by Nevada |
.svg){kind=small} | US 399 | Decommissioned |
.svg){kind=small} | US 466 | Decommissioned |
Colorado
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-25 | |
| I-25E | Former proposed number for what is now I-225 & I-270 | |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-76 | |
.svg){kind=small} | I-80S | Decommissioned |
.svg){kind=small} | I-225 | |
.svg){kind=small} | I-270 | |
 | I-425 | Former proposed number for what is now I-270 |
_Metric.svg){kind=small} | I-470 | Former proposed number for SH 470, E-470, & the Northwest Parkway |
 | US 6 | |
 | US 24 | |
 | US 34 | |
 | US 36 | |
 | US 38 | Decommissioned |
 | US 40 | |
.svg){kind=small} | US 40S | Decommissioned; shield |
.svg){kind=small} | US 40N | Decommissioned |
.svg){kind=small} | US 46 | Former proposal; shield |
 | US 50 | |
.svg){kind=small} | US 78 | Cancelled extension into Colorado |
| US 84 | |
 | US 85 | |
 | US 87 | |
.svg){kind=small} | US 136 | Possible cancelled extension into Colorado |
 | US 138 | |
| US 160 | |
.svg){kind=small} | US 164 | Decommissioned |
 | US 285 | Decommissioned |
 | US 285 | |
 | US 287 | |
.svg){kind=small} | US 340 | Former proposal |
 | US 350 | |
 | US 385 | |
 | US 400 | |
 | US 450 | Decommissioned |
 | US 491 | |
 | US 550 | |
.svg){kind=small} | US 560 | Former proposal |
.svg){kind=small} | US 650 | Former proposal |
 | US 666 | Decommissioned |
| US 789 | Former proposal |
Connecticut
| Shield | Highway | Notes |
|---|---|---|
 | I-84 | |
 | I-86 | Decommissioned |
.svg){kind=small} | I-87 | Former proposed number for what is now I-684; it was a cancelled portion of I-87. |
.svg){kind=small} | I-89 | Former proposal |
 | I-91 | |
 | I-95 | |
 | I-284 | Former proposal |
 | I-291 | |
 | I-384 | |
.svg){kind=small} | I-395 | |
 | I-484 | Former proposed number for the Conland–Whitehead Highway |
_Metric.svg){kind=small} | I-491 | Former proposed number for Route 3 |
.svg){kind=small} | I-495 | Cancelled extension into Connecticut |
 | I-684 | |
 | I-691 | |
| I-891 | Proposed | |
 | US 1 | |
 | US 5 | |
| US 6 | |
 | US 7 | |
 | US 44 | |
 | US 202 |
Delaware
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-99 | Former proposal |
.svg){kind=small} | I-101 | Proposed |
.svg){kind=small} | I-195 | Former proposed number for part of I-95 |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-395 | Former proposed number for part of I-95 |
.svg){kind=small} | I-495 | |
.svg){kind=small} | I-595 | Former proposed number for part of I-95 |
.svg){kind=small} | I-895 | Temporary designation for I-95 while that highway was being reconstructed (1979-1980) |
 | US 9 | |
 | US 13 | |
| US 40 | |
 | US 113 | |
 | US 122 | Decommissioned |
| US 202 | |
 | US 301 | |
 | US 301S | Decommissioned |
 | US 301N | Decommissioned |
District of Columbia
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-66 | |
.svg){kind=small} | I-66N | Former proposed number for what would later be re-proposed as I-266 |
.svg){kind=small} | I-70S | Cancelled extension into the District of Columbia |
.svg){kind=small} | I-95 | |
 | I-195 | Proposed |
.svg){kind=small} | I-266 | Former proposed number for what was Canal Road & Whitehurst Freeway |
.svg){kind=small} | I-270 | Cancelled extension into the District of Columbia |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-395 | |
.svg){kind=small} | I-495 | |
.svg){kind=small} | I-695 | |
| US 1 | |
| US 29 | |
| US 50 | |
 | US 211 | Decommissioned in the District of Columbia |
 | US 240 | Decommissioned |
Florida
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-4 | |
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-75 | |
.svg){kind=small} | I-75E | Former proposed number for what would later be proposed as I-75W |
.svg){kind=small} | I-75W | Former proposed number for part of what is now I-75 |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-110 | |
.svg){kind=small} | I-175 | |
 | I-185 | Cancelled extension into Florida |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-275 | |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-375 | |
.svg){kind=small} | I-395 | |
.svg){kind=small} | I-595 | |
.svg){kind=small} | I-795 | Proposed |
| US 1 | |
.svg){kind=small} | US 5 | Cancelled extension into Florida |
 | US 17 | |
 | US 19 | |
 | US 23 | |
 | US 27 | |
| US 29 | |
.svg){kind=small} | US 33 | Former proposal |
 | US 41 | |
| US 90 | |
 | US 92 | |
 | US 94 | Decommissioned |
| US 98 | |
 | US 129 | |
 | US 192 | |
 | US 221 | |
| US 231 | |
| US 301 | |
 | US 319 | |
.svg){kind=small} | US 331 | Decommissioned |
| US 331 | |
.svg){kind=small} | US 431 | Cancelled extension into Florida |
 | US 441 | |
 | US 541 | Decommissioned |
Georgia
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-3 | Proposed |
| I-14 | Proposed extension into Georgia |
.svg){kind=small} | I-16 | |
.svg){kind=small} | I-20 | |
.svg){kind=small} | I-24 | |
.svg){kind=small} | I-59 | |
.svg){kind=small} | I-75 | |
.svg){kind=small} | I-85 | |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-175 | Former proposal |
.svg){kind=small} | I-185 | |
.svg){kind=small} | I-285 | |
.svg){kind=small} | I-420 | Former proposed number for part of SR 166 |
.svg){kind=small} | I-475 | |
.svg){kind=small} | I-485 | Former proposal |
.svg){kind=small} | I-516 | |
.svg){kind=small} | I-520 | |
.svg){kind=small} | I-575 | |
.svg){kind=small} | I-675 | |
.svg){kind=small} | I-985 | |
| US 1 | |
| US 5 | Cancelled extension into Georgia |
| US 11 | |
| US 13 | Cancelled extension into Georgia |
| US 17 | |
| US 19 | |
| US 23 | |
 | US 25 | |
| US 27 | |
| US 29 | |
| US 33 | Former proposal |
| US 41 | |
.svg){kind=small} | US 41W | Decommissioned |
.svg){kind=small} | US 41E | Decommissioned |
.svg){kind=small} | US 41E | Decommissioned |
 | US 76 | |
| US 78 | |
 | US 78S | Decommissioned |
 | US 78N | Decommissioned |
| US 80 | |
| US 82 | |
| US 84 | |
 | US 123 | |
| US 129 | |
.svg){kind=small} | US 270 | Former proposal |
| US 278 | |
| US 280 | |
| US 301 | |
| US 319 | |
 | US 341 | |
 | US 378 | |
| US 411 | |
| US 441 |
Hawaii
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | H-1 | |
 | H-1A | Former proposal |
.svg){kind=small} | H-2 | |
.svg){kind=small} | H-3 | |
.svg){kind=small} | H-4 | Former proposal |
.svg){kind=small} | H-101 | Former proposed number for what would become H-201 |
.svg){kind=small} | H-201 |
Idaho
| Shield | Highway | Notes |
|---|---|---|
| I-11 | Possible extension into Idaho |
 | I-15 | shield |
.svg){kind=small} | I-15W | Decommissioned; shield |
.svg){kind=small} | I-80N | Decommissioned; shield |
.svg){kind=small} | I-82 | Former proposed number for the renumbering of I-80N |
.svg){kind=small} | I-82N | Former proposed number for what became I-15W |
| I-84 | shield |
| I-86 | shield |
 | I-90 | |
 | I-180N | Former proposed number for what is now I-184 |
.svg){kind=small} | I-184 | |
 | US-2 | |
.svg){kind=small} | US-8 | Cancelled extension into Idaho |
.svg){kind=small} | US-10 | Decommissioned in Idaho |
 | US-12 | |
.svg){kind=small} | US-14 | Cancelled extension into Idaho |
 | US-20 | |
 | US-26 | |
 | US-30 | |
.svg){kind=small} | US-30S | Decommissioned |
.svg){kind=small} | US-30N | Decommissioned |
| US-30N | Decommissioned |
.svg){kind=small} | US-84 | Cancelled extension into Idaho |
| US-89 | |
 | US-91 | |
| US-93 | |
| US-95 was twice | Separated by Washington, which was decommissioned |
.svg){kind=small} | US-95W | Decommissioned |
.svg){kind=small} | US-95E | Decommissioned |
| US-136 | Cancelled extension into Idaho |
.svg){kind=small} | US-191 | Decommissioned in Idaho |
 | US-195 was twice | Separated by Washington; northern segment in Idaho was decommissioned. |
.svg){kind=small} | US-287 | Decommissioned in Idaho |
.svg){kind=small} | US-410 | Decommissioned |
.svg){kind=small} | US-530 | Former proposed number for either US-30 and/or US-30S |
.svg){kind=small} | US-630 | Decommissioned |
Illinois
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-24 | |
.svg){kind=small} | I-37 | Former proposed number for part of I-155 |
.svg){kind=small} | I-39 | shield |
 | I-41 | |
.svg){kind=small} | I-53 | Former proposal |
.svg){kind=small} | I-55 | shield |
.svg){kind=small} | I-57 | |
.svg){kind=small} | I-64 | |
| I-66 | Former number for a proposed renumbering of I-55 |
| I-66 | Former proposal |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-72 | shield |
.svg){kind=small} | I-74 | |
.svg){kind=small} | I-80 | shield |
.svg){kind=small} | I-88 | |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-94 | shield |
.svg){kind=small} | I-155 | |
.svg){kind=small} | I-172 | Decommissioned |
| I-172 | |
.svg){kind=small} | I-174 | Former number for a proposed renumbering of I-74 |
.svg){kind=small} | I-180 | |
.svg){kind=small} | I-190 | |
.svg){kind=small} | I-255 | |
.svg){kind=small} | I-270 | shield |
.svg){kind=small} | I-274 | Former number for a proposed renumbering of I-80 |
.svg){kind=small} | I-280 | |
.svg){kind=small} | I-290 | shield |
.svg){kind=small} | I-294 | |
.svg){kind=small} | I-355 | |
.svg){kind=small} | I-455 | Former proposed number for what is now I-355 |
.svg){kind=small} | I-474 | |
.svg){kind=small} | I-490 | Proposed |
.svg){kind=small} | I-494 | Former proposed number for Lake Shore Drive |
| I-494 | Former proposed number for the Crosstown Expressway |
.svg){kind=small} | I-694 | Former proposed number for Lake Shore Drive |
 | I-870 | Former number for a proposed renumbering of I-270 |
| US 6 | |
| US 12 | |
 | US 14 | |
| US 20 | |
| US 24 | |
.svg){kind=small} | US 26 | Cancelled extension into Illinois |
| US 30 | |
 | US 32 | Decommissioned |
| US 33 | Former proposal |
| US 34 | |
| US 36 | |
| US 40 | |
| US 41 | |
| US 45 | |
| US 50 | |
 | US 51 | |
 | US 52 | |
 | US 54 | |
.svg){kind=small} | US 58 | Cancelled extension into Illinois |
 | US 60 | Former proposed number for what became US 66 |
| US 60 | |
| US 60E | Former proposed number for the current US 60 | |
| US 60N | Former proposed number for US 66 | |
| US 61 | Temporarily routed into Illinois when the Eagle Point Bridge was closed |
| US 62 | Former proposed number for what is now US 60 |
 | US 62 | |
.svg){kind=small} | US 66 | Decommissioned |
 | US 67 | |
 | US 124 | Decommissioned |
 | US 136 | |
 | US 150 | |
.svg){kind=small} | US 151 | Temporarily routed into Illinois when the Eagle Point Bridge was closed |
.svg){kind=small} | US 251 | Former proposal |
 | US 330 | Decommissioned |
 | US 430 | Decommissioned |
.svg){kind=small} | US 460 | Decommissioned in Illinois |
Indiana
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-64 | |
.svg){kind=small} | I-65 | |
.svg){kind=small} | I-67 | Former proposal |
.svg){kind=small} | I-67 | Proposed |
| I-67 | Proposed |
.svg){kind=small} | I-69 | |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-74 | shield |
.svg){kind=small} | I-80 | shield |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-94 | |
.svg){kind=small} | I-164 | Decommissioned, but may still exist as an unsigned highway. |
.svg){kind=small} | I-165 | Former proposal |
.svg){kind=small} | I-265 | |
.svg){kind=small} | I-275 | shield |
.svg){kind=small} | I-294 | Decommissioned in Indiana; later, a proposal to re-extend it into the state was cancelled. |
.svg){kind=small} | I-465 | |
.svg){kind=small} | I-469 | |
.svg){kind=small} | I-665 | Former proposed number for what would become I-865 |
.svg){kind=small} | I-865 | |
.svg){kind=small} | US 4 | Former proposal |
| US 6 | |
| US 12 | |
| US 20 | |
| US 24 | |
| US 26 | Cancelled extension into Indiana |
| US 27 | |
| US 30 | |
| US 31 | |
 | US 31W | Decommissioned in Indiana |
 | US 31E | Decommissioned in Indiana |
 | US 33 | Former proposal |
 | US 33 | |
 | US 35 | |
| US 36 | |
 | US 37 | Decommissioned |
| US 40 | |
| US 41 | |
| US 50 | |
| US 52 | |
 | US 110 | Former proposal |
.svg){kind=small} | US 112 | Decommissioned |
 | US 112S | Decommissioned |
 | US 131 | |
| US 136 | |
| US 150 | |
 | US 152 | Decommissioned |
 | US 224 | |
| US 231 | |
 | US 421 | |
 | US 460 | Decommissioned in Indiana |
 | US 641 | Decommissioned in Indiana |
Iowa
| Shield | Highway | Notes | |
|---|---|---|---|
.svg){kind=small} | I-29 | ||
.svg){kind=small} | I-35 | ||
.svg){kind=small} | I-74 | ||
.svg){kind=small} | I-80 | ||
.svg){kind=small} | I-80N | Decommissioned | |
.svg){kind=small} | I-129 | ||
| I-174 | Former number for a proposed renumbering of I-74 | |
.svg){kind=small} | I-235 | ||
.svg){kind=small} | I-274 | Former number for a proposed renumbering of I-80 | |
.svg){kind=small} | I-280 | Decommissioned | |
| I-280 | ||
 | I-335 | Proposed | |
.svg){kind=small} | I-380 | ||
.svg){kind=small} | I-480 | ||
.svg){kind=small} | I-680 | ||
.svg){kind=small} | I-880 | ||
.svg){kind=small} | US 6 | ||
.svg){kind=small} | US 18 | ||
.svg){kind=small} | US 20 | ||
| US 26 | Cancelled extension into Iowa | |
.svg){kind=small} | US 30 | ||
.svg){kind=small} | US 30S | Decommissioned | |
 | US 32 | Decommissioned | |
.svg){kind=small} | US 34 | ||
.svg){kind=small} | US 52 | ||
.svg){kind=small} | US 53 | Former proposed extension into Iowa | |
 | US 55 | Decommissioned | |
| US 55 | Former proposal | |
.svg){kind=small} | US 59 | ||
.svg){kind=small} | US 61 | ||
.svg){kind=small} | US 63 | ||
.svg){kind=small} | US 65 | ||
.svg){kind=small} | US 67 | ||
.svg){kind=small} | US 69 | ||
.svg){kind=small} | US 71 | ||
.svg){kind=small} | US 73 | Cancelled extension into Iowa | |
.svg){kind=small} | US 75 | ||
.svg){kind=small} | US 77 | ||
.svg){kind=small} | US 136 | ||
.svg){kind=small} | US 151 | ||
 | US 161 | Decommissioned | |
 | US 163 | Decommissioned | |
.svg){kind=small} | US 169 | ||
.svg){kind=small} | US 218 | ||
.svg){kind=small} | US 275 |
Kansas
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-35 | |
.svg){kind=small} | I-35W | Decommissioned |
| I-66 | Former proposal |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-135 | |
.svg){kind=small} | I-235 | |
.svg){kind=small} | I-335 | |
.svg){kind=small} | I-435 | |
.svg){kind=small} | I-470 | |
.svg){kind=small} | I-635 | |
.svg){kind=small} | I-670 | |
| US-24 | |
| US-36 | |
| US-40 | |
 | US-40S | Decommissioned |
 | US-40N | Decommissioned |
| US-50 | |
.svg){kind=small} | US-50S | Decommissioned |
.svg){kind=small} | US-50N | Decommissioned |
| US-54 | |
| US-55 | Former proposal |
 | US-56 | |
 | US-59 | |
.svg){kind=small} | US-60 | Former proposed number for what became US-66 |
 | US-66 | Decommissioned |
 | US-69 | |
 | US-73 | |
 | US-73W | Decommissioned |
 | US-73E | Decommissioned |
 | US-75 | |
 | US-77 | |
| US-78 | Cancelled extension into Kansas |
 | US-81 | |
 | US-83 | |
 | US-154 | Decommissioned |
.svg){kind=small} | US-155 | Former proposed number for what became US-156 |
 | US-156 | Decommissioned |
 | US-159 | |
| US-160 | |
 | US-166 | |
 | US-169 | |
 | US-177 | |
 | US-183 | |
 | US-250 | Former proposal |
 | US-270 | |
 | US-281 | |
 | US-283 | |
 | US-340 | Former proposal |
 | US-383 | Decommissioned |
| US-400 |
Kentucky
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-24 | |
.svg){kind=small} | I-64 | |
.svg){kind=small} | I-65 | shield |
| I-66 | Former proposal |
| I-67 | Proposed |
.svg){kind=small} | I-69 | |
.svg){kind=small} | I-71 | |
.svg){kind=small} | I-74 | Possible extension into Kentucky |
.svg){kind=small} | I-75 | shield |
 | I-165 | |
 | I-169 | |
.svg){kind=small} | I-175 | Former proposal |
.svg){kind=small} | I-264 | |
.svg){kind=small} | I-265 | |
.svg){kind=small} | I-275 | |
 | I-365 | Proposed |
.svg){kind=small} | I-369 | Former proposed number for what is now proposed as I-569 |
.svg){kind=small} | I-471 | |
.svg){kind=small} | I-565 | Former proposed number for what is now I-165 |
.svg){kind=small} | I-569 | Proposed |
| US 23 | |
| US 25 | |
 | US 25W | |
 | US 25E | |
| US 27 | |
| US 31 | |
| US 31W | |
| US 31E | |
| US 33 | Former proposal |
 | US 37 | Decommissioned |
| US 41 | |
| US 41W | Decommissioned |
| US 41E | Decommissioned |
 | US 42 | |
.svg){kind=small} | US 43 | Decommissioned in Kentucky |
| US 45 | |
| US 51 | |
| US 52 twice | Separated by West Virginia |
| US 58 | Cancelled extension into Kentucky |
| US 60 | |
| US 60E | Former proposed number for US 60 | |
| US 62 | |
 | US 68 | |
 | US 79 | |
.svg){kind=small} | US 80 | Former proposal |
 | US 119 three times | Separated by West Virginia |
 | US 123 | Decommissioned |
 | US 127 | |
.svg){kind=small} | US 143 | Decommissioned |
| US 150 | |
 | US 168 | Decommissioned |
.svg){kind=small} | US 227 | Decommissioned |
| US 231 | |
.svg){kind=small} | US 241 | Decommissioned |
| US 421 | |
| US 431 | |
| US 460 | |
| US 641 |
Louisiana
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-12 | |
| I-14 | Possible extension into Louisiana |
.svg){kind=small} | I-20 | shield |
| I-29 | Former proposal |
.svg){kind=small} | I-49 | |
.svg){kind=small} | I-55 | |
.svg){kind=small} | I-59 | |
| I-69 | Proposed extension into Louisiana |
.svg){kind=small} | I-110 | |
.svg){kind=small} | I-210 | shield |
.svg){kind=small} | I-220 | shield |
.svg){kind=small} | I-310 | Former proposed number for the never-built Vieux Carré Riverfront Expressway |
| I-310 | |
.svg){kind=small} | I-410 | Former proposed number for the Airline Highway |
| I-410 | Former proposal |
| I-410 | Former proposal |
.svg){kind=small} | I-420 | Former proposal |
.svg){kind=small} | I-510 | |
.svg){kind=small} | I-610 | shield |
.svg){kind=small} | I-910 | Unsigned |
| US 11 | |
| US 13 | Cancelled extension into Louisiana |
| US 51 | |
 | US 61 | |
 | US 63 | |
 | US 65 | |
 | US 71 | |
| US 79 | |
| US 80 | |
| US 84 | |
| US 90 | |
.svg){kind=small} | US 98 | Cancelled extension into Louisiana |
 | US 165 | |
 | US 167 | |
 | US 171 | |
 | US 190 | |
 | US 371 | |
 | US 425 | |
.svg){kind=small} | US 427 | Former proposal |
Maine
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-92 | Former proposal |
| I-92 | Possible proposal |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-395 | |
.svg){kind=small} | I-495 | Unsigned |
| US 1 | |
| US 2 | |
 | US 201 | |
| US 202 | |
 | US 302 |
Maryland
| Shield | Highway | Notes |
|---|---|---|
_Metric.svg){kind=small} | I-68 | Former proposed number for what became the original I-595 |
.svg){kind=small} | I-68 | |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-70S | Former proposed number for what is now I-270 |
.svg){kind=small} | I-70N | Former proposed number for what is now I-70 |
.svg){kind=small} | I-81 | |
.svg){kind=small} | I-83 | |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-97 | |
 | I-99 | Former proposal |
| I-99 | Proposed extension into Maryland |
| I-101 | Proposed |
.svg){kind=small} | I-170 | Former proposal |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-197 | Former proposed number for part of the John Hanson Highway |
.svg){kind=small} | I-270 | |
| I-270Y | Unsigned |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-297 | Former proposed number for part of Maryland Route 3 |
.svg){kind=small} | I-370 | |
.svg){kind=small} | I-395 | |
| I-395A | Unsigned |
.svg){kind=small} | I-495 | |
| I-495X | Unsigned |
_Metric.svg){kind=small} | I-595 | Former proposal |
.svg){kind=small} | I-595 | Unsigned |
.svg){kind=small} | I-695 | |
.svg){kind=small} | I-795 | |
.svg){kind=small} | I-895 | |
| I-895A | Unsigned |
| I-895B | Unsigned |
| US 1 | |
| US 5 | Cancelled extension into Maryland |
| US 11 | |
| US 13 | |
| US 13A | Unsigned |
 | US 15 | |
| US 15A | Unsigned |
| US 15B | Unsigned |
| US 15G | Unsigned |
| US 29 | |
| US 40 | |
.svg){kind=small} | US 48 | Decommissioned |
| US 50 twice | Separated by Virginia and the District of Columbia |
| US 50PA | Unsigned |
| US 50QB | Unsigned |
| US 50QC | Unsigned |
| US 50UA | Unsigned |
| US 50WA | Unsigned |
| US 50WB | Unsigned |
| US 50WC | Unsigned |
.svg){kind=small} | US 111 | Decommissioned |
| US 113 | |
.svg){kind=small} | US 140 | Decommissioned |
.svg){kind=small} | US 213 | Decommissioned |
 | US 219 | |
| US 219A | Unsigned |
| US 219B | Unsigned |
| US 219C | Unsigned |
| US 219D | Unsigned |
| US 219E | Unsigned |
| US 219F | Unsigned |
| US 219G | Unsigned |
| US 219J | Unsigned |
 | US 220 | |
 | US 222 | |
.svg){kind=small} | US 240 | Decommissioned |
| US 301 | |
 | US 340 | |
 | US 522 | |
| US 522A | Decommissioned unsigned highway |
| US 522B | Unsigned |
| US 522C | Unsigned |
 | US 622 | Decommissioned |
Massachusetts
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-84 | |
.svg){kind=small} | I-86 | Decommissioned |
| I-89 | Former proposal |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-91 | |
.svg){kind=small} | I-93 | |
.svg){kind=small} | I-95 | shield |
.svg){kind=small} | I-95E | Former proposed number for what is now I-195 |
.svg){kind=small} | I-190 | |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-290 | |
.svg){kind=small} | I-291 | |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-391 | |
.svg){kind=small} | I-395 | |
.svg){kind=small} | I-495 | |
.svg){kind=small} | I-695 | Former proposal |
| I-895 | Former proposal |
| US 1 | |
 | US 3 | |
| US 5 | |
| US 6 | |
| US 7 | |
| US 20 | |
| US 44 | |
| US 202 |
Michigan
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-67 | Former proposal |
| I-67 | Former proposed number for what is now I-196 |
| I-67 | Proposed |
.svg){kind=small} | I-69 | |
| I-69 Temp. | Decommissioned |
.svg){kind=small} | I-73 | Former proposed number for what is now I-275 |
.svg){kind=small} | I-73 | Proposed extension into Michigan |
.svg){kind=small} | I-75 | shield |
.svg){kind=small} | I-77 | Cancelled in Michigan |
.svg){kind=small} | I-92 | Former proposed number for part of what is now I-94 |
.svg){kind=small} | I-94 | shield |
.svg){kind=small} | I-94N | Former proposed number for part of what is now I-96 |
.svg){kind=small} | I-96 | |
.svg){kind=small} | I-98 | Former proposed number for what is now I-696 |
.svg){kind=small} | I-175 | Former proposed number for what is now I-475 |
.svg){kind=small} | I-194 | |
.svg){kind=small} | I-196 | shield |
.svg){kind=small} | I-275 | Former proposed number for what is now I-675 |
.svg){kind=small} | I-275 | |
.svg){kind=small} | I-296 | Former proposed number for what is now I-496 |
| I-296 | Unsigned (previously signed) |
.svg){kind=small} | I-375 | |
.svg){kind=small} | I-475 | |
.svg){kind=small} | I-496 | |
.svg){kind=small} | I-675 | |
.svg){kind=small} | I-696 | shield |
| US 2 twice | Separated by Wisconsin |
 | US 8 | |
 | US 10 | |
| US 12 | |
 | US 16 | Decommissioned in Michigan |
| US 23 | |
| US 24 | |
.svg){kind=small} | US 25 | Decommissioned in Michigan |
| US 27 | Decommissioned in Michigan |
| US 31 | |
| US 33 | Decommissioned in Michigan |
| US 41 | |
| US 45 | |
 | US 102 | Decommissioned |
.svg){kind=small} | US 110 | Former proposal |
| US 112 | Decommissioned |
| US 127 | |
| US 131 | |
 | US 141 twice | Separated by Wisconsin |
 | US 223 |
Minnesota
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-35 | |
.svg){kind=small} | I-35E | |
.svg){kind=small} | I-35W | |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-94 | |
.svg){kind=small} | I-335 | Former proposal |
.svg){kind=small} | I-394 | |
.svg){kind=small} | I-494 | |
.svg){kind=small} | I-535 | |
.svg){kind=small} | I-694 | |
| US 2 | |
| US 8 | |
| US 10 | |
 | US 10N | Decommissioned |
 | US 10S | Decommissioned |
| US 12 | |
| US 14 | |
.svg){kind=small} | US 16 | Decommissioned in Minnesota |
| US 52 | |
 | US 53 | |
 | US 55 | Decommissioned |
 | US 59 | Decommissioned |
| US 59 | |
| US 61 | |
| US 63 | |
| US 65 | |
| US 69 | |
| US 71 | |
| US 73 | Cancelled extension into Minnesota |
| US 75 | |
| US 77 | Decommissioned in Minnesota |
.svg){kind=small} | US 169 | |
.svg){kind=small} | US 200 | Former proposal |
 | US 208 | Former proposed number for part of what was US 210 |
.svg){kind=small} | US 210 | Decommissioned |
.svg){kind=small} | US 212 | |
.svg){kind=small} | US 218 | |
 | US 371 | Decommissioned |
Mississippi
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-10 | |
| I-14 | Proposed extension into Mississippi |
.svg){kind=small} | I-20 | |
.svg){kind=small} | I-22 | |
.svg){kind=small} | I-55 | |
.svg){kind=small} | I-59 | |
.svg){kind=small} | I-61 | Proposed |
.svg){kind=small} | I-69 | |
.svg){kind=small} | I-110 | |
.svg){kind=small} | I-210 | Former proposed number for what is now proposed as I-310 |
.svg){kind=small} | I-220 | |
.svg){kind=small} | I-269 | |
.svg){kind=small} | I-310 | Proposed |
.svg){kind=small} | I-755 | Proposed |
| US 11 | |
| US 13 | Cancelled extension into Mississippi |
| US 45 | |
 | US 49 twice | Separated by the current US 49W & US 49E |
 | US 49W | Decommissioned |
 | US 49W | |
 | US 49E | Decommissioned |
 | US 49E | |
| US 51 | |
| US 61 | |
| US 65 | Decommissioned in Mississippi |
| US 72 | |
| US 78 | |
| US 80 | |
| US 82 | |
| US 84 | |
.svg){kind=small} | US 86 | Former proposed number for what is now part of US 84 |
| US 90 | |
| US 98 | |
| US 278 | |
| US 425 |
Missouri
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-24 | Cancelled extension into Missouri |
 | I-24W | Former proposed number for what is now I-155 |
.svg){kind=small} | I-29 | |
 | I-30 | Cancelled extension into Missouri |
.svg){kind=small} | I-35 | |
.svg){kind=small} | I-44 | |
.svg){kind=small} | I-49 | |
.svg){kind=small} | I-55 | |
.svg){kind=small} | I-57 | |
.svg){kind=small} | I-64 | |
| I-66 | Former number for a proposed renumbering of what was I-44, I-55, I-64, I-70, & US 40 |
| I-66 | Former proposal |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-72 | |
.svg){kind=small} | I-144 | Former proposed number for part of what is now I-270 |
.svg){kind=small} | I-155 | |
.svg){kind=small} | I-170 | |
.svg){kind=small} | I-229 | |
.svg){kind=small} | I-244 | Former proposed number for part of what is now I-270 |
.svg){kind=small} | I-255 | |
.svg){kind=small} | I-270 | |
.svg){kind=small} | I-364 | Possible former proposed number for what is now Route 364 |
.svg){kind=small} | I-370 | Former proposed number for what is now Route 370 |
.svg){kind=small} | I-435 | |
.svg){kind=small} | I-470 | |
.svg){kind=small} | I-635 | |
.svg){kind=small} | I-670 | |
| I-755 | Former proposal |
.svg){kind=small} | US 24 | |
| US 36 | |
| US 40 | |
| US 50 | |
| US 54 | |
.svg){kind=small} | US 55 | Former proposal |
| US 56 | |
| US 59 | |
 | US 60 | Former proposed number for what would become US 66 |
| US 60 | |
| US 60E | Former proposed number for the current US 60 | |
| US 60N | Former proposed number for US 66 | |
| US 61 | |
 | US 62 | Former proposed number for what is now US 60 |
| US 62 | |
| US 63 | |
| US 65 | |
| US 66 | Decommissioned |
| US 67 | |
| US 69 | |
| US 71 | |
.svg){kind=small} | US 73 | Decommissioned in Missouri |
| US 78 | Cancelled extension into Missouri |
| US 80 | Former proposal |
| US 136 | |
| US 159 | |
| US 160 | |
| US 166 | |
| US 169 | |
.svg){kind=small} | US 271 | Cancelled extension into Missouri |
 | US 275 | |
| US 400 | |
 | US 412 | |
| US 460 | Decommissioned in Missouri |
Montana
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-15 | |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-94 | |
.svg){kind=small} | I-115 | |
.svg){kind=small} | I-315 | Unsigned |
| US 2 | |
| US 8 | Cancelled extension into Montana |
| US 10 | Decommissioned in Montana |
.svg){kind=small} | US 10S | Decommissioned |
.svg){kind=small} | US 10N | Decommissioned |
| US 12 | Was previously proposed in two parts before rerouting |
| US 20 | |
| US 87 | |
 | US 87W | Decommissioned |
 | US 87E | Decommissioned |
| US 89 | |
.svg){kind=small} | US 91 | Decommissioned in Montana |
| US 93 | |
| US 191 twice | Separated by Wyoming |
| US 200 | Former proposal |
 | US 212 twice | Separated by Wyoming |
| US 287 | |
 | US 310 | |
.svg){kind=small} | US 312 twice | Decommissioned; separated by Wyoming |
| US 789 | Former proposal |
Nebraska
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-76 | |
.svg){kind=small} | I-80 | shield |
.svg){kind=small} | I-80S | Decommissioned |
.svg){kind=small} | I-129 | |
.svg){kind=small} | I-180 | |
.svg){kind=small} | I-280 | Decommissioned |
.svg){kind=small} | I-480 | shield |
.svg){kind=small} | I-580 | Decommissioned |
.svg){kind=small} | I-680 | |
| US-6 | |
| US-20 | |
| US-26 | |
 | US-26N | Decommissioned |
| US-30 | |
 | US-30S | Decommissioned |
.svg){kind=small} | US-32 | Decommissioned |
| US-34 | |
 | US-38 | Decommissioned |
| US-73 | |
 | US-73W | Decommissioned |
 | US-73E | Decommissioned |
| US-75 | |
| US-77 | |
| US-81 | |
| US-83 | |
| US-136 | |
| US-138 | |
| US-159 | |
| US-183 | |
| US-275 | |
| US-281 | |
| US-283 | |
 | US-383 | Decommissioned |
| US-385 |
Nevada
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-11 | |
.svg){kind=small} | I-15 | |
| I-66 | Former proposal |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-215 | |
.svg){kind=small} | I-515 | |
.svg){kind=small} | I-580 | |
| US 6 | |
.svg){kind=small} | US 40 | Decommissioned in Nevada |
| US 50 | |
| US 91 | Decommissioned in Nevada |
| US 93 | |
| US 95 | |
| US 140 | Former proposal |
 | US 395 | |
.svg){kind=small} | US 466 | Decommissioned |
New Hampshire
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-89 | |
 | I-92 | Former proposal |
| I-92 | Former proposal |
| I-92 | Proposed |
.svg){kind=small} | I-93 | shield |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-193 | Decommissioned |
.svg){kind=small} | I-293 | |
.svg){kind=small} | I-393 | |
| US 1 | |
| US 2 | |
| US 3 | |
 | US 4 | |
 | US 5 | Decommissioned in New Hampshire |
 | US 202 | |
 | US 302 |
New Jersey
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-76 | |
.svg){kind=small} | I-78 | |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-80S | Decommissioned |
| I-82 | Former proposed number |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-278 | |
.svg){kind=small} | I-280 | |
.svg){kind=small} | I-287 | |
.svg){kind=small} | I-295 | |
| I-395 | Decommissioned |
.svg){kind=small} | I-495 | Cancelled extension into New Jersey |
.svg){kind=small} | I-676 | |
.svg){kind=small} | I-680 | Decommissioned |
.svg){kind=small} | I-695 | Former proposed number for part of what is now I-95 |
.svg){kind=small} | I-895 | Former proposal |
| US 1 | |
| US 9 | |
 | US 9W | |
 | US 22 | |
| US 30 | |
| US 40 | |
 | US 46 | |
 | US 122 | Decommissioned |
 | US 130 | |
 | US 140 | Former proposal |
| US 202 | |
 | US 206 | |
 | US 322 | |
.svg){kind=small} | US 611 | Decommissioned |
New Mexico
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-25 | |
.svg){kind=small} | I-40 | |
| I-66 | Former number for a proposed renumbering of I-40 |
| I-66 | Former proposal |
| US 54 | |
| US 55 | Former proposal |
| US 56 | |
 | US 60 | Former proposed number for what would become US 66 |
| US 60 | |
| US 62 | |
| US 64 | |
| US 66 | Decommissioned |
| US 70 | |
| US 80 | Decommissioned in New Mexico |
| US 82 | |
| US 84 | |
| US 85 | |
| US 87 | |
| US 90 | Cancelled extension into New Mexico |
.svg){kind=small} | US 114 | Former proposal |
| US 160 | |
| US 164 | Decommissioned |
 | US 180 | Decommissioned |
| US 180 twice | Separated by Texas |
.svg){kind=small} | US 260 | Decommissioned |
| US 285 | |
 | US 360 | Former proposal |
 | US 366 (1927–1932) | Decommissioned |
| US 366 (1932–1939) | Decommissioned |
 | US 370 | Former proposal |
 | US 380 | |
 | US 385 | Decommissioned |
.svg){kind=small} | US 393 | Former proposed number for the renumbering of US 666 |
| US 412 | |
 | US 460 | Former proposal |
 | US 466 | Former proposal |
 | US 470 | Decommissioned |
 | US 485 | Decommissioned |
| US 491 | |
| US 550 | |
 | US 560 | Former proposal |
 | US 566 | Decommissioned |
.svg){kind=small} | US 570 | Former proposed number |
| US 666 | Decommissioned |
| US 789 | Former proposal |
New York
| Shield | Highway | Notes |
|---|---|---|
 | I-78 | |
 | I-81 | shield |
| I-82 | Former proposed number |
 | I-83 | Possible cancelled extension into New York |
| I-84 | |
| I-86 twice | Separated by Pennsylvania |
.svg){kind=small} | I-87 | |
.svg){kind=small} | I-88 | |
| I-90 | |
.svg){kind=small} | I-90N | Decommissioned |
| I-92 | Former proposal |
| I-92 | Former proposal |
| I-92 | Proposed |
| I-95 | shield |
.svg){kind=small} | I-98 | Proposed |
_Metric.svg){kind=small} | I-99 | |
 | I-187 | Former proposed number for what would become I-487 |
.svg){kind=small} | I-190 | |
.svg){kind=small} | I-278 | |
.svg){kind=small} | I-281 | Decommissioned |
.svg){kind=small} | I-287 | shield |
.svg){kind=small} | I-290 | |
.svg){kind=small} | I-295 | |
 | I-386 | Former proposal |
.svg){kind=small} | I-390 | |
.svg){kind=small} | I-478 | Former proposed number for what was the Lower Manhattan Expressway & the Manhattan Bridge |
| I-478 | Former proposed number for what was the Grand Central Parkway |
.svg){kind=small} | I-478 | Unsigned |
.svg){kind=small} | I-481 | |
.svg){kind=small} | I-487 | Decommissioned |
| I-487 | Former proposal |
.svg){kind=small} | I-490 | |
.svg){kind=small} | I-495 | |
.svg){kind=small} | I-587 | |
.svg){kind=small} | I-590 | |
.svg){kind=small} | I-678 | |
.svg){kind=small} | I-684 twice | Separated by Connecticut; shield |
.svg){kind=small} | I-687 | Former proposal |
.svg){kind=small} | I-690 | |
.svg){kind=small} | I-695 | |
.svg){kind=small} | I-781 | |
.svg){kind=small} | I-787 | |
.svg){kind=small} | I-790 | |
.svg){kind=small} | I-878 | Decommissioned |
.svg){kind=small} | I-878 | Unsigned |
.svg){kind=small} | I-890 | |
.svg){kind=small} | I-895 | Decommissioned |
.svg){kind=small} | I-990 | |
| US 1 | |
| US 2 | |
| US 4 | |
| US 5 | Cancelled extension into New York |
| US 6 | |
 | US 6N | Decommissioned |
 | US 7 | Decommissioned in New York |
| US 9 | |
 | US 9E | Decommissioned |
| US 9W | |
| US 11 | |
| US 11N | Former proposal |
| US 15 | |
| US 20 | |
| US 44 | |
| US 62 | |
.svg){kind=small} | US 104 | Decommissioned |
 | US 109 | Decommissioned |
.svg){kind=small} | US 202 | |
.svg){kind=small} | US 209 | |
.svg){kind=small} | US 219 | |
.svg){kind=small} | US 220 | Decommissioned in New York |
North Carolina
| Shield | Highway | Notes |
|---|---|---|
| I-3 | Possible extension into North Carolina |
 | I-13 | Former proposed number for part of US 13 & US 17 |
 | I-20 | Cancelled extension into North Carolina |
.svg){kind=small} | I-26 | |
 | I-36 | Former proposed number for what is now proposed as I-42 |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-42 | Proposed |
 | I-44 | Former proposed number for what is now I-87 |
 | I-46 | Former proposed number for what is now proposed as I-42 |
 | I-50 | Former proposed number for what is now I-87 |
| I-50 | Former proposed number for what is now proposed as I-42 |
 | I-56 | Former proposed number for what is now I-87 |
.svg){kind=small} | I-73 | |
.svg){kind=small} | I-74 | |
.svg){kind=small} | I-77 | |
| I-83 | Cancelled extension into North Carolina |
.svg){kind=small} | I-85 | |
| I-85 Temp. | Decommissioned |
 | I-87 | |
 | I-89 | Former proposed number for what is now I-87 |
.svg){kind=small} | I-95 | |
| I-99 | Former proposal |
| I-101 | Proposed |
.svg){kind=small} | I-140 | Former proposed number for what is now I-240 |
 | I-140 | Former proposed number for part of US 1 |
.svg){kind=small} | I-140 | |
| I-185 | Former proposed number for what is now I-285 |
| I-195 | Former proposed number for what is now I-295 |
.svg){kind=small} | I-240 | |
| I-274 | Proposed |
.svg){kind=small} | I-277 | |
 | I-285 | |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-440 | |
.svg){kind=small} | I-485 | |
.svg){kind=small} | I-495 | Decommissioned |
.svg){kind=small} | I-540 | |
 | I-587 | |
 | I-640 | Former proposed number for what is now I-540 |
| I-685 | Proposed |
.svg){kind=small} | I-785 | |
.svg){kind=small} | I-795 | |
.svg){kind=small} | I-840 | |
 | I-885 | |
| US 1 | |
| US 5 | Cancelled extension into North Carolina |
| US 13 | |
| US 15 | |
| US 17 | |
| US 19 | |
 | US 19W | |
 | US 19E | |
 | US 21 | |
| US 23 | |
| US 25 | |
| US 29 | |
| US 33 | Former proposal |
| US 52 | |
| US 64 | |
| US 64E | Former proposal |
| US 64W | Former proposal |
| US 70 | |
 | US 74 | |
| US 76 | |
 | US 117 | Decommissioned |
 | US 117 | |
 | US 121 | Decommissioned |
| US 129 | |
 | US 158 | |
 | US 170 | Decommissioned |
 | US 176 | |
 | US 178 | |
 | US 217 | Decommissioned |
| US 220 | |
| US 221 | |
 | US 258 | |
 | US 264 | |
 | US 270 | Former proposal |
 | US 276 | |
| US 301 | |
 | US 311 | |
.svg){kind=small} | US 313 | Former proposal |
.svg){kind=small} | US 319 | Cancelled extension into North Carolina |
 | US 321 | |
 | US 401 | Decommissioned |
 | US 401 | |
 | US 411 | Decommissioned |
| US 421 | |
| US 441 | |
 | US 501 | |
 | US 521 | |
 | US 601 | |
 | US 701 | |
.svg){kind=small} | US 901 | Former proposal |
North Dakota
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-29 | |
.svg){kind=small} | I-31 | Former proposed number for part of what is now I-29 |
.svg){kind=small} | I-94 | |
.svg){kind=small} | I-194 | Unsigned |
| US 2 | |
 | US 2S | Decommissioned |
 | US 2N | Decommissioned |
| US 8 | Cancelled extension into North Dakota |
| US 10 | |
| US 12 | |
| US 52 | |
.svg){kind=small} | US 59 | Decommissioned in North Dakota |
| US 81 | |
| US 83 | |
| US 85 | |
| US 200 | Former proposal |
| US 281 | |
 | US 281S | Decommissioned |
.svg){kind=small} | US 385 | Cancelled extension into North Dakota |
Ohio
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-70 | |
| I-70A | Decommissioned |
.svg){kind=small} | I-71 | |
| I-73 | Proposed extension into Ohio |
.svg){kind=small} | I-74 | |
.svg){kind=small} | I-75 | |
.svg){kind=small} | I-76 | |
.svg){kind=small} | I-77 | |
.svg){kind=small} | I-79 | Former proposed number for what is now I-77 |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-80N | Former proposed number for what is now part of I-90, part of I-480, & the entirety of I-490 |
.svg){kind=small} | I-80S | Decommissioned |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-177 | Former proposed number for part of what is now I-77 |
.svg){kind=small} | I-270 | |
.svg){kind=small} | I-271 | |
.svg){kind=small} | I-275 | |
.svg){kind=small} | I-277 | |
.svg){kind=small} | I-280 | |
.svg){kind=small} | I-290 | Former proposed number for what is now parts of I-490 & I-271 |
 | I-380 | Proposed |
.svg){kind=small} | I-470 | |
.svg){kind=small} | I-471 | |
.svg){kind=small} | I-475 | shield |
.svg){kind=small} | I-480 | |
 | I-480N | Unsigned |
.svg){kind=small} | I-490 | |
.svg){kind=small} | I-670 | |
.svg){kind=small} | I-675 | |
.svg){kind=small} | I-680 | |
| US 4 | Former proposal |
| US 6 | |
| US 20 | |
.svg){kind=small} | US 20S | Decommissioned |
 | US 20N | Decommissioned |
| US 21 | Decommissioned in Ohio |
| US 22 | |
| US 23 | |
| US 24 | |
| US 25 | Decommissioned in Ohio |
| US 27 | |
| US 30 | |
| US 30S | Decommissioned |
| US 30N | Decommissioned |
 | US 33 | Former proposal |
| US 33 | |
| US 35 | |
| US 36 | |
| US 40 | |
| US 42 | |
| US 50 | |
.svg){kind=small} | US 50S | Decommissioned |
.svg){kind=small} | US 50N | Decommissioned |
| US 52 | |
| US 62 | |
| US 68 | |
| US 127 | |
| US 223 | |
| US 224 | |
 | US 250 | |
| US 322 | |
 | US 422 |
Oklahoma
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-35 | |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-44 | |
| I-66 | Former number for a proposed renumbering of I-40 and I-44 |
| I-66 | Former proposal |
.svg){kind=small} | I-235 | |
.svg){kind=small} | I-240 | |
.svg){kind=small} | I-244 | |
.svg){kind=small} | I-335 | Proposed |
.svg){kind=small} | I-344 | Proposed |
.svg){kind=small} | I-440 | Decommissioned |
.svg){kind=small} | I-444 | Unsigned |
| US-54 | |
| US-55 | Former proposal |
| US-56 | |
| US-59 | |
 | US-60 | Former proposed number for what would become US-66 |
| US-60 | |
| US-62 | |
| US-64 | |
| US-66 | Decommissioned |
| US-69 | |
| US-70 | |
.svg){kind=small} | US-70N | Decommissioned |
 | US-73 | Decommissioned in Oklahoma |
| US-75 | |
| US-77 | |
| US-81 | |
| US-83 | |
 | US-164 | Decommissioned |
| US-169 | |
| US-177 | |
| US-183 | |
 | US-259 | |
.svg){kind=small} | US-260 | Former proposal; shield |
 | US-266 | |
| US-270 | |
 | US-271 | |
 | US-277 | |
| US-281 | |
| US-283 | |
| US-287 | |
 | US-377 | |
| US-385 | |
| US-412 |
Oregon
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-5 | |
| I-11 | Possible extension into Oregon |
| I-80N | Decommissioned |
_Metric.svg){kind=small} | I-82 | Former proposed number for the renumbering of I-80N |
.svg){kind=small} | I-82 | |
.svg){kind=small} | I-84 | |
.svg){kind=small} | I-105 | |
.svg){kind=small} | I-205 | |
_Metric.svg){kind=small} | I-305 | Former proposed number for part of what is now OR 99E Bus. |
.svg){kind=small} | I-405 | |
_Metric.svg){kind=small} | I-505 | Former proposal |
.svg){kind=small} | US 12 | Cancelled extension into Oregon |
| US 14 | Cancelled extension into Oregon |
| US 14N | Former proposal |
| US 20 | |
| US 26 | |
 | US 28 | Decommissioned |
| US 30 | |
 | US 30S | Decommissioned |
 | US 30N | Decommissioned |
| US 84 | Cancelled extension into Oregon |
| US 95 | |
 | US 97 | |
 | US 99 | Decommissioned |
 | US 99W | Decommissioned |
 | US 99E | Decommissioned |
 | US 101 | |
 | US 126 | Decommissioned |
| US 136 | Cancelled extension into Oregon |
| US 140 | Former proposal |
 | US 197 | |
 | US 199 | |
.svg){kind=small} | US 320 | Former proposal |
| US 395 | |
.svg){kind=small} | US 420 | Former proposal |
 | US 630 | Decommissioned |
 | US 730 |
Pennsylvania
| Shield | Highway | Notes |
|---|---|---|
| I-67 | Proposed |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-70S | Decommissioned |
.svg){kind=small} | I-76 | |
.svg){kind=small} | I-78 | |
.svg){kind=small} | I-79 | |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-80S | Decommissioned |
.svg){kind=small} | I-80N | Former proposed number for what is now I-78 |
.svg){kind=small} | I-81 | |
.svg){kind=small} | I-81E | Decommissioned |
.svg){kind=small} | I-81S | Former proposed number for what would become I-81E |
.svg){kind=small} | I-82 | Former proposed number for what would later be proposed as I-81S |
.svg){kind=small} | I-83 | |
.svg){kind=small} | I-84 | |
.svg){kind=small} | I-86 twice | Separated by New York |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-95 | |
.svg){kind=small} | I-99 | |
.svg){kind=small} | I-176 | |
.svg){kind=small} | I-178 | Former proposal |
.svg){kind=small} | I-179 | Former proposed number for what is now part of I-79 |
.svg){kind=small} | I-180 | Decommissioned |
.svg){kind=small} | I-180 | |
| I-195 | Cancelled extension into Pennsylvania |
.svg){kind=small} | I-276 | |
.svg){kind=small} | I-279 | |
.svg){kind=small} | I-280 | Decommissioned |
.svg){kind=small} | I-283 | |
 | I-295 | |
.svg){kind=small} | I-376 | |
.svg){kind=small} | I-378 | Decommissioned |
.svg){kind=small} | I-380 | |
.svg){kind=small} | I-395 | Decommissioned |
.svg){kind=small} | I-476 | |
.svg){kind=small} | I-479 | Decommissioned |
.svg){kind=small} | I-480 | Decommissioned |
.svg){kind=small} | I-495 | Former proposed number for what would become I-480 |
| I-495 | Southbound lanes of I-495 actually begin in Pennsylvania. |
.svg){kind=small} | I-576 | Proposed |
.svg){kind=small} | I-579 | |
.svg){kind=small} | I-676 | |
.svg){kind=small} | I-680 | Decommissioned |
.svg){kind=small} | I-695 | Former proposal |
.svg){kind=small} | I-876 | Decommissioned |
.svg){kind=small} | I-895 | Former proposal |
.svg){kind=small} | I-895 | Former proposal |
| US 1 | |
| US 5 | Cancelled extension into Pennsylvania |
| US 6 | |
 | US 6N | Decommissioned |
 | US 6N | |
| US 11 | |
| US 13 | |
| US 15 | |
| US 19 | |
| US 20 | |
| US 22 | |
| US 30 | |
| US 40 | |
 | US 46 | Decommissioned in Pennsylvania |
| US 62 | |
.svg){kind=small} | US 106 | Decommissioned |
.svg){kind=small} | US 111 | Decommissioned |
| US 119 | |
.svg){kind=small} | US 120 | Decommissioned |
 | US 122 | Decommissioned |
.svg){kind=small} | US 122 | Decommissioned |
 | US 140 | Decommissioned |
| US 202 | |
| US 206 | |
 | US 209 | |
| US 219 | |
| US 220 | |
| US 222 | |
| US 224 | |
 | US 230 | Decommissioned |
.svg){kind=small} | US 309 | Decommissioned |
| US 322 | |
| US 422 | Split into two parts |
| US 522 | |
.svg){kind=small} | US 611 twice | Decommissioned; separated by New Jersey |
 | US 622 | Decommissioned |
 | US 711 | Decommissioned |
Puerto Rico
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | PRI-1 | Unsigned |
.svg){kind=small} | PRI-2 | Unsigned |
.svg){kind=small} | PRI-3 | Unsigned |
Rhode Island
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-84 | Cancelled extension into Rhode Island |
| I-95 | shield |
.svg){kind=small} | I-95E | Former proposed number for what is now I-195 |
_Metric.svg){kind=small} | I-184 | Former proposed number for what was Route 10 |
.svg){kind=small} | I-195 | |
.svg){kind=small} | I-295 | |
.svg){kind=small} | I-495 | Cancelled extension into Rhode Island |
.svg){kind=small} | I-895 | Former proposal |
| US 1 | |
| US 6 | |
| US 44 |
South Carolina
| Shield | Highway | Notes |
|---|---|---|
| I-3 | Possible extension into South Carolina |
| I-14 | Possible extension into South Carolina |
.svg){kind=small} | I-20 | |
.svg){kind=small} | I-26 | |
| I-73 | Proposed extension into South Carolina |
| I-74 | Proposed extension into South Carolina |
.svg){kind=small} | I-77 | |
| I-77 Temp. | Decommissioned |
.svg){kind=small} | I-85 | |
.svg){kind=small} | I-95 | |
| I-99 | Former proposal |
.svg){kind=small} | I-126 | |
| I-174 | Former proposed number for what is now the Robert Edge Parkway |
.svg){kind=small} | I-185 | |
_Metric.svg){kind=small} | I-326 | Decommissioned unsigned highway |
.svg){kind=small} | I-385 | |
.svg){kind=small} | I-520 | |
.svg){kind=small} | I-526 | |
.svg){kind=small} | I-585 | |
| I-685 | Former proposed number for I-85 Bus. |
| US 1 | |
| US 5 | Cancelled extension into South Carolina |
| US 13 | Cancelled extension into South Carolina |
| US 15 | |
| US 17 | |
| US 21 | |
| US 25 | |
| US 29 | |
| US 33 | Former proposal |
| US 52 | |
| US 76 | |
| US 78 | |
 | US 117 | Decommissioned in South Carolina |
| US 123 | |
.svg){kind=small} | US 158 | Cancelled extension into South Carolina |
| US 176 | |
| US 178 | |
 | US 217 | Decommissioned |
.svg){kind=small} | US 220 | Cancelled extension into South Carolina |
| US 221 | |
| US 276 | |
| US 278 | |
| US 301 | |
| US 313 | Former proposal |
| US 319 | Cancelled extension into South Carolina |
| US 321 | |
| US 378 | |
.svg){kind=small} | US 401 | Decommissioned |
| US 401 | |
| US 501 | |
| US 521 | |
| US 601 | |
| US 701 | |
| US 901 | Former proposal |
South Dakota
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-29 | |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-190 | |
.svg){kind=small} | I-229 | |
| US 8 | Cancelled extension into South Dakota |
| US 12 | |
| US 14 | |
 | US 16 | |
 | US 18 | |
 | US 77 | Decommissioned in South Dakota |
| US 81 | |
| US 83 | |
| US 85 | |
 | US 85E | Decommissioned |
| US 183 | |
| US 212 | |
 | US 216 | Decommissioned |
| US 281 | |
| US 385 |
Tennessee
| Shield | Highway | Notes |
|---|---|---|
| I-3 | Proposed |
.svg){kind=small} | I-22 | Cancelled in Tennessee |
.svg){kind=small} | I-24 twice | Separated by Georgia; shield |
| I-24W | Former proposed number for what is now I-155; had no connection with I-24 |
.svg){kind=small} | I-26 | |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-55 | |
.svg){kind=small} | I-65 | |
| I-69 | Proposed |
.svg){kind=small} | I-75 | |
.svg){kind=small} | I-81 | |
.svg){kind=small} | I-124 | Unsigned |
 | I-126 | Former proposed number for part of the renumbering of I-181 |
.svg){kind=small} | I-140 | |
.svg){kind=small} | I-155 | |
.svg){kind=small} | I-169 | Proposed |
 | I-175 | Former proposal |
.svg){kind=small} | I-181 | Decommissioned |
.svg){kind=small} | I-240 | shield |
.svg){kind=small} | I-255 | Former proposed number for what is now I-40 |
.svg){kind=small} | I-265 | Decommissioned |
.svg){kind=small} | I-269 | |
.svg){kind=small} | I-275 | |
 | I-326 | Proposed |
.svg){kind=small} | I-440 | |
.svg){kind=small} | I-475 | Former proposal |
.svg){kind=small} | I-640 | |
.svg){kind=small} | I-840 | Original proposal was cancelled, but then re-designated from SR 840 |
| US 11 | |
 | US 11W | |
 | US 11E | |
| US 19 | |
| US 19W | |
| US 19E | |
| US 23 | |
| US 25 | |
| US 25W | |
| US 25E | |
| US 27 | |
| US 31 | |
| US 31W | |
| US 31E | |
| US 33 | Former proposal |
.svg){kind=small} | US 37 | Decommissioned |
| US 41 | |
| US 41W | Decommissioned |
| US 41W | Decommissioned |
| US 41E | Decommissioned |
| US 41E | Decommissioned |
| US 43 | |
| US 45 twice | Seperated by US 45W & US 45E |
 | US 45W | |
 | US 45E | |
| US 51 | |
 | US 58 | |
| US 61 | |
| US 63 | Decommissioned in Tennessee |
| US 64 | |
| US 70 | |
 | US 70S | |
 | US 70N | |
| US 72 twice | Separated by Mississippi & Alabama |
| US 74 | |
| US 76 | |
| US 78 | |
| US 79 | |
| US 127 | |
| US 129 | |
.svg){kind=small} | US 143 | Decommissioned |
| US 231 | |
| US 241 | Decommissioned |
| US 241 | Decommissioned |
| US 270 | Decommissioned |
| US 321 | |
.svg){kind=small} | US 411 | Decommissioned |
| US 411 | |
| US 412 | |
| US 421 | |
| US 431 | |
| US 441 | |
.svg){kind=small} | US 511 | Decommissioned |
| US 641 |
Texas
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-2 | |
.svg){kind=small} | I-10 | |
.svg){kind=small} | I-14 | |
.svg){kind=small} | I-20 | |
.svg){kind=small} | I-27 | |
.svg){kind=small} | I-30 | |
.svg){kind=small} | I-35 | |
.svg){kind=small} | I-35E | |
.svg){kind=small} | I-35W | |
.svg){kind=small} | I-37 | |
.svg){kind=small} | I-40 | |
.svg){kind=small} | I-44 | |
.svg){kind=small} | I-45 | |
 | I-49 | Exit ramps cross state line. |
| I-66 | Former number for a proposed renumbering of I-40 |
.svg){kind=small} | I-69 | |
.svg){kind=small} | I-69W | |
.svg){kind=small} | I-69C | |
.svg){kind=small} | I-69E | |
.svg){kind=small} | I-110 | |
.svg){kind=small} | I-169 | |
| I-214 | Proposed |
| I-227 | Proposed | |
| I-327 | Proposed | |
.svg){kind=small} | I-345 | Unsigned |
.svg){kind=small} | I-369 | |
.svg){kind=small} | I-410 | |
.svg){kind=small} | I-610 | |
.svg){kind=small} | I-635 | |
.svg){kind=small} | I-820 | |
.svg){kind=small} | US 11 | Cancelled extension into Texas |
| US 54 twice | Separated by New Mexico |
 | US 57 | |
| US 59 | |
 | US 60 | Former proposed number for what would become US 66 |
| US 60 | |
| US 62 twice | Separated by New Mexico |
| US 66 | Decommissioned |
| US 67 | |
| US 69 | |
| US 70 | |
| US 71 | |
| US 75 | |
| US 77 | |
| US 79 | |
| US 80 | |
 | US 80N | Decommissioned |
| US 81 | |
| US 82 | |
| US 83 | |
| US 84 | |
| US 85 | |
| US 87 | |
| US 90 | |
 | US 96 | Decommissioned |
 | US 96 | |
| US 114 | Former proposal |
 | US 164 | Decommissioned |
 | US 175 | |
| US 180 twice | Separated by New Mexico |
 | US 181 | |
| US 183 | |
| US 190 | |
| US 259 | |
| US 271 | |
| US 277 | |
| US 281 | |
| US 283 | |
| US 285 | |
| US 287 | |
 | US 290 | |
.svg){kind=small} | US 360 twice | Former proposal; separated by New Mexico |
 | US 366 twice | Decommissioned; separated by New Mexico |
 | US 370 | Decommissioned |
| US 377 | |
| US 380 | |
 | US 385 | Decommissioned |
| US 385 | |
 | US 466 | Former proposal |
Utah
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-15 | |
| I-15 Temp. | Decommissioned |
 | I-17 | Proposed extension into Utah |
.svg){kind=small} | I-70 | |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-80N | Decommissioned |
.svg){kind=small} | I-82 | Former proposed number for what became I-80N |
.svg){kind=small} | I-82S | Former proposed number for part of what would become I-80N |
.svg){kind=small} | I-84 | |
.svg){kind=small} | I-215 | |
_Metric.svg){kind=small} | I-415 | Former proposed number for what is now I-215 |
| US-6 | |
.svg){kind=small} | US-24 | Cancelled extension into Utah |
 | US-30 | Decommissioned in Utah |
 | US-30S | Decommissioned |
.svg){kind=small} | US-34 | Cancelled extension into Utah |
| US-40 | |
| US-50 | |
| US-84 | Cancelled extension into Utah |
| US-89 | |
| US-91 | |
.svg){kind=small} | US-160 | Decommissioned in Utah |
.svg){kind=small} | US-163 | Former proposal |
| US-163 | |
 | US-189 | Decommissioned |
 | US-189 | |
| US-191 used to be twice | Separated by Wyoming, but the northern Utah segment was decommissioned. |
.svg){kind=small} | US-330 | Former proposal |
 | US-450 | Decommissioned |
| US-491 | |
 | US-530 | Decommissioned |
 | US-630 | Former proposal |
| US-666 | Decommissioned |
Vermont
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-89 | |
 | I-91 | |
| I-92 | Former proposal |
| I-92 | Former proposal |
| I-92 | Proposed |
.svg){kind=small} | I-93 | shield |
| I-98 | Proposed |
.svg){kind=small} | I-189 | |
.svg){kind=small} | I-289 | Former proposed number for what is now VT 289 |
| US 2 | |
| US 4 | |
| US 5 used to be twice | Separated by New Hampshire, which was decommissioned. |
| US 7 | |
| US 302 |
Virginia
| Shield | Highway | Notes |
|---|---|---|
| I-13 | Former proposed number for parts of US 13 and/or US 17 |
| I-44 | Former proposed number for what is now I-87's proposed extension into Virginia |
| I-50 | Former proposed number for what is now I-87's proposed extension into Virginia |
| I-56 | Former proposed number for what is now I-87's proposed extension into Virginia |
.svg){kind=small} | I-64 | |
| I-66 | Former proposal |
.svg){kind=small} | I-66 | shield |
| I-66N | Former proposed number for what would later be proposed as I-266 |
| I-73 | Proposed extension into Virginia |
| I-74 | Proposed extension into Virginia |
.svg){kind=small} | I-77 | |
.svg){kind=small} | I-81 | |
| I-83 | Cancelled extension into Virginia |
.svg){kind=small} | I-85 | shield |
.svg){kind=small} | I-87 | Proposed extension into Virginia |
| I-89 | Former proposed number for what is now I-87's proposed extension into Virginia |
.svg){kind=small} | I-95 | |
| I-99 | Former proposal |
| I-101 | Proposed |
.svg){kind=small} | I-164 | Former proposal |
.svg){kind=small} | I-195 | shield |
.svg){kind=small} | I-264 | |
.svg){kind=small} | I-266 | Former proposed number for Spout Run Parkway |
.svg){kind=small} | I-295 | shield |
.svg){kind=small} | I-381 | |
.svg){kind=small} | I-395 | |
.svg){kind=small} | I-464 | |
.svg){kind=small} | I-495 | shield |
.svg){kind=small} | I-564 | |
.svg){kind=small} | I-581 | |
.svg){kind=small} | I-595 | Former proposed number for part of US 1 |
.svg){kind=small} | I-664 | |
.svg){kind=small} | I-785 | Proposed extension into Virginia |
 | I-864 | Former proposal |
.svg){kind=small} | I-895 | Former proposed number for what is now SR 895, and may become I-895 in the future |
| US 1 | |
| US 5 | Cancelled extension into Virginia |
| US 11 | |
| US 11W | |
| US 11E | |
| US 13 | |
| US 15 | |
| US 17 | |
| US 19 | |
| US 21 | |
| US 23 | |
 | US 25E | Decommissioned in Virginia |
| US 29 | |
| US 33 | |
 | US 48 | |
| US 50 | |
| US 52 | |
| US 58 | |
| US 60 | |
| US 60E | Former proposed number for US 60 | |
 | US 117 | Decommissioned |
 | US 121 | Decommissioned |
 | US 121 | Proposed |
 | US 158 | Decommissioned in Virginia |
 | US 170 | Decommissioned |
 | US 211 | |
| US 219 | |
| US 220 | |
| US 221 | |
| US 250 | |
| US 258 | |
 | US 301 | Decommissioned |
| US 301 | |
| US 311 | Decommissioned in Virginia, but later re-extended into the state |
| US 319 | Cancelled extension into Virginia |
 | US 321 | Decommissioned in Virginia |
| US 340 twice | Separated by West Virginia |
 | US 360 | |
 | US 401 | Decommissioned |
 | US 411 | Decommissioned |
.svg){kind=small} | US 411 | Decommissioned in Virginia |
| US 421 used to be twice | Was separated by Tennessee, then was re-routed |
| US 460 twice | Separated by West Virginia |
| US 501 | |
 | US 511 | Decommissioned |
| US 522 |
Washington
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-5 | |
| I-11 | Possible extension into Washington |
.svg){kind=small} | I-82 | |
.svg){kind=small} | I-90 | |
 | I-105 | Former proposed number for what is now I-705 |
.svg){kind=small} | I-182 | |
.svg){kind=small} | I-205 | |
.svg){kind=small} | I-405 | |
_Metric.svg){kind=small} | I-605 | Former proposal |
| I-605 | Former proposal |
.svg){kind=small} | I-605 | Former proposal |
.svg){kind=small} | I-705 | |
| US 2 | |
| US 8 | Cancelled extension into Washington |
 | US 10 | Decommissioned in Washington |
| US 12 | Would have been twice, had the extension into Oregon been designated |
| US 95 | Decommissioned in Washington |
| US 97 | |
 | US 99 | Decommissioned |
| US 101 | |
| US 195 | |
| US 197 | |
.svg){kind=small} | US 295 | Decommissioned |
| US 395 | |
 | US 410 | Decommissioned |
| US 420 | Former proposal |
| US 730 | |
.svg){kind=small} | US 830 | Decommissioned |
West Virginia
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-64 | |
| I-66 | Former proposal |
.svg){kind=small} | I-68 | |
.svg){kind=small} | I-70 | |
| I-73 | Proposed extension into West Virginia |
| I-74 | Proposed extension into West Virginia |
.svg){kind=small} | I-77 | |
.svg){kind=small} | I-79 | |
.svg){kind=small} | I-81 | |
.svg){kind=small} | I-268 | Former proposed number for the West Run Expressway |
.svg){kind=small} | I-470 | |
| US 11 | |
| US 19 | |
.svg){kind=small} | US 21 | Decommissioned in West Virginia |
| US 22 | |
| US 30 | |
| US 33 | |
| US 35 | |
| US 40 | |
| US 48 | Decommissioned |
| US 48 | |
| US 50 twice | Separated by Maryland |
| US 50S | Decommissioned |
| US 50N | Decommissioned |
| US 52 three times | Separated by Kentucky each time |
| US 60 | |
| US 119 three times | Separated by Kentucky each time |
| US 121 | Proposed |
| US 219 | |
| US 220 | |
| US 250 | |
| US 340 | |
| US 460 | |
| US 522 |
Wisconsin
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-39 | |
.svg){kind=small} | I-41 | |
.svg){kind=small} | I-43 | |
 | I-47 | Former proposed number for what is now I-41 |
 | I-55 | Cancelled extension into Wisconsin |
.svg){kind=small} | I-57 | Former proposal |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-94 | |
.svg){kind=small} | I-535 | |
 | I-594 | Former proposed number for what is now I-41 |
| I-643 | Former proposed number for what is now I-41 | |
.svg){kind=small} | I-794 | shield |
.svg){kind=small} | I-894 | shield |
| US 2 twice | Separated by Michigan |
| US 8 | |
| US 10 | |
| US 12 | |
| US 14 | |
.svg){kind=small} | US 16 | Decommissioned in Wisconsin |
| US 18 | |
| US 41 | |
| US 45 | |
| US 51 | |
| US 53 | |
| US 55 | Former proposal |
| US 61 | |
| US 63 | |
 | US 110 | Decommissioned |
.svg){kind=small} | US 112 | Former proposal |
 | US 116 | Former proposal |
 | US 118 | Decommissioned |
.svg){kind=small} | US 141 twice | Separated by Michigan |
.svg){kind=small} | US 151 |
Wyoming
| Shield | Highway | Notes |
|---|---|---|
.svg){kind=small} | I-25 | |
.svg){kind=small} | I-80 | |
.svg){kind=small} | I-90 | |
.svg){kind=small} | I-180 | |
.svg){kind=small} | US 12 twice | Former proposed extension into Wyoming |
| US 14 | |
| US 16 | |
| US 18 | |
| US 20 | |
| US 26 | |
| US 30 | |
| US 30S | Decommissioned |
| US 30N | Decommissioned |
| US 85 | |
.svg){kind=small} | US 85E | Decommissioned |
| US 87 | |
.svg){kind=small} | US 87W | Decommissioned |
.svg){kind=small} | US 87E | Decommissioned |
| US 89 | |
.svg){kind=small} | US 116 | Decommissioned; shield |
.svg){kind=small} | US 120 | Former proposal |
| US 136 | Cancelled extension into Wyoming |
| US 163 twice | Former proposal; separated by US 163W & US 163E |
| US 163W | Former proposal |
| US 163E | Former proposal |
.svg){kind=small} | US 185 | Decommissioned; shield |
 | US 187 | Decommissioned |
| US 189 | |
| US 191 twice | Separated by a now-decommissioned segment in Utah, a now-decommissioned segment in Idaho, & Montana |
| US 212 three times | Separated by Montana |
.svg){kind=small} | US 216 | Decommissioned |
.svg){kind=small} | US 220 | Former proposal |
.svg){kind=small} | US 285 | Decommissioned |
| US 287 | |
| US 310 | |
| US 312 | Decommissioned |
 | US 320 | Decommissioned |
| US 330 | Former proposal |
| US 420 | Decommissioned; shield |
| US 530 | Former proposal |
| US 789 | Former proposal |
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