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Highway Statistics 2018


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NATIONAL HIGHWAY SYSTEM LENGTH - 2018
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

August 30, 2019
Table HM-47A
Sheet 1 of 4

(THOUSANDS)

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 89 13,178 2,916 703 569 250 111 76 70 17,874 19 7,855 5,612 899 352 197 93 62 85 15,156
Alaska - 612 952 296 189 109 52 28 27 2,267 66 210 373 111 55 44 29 24 47 893
Arizona 35 11,452 4,392 1,446 626 256 161 65 62 18,460 332 3,387 3,254 1,305 819 450 224 119 92 9,650
Arkansas - 6,686 3,343 797 379 241 91 82 67 11,686 1 2,354 4,827 1,786 1,031 572 237 130 97 11,033
California 266 18,092 13,701 5,731 3,112 1,581 871 443 653 44,184 296 11,003 18,126 6,108 3,183 1,718 775 354 404 41,670
Colorado - 3,030 6,006 2,426 751 415 365 199 83 13,276 - 2,684 5,592 2,470 1,116 495 198 92 77 12,722
Connecticut - 876 289 95 33 25 7 3 7 1,335 - 489 877 311 183 85 45 24 11 2,024
Delaware - - - - - - - - - - 39 531 1,527 511 175 60 42 13 1 2,861
Dist. of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 13 24,978 4,305 295 260 99 69 27 40 30,073 10 12,667 13,047 2,254 719 313 109 64 57 29,230
Georgia - 9,252 8,809 1,764 724 304 177 73 86 21,188 - 6,195 8,909 2,500 991 440 166 67 83 19,351
Hawaii - - - - - - - - - - - 20 338 226 132 108 60 35 42 961
Idaho 3 4,594 2,155 478 214 97 30 10 21 7,598 1,159 1,993 2,396 674 281 121 50 31 22 5,567
Illinois - 15,636 7,601 1,630 588 331 110 69 74 26,038 24 1,785 4,509 2,097 1,151 716 352 207 191 11,010
Indiana 421 11,941 4,990 1,747 862 506 349 258 401 21,054 52 6,218 4,688 1,760 1,042 568 258 251 128 14,913
Iowa 368 6,484 5,098 1,423 494 153 63 35 40 13,790 205 3,806 5,979 3,383 1,857 843 390 247 308 16,812
Kansas - 6,255 2,925 710 261 105 31 12 7 10,305 - 6,642 4,148 898 364 189 88 43 32 12,404
Kentucky 70 16,718 3,928 983 656 412 146 44 82 22,969 50 6,892 4,978 1,113 418 220 91 40 52 13,804
Louisiana 90 7,134 4,444 2,760 1,808 860 326 121 90 17,543 580 1,114 3,633 1,634 901 551 350 200 368 8,751
Maine - 4,164 1,233 272 110 56 18 14 4 5,871 1 1,467 1,878 694 388 243 152 116 210 5,148
Maryland - 2,721 2,386 484 238 92 18 22 41 6,001 11 3,451 2,436 406 166 116 68 75 66 6,785
Massachusetts - 1,355 712 135 82 40 13 15 15 2,367 1 472 1,035 391 212 113 65 30 51 2,368
Michigan 56 4,130 6,725 2,186 1,280 730 334 227 126 15,737 0 8,168 7,042 2,163 959 445 225 120 158 19,281
Minnesota 0 4,076 5,514 804 339 147 75 42 41 11,038 1 7,547 6,725 2,638 1,451 811 380 205 195 19,951
Mississippi - 8,504 2,384 767 521 313 131 49 37 12,706 - 4,319 5,954 1,981 1,195 695 340 143 110 14,737
Missouri - 13,960 4,203 609 295 156 83 24 11 19,340 0 11,330 8,266 1,832 690 309 108 64 55 22,654
Montana - 4,007 2,408 415 187 100 36 20 31 7,202 - 2,211 3,287 861 366 181 80 34 76 7,095
Nebraska 63 4,058 3,003 537 285 139 49 9 15 8,096 838 2,776 3,095 1,222 648 348 189 106 142 8,527
Nevada 2 6,145 357 116 35 33 28 12 4 6,730 - 3,365 983 187 105 31 19 13 5 4,708
New Hampshire - 2,504 373 64 29 8 - - - 2,978 - 2,066 1,170 300 152 91 48 28 49 3,906
New Jersey - 1,216 1,723 258 82 11 23 44 - 3,357 - 678 1,260 422 299 247 83 79 110 3,178
New Mexico - 8,764 2,329 713 338 205 80 39 44 12,511 - 3,296 3,429 913 395 216 104 77 82 8,511
New York 139 5,899 6,615 2,218 1,015 436 171 100 142 16,598 128 1,886 6,312 2,241 1,137 598 312 162 166 12,814
North Carolina 11 12,745 4,173 790 524 268 163 62 17 18,744 38 9,378 11,609 3,107 1,193 581 244 126 153 26,390
North Dakota - 2,039 1,946 424 115 36 12 10 3 4,585 - 2,848 2,267 491 177 77 31 21 35 5,946
Ohio - 13,610 7,119 2,082 901 495 222 111 104 24,645 - 7,032 7,360 2,051 810 352 160 82 107 17,955
Oklahoma 26 6,493 6,110 1,164 541 290 116 113 59 14,887 730 2,488 6,261 2,516 1,262 782 419 272 360 14,361
Oregon - 6,282 3,804 692 236 78 25 17 13 11,148 - 3,808 5,428 1,447 571 266 108 44 37 11,708
Pennsylvania - 13,752 10,353 2,668 1,737 650 277 265 241 29,944 - 4,013 7,628 2,362 1,148 653 370 228 291 16,694
Rhode Island - 733 109 21 3 1 2 1 4 873 7 58 93 124 146 120 76 52 118 786
South Carolina - 14,922 5,622 1,279 636 276 113 54 23 22,925 - 2,112 6,265 2,355 1,172 592 261 153 128 13,039
South Dakota - 2,148 3,032 333 126 59 28 12 - 5,738 48 1,160 2,227 986 502 237 120 75 51 5,358
Tennessee 1 18,642 3,375 480 316 166 76 50 7 23,111 176 5,454 5,278 1,171 542 282 129 68 42 12,966
Texas 30 24,415 21,088 4,861 1,617 738 252 82 89 53,141 348 21,818 24,396 8,844 3,673 1,626 638 302 291 61,588
Utah - 5,638 2,941 637 112 59 14 10 5 9,416 27 1,230 2,638 1,005 398 178 65 35 32 5,580
Vermont 2 2,260 887 148 79 26 8 1 3 3,412 4 653 753 209 100 73 48 36 57 1,929
Virginia - 10,688 12,224 1,860 494 264 43 21 14 25,608 30 3,791 10,640 3,161 1,108 374 160 72 46 19,351
Washington - 5,718 4,120 1,318 880 669 325 289 307 13,626 - 2,775 5,751 1,785 645 341 143 108 143 11,691
West Virginia 8 3,564 2,264 480 237 130 90 25 40 6,831 110 1,485 2,314 1,017 537 288 138 76 80 5,937
Wisconsin - 7,664 4,672 1,674 1,640 780 267 205 147 17,049 26 5,481 6,873 4,493 2,652 1,514 696 348 378 22,435
Wyoming - 4,450 1,816 547 218 111 44 15 22 7,224 23 1,563 1,926 525 231 80 29 14 27 4,395
U.S. Total 1,692 384,186 211,473 54,319 26,774 13,305 6,094 3,504 3,421 703,075 5,380 206,024 255,392 83,939 39,802 20,552 9,561 5,370 5,946 626,587
Puerto Rico 2 25 245 194 103 108 98 112 346 1,232 5 1 45 60 55 74 59 87 152 534
Grand Total 1,693 384,210 211,719 54,513 26,877 13,413 6,192 3,615 3,767 704,307 5,386 206,025 255,438 83,999 39,857 20,626 9,621 5,457 6,098 627,121

NATIONAL HIGHWAY SYSTEM LENGTH - 2018
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - RURAL

August 30, 2019
Table HM-47A
Sheet 2 of 4

(THOUSANDS)

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 108 21,033 8,528 1,602 921 447 204 138 156 33,030
Alaska 66 822 1,325 407 244 153 81 53 74 3,159
Arizona 368 14,839 7,646 2,751 1,446 706 384 184 154 28,111
Arkansas 1 9,040 8,170 2,583 1,409 813 327 212 164 22,719
California 562 29,095 31,827 11,838 6,294 3,299 1,646 797 1,057 85,854
Colorado - 5,713 11,598 4,896 1,867 910 563 291 159 25,998
Connecticut - 1,365 1,166 406 216 110 52 26 18 3,359
Delaware 39 531 1,527 511 175 60 42 13 1 2,861
Dist. of Columbia - - - - - - - - - -
Florida 23 37,645 17,352 2,549 979 412 178 91 97 59,303
Georgia - 15,446 17,718 4,264 1,714 744 343 140 169 40,539
Hawaii - 20 338 226 132 108 60 35 42 961
Idaho 1,162 6,586 4,552 1,152 495 218 79 40 43 13,165
Illinois 24 17,421 12,111 3,727 1,739 1,047 462 276 265 37,048
Indiana 473 18,159 9,679 3,507 1,904 1,074 606 509 529 35,968
Iowa 573 10,290 11,077 4,806 2,352 995 452 282 348 30,602
Kansas - 12,898 7,073 1,607 625 293 119 55 38 22,709
Kentucky 120 23,611 8,906 2,096 1,074 632 237 84 133 36,773
Louisiana 670 8,248 8,076 4,395 2,710 1,411 676 321 457 26,294
Maine 1 5,630 3,111 966 498 300 170 130 214 11,019
Maryland 11 6,173 4,822 890 404 208 86 97 106 12,786
Massachusetts 1 1,827 1,747 525 294 153 77 45 67 4,736
Michigan 56 12,298 13,767 4,349 2,239 1,175 559 347 284 35,019
Minnesota 1 11,623 12,239 3,442 1,790 958 455 247 236 30,989
Mississippi - 12,822 8,338 2,748 1,717 1,008 471 193 147 27,444
Missouri 0 25,290 12,469 2,441 985 465 190 88 66 41,995
Montana - 6,218 5,694 1,276 553 280 116 53 107 14,298
Nebraska 901 6,834 6,098 1,759 933 487 238 115 157 16,623
Nevada 2 9,510 1,340 303 140 64 47 25 9 11,437
New Hampshire - 4,571 1,543 364 181 99 48 28 49 6,884
New Jersey - 1,895 2,983 679 381 259 106 123 110 6,535
New Mexico - 12,060 5,758 1,625 733 421 184 116 126 21,022
New York 267 7,785 12,928 4,459 2,153 1,034 484 263 308 29,412
North Carolina 49 22,124 15,782 3,897 1,717 849 407 187 170 45,133
North Dakota - 4,887 4,212 915 292 113 44 30 38 10,531
Ohio - 20,642 14,480 4,133 1,711 848 383 193 211 42,600
Oklahoma 756 8,981 12,371 3,680 1,803 1,072 535 385 419 29,248
Oregon - 10,090 9,232 2,139 807 345 132 61 50 22,856
Pennsylvania - 17,765 17,981 5,031 2,886 1,303 647 493 532 46,638
Rhode Island 7 791 201 145 149 121 77 53 122 1,659
South Carolina - 17,034 11,887 3,634 1,809 869 374 207 151 35,964
South Dakota 48 3,308 5,259 1,319 628 296 148 87 51 11,096
Tennessee 176 24,096 8,653 1,651 858 448 205 119 49 36,077
Texas 377 46,233 45,484 13,704 5,290 2,364 890 383 380 114,729
Utah 27 6,868 5,578 1,642 510 237 79 45 36 14,995
Vermont 6 2,913 1,639 358 179 99 56 37 60 5,341
Virginia 30 14,478 22,864 5,021 1,602 638 203 93 59 44,959
Washington - 8,493 9,871 3,103 1,525 1,011 468 397 449 25,318
West Virginia 117 5,049 4,578 1,497 775 419 228 101 120 12,768
Wisconsin 26 13,145 11,545 6,167 4,291 2,293 962 554 525 39,484
Wyoming 23 6,013 3,742 1,072 449 191 73 29 49 11,619
U.S. Total 7,072 590,209 466,866 138,258 66,576 33,857 15,656 8,874 9,367 1,329,663
Puerto Rico 7 26 291 254 158 182 158 199 498 1,766
Grand Total 7,079 590,235 467,156 138,512 66,734 34,039 15,813 9,072 9,865 1,331,428

NATIONAL HIGHWAY SYSTEM LENGTH - 2018
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

August 30, 2019
Table HM-47A
Sheet 3 of 4

(THOUSANDS)

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 43 14,407 4,390 1,809 1,619 1,364 914 486 387 25,378 120 8,795 10,111 3,251 1,662 981 685 410 712 26,608
Alaska - 1,006 588 251 99 66 24 3 26 2,062 13 297 720 508 341 307 142 141 223 2,678
Arizona 370 11,596 6,673 1,795 752 245 101 38 41 21,240 1,767 12,159 11,492 4,584 3,312 2,592 1,596 1,143 970 37,849
Arkansas - 5,289 4,703 2,104 1,251 795 410 306 268 15,126 11 875 3,819 2,358 1,484 1,237 734 555 670 11,732
California 2,777 35,478 69,080 36,709 27,936 16,609 8,541 5,679 4,823 204,855 597 30,916 71,207 51,354 41,070 34,419 23,817 19,866 44,570 317,219
Colorado - 4,755 10,198 4,802 3,874 1,726 849 406 274 26,883 11 4,148 12,409 7,419 5,622 4,097 2,411 1,741 3,351 41,198
Connecticut - 12,207 9,185 2,796 1,441 808 254 173 266 27,130 - 3,881 7,499 3,523 2,382 1,728 983 681 1,278 21,956
Delaware - 654 1,691 643 408 271 228 66 121 4,082 27 870 3,905 1,643 758 486 319 151 340 8,473
Dist. of Columbia 30 - 119 - 496 - 294 - 437 1,345 - - 116 - 653 3 1,023 9 2,120 3,923
Florida - 42,280 29,383 4,984 2,626 2,111 1,105 736 589 83,813 71 42,231 72,132 23,576 12,043 6,974 3,276 2,092 3,060 165,384
Georgia - 38,152 17,495 5,457 2,609 1,300 792 411 337 66,553 44 14,884 23,702 8,154 4,468 2,683 1,513 983 1,646 58,035
Hawaii - 87 1,239 1,135 944 1,232 515 277 271 5,700 - 352 1,184 1,294 1,062 1,061 632 450 1,073 7,109
Idaho 6 2,579 1,456 320 201 68 30 6 5 4,666 1,503 999 1,489 603 382 330 171 132 168 4,273
Illinois 50 16,930 31,191 8,013 5,095 3,479 2,065 1,200 1,016 68,988 321 3,137 13,456 10,993 9,115 6,838 4,769 3,694 7,506 59,508
Indiana 125 9,905 7,844 4,839 3,162 1,869 1,009 563 659 29,850 674 4,215 3,517 2,012 1,372 943 568 379 467 13,473
Iowa 524 3,267 2,873 992 495 246 90 87 58 8,107 169 1,067 2,478 2,136 1,652 1,114 688 580 1,358 11,072
Kansas 26 5,264 2,845 1,456 982 503 241 86 73 11,450 3 2,793 2,750 1,227 798 529 351 182 271 8,900
Kentucky 108 8,571 5,415 1,821 1,386 657 328 162 148 18,489 690 3,882 4,622 2,164 1,573 914 541 331 495 14,522
Louisiana 814 6,946 6,006 3,359 3,199 3,374 1,997 1,092 1,015 26,989 1,551 1,999 4,849 3,240 2,999 2,580 2,020 1,769 3,585 23,039
Maine - 2,146 823 238 127 85 11 7 9 3,446 1 217 638 457 368 267 147 83 285 2,462
Maryland 11 17,873 15,745 3,940 1,800 1,269 658 673 1,149 43,107 302 10,171 16,390 6,017 3,792 2,908 1,896 1,730 4,246 47,151
Massachusetts 4 29,394 10,222 3,138 1,776 1,330 793 436 584 47,673 477 10,049 9,493 5,857 5,469 5,871 4,218 3,615 10,456 55,028
Michigan 55 7,727 22,038 6,862 4,520 3,037 1,884 1,405 1,473 48,946 153 6,229 18,142 11,639 8,397 6,449 4,565 3,675 7,876 66,971
Minnesota 0 5,638 10,656 4,118 2,016 1,196 668 355 339 24,987 47 6,156 9,701 3,969 2,103 1,213 621 396 662 24,821
Mississippi - 6,739 2,216 991 705 502 245 106 75 11,580 - 2,481 4,917 2,735 1,735 1,110 766 515 1,304 15,564
Missouri - 21,587 10,436 3,046 1,901 1,206 542 309 266 39,294 9 7,244 10,230 4,355 2,775 2,155 1,153 872 1,463 30,247
Montana - 724 776 116 63 32 14 8 8 1,741 60 355 659 542 370 291 199 165 408 2,988
Nebraska 177 1,260 1,709 671 396 181 101 42 46 4,406 1,643 482 1,803 1,066 741 692 568 495 1,583 7,431
Nevada 134 3,751 3,590 1,943 1,824 717 371 257 187 12,640 90 4,574 3,829 2,323 1,368 944 429 237 321 14,025
New Hampshire - 4,427 863 162 62 21 14 - - 5,549 1 4,124 1,847 552 384 244 193 114 364 7,821
New Jersey - 12,796 16,682 4,087 2,705 2,037 1,434 957 1,615 42,312 - 16,657 24,525 10,052 6,828 5,683 4,130 3,298 9,607 80,781
New Mexico - 4,594 1,526 552 390 290 119 100 81 7,651 - 1,543 1,648 1,010 722 454 278 193 528 6,376
New York 4,310 10,355 21,416 9,209 4,928 3,389 1,874 1,239 1,979 54,388 4,606 3,048 22,136 16,520 13,043 10,748 7,751 6,418 18,286 97,951
North Carolina 96 25,372 17,613 6,429 3,274 1,689 704 276 150 55,506 708 10,389 18,848 9,985 6,169 3,852 2,026 1,267 2,045 54,581
North Dakota - 335 740 249 112 58 25 4 4 1,527 0 177 577 455 418 230 178 103 300 2,438
Ohio - 27,431 24,613 7,930 4,331 2,664 1,191 794 899 69,854 - 8,469 12,723 6,306 4,395 3,435 2,281 1,789 4,402 43,801
Oklahoma 47 4,049 5,970 2,253 1,121 899 609 399 364 15,663 440 2,664 5,072 2,297 1,816 1,176 637 419 584 14,665
Oregon - 6,250 5,941 1,465 831 564 407 239 122 15,818 24 3,340 6,146 3,333 2,178 1,473 1,033 714 1,159 19,377
Pennsylvania - 14,829 15,350 5,284 3,202 2,035 1,286 926 1,308 44,221 - 6,061 17,940 11,675 9,124 6,819 4,487 3,139 6,220 65,465
Rhode Island - 1,669 2,452 539 310 131 46 4 94 5,245 287 1,044 1,370 891 942 870 739 647 1,794 8,296
South Carolina - 10,856 6,021 2,020 1,363 587 273 133 108 21,361 - 1,879 8,754 5,736 3,882 2,617 1,268 752 935 25,822
South Dakota - 374 1,212 275 140 82 30 14 3 2,129 105 40 359 258 248 203 160 133 101 1,503
Tennessee 17 26,603 9,521 3,447 1,454 714 487 162 273 42,661 99 10,902 15,166 6,080 3,951 2,504 1,756 1,036 2,085 43,478
Texas 447 30,774 51,486 26,027 16,219 9,724 4,384 2,007 969 141,590 5,713 21,614 55,725 34,790 26,280 18,286 11,436 7,780 19,704 195,614
Utah - 4,569 10,275 3,835 2,119 1,267 350 228 59 22,702 179 2,945 6,037 3,001 1,804 1,075 516 315 564 16,257
Vermont - 954 476 83 52 15 2 4 1 1,587 21 125 363 188 124 88 47 49 103 1,088
Virginia 59 12,043 22,273 6,796 2,750 1,709 720 317 212 46,819 481 4,844 16,023 9,434 7,092 5,158 2,977 2,014 1,974 49,516
Washington - 10,086 12,085 4,441 2,520 1,506 1,131 996 1,353 34,118 - 5,473 12,194 6,550 5,091 3,641 2,540 2,164 6,042 43,695
West Virginia 6 4,785 2,755 918 566 368 228 100 113 9,833 60 581 2,287 1,305 816 539 285 272 354 6,439
Wisconsin 232 6,548 7,245 3,349 2,556 1,636 453 422 288 22,497 162 3,180 5,617 5,083 4,814 4,213 2,690 1,853 4,194 31,643
Wyoming - 453 434 275 153 81 36 25 37 1,495 10 293 546 278 182 132 97 85 211 1,824
U.S. Total 10,468 536,364 527,534 197,975 124,860 77,744 40,877 24,718 24,981 1,555,052 23,251 294,851 563,163 304,776 220,170 165,156 108,304 81,624 184,026 1,922,069
Puerto Rico 339 115 2,289 1,967 1,919 1,617 979 1,077 2,570 12,533 233 25 671 815 1,196 1,381 1,271 1,184 4,079 10,622
Grand Total 10,808 536,478 529,822 199,942 126,779 79,361 41,856 25,795 27,551 1,567,584 23,484 294,876 563,834 305,591 221,366 166,537 109,575 82,808 188,105 1,932,691

NATIONAL HIGHWAY SYSTEM LENGTH - 2018
  DAILY TRAVEL BY MEASURED PAVEMENT ROUGHNESS - URBAN

August 30, 2019
Table HM-47A
Sheet 4 of 4

(THOUSANDS)

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 162 23,202 14,502 5,061 3,281 2,345 1,599 897 1,099 51,985
Alaska 13 1,303 1,308 759 440 373 166 144 248 4,740
Arizona 2,137 23,756 18,165 6,379 4,064 2,836 1,696 1,181 1,011 59,088
Arkansas 11 6,165 8,522 4,462 2,736 2,031 1,144 861 938 26,858
California 3,374 66,394 140,287 88,063 69,006 51,028 32,358 25,545 49,393 522,073
Colorado 11 8,903 22,606 12,221 9,495 5,823 3,260 2,147 3,626 68,081
Connecticut - 16,088 16,684 6,319 3,824 2,537 1,237 853 1,544 49,086
Delaware 27 1,524 5,596 2,286 1,166 757 546 218 462 12,555
Dist. of Columbia 30 - 235 - 1,149 3 1,317 9 2,557 5,269
Florida 71 84,511 101,515 28,560 14,669 9,084 4,382 2,828 3,648 249,197
Georgia 44 53,036 41,197 13,612 7,078 3,983 2,305 1,394 1,983 124,588
Hawaii - 440 2,423 2,430 2,007 2,293 1,146 727 1,344 12,809
Idaho 1,509 3,579 2,945 923 583 398 201 138 173 8,939
Illinois 371 20,066 44,647 19,006 14,210 10,318 6,833 4,894 8,522 128,496
Indiana 799 14,120 11,362 6,851 4,534 2,812 1,577 942 1,125 43,323
Iowa 693 4,334 5,351 3,127 2,147 1,360 778 666 1,417 19,179
Kansas 29 8,057 5,596 2,683 1,779 1,032 592 268 344 20,350
Kentucky 799 12,453 10,038 3,985 2,959 1,571 869 493 643 33,011
Louisiana 2,364 8,945 10,855 6,599 6,198 5,954 4,017 2,861 4,600 50,028
Maine 1 2,363 1,461 695 495 351 158 90 294 5,908
Maryland 313 28,044 32,135 9,957 5,592 4,178 2,554 2,403 5,396 90,258
Massachusetts 481 39,443 19,715 8,995 7,245 7,201 5,010 4,050 11,041 102,701
Michigan 208 13,956 40,181 18,501 12,917 9,486 6,449 5,079 9,350 115,917
Minnesota 47 11,794 20,357 8,087 4,119 2,410 1,290 751 1,001 49,808
Mississippi - 9,220 7,133 3,726 2,441 1,612 1,012 621 1,379 27,144
Missouri 9 28,832 20,666 7,401 4,676 3,362 1,695 1,181 1,729 69,541
Montana 60 1,079 1,435 658 433 322 213 173 416 4,728
Nebraska 1,821 1,742 3,512 1,737 1,137 873 670 536 1,629 11,837
Nevada 224 8,325 7,419 4,266 3,191 1,661 801 493 509 26,665
New Hampshire 1 8,551 2,710 714 446 265 207 114 364 13,370
New Jersey - 29,453 41,207 14,140 9,533 7,720 5,564 4,255 11,221 123,093
New Mexico - 6,137 3,173 1,562 1,113 744 397 293 609 14,028
New York 8,916 13,404 43,552 25,729 17,971 14,137 9,625 7,657 20,265 152,339
North Carolina 804 35,761 36,461 16,413 9,443 5,541 2,730 1,542 2,195 110,087
North Dakota 0 511 1,316 704 530 288 204 107 303 3,965
Ohio - 35,900 37,336 14,236 8,726 6,099 3,473 2,583 5,302 113,655
Oklahoma 487 6,713 11,043 4,549 2,937 2,075 1,245 818 949 30,328
Oregon 24 9,590 12,087 4,798 3,009 2,037 1,440 953 1,281 35,195
Pennsylvania - 20,890 33,290 16,959 12,327 8,854 5,773 4,064 7,528 109,685
Rhode Island 287 2,712 3,822 1,430 1,252 1,000 785 650 1,888 13,540
South Carolina - 12,735 14,775 7,756 5,245 3,204 1,540 885 1,043 47,184
South Dakota 105 414 1,570 532 388 285 189 147 105 3,632
Tennessee 116 37,505 24,687 9,527 5,405 3,217 2,243 1,198 2,357 86,139
Texas 6,160 52,388 107,211 60,817 42,499 28,010 15,820 9,787 20,672 337,204
Utah 179 7,514 16,312 6,835 3,923 2,342 865 543 623 38,959
Vermont 21 1,079 839 271 175 104 49 53 105 2,675
Virginia 540 16,887 38,296 16,230 9,842 6,867 3,697 2,330 2,186 96,335
Washington - 15,559 24,279 10,991 7,611 5,147 3,671 3,160 7,396 77,813
West Virginia 66 5,366 5,042 2,222 1,383 907 513 371 467 16,271
Wisconsin 393 9,728 12,862 8,432 7,370 5,850 3,143 2,275 4,481 54,140
Wyoming 10 746 981 553 334 213 133 111 248 3,319
U.S. Total 33,719 831,215 1,090,697 502,751 345,030 242,899 149,180 106,342 209,007 3,477,121
Puerto Rico 572 139 2,960 2,782 3,115 2,998 2,251 2,261 6,649 23,154
Grand Total 34,291 831,354 1,093,656 505,532 348,146 245,897 151,431 108,603 215,656 3,500,275

(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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