U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
January 29, 2024
INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
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 | - | 461 | 52 | 23 | 16 | 8 | 5 | 2 | 3 | 570 | 4 | 1,101 | 663 | 137 | 56 | 28 | 10 | 7 | 5 | 2,008 |
Alaska | 1 | 211 | 363 | 159 | 103 | 71 | 36 | 23 | 34 | 1,001 | 278 | 126 | 214 | 79 | 75 | 59 | 43 | 35 | 78 | 710 |
Arizona | 9 | 556 | 190 | 64 | 42 | 25 | 11 | 9 | 10 | 907 | 8 | 340 | 405 | 195 | 117 | 67 | 34 | 17 | 18 | 1,195 |
Arkansas | - | 255 | 116 | 32 | 19 | 11 | 6 | 3 | 5 | 445 | - | 479 | 808 | 306 | 163 | 87 | 42 | 23 | 28 | 1,937 |
California | 1 | 449 | 395 | 151 | 99 | 56 | 27 | 16 | 17 | 1,209 | 53 | 889 | 1,659 | 679 | 369 | 215 | 102 | 59 | 84 | 4,056 |
Colorado | - | 85 | 311 | 123 | 52 | 31 | 17 | 12 | 16 | 648 | - | 576 | 1,091 | 428 | 224 | 122 | 59 | 38 | 39 | 2,576 |
Connecticut | - | 19 | 8 | 1 | 1 | - | - | - | - | 29 | - | 23 | 63 | 35 | 19 | 8 | 5 | 2 | 2 | 158 |
Delaware | - | - | - | - | - | - | - | - | - | - | - | 33 | 73 | 20 | 6 | 3 | 2 | 1 | 1 | 138 |
District of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Florida | 3 | 599 | 93 | 13 | 6 | 2 | 1 | - | - | 715 | - | 1,296 | 1,046 | 258 | 95 | 42 | 15 | 6 | 7 | 2,765 |
Georgia | - | 341 | 153 | 23 | 12 | 6 | 2 | 1 | 1 | 538 | - | 1,302 | 1,311 | 394 | 153 | 54 | 18 | 8 | 7 | 3,247 |
Hawaii | - | - | - | - | - | - | - | - | - | - | 1 | 5 | 30 | 18 | 10 | 7 | 4 | 2 | 3 | 79 |
Idaho | 9 | 327 | 138 | 28 | 13 | 5 | 3 | 1 | 2 | 516 | 65 | 593 | 699 | 198 | 81 | 37 | 16 | 9 | 7 | 1,639 |
Illinois | - | 805 | 301 | 75 | 30 | 18 | 9 | 4 | 6 | 1,247 | - | 604 | 847 | 403 | 243 | 144 | 73 | 46 | 50 | 2,411 |
Indiana | - | 482 | 205 | 64 | 32 | 14 | 6 | 4 | 5 | 812 | 4 | 882 | 543 | 173 | 86 | 34 | 11 | 5 | 3 | 1,737 |
Iowa | - | 264 | 231 | 68 | 28 | 12 | 4 | 2 | 3 | 611 | 14 | 892 | 1,189 | 581 | 350 | 188 | 96 | 57 | 58 | 3,411 |
Kansas | 1 | 412 | 154 | 42 | 22 | 6 | 2 | 1 | 1 | 639 | 2 | 1,638 | 1,042 | 189 | 77 | 40 | 18 | 12 | 13 | 3,029 |
Kentucky | 1 | 505 | 136 | 34 | 18 | 8 | 5 | 2 | 1 | 710 | 6 | 884 | 546 | 127 | 53 | 21 | 7 | 6 | 4 | 1,648 |
Louisiana | - | 186 | 125 | 91 | 60 | 41 | 15 | 6 | 3 | 527 | 3 | 114 | 392 | 227 | 149 | 94 | 55 | 33 | 31 | 1,095 |
Maine | - | 228 | 42 | 6 | 1 | 1 | - | - | - | 279 | 1 | 364 | 247 | 76 | 41 | 28 | 16 | 11 | 18 | 800 |
Maryland | - | 67 | 57 | 11 | 4 | 2 | 1 | - | 1 | 142 | 1 | 186 | 153 | 27 | 10 | 6 | 4 | 2 | 4 | 391 |
Massachusetts | - | 36 | 16 | 4 | 2 | 2 | 1 | 1 | 1 | 63 | - | 93 | 179 | 61 | 32 | 19 | 10 | 8 | 9 | 410 |
Michigan | 4 | 304 | 170 | 31 | 24 | 14 | 7 | 5 | 4 | 558 | 10 | 1,426 | 716 | 171 | 78 | 40 | 21 | 12 | 13 | 2,476 |
Minnesota | - | 297 | 236 | 37 | 12 | 3 | 2 | - | - | 588 | - | 1,452 | 1,266 | 405 | 193 | 95 | 42 | 21 | 18 | 3,492 |
Mississippi | - | 361 | 147 | 32 | 16 | 11 | 6 | 2 | 2 | 578 | - | 504 | 695 | 255 | 150 | 100 | 50 | 28 | 31 | 1,813 |
Missouri | - | 634 | 146 | 36 | 15 | 9 | 4 | 2 | 1 | 847 | - | 1,280 | 1,149 | 322 | 138 | 62 | 27 | 12 | 11 | 2,999 |
Montana | - | 552 | 425 | 72 | 30 | 11 | 3 | 2 | - | 1,095 | - | 755 | 1,226 | 434 | 195 | 83 | 38 | 19 | 21 | 2,772 |
Nebraska | 1 | 208 | 147 | 36 | 15 | 5 | 2 | 1 | - | 414 | 4 | 930 | 1,007 | 333 | 189 | 104 | 48 | 30 | 36 | 2,678 |
Nevada | - | 411 | 30 | 8 | 4 | 2 | 1 | - | - | 457 | - | 897 | 482 | 109 | 49 | 18 | 7 | 3 | 1 | 1,567 |
New Hampshire | - | 117 | 17 | 6 | 1 | 1 | - | - | - | 142 | - | 191 | 129 | 33 | 14 | 9 | 6 | 3 | 3 | 387 |
New Jersey | - | 20 | 19 | 4 | 1 | 1 | - | - | - | 45 | - | 85 | 73 | 17 | 8 | 5 | 3 | 2 | 2 | 195 |
New Mexico | - | 502 | 195 | 61 | 35 | 23 | 11 | 9 | 8 | 844 | - | 569 | 652 | 240 | 129 | 75 | 39 | 20 | 24 | 1,750 |
New York | 8 | 352 | 275 | 76 | 42 | 25 | 10 | 6 | 11 | 797 | 35 | 339 | 1,140 | 388 | 187 | 103 | 48 | 28 | 24 | 2,257 |
North Carolina | - | 447 | 114 | 16 | 9 | 4 | 2 | 1 | 2 | 595 | 27 | 603 | 974 | 354 | 131 | 51 | 19 | 10 | 9 | 2,152 |
North Dakota | - | 332 | 142 | 25 | 7 | 2 | 1 | - | 1 | 510 | - | 1,351 | 1,050 | 301 | 132 | 56 | 23 | 13 | 19 | 2,946 |
Ohio | - | 410 | 158 | 39 | 18 | 11 | 4 | 2 | 2 | 643 | 1 | 727 | 763 | 231 | 100 | 45 | 17 | 10 | 7 | 1,901 |
Oklahoma | 10 | 314 | 235 | 43 | 22 | 12 | 7 | 4 | 2 | 639 | 31 | 498 | 926 | 399 | 216 | 114 | 56 | 36 | 48 | 2,292 |
Oregon | - | 302 | 144 | 33 | 8 | 5 | 2 | 1 | 1 | 495 | 1 | 723 | 1,291 | 363 | 143 | 64 | 28 | 19 | 24 | 2,656 |
Pennsylvania | - | 580 | 321 | 74 | 41 | 22 | 12 | 7 | 10 | 1,066 | - | 462 | 868 | 301 | 136 | 63 | 34 | 18 | 26 | 1,907 |
Rhode Island | - | 13 | 3 | 1 | - | - | - | - | - | 18 | 1 | 16 | 19 | 13 | 17 | 17 | 11 | 7 | 6 | 106 |
South Carolina | 18 | 349 | 110 | 32 | 19 | 11 | 5 | 2 | 1 | 529 | 5 | 378 | 736 | 237 | 123 | 59 | 25 | 12 | 11 | 1,580 |
South Dakota | - | 335 | 227 | 17 | 6 | 3 | 1 | 1 | - | 591 | - | 961 | 1,142 | 416 | 201 | 86 | 41 | 22 | 19 | 2,889 |
Tennessee | - | 520 | 78 | 22 | 12 | 7 | 3 | 1 | 2 | 645 | - | 737 | 653 | 169 | 88 | 50 | 21 | 15 | 10 | 1,742 |
Texas | 5 | 878 | 807 | 200 | 69 | 32 | 13 | 6 | 3 | 2,008 | 46 | 2,933 | 3,250 | 1,230 | 553 | 248 | 96 | 41 | 31 | 8,382 |
Utah | - | 380 | 226 | 53 | 17 | 5 | 2 | 1 | - | 685 | - | 276 | 507 | 216 | 112 | 49 | 16 | 6 | 4 | 1,186 |
Vermont | - | 169 | 64 | 10 | 5 | 3 | 2 | 2 | 1 | 255 | - | 91 | 130 | 36 | 18 | 11 | 5 | 3 | 12 | 307 |
Virginia | - | 300 | 235 | 38 | 11 | 4 | 1 | 1 | - | 591 | - | 287 | 891 | 336 | 155 | 61 | 21 | 11 | 5 | 1,768 |
Washington | - | 215 | 127 | 37 | 22 | 11 | 6 | 5 | 6 | 429 | - | 341 | 866 | 389 | 167 | 78 | 34 | 24 | 24 | 1,924 |
West Virginia | 1 | 186 | 91 | 19 | 10 | 7 | 3 | 2 | 1 | 319 | 15 | 145 | 380 | 207 | 122 | 65 | 34 | 25 | 26 | 1,004 |
Wisconsin | - | 291 | 126 | 54 | 23 | 10 | 5 | 2 | 1 | 512 | 13 | 1,133 | 872 | 478 | 309 | 173 | 83 | 48 | 47 | 3,143 |
Wyoming | - | 518 | 187 | 55 | 26 | 12 | 5 | 2 | 1 | 807 | 55 | 642 | 873 | 244 | 97 | 36 | 11 | 6 | 5 | 1,914 |
U.S. Total | 71 | 16,585 | 8,286 | 2,182 | 1,082 | 581 | 272 | 154 | 168 | 29,311 | 688 | 33,152 | 37,929 | 13,241 | 6,560 | 3,322 | 1,546 | 889 | 987 | 97,627 |
Puerto Rico | - | 3 | 14 | 9 | 5 | 4 | 3 | 4 | 13 | 54 | - | - | 5 | 11 | 12 | 12 | 7 | 6 | 13 | 67 |
Grand Total | 71 | 16,588 | 8,300 | 2,190 | 1,087 | 585 | 275 | 158 | 181 | 29,365 | 688 | 33,152 | 37,934 | 13,253 | 6,572 | 3,334 | 1,553 | 896 | 1,000 | 97,694 |
January 29, 2024
INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
STATE | TOTAL RURAL NHS | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
NOT REPORTED (2) | < 60 | 60-94 | 95-119 | 120-144 | 145-170 | 171-194 | 195-220 | > 220 | TOTAL REPORTED | |
Alabama | 4 | 1,562 | 715 | 161 | 72 | 36 | 15 | 9 | 8 | 2,578 |
Alaska | 279 | 338 | 577 | 239 | 179 | 130 | 80 | 58 | 112 | 1,710 |
Arizona | 17 | 896 | 595 | 259 | 159 | 92 | 46 | 27 | 29 | 2,102 |
Arkansas | - | 734 | 924 | 338 | 182 | 98 | 48 | 26 | 34 | 2,383 |
California | 54 | 1,339 | 2,053 | 830 | 468 | 270 | 129 | 75 | 101 | 5,265 |
Colorado | - | 661 | 1,402 | 551 | 276 | 153 | 76 | 51 | 55 | 3,224 |
Connecticut | - | 41 | 71 | 36 | 20 | 8 | 5 | 2 | 2 | 186 |
Delaware | - | 33 | 73 | 20 | 6 | 3 | 2 | 1 | 1 | 138 |
District of Columbia | - | - | - | - | - | - | - | - | - | - |
Florida | 3 | 1,894 | 1,140 | 271 | 102 | 44 | 16 | 6 | 7 | 3,480 |
Georgia | - | 1,643 | 1,463 | 417 | 165 | 60 | 20 | 9 | 8 | 3,786 |
Hawaii | 1 | 5 | 30 | 18 | 10 | 7 | 4 | 2 | 3 | 79 |
Idaho | 74 | 920 | 837 | 226 | 94 | 42 | 18 | 10 | 9 | 2,155 |
Illinois | - | 1,409 | 1,148 | 478 | 273 | 162 | 82 | 50 | 56 | 3,658 |
Indiana | 4 | 1,364 | 749 | 236 | 118 | 48 | 17 | 9 | 8 | 2,549 |
Iowa | 14 | 1,156 | 1,420 | 649 | 378 | 200 | 100 | 60 | 60 | 4,023 |
Kansas | 2 | 2,050 | 1,196 | 231 | 99 | 46 | 20 | 13 | 14 | 3,668 |
Kentucky | 7 | 1,390 | 682 | 161 | 71 | 29 | 12 | 8 | 5 | 2,358 |
Louisiana | 4 | 300 | 518 | 318 | 208 | 136 | 70 | 39 | 34 | 1,622 |
Maine | 1 | 592 | 290 | 82 | 42 | 29 | 16 | 11 | 18 | 1,079 |
Maryland | 1 | 253 | 209 | 38 | 14 | 8 | 4 | 2 | 5 | 533 |
Massachusetts | - | 129 | 195 | 65 | 34 | 20 | 11 | 8 | 9 | 473 |
Michigan | 15 | 1,730 | 886 | 202 | 102 | 53 | 28 | 17 | 16 | 3,034 |
Minnesota | - | 1,748 | 1,502 | 443 | 205 | 98 | 44 | 21 | 18 | 4,080 |
Mississippi | - | 866 | 843 | 288 | 166 | 111 | 55 | 30 | 33 | 2,391 |
Missouri | - | 1,914 | 1,295 | 358 | 153 | 71 | 31 | 14 | 11 | 3,846 |
Montana | - | 1,307 | 1,651 | 506 | 226 | 93 | 42 | 21 | 21 | 3,867 |
Nebraska | 5 | 1,139 | 1,154 | 370 | 204 | 109 | 50 | 31 | 36 | 3,092 |
Nevada | - | 1,308 | 512 | 117 | 53 | 20 | 8 | 4 | 2 | 2,024 |
New Hampshire | - | 308 | 146 | 39 | 15 | 9 | 6 | 3 | 3 | 529 |
New Jersey | - | 105 | 92 | 21 | 9 | 6 | 3 | 2 | 2 | 240 |
New Mexico | - | 1,071 | 848 | 301 | 165 | 98 | 51 | 29 | 32 | 2,594 |
New York | 43 | 691 | 1,415 | 464 | 229 | 128 | 58 | 34 | 35 | 3,055 |
North Carolina | 27 | 1,050 | 1,088 | 370 | 140 | 54 | 22 | 11 | 11 | 2,747 |
North Dakota | - | 1,683 | 1,193 | 327 | 139 | 58 | 24 | 14 | 20 | 3,456 |
Ohio | 1 | 1,137 | 921 | 270 | 118 | 56 | 21 | 11 | 10 | 2,544 |
Oklahoma | 41 | 812 | 1,161 | 442 | 238 | 126 | 63 | 39 | 50 | 2,931 |
Oregon | 1 | 1,025 | 1,434 | 396 | 151 | 69 | 30 | 20 | 25 | 3,151 |
Pennsylvania | - | 1,042 | 1,189 | 376 | 177 | 85 | 46 | 25 | 35 | 2,974 |
Rhode Island | 1 | 29 | 22 | 15 | 18 | 17 | 11 | 7 | 6 | 124 |
South Carolina | 22 | 727 | 846 | 270 | 141 | 70 | 30 | 13 | 11 | 2,109 |
South Dakota | - | 1,297 | 1,369 | 434 | 207 | 89 | 42 | 23 | 20 | 3,480 |
Tennessee | - | 1,257 | 730 | 191 | 100 | 57 | 23 | 16 | 12 | 2,387 |
Texas | 51 | 3,811 | 4,057 | 1,430 | 622 | 280 | 109 | 47 | 34 | 10,390 |
Utah | - | 656 | 733 | 270 | 129 | 55 | 17 | 6 | 5 | 1,871 |
Vermont | 1 | 260 | 194 | 46 | 23 | 14 | 7 | 5 | 13 | 563 |
Virginia | - | 586 | 1,126 | 375 | 167 | 66 | 23 | 12 | 6 | 2,359 |
Washington | - | 557 | 993 | 427 | 189 | 88 | 40 | 30 | 30 | 2,353 |
West Virginia | 16 | 331 | 471 | 225 | 132 | 72 | 37 | 26 | 27 | 1,323 |
Wisconsin | 13 | 1,423 | 998 | 532 | 331 | 184 | 89 | 49 | 48 | 3,654 |
Wyoming | 55 | 1,161 | 1,060 | 299 | 122 | 48 | 16 | 8 | 6 | 2,721 |
U.S. Total | 759 | 49,737 | 46,215 | 15,423 | 7,642 | 3,904 | 1,817 | 1,044 | 1,155 | 126,937 |
Puerto Rico | - | 3 | 18 | 20 | 17 | 16 | 10 | 10 | 26 | 121 |
Grand Total | 760 | 49,740 | 46,233 | 15,443 | 7,660 | 3,920 | 1,828 | 1,054 | 1,181 | 127,059 |
January 29, 2024
INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
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 | 1 | 312 | 56 | 23 | 15 | 9 | 6 | 5 | 6 | 432 | 129 | 461 | 447 | 118 | 61 | 35 | 19 | 10 | 12 | 1,164 |
Alaska | - | 30 | 31 | 11 | 4 | 2 | 1 | - | - | 79 | 11 | 22 | 46 | 26 | 18 | 12 | 8 | 7 | 12 | 150 |
Arizona | 11 | 119 | 71 | 24 | 17 | 7 | 2 | 1 | 1 | 241 | 11 | 168 | 193 | 129 | 119 | 87 | 53 | 35 | 46 | 830 |
Arkansas | - | 130 | 96 | 39 | 23 | 16 | 8 | 6 | 6 | 323 | - | 105 | 234 | 103 | 67 | 49 | 31 | 23 | 68 | 679 |
California | 8 | 244 | 401 | 219 | 156 | 101 | 57 | 30 | 30 | 1,237 | 425 | 392 | 976 | 872 | 957 | 961 | 774 | 688 | 1,964 | 7,582 |
Colorado | - | 57 | 103 | 50 | 42 | 27 | 12 | 6 | 7 | 304 | 1 | 113 | 374 | 258 | 204 | 136 | 95 | 63 | 138 | 1,381 |
Connecticut | - | 144 | 116 | 31 | 13 | 8 | 2 | 2 | 2 | 318 | 2 | 91 | 302 | 184 | 131 | 88 | 55 | 35 | 70 | 956 |
Delaware | 1 | 12 | 12 | 6 | 3 | 2 | 2 | 1 | 1 | 40 | - | 39 | 103 | 44 | 26 | 15 | 9 | 6 | 14 | 256 |
District of Columbia | 1 | - | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 11 | 4 | - | 1 | 2 | 5 | 10 | 11 | 13 | 76 | 119 |
Florida | 28 | 488 | 185 | 40 | 19 | 10 | 5 | 1 | 1 | 750 | 8 | 1,218 | 1,764 | 676 | 357 | 218 | 118 | 73 | 124 | 4,548 |
Georgia | 7 | 427 | 169 | 58 | 28 | 15 | 7 | 2 | 2 | 709 | - | 780 | 1,093 | 389 | 204 | 117 | 59 | 39 | 69 | 2,749 |
Hawaii | - | 1 | 11 | 12 | 10 | 9 | 6 | 3 | 2 | 55 | 3 | 30 | 66 | 49 | 40 | 40 | 26 | 20 | 46 | 317 |
Idaho | 3 | 49 | 35 | 5 | 3 | 2 | - | - | - | 93 | 28 | 50 | 87 | 33 | 21 | 15 | 8 | 7 | 10 | 231 |
Illinois | - | 378 | 332 | 89 | 57 | 37 | 19 | 13 | 13 | 938 | 2 | 301 | 742 | 545 | 441 | 327 | 223 | 170 | 406 | 3,156 |
Indiana | - | 235 | 126 | 64 | 34 | 19 | 7 | 3 | 4 | 492 | 8 | 243 | 225 | 91 | 56 | 32 | 16 | 11 | 12 | 686 |
Iowa | 1 | 46 | 74 | 29 | 13 | 7 | 3 | 2 | 1 | 175 | 9 | 110 | 219 | 182 | 140 | 92 | 59 | 43 | 87 | 931 |
Kansas | 3 | 127 | 57 | 24 | 13 | 7 | 4 | 1 | 1 | 234 | 36 | 135 | 143 | 62 | 42 | 34 | 22 | 13 | 23 | 473 |
Kentucky | - | 114 | 65 | 22 | 13 | 9 | 4 | 2 | 2 | 233 | 41 | 164 | 235 | 90 | 59 | 41 | 28 | 21 | 36 | 673 |
Louisiana | 3 | 126 | 83 | 48 | 50 | 50 | 28 | 14 | 15 | 414 | 52 | 100 | 224 | 150 | 138 | 119 | 93 | 78 | 181 | 1,081 |
Maine | - | 62 | 17 | 5 | 2 | 1 | - | - | - | 87 | 1 | 34 | 44 | 22 | 18 | 14 | 7 | 6 | 14 | 159 |
Maryland | - | 134 | 125 | 29 | 16 | 8 | 6 | 6 | 12 | 336 | 9 | 242 | 365 | 155 | 109 | 85 | 67 | 57 | 216 | 1,296 |
Massachusetts | 2 | 350 | 80 | 24 | 18 | 12 | 7 | 4 | 7 | 504 | 49 | 258 | 383 | 290 | 281 | 264 | 192 | 162 | 467 | 2,296 |
Michigan | 2 | 248 | 247 | 65 | 43 | 30 | 17 | 10 | 14 | 675 | 436 | 324 | 588 | 386 | 289 | 217 | 154 | 121 | 218 | 2,297 |
Minnesota | 1 | 119 | 139 | 33 | 18 | 10 | 3 | 2 | 1 | 324 | - | 254 | 324 | 139 | 65 | 34 | 17 | 9 | 12 | 855 |
Mississippi | - | 144 | 58 | 18 | 12 | 10 | 5 | 3 | 3 | 253 | 2 | 149 | 280 | 168 | 117 | 86 | 51 | 40 | 100 | 991 |
Missouri | - | 295 | 141 | 40 | 27 | 18 | 8 | 6 | 3 | 538 | - | 305 | 430 | 196 | 129 | 98 | 65 | 45 | 77 | 1,344 |
Montana | - | 55 | 31 | 6 | 4 | 2 | - | - | - | 98 | - | 35 | 69 | 34 | 23 | 20 | 12 | 10 | 17 | 221 |
Nebraska | - | 17 | 30 | 13 | 4 | 3 | 1 | 1 | - | 69 | 34 | 25 | 83 | 51 | 47 | 48 | 37 | 33 | 106 | 430 |
Nevada | - | 90 | 31 | 17 | 14 | 6 | 3 | 1 | - | 162 | - | 120 | 119 | 60 | 43 | 30 | 20 | 12 | 19 | 424 |
New Hampshire | - | 73 | 8 | 1 | - | - | - | - | - | 83 | - | 137 | 85 | 35 | 22 | 13 | 8 | 6 | 13 | 320 |
New Jersey | - | 184 | 116 | 28 | 21 | 13 | 9 | 7 | 9 | 387 | - | 405 | 593 | 294 | 237 | 207 | 156 | 131 | 319 | 2,341 |
New Mexico | - | 83 | 40 | 13 | 7 | 5 | 3 | 2 | 2 | 155 | - | 69 | 110 | 56 | 45 | 33 | 19 | 13 | 34 | 380 |
New York | 20 | 207 | 351 | 137 | 81 | 51 | 33 | 20 | 35 | 916 | 145 | 134 | 911 | 622 | 489 | 385 | 285 | 253 | 831 | 3,910 |
North Carolina | - | 448 | 242 | 59 | 22 | 11 | 8 | 4 | 5 | 799 | 13 | 318 | 684 | 428 | 276 | 169 | 89 | 56 | 81 | 2,101 |
North Dakota | - | 23 | 27 | 7 | 2 | 1 | - | - | - | 61 | 1 | 31 | 55 | 34 | 28 | 18 | 12 | 9 | 18 | 204 |
Ohio | 2 | 454 | 275 | 88 | 50 | 30 | 15 | 12 | 11 | 936 | 16 | 357 | 629 | 335 | 250 | 195 | 126 | 99 | 207 | 2,197 |
Oklahoma | 6 | 82 | 110 | 39 | 20 | 13 | 6 | 4 | 4 | 277 | 15 | 87 | 234 | 118 | 83 | 52 | 31 | 25 | 43 | 674 |
Oregon | - | 124 | 74 | 16 | 10 | 5 | 4 | 1 | 2 | 234 | 43 | 134 | 255 | 151 | 113 | 77 | 50 | 36 | 75 | 891 |
Pennsylvania | - | 342 | 266 | 76 | 46 | 25 | 14 | 10 | 19 | 797 | - | 311 | 831 | 579 | 484 | 363 | 247 | 176 | 417 | 3,408 |
Rhode Island | - | 34 | 12 | 3 | 2 | 1 | - | - | - | 52 | 14 | 31 | 53 | 42 | 55 | 57 | 46 | 37 | 87 | 409 |
South Carolina | 17 | 173 | 74 | 19 | 11 | 7 | 2 | 1 | 1 | 287 | 6 | 132 | 416 | 237 | 160 | 100 | 48 | 32 | 36 | 1,161 |
South Dakota | - | 22 | 48 | 11 | 4 | 2 | 1 | - | - | 88 | 1 | 15 | 39 | 26 | 25 | 19 | 13 | 9 | 8 | 155 |
Tennessee | 1 | 379 | 103 | 36 | 17 | 11 | 5 | 3 | 4 | 556 | 5 | 607 | 676 | 276 | 171 | 118 | 66 | 51 | 102 | 2,067 |
Texas | 4 | 379 | 552 | 234 | 149 | 84 | 37 | 17 | 7 | 1,460 | 103 | 800 | 1,848 | 1,112 | 793 | 581 | 373 | 288 | 694 | 6,488 |
Utah | - | 76 | 106 | 38 | 17 | 9 | 4 | 1 | 1 | 253 | - | 135 | 275 | 126 | 73 | 40 | 24 | 12 | 20 | 705 |
Vermont | - | 40 | 19 | 2 | 2 | - | - | - | - | 64 | 2 | 16 | 26 | 13 | 9 | 7 | 5 | 3 | 7 | 87 |
Virginia | - | 158 | 228 | 71 | 34 | 19 | 10 | 6 | 3 | 528 | - | 121 | 547 | 339 | 261 | 200 | 119 | 78 | 92 | 1,756 |
Washington | - | 135 | 114 | 41 | 22 | 11 | 5 | 4 | 3 | 334 | 11 | 181 | 445 | 290 | 240 | 187 | 132 | 108 | 272 | 1,855 |
West Virginia | 1 | 117 | 63 | 22 | 16 | 8 | 5 | 3 | 2 | 235 | 2 | 56 | 145 | 81 | 47 | 34 | 16 | 11 | 22 | 412 |
Wisconsin | - | 102 | 124 | 60 | 44 | 21 | 9 | 3 | 3 | 367 | 34 | 142 | 312 | 287 | 279 | 255 | 174 | 134 | 321 | 1,905 |
Wyoming | - | 46 | 30 | 12 | 7 | 4 | 3 | 2 | 2 | 106 | 5 | 40 | 50 | 28 | 18 | 13 | 8 | 8 | 12 | 175 |
U.S. Total | 123 | 8,232 | 5,905 | 2,056 | 1,260 | 774 | 400 | 226 | 245 | 19,099 | 1,722 | 10,525 | 19,376 | 11,011 | 8,366 | 6,445 | 4,375 | 3,429 | 8,352 | 71,878 |
Puerto Rico | - | 6 | 44 | 42 | 36 | 30 | 19 | 17 | 36 | 231 | 9 | 1 | 19 | 30 | 47 | 54 | 51 | 48 | 152 | 401 |
Grand Total | 124 | 8,238 | 5,950 | 2,098 | 1,296 | 804 | 419 | 244 | 281 | 19,330 | 1,731 | 10,526 | 19,394 | 11,041 | 8,412 | 6,499 | 4,426 | 3,477 | 8,504 | 72,279 |
January 29, 2024
INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
STATE | TOTAL URBAN NHS | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
NOT REPORTED (2) | < 60 | 60-94 | 95-119 | 120-144 | 145-170 | 171-194 | 195-220 | > 220 | TOTAL REPORTED | |
Alabama | 130 | 773 | 504 | 142 | 76 | 44 | 25 | 15 | 18 | 1,596 |
Alaska | 11 | 52 | 77 | 37 | 22 | 13 | 9 | 7 | 12 | 229 |
Arizona | 23 | 287 | 264 | 153 | 136 | 94 | 56 | 36 | 46 | 1,071 |
Arkansas | - | 235 | 329 | 141 | 90 | 65 | 39 | 29 | 74 | 1,001 |
California | 434 | 635 | 1,377 | 1,090 | 1,113 | 1,062 | 830 | 718 | 1,994 | 8,820 |
Colorado | 1 | 170 | 477 | 308 | 246 | 163 | 107 | 69 | 144 | 1,684 |
Connecticut | 2 | 235 | 418 | 215 | 145 | 95 | 58 | 37 | 71 | 1,273 |
Delaware | 1 | 51 | 115 | 50 | 29 | 17 | 10 | 7 | 15 | 296 |
District of Columbia | 5 | - | 3 | 4 | 7 | 11 | 13 | 14 | 77 | 130 |
Florida | 36 | 1,707 | 1,948 | 716 | 376 | 228 | 124 | 75 | 125 | 5,298 |
Georgia | 7 | 1,207 | 1,263 | 447 | 232 | 132 | 66 | 41 | 70 | 3,458 |
Hawaii | 3 | 31 | 77 | 62 | 50 | 50 | 31 | 23 | 49 | 372 |
Idaho | 31 | 99 | 121 | 38 | 24 | 17 | 8 | 7 | 11 | 325 |
Illinois | 2 | 678 | 1,075 | 634 | 499 | 364 | 242 | 183 | 419 | 4,094 |
Indiana | 8 | 479 | 350 | 155 | 91 | 51 | 24 | 14 | 16 | 1,179 |
Iowa | 10 | 156 | 293 | 211 | 153 | 99 | 62 | 45 | 88 | 1,106 |
Kansas | 39 | 263 | 200 | 85 | 55 | 40 | 26 | 14 | 24 | 707 |
Kentucky | 42 | 278 | 300 | 112 | 73 | 50 | 32 | 23 | 38 | 906 |
Louisiana | 55 | 226 | 306 | 198 | 188 | 169 | 121 | 92 | 196 | 1,495 |
Maine | 1 | 96 | 61 | 27 | 20 | 15 | 8 | 7 | 14 | 246 |
Maryland | 9 | 377 | 489 | 184 | 125 | 94 | 73 | 63 | 228 | 1,632 |
Massachusetts | 51 | 608 | 463 | 314 | 300 | 277 | 199 | 166 | 473 | 2,800 |
Michigan | 438 | 572 | 834 | 451 | 332 | 247 | 171 | 132 | 232 | 2,972 |
Minnesota | 2 | 373 | 463 | 172 | 83 | 44 | 19 | 11 | 13 | 1,179 |
Mississippi | 2 | 293 | 338 | 185 | 129 | 96 | 56 | 44 | 102 | 1,244 |
Missouri | - | 600 | 571 | 236 | 156 | 116 | 74 | 51 | 80 | 1,882 |
Montana | - | 91 | 100 | 40 | 27 | 21 | 12 | 10 | 17 | 319 |
Nebraska | 34 | 42 | 113 | 64 | 51 | 50 | 39 | 34 | 106 | 499 |
Nevada | - | 210 | 150 | 77 | 57 | 36 | 23 | 14 | 20 | 586 |
New Hampshire | - | 209 | 94 | 36 | 23 | 14 | 8 | 6 | 13 | 403 |
New Jersey | - | 588 | 709 | 322 | 258 | 220 | 165 | 138 | 328 | 2,727 |
New Mexico | - | 152 | 151 | 69 | 52 | 38 | 22 | 16 | 36 | 536 |
New York | 165 | 341 | 1,262 | 759 | 571 | 436 | 318 | 274 | 866 | 4,827 |
North Carolina | 13 | 766 | 926 | 486 | 298 | 180 | 98 | 60 | 86 | 2,901 |
North Dakota | 1 | 54 | 82 | 41 | 30 | 19 | 12 | 9 | 18 | 265 |
Ohio | 18 | 811 | 904 | 422 | 300 | 225 | 142 | 111 | 219 | 3,133 |
Oklahoma | 20 | 169 | 344 | 156 | 103 | 66 | 38 | 29 | 47 | 951 |
Oregon | 43 | 258 | 329 | 166 | 122 | 82 | 53 | 37 | 77 | 1,125 |
Pennsylvania | - | 653 | 1,097 | 655 | 530 | 389 | 261 | 185 | 436 | 4,205 |
Rhode Island | 14 | 65 | 65 | 45 | 57 | 58 | 46 | 38 | 88 | 462 |
South Carolina | 23 | 305 | 490 | 256 | 171 | 106 | 50 | 33 | 36 | 1,448 |
South Dakota | 1 | 37 | 87 | 37 | 29 | 21 | 14 | 9 | 8 | 243 |
Tennessee | 6 | 986 | 778 | 312 | 188 | 129 | 70 | 54 | 106 | 2,623 |
Texas | 106 | 1,179 | 2,400 | 1,346 | 942 | 665 | 410 | 305 | 702 | 7,948 |
Utah | - | 211 | 381 | 165 | 90 | 49 | 27 | 14 | 21 | 958 |
Vermont | 2 | 56 | 45 | 15 | 11 | 7 | 5 | 4 | 7 | 151 |
Virginia | - | 279 | 775 | 410 | 295 | 218 | 129 | 83 | 95 | 2,284 |
Washington | 11 | 315 | 559 | 331 | 261 | 199 | 137 | 112 | 275 | 2,189 |
West Virginia | 3 | 173 | 208 | 103 | 63 | 42 | 21 | 14 | 24 | 647 |
Wisconsin | 34 | 244 | 436 | 348 | 323 | 276 | 184 | 138 | 324 | 2,272 |
Wyoming | 5 | 85 | 80 | 40 | 25 | 17 | 10 | 10 | 14 | 280 |
U.S. Total | 1,845 | 18,757 | 25,281 | 13,067 | 9,625 | 7,219 | 4,775 | 3,655 | 8,597 | 90,977 |
Puerto Rico | 9 | 7 | 63 | 71 | 82 | 85 | 70 | 66 | 187 | 632 |
Grand Total | 1,855 | 18,764 | 25,344 | 13,139 | 9,708 | 7,304 | 4,845 | 3,721 | 8,785 | 91,609 |
(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.
(2) May include sections entirely on structures and unpaved miles.