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Highway Statistics Series

Highway Statistics 2024


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NATIONAL HIGHWAY SYSTEM LENGTH - 2024
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

November 2025

(THOUSANDS)

Table HM-47A
(Sheet 1 of 4)
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
INTERSTATE SYSTEM OTHER
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 56 15,953 1,684 733 295 185 96 52 69 19,067 86 9,263 4,574 887 437 219 90 50 51 15,572
Alaska 0 859 886 317 171 95 53 32 34 2,448 71 188 386 113 57 41 27 18 46 876
Arizona 22 13,554 5,440 1,647 779 492 255 172 271 22,610 41 2,815 3,550 1,730 1,163 714 352 264 367 10,956
Arkansas - 7,816 2,963 807 441 287 181 41 36 12,571 223 3,852 4,466 1,346 637 327 125 62 82 10,898
California - 16,010 16,038 5,636 3,577 1,902 1,183 765 1,113 46,225 160 11,508 19,736 8,433 4,611 2,412 1,214 696 954 49,565
Colorado - 1,748 6,445 2,416 1,007 522 244 198 294 12,873 - 2,588 5,608 2,421 1,278 627 286 188 225 13,220
Connecticut - 1,116 238 42 14 7 - - 1 1,418 - 504 820 353 160 91 38 27 20 2,013
Delaware - - - - - - - - - - 147 1,387 1,732 355 101 53 14 12 11 3,664
District of Columbia - - - - - - - - - - - - - - - - - - - -
Florida - 24,627 3,883 747 359 125 59 24 7 29,831 28 18,358 9,312 2,194 865 343 148 75 69 31,364
Georgia - 20,739 6,186 1,628 511 354 121 69 83 29,692 - 11,905 9,643 2,679 1,104 381 146 58 53 25,970
Hawaii - 19 33 65 76 57 14 6 0 270 15 53 329 195 74 48 26 14 25 765
Idaho 0 5,020 2,347 496 255 94 40 18 12 8,282 1 2,586 3,143 992 464 198 98 51 55 7,585
Illinois - 16,927 5,819 1,404 499 229 142 114 82 25,217 2 3,282 3,502 1,583 1,015 602 331 199 267 10,781
Indiana 94 12,162 6,898 2,472 1,348 740 361 255 264 24,500 42 7,181 4,932 1,562 784 461 186 71 50 15,226
Iowa - 5,259 6,140 1,671 592 319 133 67 72 14,252 15 3,593 5,838 3,544 2,151 1,125 484 273 250 17,257
Kansas 3 6,798 2,232 648 398 127 32 22 4 10,262 6 6,767 3,885 732 318 155 79 38 44 12,019
Kentucky 68 17,526 4,257 1,122 660 339 156 41 42 24,141 7 6,714 4,530 1,075 348 154 51 29 23 12,923
Louisiana 249 7,393 4,320 2,967 1,847 921 375 151 77 18,050 140 1,083 2,787 1,561 977 673 348 213 330 7,972
Maine 0 4,688 811 79 21 4 1 2 3 5,607 16 2,548 1,626 381 171 130 58 63 128 5,105
Maryland 1 2,373 2,163 583 161 133 46 32 37 5,528 13 4,683 3,662 658 212 118 54 35 75 9,497
Massachusetts - 1,355 377 59 30 26 16 5 12 1,880 0 489 827 246 137 71 41 18 19 1,848
Michigan 45 7,042 5,028 996 813 566 253 94 91 14,884 20 11,014 5,881 1,487 580 278 166 108 203 19,716
Minnesota - 4,817 3,995 623 179 59 21 6 9 9,711 - 7,699 6,623 2,517 1,170 532 212 117 102 18,972
Mississippi - 8,314 3,103 870 549 353 182 71 51 13,494 - 5,742 5,755 1,915 1,101 772 395 166 137 15,984
Missouri - 16,550 3,570 867 410 273 201 80 57 22,008 2 13,250 7,302 1,867 748 332 147 77 53 23,775
Montana - 4,142 2,892 475 221 86 41 12 35 7,904 - 2,913 3,281 958 388 179 72 34 35 7,861
Nebraska - 4,507 2,812 526 197 114 75 13 5 8,249 1 2,519 3,978 1,418 634 313 153 72 98 9,185
Nevada - 6,112 502 87 35 39 18 - 3 6,796 - 3,339 1,084 251 98 65 40 18 34 4,929
New Hampshire - 2,286 248 49 27 12 2 2 - 2,626 - 2,735 1,129 198 77 46 26 19 11 4,242
New Jersey - 1,119 1,450 337 115 47 30 14 - 3,111 - 1,745 1,198 423 154 74 48 28 60 3,730
New Mexico 2 9,045 2,804 1,083 677 478 270 172 191 14,720 0 3,042 3,393 1,082 545 306 138 85 115 8,706
New York 153 7,537 6,421 1,287 630 347 129 44 48 16,442 87 1,786 6,228 2,175 1,137 581 245 141 125 12,417
North Carolina 1 19,936 7,350 1,394 647 309 180 100 149 30,065 124 13,393 15,468 4,687 1,997 759 320 166 194 36,982
North Dakota - 2,450 1,510 305 121 29 13 6 10 4,445 - 2,602 2,529 533 191 77 27 13 22 5,994
Ohio - 15,762 6,041 1,359 654 373 105 74 64 24,433 4 8,188 5,910 1,968 1,010 427 192 104 74 17,874
Oklahoma 424 7,650 6,598 1,338 547 285 150 91 55 16,714 536 3,931 6,060 2,429 1,224 738 398 231 311 15,322
Oregon - 7,451 3,159 584 199 112 41 6 8 11,561 1 4,298 6,037 1,433 618 248 127 57 51 12,870
Pennsylvania - 15,837 8,753 2,050 892 468 248 179 227 28,654 - 5,040 8,836 3,093 1,452 706 357 219 275 19,977
Rhode Island - 522 113 29 14 - - - - 677 8 210 224 72 66 60 55 34 29 750
South Carolina 37 12,283 5,080 1,120 790 305 165 72 46 19,861 55 2,819 5,379 1,755 820 359 161 68 63 11,423
South Dakota - 3,386 2,928 257 90 43 13 10 3 6,729 11 1,984 2,297 674 269 121 53 36 32 5,467
Tennessee 116 23,623 2,027 515 285 161 83 36 33 26,762 1,610 6,816 4,793 1,340 658 345 185 119 165 14,422
Texas 497 22,351 23,217 5,956 1,969 813 329 155 90 54,878 758 26,925 27,773 10,017 4,403 2,007 766 392 341 72,624
Utah - 6,808 3,264 736 282 96 18 5 19 11,229 86 1,730 2,687 993 450 218 75 28 19 6,200
Vermont 3 2,384 758 124 54 21 9 6 6 3,361 5 774 771 190 92 45 26 9 30 1,937
Virginia - 11,131 8,063 1,285 456 188 100 42 67 21,333 - 3,405 9,445 3,020 1,138 465 149 68 52 17,742
Washington - 6,174 3,381 1,300 686 422 268 259 277 12,766 7 3,281 4,718 2,193 969 404 167 125 116 11,972
West Virginia 1 3,012 3,263 507 304 208 83 33 36 7,445 5 844 2,799 990 549 283 145 82 73 5,766
Wisconsin 10 8,517 5,198 2,511 898 497 162 73 54 17,910 57 8,732 6,195 4,215 2,520 1,389 617 313 359 24,340
Wyoming - 4,800 1,624 527 274 127 42 31 19 7,444 142 1,801 1,895 487 197 68 23 11 13 4,496
U.S. Total 1,782 427,490 204,313 54,634 26,054 13,787 6,739 3,754 4,164 740,935 4,530 253,905 254,553 87,419 42,317 21,140 9,684 5,398 6,337 680,753
Puerto Rico 9 133 675 337 237 191 202 134 208 2,117 0 3 99 120 171 144 88 80 173 878
Grand Total 1,791 427,623 204,988 54,971 26,291 13,979 6,940 3,888 4,372 743,052 4,531 253,908 254,652 87,540 42,488 21,284 9,771 5,478 6,510 681,631

NATIONAL HIGHWAY SYSTEM LENGTH - 2024
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

November 2025

(THOUSANDS)

Table HM-47A
(Sheet 2 of 4)
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
TOTAL RURAL NHS
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 142 25,215 6,258 1,620 732 404 187 102 120 34,638
Alaska 71 1,048 1,272 430 228 137 80 50 80 3,324
Arizona 63 16,369 8,990 3,377 1,942 1,207 607 436 638 33,567
Arkansas 223 11,668 7,429 2,153 1,079 614 306 104 117 23,469
California 160 27,518 35,774 14,069 8,189 4,313 2,397 1,461 2,068 95,790
Colorado - 4,336 12,053 4,837 2,284 1,149 530 386 519 26,094
Connecticut - 1,620 1,058 395 174 99 38 27 21 3,431
Delaware 147 1,387 1,732 355 101 53 14 12 11 3,664
District of Columbia - - - - - - - - - -
Florida 28 42,985 13,195 2,941 1,224 468 207 99 77 61,195
Georgia - 32,645 15,830 4,307 1,615 735 268 128 136 55,662
Hawaii 15 72 363 259 150 105 40 20 25 1,035
Idaho 1 7,606 5,490 1,488 718 292 138 69 67 15,867
Illinois 2 20,209 9,321 2,986 1,514 831 473 313 349 35,998
Indiana 136 19,342 11,829 4,034 2,132 1,202 547 326 314 39,726
Iowa 15 8,852 11,977 5,215 2,743 1,443 617 339 322 31,509
Kansas 9 13,566 6,118 1,380 716 282 111 60 49 22,281
Kentucky 75 24,239 8,787 2,196 1,007 492 207 70 65 37,065
Louisiana 388 8,477 7,106 4,528 2,824 1,593 724 364 407 26,022
Maine 16 7,235 2,436 460 192 134 59 65 130 10,711
Maryland 14 7,056 5,824 1,241 373 251 99 67 113 15,025
Massachusetts 0 1,845 1,203 305 167 97 57 23 30 3,727
Michigan 65 18,056 10,909 2,483 1,393 843 419 202 293 34,600
Minnesota - 12,516 10,618 3,139 1,350 591 234 123 112 28,683
Mississippi - 14,057 8,859 2,784 1,650 1,125 578 238 188 29,478
Missouri 2 29,800 10,872 2,734 1,158 605 348 158 110 45,783
Montana - 7,055 6,173 1,433 609 266 113 47 70 15,765
Nebraska 1 7,026 6,790 1,945 832 427 227 85 103 17,434
Nevada - 9,451 1,586 338 133 104 58 18 37 11,725
New Hampshire - 5,021 1,377 247 104 58 28 21 11 6,867
New Jersey - 2,864 2,648 760 269 121 78 42 60 6,842
New Mexico 2 12,088 6,196 2,165 1,222 784 408 257 306 23,426
New York 240 9,323 12,648 3,462 1,767 928 374 185 172 28,860
North Carolina 124 33,329 22,818 6,081 2,644 1,067 500 266 343 67,048
North Dakota - 5,052 4,039 837 312 106 40 19 33 10,438
Ohio 4 23,950 11,951 3,327 1,665 800 297 179 138 42,307
Oklahoma 960 11,581 12,657 3,767 1,771 1,024 549 322 366 32,037
Oregon 1 11,750 9,196 2,017 816 360 167 63 60 24,430
Pennsylvania - 20,877 17,590 5,143 2,343 1,174 605 397 502 48,631
Rhode Island 8 731 337 101 80 60 55 34 29 1,427
South Carolina 91 15,102 10,460 2,875 1,609 664 326 140 109 31,284
South Dakota 11 5,371 5,225 931 358 164 66 46 35 12,195
Tennessee 1,726 30,439 6,821 1,856 943 506 268 155 198 41,184
Texas 1,255 49,276 50,989 15,973 6,372 2,819 1,095 547 431 127,503
Utah 86 8,538 5,950 1,729 732 314 94 34 38 17,429
Vermont 7 3,158 1,529 313 146 66 35 15 35 5,298
Virginia - 14,536 17,508 4,306 1,594 653 250 110 119 39,075
Washington 7 9,455 8,099 3,493 1,654 826 434 384 393 24,738
West Virginia 7 3,855 6,062 1,497 853 491 228 115 109 13,211
Wisconsin 66 17,249 11,393 6,726 3,417 1,886 779 386 413 42,250
Wyoming 142 6,601 3,519 1,014 471 196 65 42 31 11,939
U.S. Total 6,312 681,395 458,866 142,053 68,371 34,928 16,422 9,152 10,501 1,421,688
Puerto Rico 9 136 773 457 408 335 289 215 381 2,995
Grand Total 6,321 681,531 459,639 142,511 68,779 35,263 16,712 9,366 10,882 1,424,683

NATIONAL HIGHWAY SYSTEM LENGTH - 2024
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

November 2025

(THOUSANDS)

Table HM-47A
(Sheet 3 of 4)
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
INTERSTATE SYSTEM OTHER
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 32 18,088 3,852 1,775 1,419 651 295 337 359 26,777 512 9,665 10,116 3,198 1,590 931 488 296 370 26,655
Alaska - 1,014 802 210 67 35 15 19 1 2,162 7 399 756 482 337 220 95 89 138 2,515
Arizona 339 12,658 6,925 2,205 845 356 217 120 85 23,411 658 15,858 11,350 4,990 4,069 2,644 1,674 1,227 1,550 43,362
Arkansas - 8,852 3,712 1,803 1,371 633 392 220 337 17,319 780 2,034 4,171 1,832 1,030 754 439 363 1,021 11,645
California 53 32,741 62,087 33,104 25,922 16,335 8,329 4,431 3,994 186,943 1,153 27,822 61,331 43,652 40,670 35,451 25,122 20,697 53,790 308,534
Colorado - 4,843 10,669 5,177 3,674 2,242 1,039 519 521 28,684 - 3,168 11,574 7,126 5,831 3,879 2,431 1,835 3,886 39,731
Connecticut - 11,677 9,903 2,736 1,238 675 234 145 238 26,846 8 4,229 7,898 3,746 2,428 1,284 768 495 910 21,757
Delaware 6 1,501 1,185 582 324 134 81 37 115 3,959 203 1,062 3,565 1,329 675 289 199 123 259 7,501
District of Columbia 146 - 203 255 251 169 145 99 107 1,231 158 59 89 133 196 305 363 420 1,963 3,528
Florida - 56,820 28,531 6,775 3,496 1,772 708 339 152 98,593 425 58,609 70,466 24,448 13,007 6,725 3,580 2,077 3,232 182,142
Georgia - 42,240 14,051 4,971 2,297 1,281 533 259 107 65,740 - 17,341 21,361 7,631 4,296 2,250 1,164 662 828 55,533
Hawaii - 220 1,193 963 778 846 526 192 104 4,822 42 681 1,832 1,110 854 891 617 370 928 7,285
Idaho 0 2,739 1,869 395 136 85 59 22 7 5,314 80 853 1,697 766 532 361 168 135 240 4,751
Illinois - 20,240 26,377 8,306 4,767 2,823 1,816 1,088 1,298 66,715 9 5,422 11,790 9,916 8,635 6,220 4,115 3,084 7,287 56,468
Indiana 165 13,092 7,941 4,772 3,111 1,954 836 405 244 32,356 278 3,897 4,259 1,857 1,197 729 366 257 249 12,812
Iowa 30 2,532 3,613 1,452 859 386 214 66 68 9,189 34 1,134 2,769 2,426 1,722 1,179 718 529 997 11,475
Kansas 51 5,643 3,000 1,070 707 382 185 92 72 11,150 282 2,658 2,755 1,234 855 525 356 225 297 8,903
Kentucky 203 10,091 4,437 2,019 1,369 907 648 220 283 19,975 670 3,585 5,295 2,585 1,427 804 462 288 335 14,781
Louisiana 259 8,313 5,547 3,339 3,395 2,845 1,803 1,078 1,257 27,578 1,318 1,974 4,144 2,896 2,784 2,624 1,785 1,476 3,488 21,171
Maine 1 2,999 981 191 52 16 21 - 4 4,264 34 630 627 282 209 200 129 77 200 2,354
Maryland 31 15,137 16,422 4,201 2,279 1,432 727 591 1,309 42,097 129 9,122 13,799 4,820 3,346 2,532 1,792 1,462 4,117 40,989
Massachusetts - 31,999 7,227 2,522 1,723 1,259 612 327 552 46,221 2,821 11,580 7,923 4,967 4,463 4,450 3,271 2,652 7,711 47,015
Michigan 13 15,468 18,989 4,946 3,048 1,575 950 719 944 46,639 6,581 8,157 16,433 9,877 6,853 4,652 2,954 2,280 4,474 55,680
Minnesota - 8,257 11,514 3,023 1,366 720 225 102 124 25,331 2 8,089 8,803 3,803 2,007 1,085 426 230 256 24,698
Mississippi - 7,064 2,514 714 620 537 291 160 210 12,111 - 3,119 4,839 2,316 1,619 1,077 650 447 1,044 15,110
Missouri 0 20,060 10,813 3,277 2,099 1,632 685 484 407 39,456 45 8,340 9,523 4,513 3,079 2,192 1,267 923 1,456 31,293
Montana - 1,139 391 55 33 22 5 1 13 1,659 - 511 916 498 292 261 156 134 237 3,004
Nebraska - 1,047 2,324 1,005 389 153 21 13 13 4,965 103 537 2,310 1,378 1,223 1,022 742 638 1,842 9,693
Nevada - 6,798 4,338 1,608 1,175 576 237 62 45 14,838 - 3,002 3,106 2,342 1,414 996 408 372 420 12,061
New Hampshire - 5,622 635 116 27 9 - - - 6,409 - 3,941 1,837 666 386 259 150 71 173 7,482
New Jersey - 18,736 14,933 3,594 2,212 1,614 934 588 961 43,572 4 24,659 22,652 9,052 6,842 5,462 3,735 2,956 6,553 81,911
New Mexico - 3,999 1,719 535 396 366 231 122 119 7,486 2 1,521 2,065 1,050 812 629 364 229 695 7,367
New York 2,688 11,204 20,034 8,085 5,051 3,491 2,368 1,440 3,639 55,313 3,838 3,405 20,422 15,625 11,847 9,773 7,195 6,189 16,959 91,416
North Carolina 3 27,074 16,028 3,721 1,628 785 541 367 398 50,542 712 6,485 15,251 9,543 6,249 3,706 1,869 1,282 1,352 45,736
North Dakota - 381 796 320 98 31 11 - - 1,637 8 279 650 434 348 238 173 98 178 2,397
Ohio 35 34,696 21,620 5,588 3,502 2,122 1,096 531 522 69,678 57 9,193 13,741 6,255 4,670 3,531 2,249 1,548 3,187 44,375
Oklahoma 636 4,432 6,182 2,674 1,365 1,034 488 309 302 16,786 298 1,971 5,230 2,519 1,710 1,236 685 489 656 14,497
Oregon - 8,426 4,033 959 734 288 325 93 91 14,950 88 3,692 5,302 2,977 2,305 1,526 1,037 696 1,502 19,038
Pennsylvania - 15,586 11,794 4,290 2,340 1,739 1,030 834 1,428 39,040 7 7,292 15,390 10,782 8,483 6,561 4,252 3,036 6,125 61,920
Rhode Island - 3,539 820 265 229 29 14 13 28 4,937 116 1,459 1,482 771 834 794 549 542 1,253 7,684
South Carolina 436 15,814 6,837 1,439 1,255 601 316 168 129 26,559 260 4,841 11,390 5,812 3,874 2,355 1,238 657 692 30,859
South Dakota - 559 1,425 308 109 61 31 16 - 2,509 85 80 385 293 260 208 136 116 141 1,616
Tennessee 22 32,211 7,199 2,013 1,149 544 320 232 402 44,071 6,013 11,567 12,303 4,682 2,851 1,719 988 639 1,193 35,942
Texas 538 31,251 60,211 29,743 19,468 10,975 4,697 2,393 1,434 160,172 3,462 27,271 64,991 39,647 28,559 19,089 10,497 7,049 13,826 210,928
Utah - 4,682 11,030 4,453 2,201 2,004 749 130 32 25,280 410 3,615 6,239 3,396 1,847 1,194 624 322 523 17,761
Vermont - 742 419 112 72 11 5 5 3 1,368 49 204 273 147 93 73 48 44 93 974
Virginia - 16,534 22,799 6,595 3,011 1,727 990 690 549 52,895 1 5,034 17,238 9,795 7,415 5,600 3,205 2,175 2,245 52,709
Washington - 12,528 11,866 4,535 2,339 1,450 752 588 776 34,834 203 6,330 11,700 6,125 4,994 3,905 2,658 2,034 4,589 42,333
West Virginia 3 2,543 2,802 723 520 284 144 71 44 7,132 21 297 1,810 979 624 412 245 183 253 4,803
Wisconsin - 5,325 8,670 4,012 2,649 1,511 450 176 144 22,937 280 3,895 5,281 4,579 3,966 3,824 2,649 2,095 4,775 31,064
Wyoming - 560 525 180 113 90 62 44 32 1,605 50 390 444 264 170 155 78 63 150 1,715
U.S. Total 5,692 619,715 503,789 187,712 119,280 73,198 37,403 20,957 24,002 1,586,055 32,294 340,956 541,574 291,546 215,780 158,780 101,329 76,372 170,636 1,896,974
Puerto Rico 98 280 2,412 2,060 1,501 1,387 1,128 693 2,026 11,486 206 129 791 949 1,093 1,308 1,228 1,190 3,031 9,719
Grand Total 5,790 619,995 506,200 189,772 120,781 74,585 38,531 21,650 26,028 1,597,541 32,500 341,085 542,366 292,496 216,872 160,088 102,557 77,562 173,667 1,906,693

NATIONAL HIGHWAY SYSTEM LENGTH - 2024
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

November 2025

(THOUSANDS)

Table HM-47A
(Sheet 4 of 4)
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
TOTAL URBAN NHS
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 544 27,753 13,968 4,974 3,009 1,582 784 632 730 53,432
Alaska 7 1,413 1,558 692 404 254 110 107 138 4,677
Arizona 997 28,516 18,275 7,195 4,914 3,000 1,891 1,347 1,635 66,773
Arkansas 780 10,886 7,883 3,636 2,401 1,387 831 584 1,357 28,964
California 1,206 60,563 123,418 76,757 66,592 51,786 33,451 25,128 57,783 495,478
Colorado - 8,011 22,243 12,303 9,505 6,121 3,470 2,354 4,408 68,415
Connecticut 8 15,906 17,801 6,482 3,666 1,958 1,002 640 1,148 48,603
Delaware 209 2,563 4,750 1,911 999 423 279 160 374 11,459
District of Columbia 305 59 293 388 448 474 508 519 2,071 4,759
Florida 425 115,429 98,997 31,223 16,503 8,497 4,288 2,415 3,384 280,735
Georgia - 59,581 35,413 12,603 6,593 3,531 1,698 921 935 121,273
Hawaii 42 901 3,025 2,073 1,633 1,737 1,143 562 1,032 12,106
Idaho 80 3,592 3,566 1,161 669 446 227 157 247 10,065
Illinois 9 25,662 38,167 18,222 13,403 9,043 5,930 4,171 8,585 123,183
Indiana 442 16,989 12,200 6,630 4,309 2,683 1,202 661 494 45,168
Iowa 63 3,667 6,382 3,877 2,581 1,565 932 595 1,065 20,664
Kansas 334 8,300 5,755 2,304 1,562 906 541 317 368 20,054
Kentucky 873 13,676 9,732 4,604 2,796 1,712 1,111 508 618 34,756
Louisiana 1,577 10,286 9,691 6,236 6,179 5,469 3,588 2,553 4,745 48,748
Maine 35 3,629 1,608 473 260 216 150 77 203 6,617
Maryland 160 24,259 30,221 9,021 5,625 3,963 2,519 2,052 5,426 83,086
Massachusetts 2,821 43,579 15,150 7,488 6,186 5,709 3,883 2,979 8,263 93,237
Michigan 6,594 23,625 35,421 14,824 9,901 6,227 3,904 2,999 5,418 102,319
Minnesota 2 16,346 20,317 6,826 3,374 1,805 650 332 380 50,029
Mississippi - 10,183 7,354 3,029 2,239 1,614 941 607 1,254 27,220
Missouri 45 28,400 20,336 7,790 5,178 3,823 1,952 1,408 1,862 70,749
Montana - 1,650 1,307 553 326 283 160 135 250 4,663
Nebraska 103 1,584 4,634 2,383 1,612 1,175 763 651 1,855 14,658
Nevada - 9,800 7,444 3,949 2,589 1,572 645 434 466 26,899
New Hampshire - 9,563 2,472 782 412 268 150 71 173 13,892
New Jersey 4 43,395 37,585 12,646 9,054 7,076 4,669 3,544 7,514 125,484
New Mexico 2 5,520 3,785 1,585 1,208 995 595 351 814 14,853
New York 6,527 14,610 40,456 23,710 16,898 13,264 9,564 7,629 20,598 146,729
North Carolina 714 33,559 31,279 13,264 7,877 4,491 2,410 1,649 1,750 96,278
North Dakota 8 660 1,446 754 446 269 184 98 178 4,034
Ohio 92 43,888 35,362 11,843 8,172 5,653 3,344 2,079 3,710 114,053
Oklahoma 935 6,404 11,412 5,193 3,075 2,270 1,173 799 957 31,283
Oregon 88 12,118 9,336 3,936 3,039 1,814 1,362 789 1,593 33,988
Pennsylvania 7 22,878 27,184 15,072 10,823 8,300 5,282 3,870 7,552 100,960
Rhode Island 116 4,998 2,302 1,036 1,062 823 563 555 1,281 12,620
South Carolina 696 20,655 18,227 7,251 5,129 2,956 1,554 825 822 57,418
South Dakota 85 638 1,809 601 369 268 167 132 141 4,125
Tennessee 6,035 43,778 19,501 6,695 4,000 2,263 1,308 872 1,594 80,013
Texas 4,001 58,522 125,202 69,390 48,027 30,064 15,194 9,442 15,260 371,101
Utah 410 8,297 17,270 7,849 4,047 3,198 1,373 452 555 43,041
Vermont 49 946 692 258 164 85 53 48 96 2,342
Virginia 1 21,568 40,038 16,391 10,426 7,327 4,196 2,865 2,794 105,604
Washington 203 18,858 23,565 10,660 7,333 5,355 3,410 2,622 5,365 77,167
West Virginia 24 2,840 4,612 1,702 1,145 696 389 253 296 11,935
Wisconsin 280 9,220 13,952 8,590 6,615 5,335 3,100 2,270 4,918 54,001
Wyoming 50 950 969 444 283 245 140 107 182 3,320
U.S. Total 37,986 960,671 1,045,363 479,258 335,059 231,978 138,732 97,329 194,638 3,483,028
Puerto Rico 304 408 3,203 3,009 2,594 2,695 2,356 1,883 5,057 21,205
Grand Total 38,290 961,079 1,048,566 482,267 337,653 234,673 141,088 99,212 199,695 3,504,234

(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. Travel is in thousands.

(2) May include sections entirely on structures and unpaved miles.

 

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