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Highway Statistics Series

Highway Statistics 2019


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NATIONAL HIGHWAY SYSTEM LENGTH - 2019
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

September 30, 2020

(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 3 14,068 2,458 781 447 193 81 38 135 18,200 2 8,653 4,880 865 346 195 97 63 171 15,269
Alaska 3 961 802 279 143 77 31 17 16 2,327 56 276 343 78 56 37 22 17 28 857
Arizona 132 12,008 4,664 1,616 621 269 129 62 110 19,479 312 2,904 3,372 1,465 878 491 220 134 124 9,589
Arkansas - 6,663 3,347 860 400 237 125 68 73 11,772 - 2,452 4,878 1,777 1,026 570 235 131 99 11,169
California 46 20,322 13,748 5,937 3,330 1,608 891 409 788 47,034 277 11,504 18,901 7,127 3,759 2,039 953 521 517 45,321
Colorado - 2,720 6,196 2,586 914 528 321 156 100 13,521 - 2,735 5,610 2,536 1,242 552 223 107 97 13,101
Connecticut - 854 313 105 35 11 7 9 8 1,343 - 481 897 331 186 82 51 21 13 2,063
Delaware - - - - - - - - - - 56 618 1,569 490 197 76 23 25 3 3,001
District of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 17 25,231 4,545 342 213 115 73 23 33 30,575 23 15,110 11,812 2,027 719 298 91 61 78 30,197
Georgia - 10,653 8,434 1,884 669 267 171 67 84 22,229 - 7,229 9,239 2,467 926 313 96 54 49 20,373
Hawaii - - - - - - - - - - - 31 321 227 146 91 58 40 51 966
Idaho 5 4,958 2,015 347 169 81 28 11 23 7,633 389 2,667 2,585 659 269 120 57 28 20 6,406
Illinois - 14,874 7,320 1,970 734 451 189 107 122 25,768 3 1,811 4,296 1,983 1,206 747 398 222 243 10,905
Indiana 14 8,384 8,186 2,426 1,642 603 406 231 351 22,228 4 5,318 5,566 2,169 1,120 525 195 81 78 15,052
Iowa 19 6,837 5,283 1,388 486 156 60 28 37 14,273 192 3,982 6,430 3,389 1,776 840 366 204 200 17,188
Kansas 6 5,972 2,857 844 284 103 55 22 11 10,148 1 6,820 4,271 848 340 205 109 49 36 12,678
Kentucky 1 16,617 3,913 1,105 602 542 180 38 86 23,084 7 6,017 5,312 1,558 762 282 116 55 45 14,146
Louisiana 328 7,890 4,543 2,856 1,860 942 352 125 73 18,641 72 767 3,061 1,468 840 533 333 181 282 7,467
Maine - 4,197 1,166 294 151 67 54 16 14 5,958 18 1,714 1,697 609 359 247 149 124 233 5,133
Maryland - 2,669 2,415 471 274 105 28 14 50 6,024 - 3,772 2,385 333 144 100 77 61 77 6,949
Massachusetts - 1,501 505 143 75 55 25 13 19 2,334 - 458 1,023 408 234 107 66 33 49 2,379
Michigan 50 4,642 6,817 1,934 1,126 612 328 171 165 15,795 - 7,909 7,648 2,164 923 541 249 136 152 19,722
Minnesota - 3,648 5,462 1,002 382 226 123 48 27 10,918 74 7,739 6,982 2,524 1,429 762 342 183 178 20,140
Mississippi - 9,173 2,180 780 519 338 149 59 33 13,231 - 5,209 5,657 1,770 1,109 619 273 139 103 14,880
Missouri - 14,311 4,014 647 254 149 76 31 12 19,493 - 11,935 8,138 1,724 703 289 129 71 56 23,044
Montana - 4,049 2,389 433 191 105 32 15 26 7,239 - 2,349 3,289 838 367 173 70 43 76 7,204
Nebraska - 3,492 3,316 763 243 132 67 23 20 8,057 169 2,946 3,530 1,297 626 405 218 118 162 9,302
Nevada - 5,770 410 90 57 28 15 5 2 6,378 - 3,133 1,216 222 92 24 18 8 12 4,724
New Hampshire - 2,540 360 63 33 14 2 2 - 3,014 - 1,921 1,257 339 184 84 66 49 54 3,954
New Jersey - 1,434 1,568 179 144 32 13 15 5 3,390 - 848 1,280 377 255 183 86 68 120 3,217
New Mexico - 8,425 2,670 843 433 242 85 68 107 12,872 - 3,279 3,428 872 450 227 105 67 77 8,505
New York 68 7,594 5,600 1,838 832 383 132 114 141 16,634 92 1,805 6,386 2,349 1,163 596 267 186 167 12,918
North Carolina 153 13,118 3,690 683 475 260 178 40 50 18,494 264 9,961 11,445 3,096 1,161 501 219 104 68 26,555
North Dakota - 2,984 1,118 236 83 9 14 4 1 4,449 - 3,303 2,093 399 135 68 30 22 31 6,081
Ohio - 14,233 6,596 1,796 882 529 220 100 157 24,511 - 7,088 7,262 2,264 1,011 410 166 92 85 18,378
Oklahoma 524 5,786 6,000 1,336 567 299 165 93 74 14,319 388 2,644 6,287 2,635 1,350 872 400 284 395 14,866
Oregon - 6,462 3,634 733 230 81 26 18 13 11,197 - 3,772 5,368 1,435 567 265 109 45 38 11,600
Pennsylvania - 14,644 9,192 2,933 1,424 767 346 226 237 29,769 - 4,452 7,828 2,405 1,179 628 344 230 267 17,334
Rhode Island - 664 119 18 5 10 - - 1 818 5 124 122 103 129 110 79 56 114 837
South Carolina - 14,393 4,762 1,485 998 783 436 292 329 23,478 106 2,764 6,385 2,129 1,036 473 229 99 99 13,213
South Dakota 15 1,854 3,421 415 119 82 18 12 3 5,923 51 1,044 2,454 970 473 234 114 67 55 5,411
Tennessee - 18,302 4,218 678 357 189 90 60 14 23,907 1 5,749 5,415 1,196 587 276 164 61 51 13,500
Texas 122 25,773 21,258 5,062 1,792 712 264 111 75 55,049 190 23,108 24,429 8,218 3,314 1,505 630 336 296 61,837
Utah - 5,230 3,321 838 185 32 14 2 2 9,624 - 1,093 2,614 1,133 498 200 77 44 18 5,676
Vermont 7 2,215 978 146 57 42 12 - 2 3,453 7 721 776 201 104 40 35 14 31 1,923
Virginia - 11,188 12,192 1,797 482 246 74 25 13 26,016 1 4,094 10,535 3,156 1,091 377 141 69 35 19,499
Washington - 6,411 3,931 1,339 766 420 348 253 230 13,699 2 2,553 5,325 2,243 890 382 156 104 110 11,762
West Virginia - 3,640 2,057 379 188 112 64 27 50 6,517 35 1,454 2,205 1,064 526 284 161 74 162 5,929
Wisconsin - 6,894 5,883 1,992 1,198 650 188 117 82 17,005 17 4,822 6,376 5,338 2,790 1,398 761 360 298 22,142
Wyoming - 4,975 1,742 460 193 68 40 13 10 7,500 - 1,535 2,075 596 269 100 35 17 25 4,653
U.S. Total 1,515 391,226 211,605 57,133 27,264 13,961 6,725 3,396 4,009 715,318 2,813 214,672 256,257 85,871 40,943 20,478 9,610 5,360 5,826 639,017
Puerto Rico 82 32 284 179 120 120 64 121 341 1,261 13 1 54 65 63 86 69 68 129 535
Grand Total 1,597 391,257 211,889 57,311 27,384 14,080 6,789 3,518 4,350 716,579 2,826 214,673 256,311 85,935 41,006 20,563 9,679 5,429 5,955 639,552

NATIONAL HIGHWAY SYSTEM LENGTH - 2019
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

September 30, 2020

(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 5 22,720 7,338 1,645 792 388 179 101 306 33,469
Alaska 59 1,237 1,145 357 199 114 53 34 44 3,184
Arizona 445 14,913 8,036 3,081 1,498 760 349 196 234 29,068
Arkansas - 9,115 8,225 2,637 1,426 807 360 199 172 22,941
California 323 31,826 32,649 13,064 7,090 3,648 1,844 930 1,305 92,355
Colorado - 5,455 11,806 5,121 2,156 1,079 544 263 197 26,622
Connecticut - 1,335 1,210 436 221 94 58 30 21 3,406
Delaware 56 618 1,569 490 197 76 23 25 3 3,001
District of Columbia - - - - - - - - - -
Florida 40 40,341 16,357 2,369 932 413 164 85 111 60,772
Georgia - 17,882 17,673 4,351 1,595 580 267 121 133 42,602
Hawaii - 31 321 227 146 91 58 40 51 966
Idaho 394 7,625 4,601 1,006 439 202 84 39 43 14,038
Illinois 3 16,685 11,616 3,954 1,940 1,198 587 329 365 36,672
Indiana 18 13,702 13,752 4,596 2,762 1,128 601 311 429 37,280
Iowa 211 10,819 11,713 4,777 2,261 996 426 231 237 31,461
Kansas 6 12,792 7,128 1,691 624 309 164 71 47 22,826
Kentucky 8 22,634 9,224 2,663 1,364 824 295 94 131 37,230
Louisiana 401 8,658 7,604 4,324 2,700 1,476 686 306 354 26,108
Maine 18 5,912 2,863 902 510 314 203 140 247 11,092
Maryland - 6,441 4,800 803 418 204 105 75 127 12,973
Massachusetts - 1,959 1,528 551 309 161 91 46 67 4,713
Michigan 50 12,551 14,465 4,098 2,050 1,153 577 308 317 35,517
Minnesota 74 11,388 12,444 3,526 1,811 988 465 231 205 31,058
Mississippi - 14,383 7,837 2,550 1,628 958 421 198 135 28,111
Missouri - 26,245 12,153 2,371 957 438 205 101 68 42,538
Montana - 6,398 5,678 1,271 557 277 102 58 101 14,443
Nebraska 169 6,438 6,846 2,060 869 537 285 142 181 17,359
Nevada - 8,903 1,626 312 149 52 33 13 14 11,102
New Hampshire - 4,460 1,617 402 217 98 68 51 54 6,968
New Jersey - 2,282 2,848 557 399 215 99 83 125 6,607
New Mexico - 11,704 6,098 1,714 883 469 190 135 184 21,377
New York 160 9,398 11,986 4,187 1,995 979 399 300 308 29,552
North Carolina 417 23,079 15,135 3,779 1,636 761 397 144 119 45,049
North Dakota - 6,287 3,211 635 218 77 44 26 32 10,530
Ohio - 21,321 13,858 4,060 1,893 938 386 192 241 42,889
Oklahoma 912 8,429 12,287 3,971 1,917 1,170 565 377 468 29,185
Oregon - 10,234 9,002 2,168 797 346 136 63 51 22,797
Pennsylvania - 19,096 17,020 5,339 2,603 1,395 690 456 504 47,104
Rhode Island 5 788 242 121 134 120 79 56 115 1,654
South Carolina 106 17,158 11,146 3,615 2,034 1,256 665 390 428 36,691
South Dakota 66 2,898 5,876 1,385 591 316 132 79 57 11,334
Tennessee 1 24,051 9,633 1,874 944 465 255 120 65 37,408
Texas 311 48,882 45,687 13,280 5,106 2,218 894 447 372 116,886
Utah - 6,322 5,934 1,971 683 233 91 46 19 15,299
Vermont 15 2,937 1,754 347 161 82 48 14 33 5,376
Virginia 1 15,282 22,727 4,953 1,573 622 216 94 48 45,515
Washington 2 8,965 9,256 3,582 1,656 802 505 356 339 25,461
West Virginia 35 5,094 4,262 1,442 714 396 225 101 212 12,447
Wisconsin 17 11,716 12,259 7,330 3,988 2,048 949 477 379 39,146
Wyoming - 6,510 3,816 1,056 462 168 75 31 35 12,153
U.S. Total 4,328 605,897 467,862 143,003 68,206 34,438 16,335 8,757 9,836 1,354,335
Puerto Rico 94 33 337 243 183 205 134 190 470 1,796
Grand Total 4,422 605,931 468,200 143,247 68,390 34,644 16,469 8,946 10,306 1,356,131

NATIONAL HIGHWAY SYSTEM LENGTH - 2019
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

September 30, 2020

(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 27 14,972 4,069 1,868 1,477 1,132 669 499 915 25,601 422 9,669 10,083 2,806 1,521 834 510 405 1,127 26,955
Alaska - 1,246 533 204 78 59 27 4 13 2,165 2 450 989 542 274 185 93 63 89 2,686
Arizona 543 10,969 6,832 2,077 954 407 183 35 166 21,622 2,044 10,872 11,099 4,778 3,670 2,543 1,520 1,072 1,065 36,620
Arkansas - 5,102 4,771 2,247 1,467 743 494 334 335 15,494 3 895 3,871 2,365 1,487 1,232 747 568 673 11,839
California 860 38,598 68,849 37,768 25,974 15,501 8,526 4,379 4,880 204,475 6,800 33,787 70,843 45,764 38,219 29,836 21,859 18,123 45,953 304,384
Colorado - 4,952 10,211 4,838 3,854 1,771 869 402 301 27,198 29 4,128 12,283 7,625 5,700 3,962 2,483 1,869 3,366 41,416
Connecticut - 12,234 9,545 2,511 1,428 676 294 96 82 26,866 - 3,928 7,868 3,635 2,378 1,589 1,025 613 1,237 22,272
Delaware 227 791 1,358 827 436 128 151 93 88 3,871 58 1,042 3,585 1,805 806 454 262 155 299 8,409
District of Columbia 30 - 211 180 208 241 104 104 351 1,398 99 - 79 186 224 282 297 341 2,447 3,856
Florida - 45,289 27,474 5,428 3,069 2,210 1,322 874 984 86,650 164 48,987 71,093 23,690 11,846 6,824 3,293 1,892 2,515 170,141
Georgia - 42,082 16,192 5,529 2,904 1,437 967 328 381 69,821 - 17,895 24,376 9,079 4,551 2,544 1,366 797 1,190 61,798
Hawaii - 90 1,189 926 1,132 1,022 593 328 383 5,664 16 493 1,228 1,088 1,110 940 641 479 1,394 7,373
Idaho - 2,639 1,541 269 165 64 38 14 2 4,732 2,264 782 1,156 549 386 322 174 148 215 3,731
Illinois 230 16,504 28,760 7,682 5,188 3,487 2,411 1,366 1,543 66,942 305 2,919 13,431 11,421 9,175 6,921 4,533 3,709 7,576 59,684
Indiana 42 5,759 10,095 6,309 4,047 2,245 935 511 616 30,518 108 2,581 4,978 2,369 1,830 924 507 501 349 14,039
Iowa 231 3,467 3,178 927 484 299 108 60 80 8,604 162 1,047 2,627 2,234 1,589 1,096 702 565 1,160 11,020
Kansas 34 4,672 3,286 1,462 845 443 262 126 147 11,243 65 2,399 3,040 1,263 753 531 281 248 323 8,838
Kentucky 63 8,553 5,708 1,669 1,281 668 420 155 88 18,543 109 2,696 5,772 2,754 1,625 939 550 369 446 15,150
Louisiana 778 7,992 5,561 3,007 2,799 3,080 1,648 1,005 966 26,059 1,080 1,753 4,405 2,914 2,631 2,195 1,629 1,286 2,921 19,734
Maine - 2,311 753 215 108 74 26 5 14 3,507 25 229 601 424 324 262 186 117 261 2,404
Maryland 11 17,237 15,977 4,068 2,211 1,393 676 663 1,214 43,438 148 10,976 16,143 6,031 3,915 2,782 2,034 1,622 4,396 47,898
Massachusetts 63 30,051 9,584 2,979 1,824 1,301 601 357 544 47,240 548 10,608 9,635 5,718 5,170 5,291 3,876 3,190 9,836 53,323
Michigan 59 9,253 21,970 6,879 3,747 2,658 1,758 1,062 1,179 48,507 615 5,772 17,972 11,317 8,262 6,197 4,412 3,597 8,044 65,574
Minnesota 13 5,572 10,413 3,847 2,132 1,267 786 266 428 24,711 296 6,170 9,872 3,829 1,909 1,190 601 446 676 24,694
Mississippi - 7,596 2,064 718 684 544 256 91 79 12,031 - 2,781 5,002 2,482 1,704 1,189 777 545 1,219 15,699
Missouri - 21,394 10,534 3,001 2,002 1,264 513 364 315 39,388 - 7,789 10,185 4,329 2,740 2,176 1,229 821 1,549 30,819
Montana - 868 650 102 59 31 12 7 6 1,736 - 399 707 518 422 288 161 158 371 3,023
Nebraska - 1,005 1,977 821 394 296 51 34 18 4,595 65 476 2,016 1,310 996 894 721 642 2,054 9,108
Nevada - 3,748 3,991 2,294 1,733 688 235 112 24 12,825 - 4,413 3,707 2,323 1,852 1,034 480 309 456 14,574
New Hampshire - 4,729 661 105 48 33 - - - 5,576 - 4,312 1,741 616 344 254 152 99 315 7,833
New Jersey - 12,601 17,234 3,971 3,260 1,893 1,450 1,103 1,909 43,421 - 15,999 25,336 9,437 7,248 5,680 4,322 3,603 9,607 81,233
New Mexico - 4,506 1,894 511 449 290 167 62 113 7,992 - 1,483 1,935 1,014 686 469 323 190 543 6,643
New York 1,148 10,014 21,044 9,980 5,253 3,502 2,229 1,566 3,770 57,358 2,712 3,118 21,123 16,764 13,296 11,338 8,453 7,195 17,887 99,175
North Carolina 171 28,127 18,060 6,097 2,635 1,272 576 286 183 57,236 430 10,420 18,370 9,930 6,331 3,631 1,873 1,198 1,765 53,519
North Dakota - 517 642 179 87 30 10 2 - 1,466 2 257 574 455 385 247 179 118 233 2,450
Ohio - 31,617 21,820 6,635 3,789 2,673 1,419 792 900 69,645 98 8,582 13,019 6,149 4,683 3,363 2,407 1,731 4,312 44,246
Oklahoma 965 3,244 5,847 2,267 1,271 892 592 453 361 14,928 349 2,242 4,632 2,271 1,466 981 686 407 518 13,204
Oregon - 6,992 5,597 1,392 809 483 382 117 90 15,864 155 3,090 6,137 3,342 2,179 1,465 1,023 707 1,126 19,069
Pennsylvania 42 16,130 14,504 5,459 3,183 2,319 1,658 876 1,410 45,539 - 6,850 17,717 11,750 8,898 6,821 4,373 2,870 6,317 65,596
Rhode Island - 2,719 1,390 429 240 150 103 31 43 5,106 331 929 1,045 821 780 855 671 584 1,589 7,274
South Carolina - 12,228 5,810 1,808 980 432 228 90 387 21,963 287 2,245 8,483 5,554 3,915 2,687 1,361 877 1,144 26,265
South Dakota 1 304 1,224 388 160 79 45 20 - 2,220 91 58 324 294 205 206 204 131 123 1,544
Tennessee 2 26,062 10,690 3,577 1,713 626 350 200 291 43,509 75 12,789 14,994 5,780 4,019 2,369 1,532 1,114 2,166 44,763
Texas 190 30,912 54,688 26,945 16,936 9,234 3,709 1,591 878 144,892 4,865 24,300 60,684 36,367 26,084 17,904 10,947 7,598 15,795 199,679
Utah - 4,455 10,800 4,029 2,094 1,219 391 130 70 23,187 - 3,070 6,060 3,268 1,811 1,126 543 337 509 16,723
Vermont - 824 539 89 19 17 14 6 1 1,509 52 167 365 178 142 77 51 31 58 1,069
Virginia 110 12,528 21,568 6,867 2,730 1,553 812 253 149 46,461 18 5,053 16,113 10,005 7,066 5,151 2,925 2,039 2,078 50,430
Washington - 12,963 11,139 4,296 2,116 1,613 886 558 499 34,069 191 6,347 12,325 6,736 5,215 3,921 2,621 2,052 4,427 43,644
West Virginia 2 5,101 2,641 725 490 337 233 91 163 9,780 358 777 2,104 1,130 621 456 245 182 600 6,116
Wisconsin 39 5,477 7,374 4,136 3,218 1,619 698 189 110 22,823 727 1,740 5,537 4,931 5,363 4,440 2,847 2,208 4,044 31,111
Wyoming - 527 550 200 100 70 34 29 27 1,538 - 275 476 262 174 145 94 85 163 1,674
U.S. Total 5,883 557,526 522,991 200,736 124,265 75,465 40,922 22,123 27,496 1,571,523 26,169 310,033 567,742 302,200 217,981 159,040 104,788 80,007 178,528 1,920,319
Puerto Rico 371 157 2,426 2,053 2,183 1,646 1,053 1,075 1,956 12,550 117 25 672 844 1,167 1,441 1,291 1,264 3,803 10,507
Grand Total 6,254 557,683 525,418 202,788 126,448 77,111 41,975 23,198 29,452 1,584,073 26,285 310,058 568,414 303,043 219,148 160,481 106,079 81,271 182,330 1,930,826

NATIONAL HIGHWAY SYSTEM LENGTH - 2019
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

September 30, 2020

(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 450 24,641 14,152 4,673 2,998 1,966 1,179 904 2,042 52,556
Alaska 2 1,697 1,522 746 352 244 120 67 102 4,850
Arizona 2,587 21,841 17,931 6,855 4,624 2,950 1,704 1,107 1,231 58,242
Arkansas 3 5,997 8,642 4,613 2,954 1,975 1,242 903 1,008 27,333
California 7,660 72,385 139,693 83,533 64,192 45,337 30,385 22,502 50,833 508,859
Colorado 29 9,080 22,495 12,463 9,554 5,732 3,352 2,271 3,667 68,613
Connecticut - 16,162 17,413 6,145 3,806 2,264 1,319 710 1,319 49,138
Delaware 286 1,833 4,943 2,632 1,242 582 413 248 387 12,281
District of Columbia 129 - 289 365 432 523 401 445 2,798 5,254
Florida 164 94,276 98,567 29,118 14,915 9,033 4,615 2,766 3,499 256,790
Georgia - 59,977 40,568 14,608 7,455 3,980 2,333 1,125 1,572 131,618
Hawaii 16 583 2,416 2,014 2,242 1,962 1,235 806 1,778 13,037
Idaho 2,264 3,421 2,698 818 551 385 212 162 217 8,464
Illinois 535 19,423 42,192 19,103 14,363 10,408 6,944 5,074 9,119 126,625
Indiana 150 8,340 15,073 8,678 5,878 3,170 1,442 1,012 965 44,557
Iowa 393 4,515 5,805 3,162 2,073 1,395 810 625 1,239 19,625
Kansas 99 7,070 6,326 2,725 1,598 974 544 374 470 20,081
Kentucky 173 11,249 11,480 4,423 2,906 1,607 970 524 534 33,692
Louisiana 1,859 9,745 9,966 5,921 5,430 5,276 3,277 2,292 3,887 45,793
Maine 25 2,540 1,354 639 432 337 211 123 274 5,911
Maryland 159 28,212 32,120 10,099 6,126 4,175 2,710 2,285 5,610 91,337
Massachusetts 611 40,659 19,219 8,696 6,994 6,592 4,477 3,547 10,380 100,563
Michigan 674 15,025 39,942 18,196 12,010 8,856 6,170 4,659 9,223 114,081
Minnesota 309 11,742 20,284 7,677 4,042 2,457 1,387 712 1,103 49,404
Mississippi - 10,377 7,065 3,199 2,387 1,733 1,033 636 1,299 27,729
Missouri - 29,183 20,720 7,330 4,742 3,440 1,743 1,185 1,864 70,207
Montana - 1,267 1,357 621 481 319 173 165 376 4,758
Nebraska 65 1,481 3,993 2,131 1,390 1,189 772 676 2,072 13,704
Nevada - 8,161 7,699 4,617 3,585 1,722 716 421 479 27,399
New Hampshire - 9,040 2,402 721 392 287 152 99 315 13,408
New Jersey - 28,600 42,571 13,408 10,508 7,573 5,772 4,706 11,516 124,654
New Mexico - 5,989 3,829 1,525 1,135 759 490 253 656 14,635
New York 3,860 13,132 42,168 26,745 18,548 14,840 10,682 8,761 21,657 156,533
North Carolina 601 38,547 36,430 16,026 8,965 4,904 2,449 1,485 1,948 110,755
North Dakota 2 773 1,216 634 472 278 190 120 233 3,916
Ohio 98 40,199 34,838 12,784 8,473 6,035 3,826 2,523 5,212 113,891
Oklahoma 1,314 5,487 10,479 4,539 2,737 1,872 1,278 861 878 28,131
Oregon 155 10,082 11,734 4,734 2,988 1,948 1,405 825 1,217 34,933
Pennsylvania 42 22,980 32,221 17,210 12,081 9,141 6,031 3,746 7,727 111,136
Rhode Island 331 3,648 2,435 1,249 1,021 1,005 775 615 1,632 12,380
South Carolina 287 14,473 14,292 7,361 4,895 3,118 1,589 967 1,531 48,228
South Dakota 92 362 1,548 681 365 285 249 151 123 3,764
Tennessee 77 38,851 25,684 9,356 5,732 2,995 1,883 1,314 2,457 88,273
Texas 5,054 55,212 115,371 63,312 43,020 27,138 14,656 9,189 16,672 344,570
Utah - 7,525 16,860 7,297 3,905 2,344 934 466 578 39,910
Vermont 52 991 904 267 161 93 65 37 60 2,578
Virginia 129 17,581 37,681 16,871 9,796 6,704 3,737 2,292 2,227 96,890
Washington 191 19,310 23,463 11,032 7,331 5,534 3,507 2,610 4,926 77,713
West Virginia 359 5,878 4,745 1,855 1,111 793 478 273 763 15,896
Wisconsin 766 7,217 12,912 9,067 8,582 6,060 3,545 2,398 4,155 53,933
Wyoming - 801 1,027 463 274 215 129 113 190 3,212
U.S. Total 32,052 867,559 1,090,733 502,935 342,246 234,505 145,710 102,130 206,024 3,491,842
Puerto Rico 487 183 3,099 2,896 3,350 3,087 2,344 2,339 5,759 23,057
Grand Total 32,539 867,741 1,093,832 505,832 345,596 237,593 148,054 104,469 211,783 3,514,899

(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.

 

Page last modified on November 20, 2020
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