| iowa department of transportation grants | 0.62 | 0.8 | 2386 | 40 | 33 |
| department of transportation of iowa | 1.3 | 1 | 6314 | 36 | 85 |
| iowa department of transportation projects | 0.43 | 0.6 | 3153 | 42 | 15 |
| iowa department of transportation iowa | 0.49 | 1 | 4327 | 38 | 79 |
| state of iowa department of transportation | 0.97 | 0.3 | 3627 | 42 | 13 |
| state of iowa dept of transportation | 1.36 | 0.8 | 847 | 36 | 68 |
| iowa department of transportation formed | 1.13 | 0.4 | 8487 | 40 | 43 |
| department of transportation iowa dot | 1.38 | 0.3 | 9759 | 37 | 3 |
| department of transportation grants | 1.63 | 1 | 9066 | 35 | 90 |
| iowa dept. of transportation | 1.04 | 0.4 | 9046 | 28 | 91 |
| iowa department of transportation website | 0.74 | 0.6 | 9804 | 41 | 57 |
| iowa department of transportation logo | 0.17 | 0.9 | 6298 | 38 | 97 |
| dept of transportation grants | 1.48 | 0.1 | 5997 | 29 | 84 |
| idaho transportation department grants | 0.61 | 0.1 | 6247 | 38 | 50 |
| iowa dot funding guide | 1.98 | 1 | 4760 | 22 | 36 |
| iowa dot sign grant | 1.64 | 0.7 | 2557 | 19 | 79 |
