~48,000 miles
Public roads
Boise Airport (largest)
Major airports
I-15, I-84, I-86, I-90
Interstate highways
Historical data
Coming soon
Long-run charts for this indicator are on the way.
Compared to the United States
Coming soon
Side-by-side comparison of Idaho vs. the U.S. average.
National ranking
How states rank by bridges in poor condition.
| #1 | Kentucky | 0 |
| #2 | Louisiana | 0 |
| #3 | Alaska | 1% |
| #4 | Arizona | 1.3% |
| #5 | Georgia | 1.4% |
| #6 | Florida | 1.8% |
| #7 | Wisconsin | 2.8% |
| #8 | Washington | 2.8% |
| #9 | Virginia | 3.5% |
| #10 | Tennessee | 3.8% |
| #11 | Ohio | 4.2% |
| #12 | Oregon | 4.8% |
| #13 | New Jersey | 6.4% |
| #14 | Indiana | 6.5% |
| #15 | Montana | 7% |
| #16 | Illinois | 8% |
| #17 | Missouri | 8% |
| #18 | North Carolina | 9% |
| #19 | Massachusetts | 9.1% |
| #20 | Michigan | 10.6% |
| #21 | Delaware | 12% |
| #22 | Wyoming | 12 |
| #23 | Maine | 13% |
| #24 | Vermont | 15 |
| #25 | Rhode Island | 19% |
| #26 | South Dakota | 83 |
| #27 | New Hampshire | 380 |
| #28 | New Mexico | 30,000 |
| #29 | Utah | 45,700 |
| #30 | Colorado | 91,000 |
| #31 | Minnesota | 140,000 |
| #32 | Texas | 314,000 |
Overview
Idaho's transportation infrastructure includes roughly 48,000 miles of public roads and four interstate highways connecting the state, with Boise Airport serving as the state's busiest air travel hub.