Highway Statistics Series
Highway Statistics 2024
FEDERAL-AID LENGTH - 2024
MILES BY MEASURED PAVEMENT ROUGHNESS / PRESENT SERVICEABILITY RATING
NOVEMBER 2025
| STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) / PRESENT SERVICEABILITY RATING (PSR)(1) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RURAL | URBAN | TOTAL | |||||||||||||
| NOT REPORTED(2) | IRI: <95 PSR: >3.4 |
IRI: 95-170 PSR: 2.6-3.4 |
IRI: >170 PSR: <2.6 |
TOTAL REPORTED | NOT REPORTED(2) | IRI: <95 PSR: >3.4 |
IRI: 95-170 PSR: 2.6-3.4 |
IRI: >170 PSR: <2.6 |
TOTAL REPORTED | NOT REPORTED(2) | IRI: <95 PSR: >3.4 |
IRI: 95-170 PSR: 2.6-3.4 |
IRI: >170 PSR: <2.6 |
TOTAL REPORTED | |
| Alabama | 878 | 10,807 | 5,998 | 1,116 | 17,921 | 278 | 3,292 | 3,018 | 1,387 | 7,697 | 1,157 | 14,100 | 9,016 | 2,503 | 25,619 |
| Alaska | 308 | 1,253 | 966 | 571 | 2,790 | 19 | 313 | 314 | 295 | 922 | 328 | 1,566 | 1,280 | 865 | 3,712 |
| Arizona | 103 | 3,354 | 3,230 | 1,067 | 7,652 | 1,787 | 1,248 | 3,125 | 2,880 | 7,253 | 1,891 | 4,602 | 6,355 | 3,947 | 14,904 |
| Arkansas | 3,221 | 6,782 | 3,769 | 2,647 | 13,198 | 1,421 | 796 | 1,145 | 2,079 | 4,021 | 4,643 | 7,577 | 4,914 | 4,727 | 17,218 |
| California | 104 | 5,361 | 5,157 | 4,655 | 15,173 | 363 | 2,394 | 4,289 | 4,565 | 11,248 | 467 | 7,755 | 9,446 | 9,219 | 26,421 |
| Colorado | 1 | 4,699 | 4,105 | 1,849 | 10,654 | - | 1,162 | 2,295 | 2,142 | 5,599 | 1 | 5,861 | 6,400 | 3,992 | 16,253 |
| Connecticut | - | 403 | 626 | 219 | 1,249 | 1 | 1,142 | 2,279 | 1,731 | 5,152 | 1 | 1,546 | 2,905 | 1,951 | 6,401 |
| Delaware | 14 | 349 | 227 | 29 | 605 | 23 | 353 | 370 | 233 | 956 | 37 | 702 | 597 | 261 | 1,561 |
| District of Columbia | - | - | - | - | - | 7 | 4 | 42 | 394 | 440 | 7 | 4 | 42 | 394 | 440 |
| Florida | 713 | 5,762 | 2,420 | 430 | 8,613 | 307 | 8,232 | 7,670 | 3,213 | 19,115 | 1,020 | 13,994 | 10,091 | 3,644 | 27,728 |
| Georgia | - | 12,417 | 7,517 | 1,079 | 21,014 | - | 4,811 | 4,383 | 1,328 | 10,521 | - | 17,228 | 11,900 | 2,407 | 31,535 |
| Hawaii | 2 | 161 | 217 | 164 | 541 | 8 | 193 | 379 | 449 | 1,021 | 9 | 353 | 596 | 613 | 1,562 |
| Idaho | 494 | 3,707 | 3,582 | 995 | 8,285 | 214 | 965 | 753 | 269 | 1,987 | 708 | 4,672 | 4,335 | 1,264 | 10,271 |
| Illinois | 1 | 11,264 | 5,068 | 953 | 17,286 | 10 | 3,209 | 5,391 | 5,150 | 13,750 | 11 | 14,474 | 10,459 | 6,103 | 31,036 |
| Indiana | 8,712 | 4,475 | 1,781 | 216 | 6,471 | 6,800 | 1,594 | 685 | 177 | 2,456 | 15,511 | 6,069 | 2,465 | 393 | 8,927 |
| Iowa | 16,636 | 2,451 | 1,273 | 230 | 3,954 | 3,108 | 464 | 504 | 203 | 1,171 | 19,744 | 2,915 | 1,776 | 434 | 5,125 |
| Kansas | 7,695 | 10,143 | 1,987 | 344 | 12,473 | 3,465 | 605 | 250 | 93 | 948 | 11,160 | 10,748 | 2,236 | 437 | 13,422 |
| Kentucky | 144 | 5,702 | 3,994 | 557 | 10,253 | 516 | 1,292 | 1,673 | 821 | 3,786 | 661 | 6,994 | 5,667 | 1,378 | 14,039 |
| Louisiana | 30 | 3,242 | 3,527 | 1,607 | 8,375 | 77 | 1,607 | 2,607 | 2,382 | 6,596 | 107 | 4,848 | 6,135 | 3,989 | 14,972 |
| Maine | 15 | 2,796 | 1,639 | 714 | 5,149 | 21 | 507 | 418 | 230 | 1,154 | 36 | 3,302 | 2,057 | 943 | 6,303 |
| Maryland | 5 | 1,553 | 876 | 239 | 2,668 | 22 | 1,345 | 1,928 | 2,172 | 5,445 | 27 | 2,898 | 2,804 | 2,411 | 8,112 |
| Massachusetts | 511 | 416 | 303 | 48 | 767 | 5,639 | 1,347 | 1,543 | 1,354 | 4,244 | 6,149 | 1,763 | 1,846 | 1,402 | 5,011 |
| Michigan | 138 | 11,201 | 6,469 | 3,206 | 20,875 | 661 | 3,773 | 3,846 | 4,135 | 11,755 | 799 | 14,974 | 10,315 | 7,341 | 32,629 |
| Minnesota | 14 | 15,220 | 7,970 | 2,091 | 25,280 | 262 | 3,179 | 3,419 | 1,298 | 7,895 | 276 | 18,399 | 11,388 | 3,389 | 33,176 |
| Mississippi | 1 | 5,447 | 7,302 | 4,986 | 17,736 | 48 | 1,013 | 1,431 | 1,589 | 4,032 | 49 | 6,460 | 8,733 | 6,575 | 21,768 |
| Missouri | 6 | 7,634 | 11,942 | 4,444 | 24,020 | 53 | 1,695 | 2,433 | 2,670 | 6,798 | 59 | 9,329 | 14,375 | 7,114 | 30,818 |
| Montana | - | 6,653 | 4,020 | 1,171 | 11,844 | - | 293 | 368 | 370 | 1,032 | - | 6,946 | 4,388 | 1,542 | 12,876 |
| Nebraska | 1,251 | 8,786 | 2,058 | 445 | 11,289 | 124 | 1,060 | 328 | 192 | 1,580 | 1,375 | 9,846 | 2,386 | 637 | 12,869 |
| Nevada | - | 2,801 | 1,617 | 406 | 4,823 | 0 | 872 | 1,061 | 721 | 2,654 | 0 | 3,673 | 2,678 | 1,126 | 7,477 |
| New Hampshire | - | 1,247 | 598 | 301 | 2,147 | 0 | 613 | 536 | 328 | 1,477 | 0 | 1,861 | 1,134 | 630 | 3,624 |
| New Jersey | 67 | 907 | 557 | 26 | 1,490 | 1 | 5,136 | 3,458 | 751 | 9,344 | 68 | 6,042 | 4,016 | 777 | 10,834 |
| New Mexico | 23 | 3,160 | 3,122 | 2,923 | 9,204 | 56 | 633 | 1,052 | 1,162 | 2,847 | 79 | 3,792 | 4,173 | 4,085 | 12,051 |
| New York | 196 | 7,061 | 3,962 | 662 | 11,685 | 466 | 3,574 | 6,045 | 6,120 | 15,739 | 662 | 10,634 | 10,007 | 6,782 | 27,424 |
| North Carolina | 121 | 6,180 | 7,664 | 998 | 14,842 | 50 | 2,123 | 4,544 | 1,771 | 8,438 | 171 | 8,303 | 12,208 | 2,769 | 23,280 |
| North Dakota | - | 9,420 | 3,408 | 583 | 13,412 | 7 | 218 | 379 | 405 | 1,002 | 7 | 9,638 | 3,787 | 988 | 14,413 |
| Ohio | 38 | 10,472 | 4,801 | 800 | 16,073 | 206 | 4,515 | 5,495 | 3,868 | 13,878 | 244 | 14,987 | 10,296 | 4,667 | 29,950 |
| Oklahoma | 11,266 | 6,609 | 4,924 | 1,165 | 12,699 | 3,958 | 723 | 491 | 209 | 1,422 | 15,224 | 7,332 | 5,415 | 1,374 | 14,122 |
| Oregon | 269 | 7,853 | 3,320 | 1,205 | 12,378 | 48 | 3,287 | 1,217 | 412 | 4,916 | 317 | 11,140 | 4,537 | 1,617 | 17,294 |
| Pennsylvania | 321 | 6,477 | 6,168 | 3,248 | 15,894 | 992 | 2,269 | 5,091 | 4,151 | 11,511 | 1,313 | 8,746 | 11,260 | 7,400 | 27,405 |
| Rhode Island | 2 | 114 | 116 | 79 | 308 | 32 | 225 | 514 | 675 | 1,413 | 35 | 338 | 630 | 753 | 1,721 |
| South Carolina | 11 | 5,851 | 5,744 | 2,437 | 14,032 | 28 | 2,058 | 3,350 | 1,745 | 7,153 | 39 | 7,909 | 9,094 | 4,182 | 21,185 |
| South Dakota | 443 | 7,314 | 4,921 | 1,164 | 13,399 | 136 | 161 | 325 | 390 | 876 | 579 | 7,475 | 5,246 | 1,554 | 14,275 |
| Tennessee | 269 | 4,325 | 1,254 | 171 | 5,749 | 317 | 2,003 | 654 | 191 | 2,848 | 587 | 6,328 | 1,907 | 361 | 8,596 |
| Texas | 544 | 22,681 | 25,451 | 6,743 | 54,875 | 1,068 | 7,577 | 12,477 | 13,042 | 33,097 | 1,611 | 30,258 | 37,929 | 19,785 | 87,972 |
| Utah | 44 | 3,153 | 1,897 | 399 | 5,450 | 37 | 812 | 1,009 | 1,063 | 2,884 | 81 | 3,966 | 2,907 | 1,462 | 8,334 |
| Vermont | 2 | 511 | 81 | 18 | 609 | 5 | 104 | 57 | 27 | 189 | 6 | 615 | 139 | 45 | 799 |
| Virginia | 41 | 4,175 | 6,384 | 2,298 | 12,857 | 196 | 1,888 | 4,295 | 2,308 | 8,491 | 236 | 6,063 | 10,678 | 4,606 | 21,347 |
| Washington | 111 | 3,116 | 5,765 | 2,945 | 11,826 | 258 | 1,351 | 3,206 | 3,264 | 7,821 | 369 | 4,467 | 8,970 | 6,208 | 19,646 |
| West Virginia | 36 | 2,330 | 4,131 | 2,144 | 8,605 | 4 | 457 | 773 | 631 | 1,861 | 40 | 2,787 | 4,904 | 2,775 | 10,466 |
| Wisconsin | 482 | 11,403 | 6,012 | 2,945 | 20,360 | 58 | 1,269 | 2,697 | 3,587 | 7,553 | 540 | 12,672 | 8,710 | 6,532 | 27,913 |
| Wyoming | 56 | 4,371 | 1,385 | 295 | 6,051 | 41 | 217 | 109 | 50 | 376 | 97 | 4,588 | 1,494 | 346 | 6,427 |
| U.S. Total | 55,340 | 283,569 | 201,304 | 70,028 | 554,901 | 33,200 | 89,973 | 115,722 | 90,670 | 296,365 | 88,540 | 373,542 | 317,026 | 160,698 | 851,266 |
| Puerto Rico | 33 | 33 | 118 | 634 | 784 | 80 | 81 | 380 | 1,858 | 2,320 | 113 | 114 | 498 | 2,492 | 3,104 |
| Grand Total | 55,372 | 283,602 | 201,422 | 70,662 | 555,686 | 33,280 | 90,054 | 116,102 | 92,528 | 298,685 | 88,652 | 373,656 | 317,524 | 163,190 | 854,370 |
(1) Data are reported as the International Roughness Index (IRI) in inches per mile. Reference: World Bank Technical Paper Number 46, 1986. Lower IRI represents smoother riding roadways. To obtain a comprehensive assessment of pavement condition, additional measures of pavement distress are needed. The "Present Serviceability Rating" (PSR) is a subjective, primarily ride-based system adapted from the "AASHO ROAD TESTS" conducted in the late 1950's and early 1960's. Reference: Highway Special Report 61E, 1962. The PSR values range from 0.1 to 5.0; higher PSR values represent smoother riding roadways.
(2) May include sections entirely on structures.