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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Highway Statistics Series / 2023 / Table HM-47A - Highway Statistics 2023

Highway Statistics Series

Highway Statistics 2023


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NATIONAL HIGHWAY SYSTEM LENGTH - 2023
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

November 19, 2024

(THOUSANDS)

INTERNATIONAL ROUGHNESS INDEX (IRI) (1)

Table HM-47A (Sheet 1 of 4)
STATE 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 4 15,842 1,654 698 309 179 97 64 66 18,909 15 9,332 4,647 955 409 179 85 50 38 15,695
Alaska - 835 906 291 144 84 50 26 28 2,364 53 188 384 114 55 43 29 17 33 863
Arizona 47 12,598 4,855 1,439 797 554 317 227 382 21,169 40 2,792 3,469 1,908 1,204 714 314 211 226 10,839
Arkansas - 7,762 3,275 857 465 235 164 71 81 12,908 - 3,983 4,785 1,478 710 329 144 66 86 11,582
California 67 15,158 15,508 6,210 3,922 2,225 1,277 878 1,232 46,411 130 10,824 18,850 8,107 4,396 2,219 1,096 630 743 46,865
Colorado - 1,946 6,735 2,665 1,253 684 362 226 257 14,128 - 2,789 5,832 2,431 1,415 723 348 197 170 13,906
Connecticut - 1,087 188 37 14 - - - 1 1,327 - 535 768 346 174 69 43 29 15 1,979
Delaware - - - - - - - - - - 55 1,211 1,431 302 74 35 16 16 2 3,086
District of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 382 28,409 4,273 647 263 107 41 6 2 33,749 36 20,418 10,104 2,128 909 400 135 59 78 34,231
Georgia - 16,218 5,569 1,162 431 271 97 44 29 23,821 - 8,899 8,107 2,231 989 410 121 46 48 20,850
Hawaii - - - - - - - - - - 15 59 374 220 80 52 31 15 27 859
Idaho 9 5,131 2,402 450 200 67 35 11 17 8,312 7 3,467 2,947 673 302 142 60 32 35 7,658
Illinois - 16,947 6,188 1,382 568 358 146 80 73 25,742 - 3,216 3,432 1,551 995 590 324 195 262 10,565
Indiana 4 13,760 5,507 1,579 855 479 245 147 198 22,771 35 8,440 4,355 1,140 555 282 97 45 34 14,948
Iowa - 6,321 5,629 1,521 615 253 128 55 73 14,596 46 3,681 5,754 3,664 2,110 1,131 523 300 266 17,429
Kansas 3 7,218 2,271 722 322 108 42 19 9 10,711 5 6,986 4,258 772 304 170 66 37 42 12,635
Kentucky 54 18,363 3,655 1,013 604 391 185 132 111 24,454 54 7,339 4,448 1,189 409 231 119 39 45 13,818
Louisiana 245 7,674 4,939 3,377 1,841 1,109 443 179 92 19,654 10 1,201 2,893 1,566 1,005 604 346 232 310 8,158
Maine - 5,032 965 74 31 10 6 1 4 6,123 1 2,439 1,654 417 197 126 82 62 116 5,094
Maryland - 2,538 2,320 512 255 91 26 27 50 5,818 8 3,641 2,686 459 149 107 45 39 65 7,191
Massachusetts - 1,663 413 54 39 39 20 6 18 2,252 - 719 824 296 168 93 31 26 22 2,179
Michigan 566 6,969 4,980 973 792 538 240 101 93 14,687 374 10,783 6,135 1,493 570 285 157 104 171 19,698
Minnesota - 5,718 3,671 522 159 78 26 8 4 10,188 67 7,406 6,957 2,512 1,125 526 234 134 102 18,997
Mississippi - 8,432 3,354 928 504 306 157 59 46 13,785 2 4,871 6,026 1,958 1,169 783 411 207 179 15,603
Missouri - 17,175 3,396 781 353 240 118 64 86 22,214 6 12,684 7,679 1,868 770 318 145 81 66 23,610
Montana - 4,449 2,649 468 223 90 28 9 66 7,983 - 2,966 3,351 883 354 157 65 32 23 7,831
Nebraska - 4,426 3,157 576 174 100 37 7 6 8,482 3 2,040 3,156 1,590 951 528 269 164 192 8,890
Nevada - 5,862 595 141 91 28 16 11 7 6,752 - 3,452 1,190 241 105 66 42 18 35 5,148
New Hampshire - 2,253 230 61 21 8 8 2 - 2,581 2 2,651 1,031 266 91 46 34 17 21 4,156
New Jersey - 1,453 1,471 300 123 53 19 5 1 3,425 - 1,713 1,031 206 107 60 25 10 29 3,181
New Mexico 2 8,878 2,994 1,045 616 359 157 112 108 14,269 5 3,304 3,645 1,122 552 323 175 96 122 9,339
New York 71 7,409 6,060 1,483 770 419 168 92 49 16,449 89 2,001 6,273 2,251 1,073 585 250 143 134 12,709
North Carolina 53 19,537 7,276 1,235 615 251 166 73 119 29,272 130 13,567 14,739 4,407 1,771 768 324 178 204 35,958
North Dakota - 2,981 1,357 214 126 30 12 9 9 4,738 - 2,825 2,402 469 170 69 27 14 30 6,006
Ohio 14 16,665 5,752 1,374 598 311 114 61 50 24,926 5 7,933 6,297 2,195 1,044 497 227 105 63 18,359
Oklahoma 208 7,629 6,976 1,123 432 232 109 80 67 16,650 173 3,966 6,412 2,500 1,412 728 358 232 319 15,926
Oregon - 7,194 3,175 483 193 81 42 13 7 11,189 7 4,745 5,424 1,341 536 231 100 63 55 12,495
Pennsylvania - 12,847 8,050 1,824 1,011 578 307 205 364 25,187 28 4,624 7,919 2,778 1,421 668 398 253 378 18,439
Rhode Island - 658 99 18 5 9 - - 3 792 7 159 165 98 125 100 79 45 41 811
South Carolina 20,178 - - - - - - - - - 55 2,751 5,292 1,637 845 346 155 90 67 11,182
South Dakota - 3,493 2,679 251 81 48 9 14 1 6,577 - 1,996 2,252 710 302 138 67 41 27 5,534
Tennessee 21 22,379 2,976 697 431 164 66 45 22 26,781 6 5,756 4,750 1,186 653 348 178 105 106 13,082
Texas 59 23,153 23,070 5,375 1,850 822 296 153 77 54,796 578 25,659 26,988 9,445 4,156 1,791 726 387 288 69,439
Utah - 6,583 3,250 765 237 67 38 2 17 10,961 - 1,649 2,733 1,035 461 212 52 24 24 6,189
Vermont 1 2,242 692 118 57 20 9 6 5 3,148 5 777 757 194 92 48 27 9 31 1,935
Virginia - 11,292 8,090 1,339 348 141 70 32 17 21,329 - 3,381 9,893 3,016 1,138 425 165 62 37 18,117
Washington - 6,558 3,537 1,114 709 323 217 195 138 12,791 7 3,342 4,769 2,152 920 336 142 98 104 11,863
West Virginia - 1,898 1,961 326 182 112 45 19 17 4,559 3 813 2,332 930 520 239 138 63 56 5,090
Wisconsin 66 8,899 4,817 2,186 754 340 152 70 43 17,261 105 7,644 5,823 3,824 2,618 1,262 598 280 318 22,368
Wyoming - 4,653 1,429 555 308 118 47 37 21 7,167 141 1,782 1,859 499 191 64 22 11 13 4,440
U.S. Total 22,054 416,185 194,998 50,966 24,691 13,110 6,355 3,684 4,167 714,158 2,307 249,397 249,277 84,753 41,849 20,593 9,646 5,412 5,898 666,825
Puerto Rico 162 94 543 325 138 115 74 65 239 1,593 4 - 56 143 151 142 82 80 169 824
Grand Total 22,217 416,280 195,541 51,291 24,829 13,226 6,429 3,749 4,406 715,751 2,311 249,397 249,333 84,896 42,000 20,736 9,728 5,492 6,067 667,649

NATIONAL HIGHWAY SYSTEM LENGTH - 2020
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

November 19, 2024

(THOUSANDS)

INTERNATIONAL ROUGHNESS INDEX (IRI) (1)

Table HM-47A (Sheet 2 of 4)
STATE TOTAL RURAL NHS
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 19 25,174 6,301 1,653 718 358 182 114 104 34,604
Alaska 53 1,022 1,290 405 199 127 79 44 61 3,227
Arizona 87 15,391 8,324 3,347 2,001 1,268 631 438 608 32,008
Arkansas - 11,745 8,060 2,335 1,175 564 308 137 167 24,490
California 197 25,982 34,358 14,318 8,318 4,444 2,373 1,508 1,975 93,276
Colorado - 4,735 12,567 5,096 2,668 1,407 710 423 427 28,033
Connecticut - 1,622 956 382 189 69 43 29 16 3,306
Delaware 55 1,211 1,431 302 74 35 16 16 2 3,086
District of Columbia - - - - - - - - - -
Florida 419 48,827 14,378 2,775 1,172 507 176 65 81 67,981
Georgia - 25,117 13,675 3,393 1,420 680 219 91 77 44,672
Hawaii 15 59 374 220 80 52 31 15 27 859
Idaho 15 8,598 5,350 1,122 502 209 95 42 52 15,971
Illinois - 20,164 9,620 2,933 1,562 948 470 275 335 36,307
Indiana 39 22,200 9,862 2,719 1,410 761 342 193 232 37,719
Iowa 46 10,002 11,384 5,185 2,726 1,384 651 355 339 32,026
Kansas 9 14,204 6,529 1,495 626 278 108 56 51 23,346
Kentucky 108 25,702 8,103 2,201 1,013 622 304 171 156 38,271
Louisiana 255 8,875 7,832 4,943 2,846 1,713 788 412 403 27,812
Maine 1 7,471 2,619 491 228 136 89 63 120 11,218
Maryland 8 6,179 5,006 971 404 197 71 65 115 13,009
Massachusetts - 2,382 1,237 350 207 133 50 32 41 4,431
Michigan 940 17,752 11,115 2,465 1,362 822 397 206 264 34,384
Minnesota 67 13,124 10,629 3,034 1,284 604 261 142 106 29,185
Mississippi 2 13,303 9,380 2,886 1,673 1,089 568 265 225 29,388
Missouri 6 29,859 11,075 2,649 1,123 557 263 145 153 45,825
Montana - 7,415 6,000 1,351 577 247 93 41 89 15,814
Nebraska 3 6,466 6,313 2,166 1,125 628 306 171 198 17,372
Nevada - 9,315 1,785 382 196 94 58 29 42 11,900
New Hampshire 2 4,904 1,260 327 111 53 42 19 21 6,737
New Jersey - 3,165 2,502 506 230 113 44 15 30 6,606
New Mexico 7 12,182 6,639 2,167 1,168 682 333 208 230 23,608
New York 160 9,410 12,332 3,733 1,843 1,003 418 235 183 29,158
North Carolina 183 33,104 22,015 5,642 2,386 1,019 490 251 323 65,230
North Dakota - 5,806 3,758 683 296 100 39 23 39 10,744
Ohio 18 24,598 12,049 3,569 1,642 808 341 166 113 43,285
Oklahoma 381 11,595 13,388 3,623 1,844 960 467 312 386 32,576
Oregon 8 11,940 8,599 1,824 728 312 142 76 62 23,684
Pennsylvania 28 17,471 15,969 4,602 2,432 1,246 705 458 741 43,626
Rhode Island 7 817 264 116 130 109 79 45 44 1,603
South Carolina 20,233 2,751 5,292 1,637 845 346 155 90 67 11,182
South Dakota - 5,489 4,931 961 384 187 76 56 28 12,111
Tennessee 27 28,134 7,726 1,884 1,084 512 244 150 128 39,862
Texas 637 48,812 50,057 14,820 6,006 2,613 1,022 541 365 124,235
Utah - 8,232 5,983 1,800 698 279 90 26 41 17,150
Vermont 6 3,019 1,450 312 149 67 36 16 35 5,083
Virginia - 14,672 17,983 4,355 1,486 566 235 93 55 39,446
Washington 7 9,900 8,306 3,266 1,629 659 359 293 242 24,653
West Virginia 3 2,710 4,293 1,256 702 350 183 82 73 9,649
Wisconsin 171 16,543 10,640 6,010 3,372 1,602 751 350 361 39,628
Wyoming 141 6,434 3,287 1,054 499 182 69 48 34 11,607
U.S. Total 24,361 665,582 444,275 135,719 66,540 33,704 16,000 9,096 10,065 1,380,982
Puerto Rico 166 94 599 468 289 257 157 145 408 2,418
Grand Total 24,528 665,677 444,874 136,187 66,830 33,961 16,157 9,241 10,473 1,383,400

NATIONAL HIGHWAY SYSTEM LENGTH - 2020
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

November 19, 2024

(THOUSANDS)

INTERNATIONAL ROUGHNESS INDEX (IRI) (1)

Table HM-47A (Sheet 3 of 4)
STATE 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 25 17,847 3,708 1,694 1,245 632 375 366 595 26,462 95 9,330 10,485 3,197 1,683 931 501 285 371 26,783
Alaska - 931 821 249 98 33 12 - 3 2,147 5 445 712 449 315 189 116 89 151 2,465
Arizona 801 12,866 5,890 2,124 916 479 140 58 105 22,578 608 14,131 11,770 5,317 4,238 2,666 1,910 1,270 1,769 43,070
Arkansas - 7,987 3,765 1,997 1,344 878 429 242 367 17,010 1 1,825 4,263 1,945 1,114 788 491 376 1,162 11,965
California 7 30,458 60,517 35,124 27,402 18,491 10,045 5,830 6,191 194,056 792 26,324 60,270 42,711 39,315 33,802 23,634 19,525 49,854 295,434
Colorado - 4,682 9,507 5,152 3,621 2,384 956 536 520 27,358 - 3,221 11,605 7,234 5,877 3,851 2,359 1,720 3,553 39,419
Connecticut - 11,349 10,028 2,718 1,344 563 303 147 131 26,583 13 4,109 7,990 3,682 2,299 1,387 762 487 821 21,537
Delaware 40 1,472 1,149 527 260 181 104 50 131 3,873 65 1,316 3,645 1,193 673 370 185 125 245 7,753
District of Columbia 923 - 154 56 24 61 62 4 70 432 136 54 94 103 190 299 341 344 2,048 3,473
Florida 850 53,437 25,799 5,498 3,241 2,045 738 268 135 91,162 181 53,979 69,435 23,893 12,593 6,658 3,530 2,118 3,091 175,297
Georgia - 44,291 16,809 5,136 2,504 1,466 557 281 162 71,206 - 18,851 22,776 8,455 4,392 2,517 1,254 612 975 59,832
Hawaii - 330 1,283 1,013 801 804 506 186 98 5,022 42 682 1,801 1,083 841 880 598 353 893 7,131
Idaho - 2,587 1,914 255 125 118 38 32 - 5,069 124 1,010 1,649 623 360 309 115 110 167 4,342
Illinois - 20,830 25,487 7,547 4,122 3,292 1,836 933 1,321 65,367 2 5,378 11,663 9,785 8,498 6,123 4,054 3,037 7,193 55,731
Indiana 357 14,987 8,799 3,314 2,088 1,290 485 283 153 31,400 408 4,591 4,329 1,614 988 737 348 185 215 13,007
Iowa 25 2,537 3,031 1,470 731 387 174 74 84 8,488 74 1,132 2,542 2,306 1,652 1,045 686 520 958 10,840
Kansas 56 6,093 2,747 1,340 762 415 159 107 62 11,685 337 2,575 2,789 1,221 824 546 310 215 306 8,787
Kentucky 4 8,967 4,713 2,014 1,148 825 555 232 284 18,739 756 3,589 4,941 2,637 1,402 714 384 253 315 14,234
Louisiana 338 8,440 5,720 3,365 3,319 2,990 2,028 993 1,425 28,279 1,644 2,121 4,525 3,143 2,583 2,476 1,873 1,541 3,876 22,137
Maine - 2,432 803 191 45 13 20 - 2 3,506 21 579 606 261 236 213 126 92 211 2,324
Maryland 14 14,869 16,206 4,075 1,886 1,211 752 489 1,278 40,765 212 10,561 15,046 5,143 3,456 2,568 1,962 1,610 4,192 44,537
Massachusetts 48 31,298 6,999 2,097 1,318 1,027 388 272 375 43,774 553 12,565 8,569 5,156 4,657 4,351 3,264 2,701 7,393 48,657
Michigan 2,470 14,755 16,542 4,538 2,779 1,583 920 579 923 42,618 7,691 7,336 15,601 9,698 6,797 4,640 2,961 2,288 4,546 53,867
Minnesota 47 8,198 10,669 3,177 1,294 709 273 82 144 24,547 17 7,069 9,249 3,938 1,958 1,030 479 273 243 24,238
Mississippi - 6,350 2,633 939 570 587 213 197 168 11,656 60 2,998 4,446 2,405 1,651 1,187 693 500 1,051 14,930
Missouri - 20,933 10,566 3,119 1,957 1,414 622 508 315 39,434 37 8,411 10,090 4,502 2,818 2,003 1,281 864 1,411 31,380
Montana - 1,088 383 74 43 26 5 2 11 1,632 - 585 893 443 301 242 167 142 211 2,984
Nebraska - 1,126 2,122 967 291 144 23 23 2 4,698 56 356 2,019 1,424 1,200 965 699 655 1,920 9,238
Nevada - 4,682 3,444 1,527 1,431 804 198 187 101 12,376 - 4,512 3,810 2,102 1,449 959 415 335 408 13,990
New Hampshire - 5,419 619 82 26 13 4 - - 6,163 - 3,861 1,903 538 369 193 106 78 121 7,168
New Jersey - 18,716 14,110 3,502 1,909 1,406 1,128 693 1,023 42,487 3 23,366 23,499 8,738 7,049 5,579 3,826 2,919 6,337 81,315
New Mexico - 4,047 1,645 555 423 293 128 106 102 7,299 69 1,466 1,947 1,009 756 607 305 180 425 6,695
New York 1,512 10,507 20,429 8,012 5,459 3,621 1,974 1,463 3,165 54,630 2,924 3,575 21,240 15,781 12,070 9,949 7,376 6,687 18,024 94,702
North Carolina 140 25,162 15,837 3,986 1,574 873 572 378 355 48,737 1,029 6,105 13,872 8,990 5,827 3,696 1,780 1,164 1,314 42,748
North Dakota - 400 788 206 99 34 18 1 - 1,546 - 285 600 384 353 253 154 116 196 2,340
Ohio 61 35,069 19,721 5,696 3,267 1,822 944 550 386 67,456 182 8,609 13,214 6,264 4,686 3,319 2,059 1,598 3,057 42,806
Oklahoma 73 3,681 6,141 2,604 1,256 874 450 289 353 15,648 161 2,211 5,509 2,493 1,571 1,059 596 396 552 14,385
Oregon - 7,607 4,838 1,127 752 437 322 119 80 15,281 301 3,988 5,452 3,023 2,230 1,465 953 680 1,305 19,097
Pennsylvania - 16,005 13,039 4,449 2,600 1,785 1,072 707 1,182 40,840 21 8,024 17,785 11,754 9,740 7,271 4,642 3,263 7,030 69,509
Rhode Island 4 3,642 574 199 127 116 45 49 10 4,762 103 1,479 1,421 761 874 770 619 494 1,345 7,763
South Carolina 26,798 - - - - - - - - - 260 4,824 11,432 5,886 3,935 2,416 1,206 690 696 31,085
South Dakota - 518 1,333 331 156 58 34 9 - 2,440 24 88 387 345 245 217 146 120 158 1,708
Tennessee 35 31,222 8,485 2,751 1,188 709 301 153 310 45,120 55 12,657 13,282 5,400 3,679 2,301 1,254 892 1,672 41,136
Texas 632 32,498 59,887 28,617 19,028 10,377 5,003 2,047 1,520 158,978 2,013 26,095 64,800 40,343 28,137 18,237 10,744 7,066 14,010 209,431
Utah - 4,555 10,306 4,320 2,119 1,502 494 230 52 23,577 36 3,313 5,978 3,326 1,969 1,162 588 341 569 17,247
Vermont 1 859 470 112 66 12 5 5 5 1,533 37 226 303 150 94 76 47 44 91 1,031
Virginia - 16,331 22,311 7,406 3,165 1,651 734 480 245 52,323 10 4,460 17,357 9,326 7,536 5,508 3,284 2,180 2,097 51,748
Washington - 12,479 12,196 4,221 2,235 1,377 636 613 664 34,420 123 6,242 11,752 5,985 5,054 3,771 2,630 2,022 4,285 41,742
West Virginia - 2,546 2,802 718 453 285 122 76 46 7,048 38 614 2,126 1,086 618 417 235 161 181 5,440
Wisconsin 401 4,860 7,851 3,966 3,045 1,663 655 393 222 22,655 475 3,281 5,378 4,779 4,596 4,175 2,760 2,064 4,734 31,768
Wyoming - 587 461 162 119 75 57 40 33 1,535 50 389 448 257 160 144 79 62 142 1,681
U.S. Total 35,660 592,534 486,050 184,320 115,777 73,836 37,614 21,365 24,906 1,536,401 21,842 334,790 547,299 292,283 215,910 157,028 100,887 75,843 167,887 1,891,927
Puerto Rico 330 210 2,160 2,197 1,899 1,643 1,002 789 1,746 11,646 135 77 835 920 1,144 1,294 1,234 1,239 3,128 9,870
Grand Total 35,990 592,744 488,210 186,517 117,676 75,479 38,616 22,154 26,652 1,548,047 21,977 334,867 548,134 293,203 217,054 158,322 102,120 77,082 171,015 1,901,797

NATIONAL HIGHWAY SYSTEM LENGTH - 2020
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

November 19, 2024

(THOUSANDS)

INTERNATIONAL ROUGHNESS INDEX (IRI) (1)

Table HM-47A (Sheet 4 of 4)
STATE TOTAL URBAN NHS
NOT REPORTED (2) < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL REPORTED
Alabama 120 27,178 14,193 4,891 2,928 1,563 876 651 966 53,244
Alaska 5 1,376 1,533 697 413 222 129 89 154 4,612
Arizona 1,409 26,996 17,660 7,441 5,154 3,145 2,050 1,328 1,874 65,648
Arkansas 1 9,812 8,028 3,942 2,458 1,666 920 619 1,529 28,975
California 799 56,781 120,787 77,835 66,717 52,294 33,678 25,355 56,044 489,490
Colorado - 7,903 21,112 12,386 9,499 6,234 3,314 2,256 4,072 66,777
Connecticut 13 15,458 18,018 6,399 3,643 1,950 1,065 635 953 48,120
Delaware 105 2,788 4,794 1,720 933 550 289 175 375 11,625
District of Columbia 1,058 54 248 160 214 360 403 348 2,119 3,905
Florida 1,031 107,416 95,234 29,391 15,834 8,703 4,268 2,386 3,226 266,458
Georgia - 63,142 39,585 13,591 6,896 3,983 1,811 893 1,137 131,037
Hawaii 42 1,013 3,083 2,096 1,642 1,684 1,104 540 991 12,154
Idaho 124 3,597 3,563 877 485 427 153 142 167 9,412
Illinois 2 26,208 37,149 17,333 12,620 9,415 5,890 3,969 8,514 121,098
Indiana 765 19,578 13,129 4,928 3,076 2,027 833 469 368 44,407
Iowa 98 3,670 5,574 3,775 2,383 1,431 860 594 1,042 19,328
Kansas 393 8,668 5,536 2,561 1,586 961 470 322 368 20,472
Kentucky 760 12,556 9,654 4,651 2,550 1,539 940 484 599 32,973
Louisiana 1,981 10,560 10,245 6,508 5,902 5,466 3,900 2,534 5,300 50,417
Maine 21 3,011 1,409 452 281 226 146 92 213 5,830
Maryland 226 25,430 31,251 9,218 5,342 3,779 2,714 2,098 5,470 85,301
Massachusetts 602 43,864 15,568 7,253 5,975 5,378 3,652 2,974 7,767 92,431
Michigan 10,160 22,091 32,143 14,237 9,576 6,223 3,882 2,867 5,468 96,485
Minnesota 63 15,267 19,918 7,115 3,252 1,738 752 355 387 48,785
Mississippi 60 9,348 7,078 3,344 2,221 1,774 905 697 1,218 26,586
Missouri 37 29,344 20,656 7,621 4,775 3,417 1,903 1,372 1,726 70,814
Montana - 1,673 1,276 517 344 268 172 144 222 4,616
Nebraska 56 1,482 4,141 2,391 1,491 1,109 722 678 1,922 13,935
Nevada - 9,195 7,255 3,629 2,880 1,763 613 523 509 26,366
New Hampshire - 9,280 2,522 620 395 206 110 78 121 13,331
New Jersey 3 42,082 37,609 12,241 8,958 6,985 4,954 3,613 7,359 123,802
New Mexico 69 5,513 3,592 1,564 1,180 900 433 286 527 13,994
New York 4,436 14,081 41,670 23,793 17,529 13,571 9,350 8,150 21,189 149,332
North Carolina 1,169 31,267 29,709 12,977 7,401 4,569 2,351 1,542 1,669 91,485
North Dakota - 685 1,388 589 452 287 172 117 196 3,886
Ohio 243 43,678 32,935 11,961 7,953 5,141 3,004 2,148 3,443 110,262
Oklahoma 234 5,891 11,650 5,097 2,826 1,933 1,046 684 904 30,033
Oregon 301 11,595 10,291 4,150 2,981 1,902 1,275 800 1,385 34,378
Pennsylvania 21 24,029 30,824 16,203 12,340 9,056 5,714 3,970 8,212 110,349
Rhode Island 108 5,121 1,995 960 1,001 887 664 543 1,355 12,525
South Carolina 27,058 4,824 11,432 5,886 3,935 2,416 1,206 690 696 31,085
South Dakota 24 607 1,720 677 401 276 180 129 158 4,148
Tennessee 90 43,879 21,767 8,151 4,867 3,010 1,555 1,044 1,982 86,256
Texas 2,645 58,593 124,687 68,960 47,166 28,614 15,747 9,113 15,529 368,409
Utah 36 7,868 16,283 7,646 4,088 2,665 1,082 571 622 40,824
Vermont 38 1,085 773 262 160 87 52 49 96 2,564
Virginia 10 20,791 39,668 16,732 10,701 7,159 4,019 2,660 2,342 104,072
Washington 123 18,721 23,948 10,207 7,289 5,148 3,266 2,635 4,949 76,162
West Virginia 38 3,161 4,928 1,804 1,072 701 357 238 227 12,487
Wisconsin 876 8,141 13,230 8,745 7,641 5,838 3,416 2,458 4,956 54,423
Wyoming 50 976 909 418 279 219 136 102 176 3,216
U.S. Total 57,502 927,324 1,033,349 476,602 331,687 230,864 138,500 97,208 192,793 3,428,328
Puerto Rico 465 287 2,994 3,118 3,043 2,937 2,236 2,028 4,874 21,516
Grand Total 57,967 927,611 1,036,343 479,720 334,730 233,801 140,736 99,236 197,667 3,449,844

(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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