U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
October 2015
Table HM-64
1 of 4
STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) (1) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
INTERSTATE | ||||||||||
NOT REPORTED (2) | < 60 | 60-94 | 95-119 | 120-144 | 145-170 | 171-194 | 195-220 | > 220 | TOTAL REPORTED | |
Alabama | 1 | 327 | 167 | 40 | 20 | 8 | 4 | 3 | 3 | 571 |
Alaska | 12 | 169 | 329 | 178 | 130 | 86 | 48 | 24 | 27 | 991 |
Arizona | 1 | 488 | 291 | 73 | 32 | 22 | 7 | 4 | 4 | 920 |
Arkansas | 5 | 170 | 149 | 43 | 22 | 11 | 5 | 3 | 2 | 405 |
California | 23 | 358 | 418 | 151 | 119 | 67 | 31 | 17 | 23 | 1,185 |
Colorado | - | 99 | 283 | 128 | 63 | 39 | 20 | 10 | 6 | 648 |
Connecticut | - | 9 | 13 | 5 | 0 | 1 | 0 | 0 | 0 | 29 |
Delaware | - | - | - | - | - | - | - | - | - | - |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - |
Florida | 75 | 395 | 217 | 18 | 9 | 2 | 1 | 0 | 0 | 643 |
Georgia | 0 | 250 | 187 | 58 | 23 | 10 | 4 | 2 | 2 | 536 |
Hawaii | - | - | - | - | - | - | - | - | - | - |
Idaho | - | 276 | 169 | 45 | 17 | 7 | 4 | 3 | 1 | 522 |
Illinois | - | 597 | 509 | 121 | 16 | - | - | - | - | 1,243 |
Indiana | 101 | 376 | 150 | 43 | 25 | 17 | 10 | 6 | 8 | 634 |
Iowa | 3 | 285 | 204 | 64 | 28 | 12 | 6 | 3 | 7 | 609 |
Kansas | - | 435 | 163 | 30 | 13 | 4 | 2 | 0 | 0 | 647 |
Kentucky | 7 | 443 | 103 | 22 | 8 | 4 | 1 | 1 | 0 | 582 |
Louisiana | 1 | 224 | 123 | 82 | 59 | 30 | 9 | 4 | 2 | 532 |
Maine | - | 193 | 81 | 19 | - | 6 | - | 0 | - | 299 |
Maryland | 1 | 54 | 70 | 11 | 3 | 1 | 1 | 0 | 1 | 141 |
Massachusetts | 64 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 210 | 223 | 62 | 30 | 20 | 13 | 4 | 5 | 566 |
Minnesota | - | 210 | 261 | 62 | 28 | 17 | 9 | 4 | 2 | 594 |
Mississippi | - | 279 | 133 | 29 | 14 | 8 | 4 | 4 | 2 | 473 |
Missouri | 0 | 511 | 265 | 38 | 16 | 6 | 3 | 2 | 1 | 841 |
Montana | - | 401 | 571 | 77 | 27 | 12 | 4 | 1 | 2 | 1,094 |
Nebraska | - | 245 | 132 | 38 | 1 | 1 | - | - | - | 416 |
Nevada | 0 | 205 | 70 | 33 | 35 | 33 | 25 | 19 | 29 | 448 |
New Hampshire | - | 117 | 18 | 4 | 1 | 1 | 1 | 0 | 0 | 142 |
New Jersey | - | 25 | 16 | 2 | 1 | 1 | 0 | 0 | 0 | 45 |
New Mexico | 1 | 583 | 196 | 38 | 15 | 6 | 4 | 1 | 1 | 845 |
New York | - | 198 | 439 | 92 | 33 | 15 | 8 | 6 | 11 | 803 |
North Carolina | 11 | 322 | 156 | 33 | 15 | 7 | 1 | 1 | 1 | 536 |
North Dakota | - | 220 | 235 | 42 | 11 | 2 | 1 | 0 | 0 | 511 |
Ohio | 0 | 245 | 322 | 55 | 15 | 4 | 2 | 0 | 0 | 643 |
Oklahoma | - | 263 | 278 | 72 | 17 | 7 | 7 | 1 | 0 | 646 |
Oregon | 2 | 225 | 192 | 54 | 14 | 4 | 3 | 1 | 1 | 493 |
Pennsylvania | 1 | 465 | 472 | 108 | 41 | 16 | 7 | 8 | 3 | 1,119 |
Rhode Island | - | 15 | 2 | 0 | 0 | 0 | - | - | 0 | 18 |
South Carolina | - | 214 | 265 | 52 | 12 | 3 | 0 | - | 0 | 546 |
South Dakota | - | 127 | 391 | 57 | 14 | 1 | 1 | - | 0 | 591 |
Tennessee | 1 | 535 | 62 | 10 | 8 | 3 | 1 | 1 | 1 | 621 |
Texas | - | 713 | 957 | 206 | 72 | 31 | 10 | 6 | 5 | 2,001 |
Utah | - | 335 | 317 | 31 | 1 | 0 | - | 0 | - | 684 |
Vermont | 2 | 186 | 58 | 7 | 5 | 1 | - | 0 | - | 257 |
Virginia | 1 | 171 | 325 | 101 | 38 | 10 | 2 | 1 | 1 | 649 |
Washington | - | 173 | 144 | 47 | 23 | 16 | 9 | 6 | 6 | 425 |
West Virginia | - | 40 | 259 | 37 | 30 | 3 | - | - | - | 368 |
Wisconsin | - | 154 | 156 | 63 | 44 | 27 | 11 | 8 | 2 | 464 |
Wyoming | 0 | 364 | 304 | 71 | 38 | 16 | 7 | 4 | 3 | 807 |
U.S. Total | 312 | 12,895 | 10,843 | 2,653 | 1,184 | 601 | 284 | 160 | 163 | 28,783 |
Puerto Rico (4) | - | - | 1 | 10 | 4 | 11 | 5 | 4 | 7 | 42 |
Grand Total | 312 | 12,895 | 10,844 | 2,663 | 1,188 | 612 | 289 | 164 | 170 | 28,825 |
October 2015
Table HM-64
2 of 4
STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) (1) | |||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OTHER FREEWAYS & EXPRESSWAYS | OTHER PRINCIPAL ARTERIAL | MINOR ARTERIAL (3) | ||||||||||||||||||||||||||||
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 | NOT REPORTED (2) | < 60 | 60-94 | 95-119 | 120-144 | 145-170 | 171-194 | 195-220 | > 220 | TOTAL REPORTED | |
Alabama | - | - | - | - | - | - | - | - | - | - | 3 | 920 | 819 | 152 | 62 | 36 | 18 | 10 | 9 | 2,025 | 206 | 945 | 1,615 | 747 | 284 | 133 | 47 | 22 | 23 | 3,817 |
Alaska | - | - | - | - | - | - | - | - | - | - | 270 | 63 | 118 | 66 | 58 | 49 | 44 | 39 | 96 | 532 | 14 | 34 | 49 | 38 | 51 | 49 | 39 | 25 | 45 | 329 |
Arizona | - | 17 | - | 0 | - | - | - | - | 0 | 18 | 18 | 483 | 416 | 141 | 80 | 40 | 16 | 7 | 5 | 1,188 | 41 | 277 | 408 | 218 | 130 | 72 | 31 | 11 | 12 | 1,158 |
Arkansas | 2 | 4 | 38 | 18 | 13 | 7 | 2 | 1 | 1 | 83 | 86 | 293 | 824 | 342 | 188 | 98 | 44 | 19 | 12 | 1,819 | 56 | 425 | 1,416 | 492 | 280 | 185 | 84 | 70 | 40 | 2,992 |
California | 67 | 7 | 43 | 26 | 19 | 8 | 5 | 2 | 7 | 117 | 1,991 | 253 | 615 | 287 | 173 | 99 | 37 | 24 | 59 | 1,545 | 3,270 | 129 | 501 | 353 | 389 | 325 | 164 | 198 | 204 | 2,263 |
Colorado | - | 6 | 7 | 9 | 5 | 1 | 0 | 0 | - | 28 | - | 485 | 1,090 | 488 | 252 | 133 | 60 | 31 | 30 | 2,569 | - | 95 | 809 | 825 | 684 | 290 | 196 | 56 | 188 | 3,142 |
Connecticut | - | 11 | 14 | 6 | 3 | 1 | - | 0 | 0 | 36 | - | 2 | 46 | 32 | 17 | 8 | 3 | 3 | 4 | 114 | - | 2 | 43 | 56 | 52 | 28 | 13 | 7 | 19 | 219 |
Delaware | - | 1 | 15 | 6 | 0 | 1 | 0 | 0 | - | 24 | - | 37 | 71 | 9 | 3 | 1 | 0 | 0 | 0 | 121 | - | 9 | 62 | 25 | 1 | 6 | 0 | 0 | 2 | 106 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Florida | - | 77 | 85 | 6 | 2 | 1 | 0 | 0 | - | 173 | 76 | 940 | 1,242 | 252 | 69 | 28 | 7 | 4 | 4 | 2,544 | 13 | 488 | 1,222 | 297 | 99 | 42 | 9 | 11 | 10 | 2,178 |
Georgia | - | - | - | - | - | - | - | - | - | - | 34 | 757 | 1,148 | 259 | 94 | 42 | 14 | 8 | 8 | 2,332 | 61 | 1,223 | 2,346 | 654 | 233 | 68 | 22 | 10 | 34 | 4,590 |
Hawaii | - | - | - | - | - | - | - | - | - | - | - | 1 | 18 | 17 | 16 | 11 | 6 | 4 | 5 | 78 | - | 32 | 31 | 55 | 56 | 37 | 23 | 9 | 11 | 254 |
Idaho | - | - | - | - | - | - | - | - | - | - | 20 | 491 | 850 | 245 | 92 | 41 | 18 | 11 | 9 | 1,755 | 89 | 282 | 676 | 205 | 94 | 52 | 23 | 15 | 27 | 1,375 |
Illinois | - | 1 | 17 | 12 | - | - | - | - | - | 30 | - | 406 | 1,088 | 377 | 249 | 112 | 23 | 10 | 8 | 2,272 | - | 629 | 2,042 | 1,156 | 588 | 143 | 19 | - | 9 | 4,586 |
Indiana | 0 | 69 | 35 | 13 | 10 | 3 | 1 | 0 | 0 | 131 | 5 | 614 | 535 | 153 | 72 | 34 | 18 | 8 | 19 | 1,453 | 1 | 769 | 814 | 207 | 119 | 148 | 38 | 22 | 45 | 2,163 |
Iowa | - | - | - | - | - | - | - | - | - | - | 156 | 807 | 985 | 468 | 309 | 215 | 135 | 95 | 164 | 3,178 | 77 | 707 | 1,155 | 494 | 361 | 307 | 225 | 155 | 358 | 3,763 |
Kansas | 1 | 167 | 192 | 33 | 8 | 3 | 1 | 0 | 0 | 405 | 16 | 1,569 | 790 | 159 | 59 | 33 | 13 | 7 | 5 | 2,635 | 1 | 1,882 | 1,751 | 272 | 124 | 164 | 27 | 20 | 11 | 4,251 |
Kentucky | 6 | 319 | 158 | 22 | 11 | 5 | 2 | 1 | 1 | 518 | 20 | 472 | 520 | 135 | 45 | 19 | 7 | 4 | 4 | 1,206 | 23 | 185 | 1,018 | 573 | 278 | 138 | 46 | 26 | 20 | 2,283 |
Louisiana | 31 | - | - | - | - | - | - | - | - | - | 2 | 199 | 414 | 149 | 92 | 65 | 34 | 19 | 21 | 993 | 16 | 192 | 636 | 305 | 213 | 120 | 42 | 29 | 45 | 1,583 |
Maine | - | - | - | - | - | - | - | - | - | - | - | 43 | 332 | 219 | 106 | 59 | 27 | 1 | 1 | 788 | - | 47 | 301 | 252 | 184 | 106 | 36 | 18 | 9 | 953 |
Maryland | - | - | - | - | - | - | - | - | - | - | 3 | 156 | 129 | 19 | 13 | 6 | 3 | 3 | 3 | 332 | 19 | 173 | 342 | 119 | 50 | 14 | 4 | 5 | - | 707 |
Massachusetts | 10 | - | - | - | - | - | - | - | - | - | 105 | - | - | - | - | - | - | - | - | - | 297 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 186 | 104 | 26 | 12 | 8 | 4 | 2 | 1 | 344 | 4 | 1,009 | 760 | 187 | 83 | 43 | 19 | 11 | 18 | 2,131 | 3 | 1,279 | 2,030 | 515 | 271 | 202 | 125 | 103 | 166 | 4,691 |
Minnesota | - | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 35 | 1,056 | 1,264 | 532 | 275 | 158 | 71 | 40 | 50 | 3,446 | 58 | 2,207 | 1,794 | 611 | 414 | 380 | 382 | 315 | 372 | 6,475 |
Mississippi | - | - | - | - | - | - | - | - | - | - | - | 602 | 757 | 240 | 138 | 72 | 31 | 15 | 14 | 1,868 | - | 595 | 1,329 | 705 | 520 | 312 | 153 | 65 | 48 | 3,726 |
Missouri | 1 | 360 | 443 | 83 | 21 | 7 | 3 | 1 | 1 | 919 | 11 | 655 | 834 | 276 | 127 | 72 | 38 | 18 | 14 | 2,035 | 66 | 186 | 1,470 | 1,070 | 636 | 289 | 150 | 63 | 53 | 3,917 |
Montana | - | - | - | - | - | - | - | - | - | - | - | 715 | 1,327 | 389 | 166 | 80 | 37 | 24 | 35 | 2,773 | - | 464 | 1,317 | 496 | 237 | 138 | 65 | 30 | 27 | 2,772 |
Nebraska | 1 | 33 | 196 | 78 | 22 | 1 | 4 | 9 | 2 | 346 | 6 | 995 | 698 | 299 | 209 | 77 | 28 | 40 | 12 | 2,359 | - | 891 | 1,238 | 927 | 684 | 173 | 217 | 7 | 16 | 4,153 |
Nevada | - | - | - | - | - | - | - | - | - | - | 5 | 396 | 678 | 276 | 76 | 20 | 14 | 16 | 24 | 1,500 | - | 98 | 350 | 190 | 59 | 12 | 4 | 2 | 1 | 715 |
New Hampshire | - | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 9 | 1 | 120 | 111 | 32 | 20 | 14 | 10 | 8 | 9 | 323 | - | 175 | 213 | 73 | 49 | 36 | 24 | 18 | 38 | 626 |
New Jersey | - | 8 | 18 | 5 | 2 | 1 | 0 | - | 0 | 35 | 0 | 19 | 35 | 30 | 29 | 18 | 11 | 6 | 10 | 157 | 17 | 10 | 70 | 75 | 45 | 43 | 19 | 3 | 8 | 272 |
New Mexico | - | - | - | - | - | - | - | - | - | - | 19 | 809 | 637 | 188 | 94 | 51 | 21 | 13 | 11 | 1,825 | - | 439 | 530 | 338 | 216 | 172 | 96 | 61 | 55 | 1,908 |
New York | - | 6 | 57 | 18 | 15 | 11 | 4 | 1 | 1 | 113 | 3 | 159 | 1,078 | 443 | 246 | 104 | 47 | 34 | 19 | 2,129 | 2 | 139 | 942 | 938 | 338 | 237 | 171 | 93 | 11 | 2,871 |
North Carolina | 15 | 224 | 143 | 19 | 7 | 3 | 1 | 0 | 0 | 397 | 27 | 270 | 823 | 248 | 100 | 39 | 17 | 10 | 13 | 1,520 | 21 | 77 | 1,322 | 779 | 435 | 180 | 75 | 63 | 65 | 2,997 |
North Dakota | - | - | - | - | - | - | - | - | - | - | - | 1,005 | 1,240 | 380 | 147 | 76 | 38 | 23 | 41 | 2,950 | - | 577 | 1,157 | 330 | 188 | 109 | 65 | 39 | 51 | 2,516 |
Ohio | 0 | 93 | 194 | 28 | 11 | 1 | 1 | 0 | 0 | 330 | 0 | 347 | 766 | 250 | 91 | 43 | 9 | 4 | 3 | 1,513 | 6 | 519 | 1,385 | 545 | 92 | 88 | - | - | 6 | 2,635 |
Oklahoma | - | - | - | - | - | - | - | - | - | - | - | 292 | 1,021 | 417 | 332 | 101 | 38 | 19 | 31 | 2,252 | - | 468 | 1,154 | 276 | 526 | 132 | 23 | 87 | - | 2,665 |
Oregon | - | - | - | - | - | - | - | - | - | - | 14 | 501 | 1,345 | 438 | 192 | 91 | 41 | 20 | 17 | 2,644 | 65 | 237 | 952 | 448 | 271 | 135 | 54 | 35 | 27 | 2,159 |
Pennsylvania | 10 | 110 | 138 | 33 | 19 | 13 | 7 | 4 | 4 | 329 | 16 | 296 | 718 | 268 | 144 | 72 | 37 | 22 | 23 | 1,579 | - | 295 | 1,517 | 1,329 | 545 | 445 | 203 | 97 | 99 | 4,530 |
Rhode Island | - | - | - | - | - | - | - | - | - | - | 2 | 1 | 13 | 16 | 11 | 9 | 6 | 5 | 10 | 70 | 42 | 6 | 4 | 5 | 9 | 11 | 8 | 6 | 4 | 53 |
South Carolina | - | 11 | 31 | 1 | 3 | - | - | - | - | 45 | - | 98 | 801 | 381 | 183 | 58 | 9 | 15 | 3 | 1,547 | - | 68 | 886 | 937 | 923 | 133 | 39 | - | - | 2,986 |
South Dakota | - | - | - | - | - | 6 | - | - | - | 6 | 1 | 340 | 1,449 | 599 | 264 | 156 | 47 | 7 | 13 | 2,875 | 2 | 382 | 1,581 | 522 | 249 | 89 | 136 | 3 | 1 | 2,962 |
Tennessee | - | - | - | - | - | - | - | - | - | - | 8 | 849 | 634 | 160 | 69 | 27 | 13 | 7 | 5 | 1,765 | 41 | 772 | 1,351 | 535 | 156 | 80 | 43 | 24 | 42 | 3,004 |
Texas | - | 1 | 2 | 0 | 0 | 0 | - | - | 0 | 4 | 13 | 1,797 | 3,696 | 1,635 | 726 | 318 | 123 | 55 | 60 | 8,410 | 2,856 | 664 | 2,799 | 1,999 | 1,137 | 642 | 215 | 89 | 70 | 7,614 |
Utah | - | - | 3 | 3 | 3 | - | - | - | - | 9 | - | 119 | 535 | 339 | 112 | 41 | 11 | 5 | 0 | 1,162 | - | 3 | 358 | 304 | 377 | 161 | 66 | 46 | 3 | 1,318 |
Vermont | - | 0 | 1 | 0 | - | - | - | - | - | 2 | 1 | 72 | 145 | 46 | 22 | 12 | 5 | 5 | 6 | 311 | 6 | 140 | 307 | 72 | 50 | 38 | 30 | 27 | 58 | 722 |
Virginia | 0 | 10 | 40 | 13 | 4 | 1 | 0 | 0 | 0 | 68 | 22 | 211 | 791 | 232 | 86 | 31 | 11 | 6 | 3 | 1,370 | 103 | 150 | 1,705 | 1,083 | 394 | 155 | 51 | 12 | 16 | 3,566 |
Washington | - | 139 | 279 | 99 | 40 | 18 | 15 | 11 | 11 | 612 | - | 202 | 633 | 247 | 113 | 56 | 21 | 14 | 12 | 1,297 | - | 185 | 677 | 462 | 298 | 199 | 95 | 61 | 51 | 2,028 |
West Virginia | - | - | - | - | - | - | - | - | - | - | 2 | 28 | 453 | 291 | 162 | 90 | 20 | 12 | 15 | 1,071 | 10 | - | 341 | 519 | 144 | 191 | 38 | 48 | 47 | 1,328 |
Wisconsin | - | 44 | 46 | 37 | 30 | 21 | 7 | 3 | 1 | 189 | 0 | 542 | 751 | 887 | 292 | 198 | 96 | 63 | 99 | 2,927 | - | 386 | 487 | 580 | 2,584 | 204 | 207 | 116 | 158 | 4,721 |
Wyoming | - | - | - | - | - | - | - | - | - | - | 7 | 456 | 916 | 347 | 147 | 64 | 24 | 11 | 13 | 1,978 | 0 | 126 | 552 | 249 | 140 | 67 | 32 | 16 | 12 | 1,195 |
U.S. Total | 145 | 1,911 | 2,303 | 595 | 262 | 122 | 59 | 38 | 31 | 5,321 | 3,003 | 22,950 | 36,957 | 14,046 | 6,700 | 3,321 | 1,421 | 830 | 1,044 | 87,270 | 7,481 | 20,065 | 47,059 | 24,254 | 16,257 | 7,481 | 3,871 | 2,238 | 2,614 | 123,840 |
Puerto Rico (4) | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 3 | 23 | 6 | 2 | - | 7 | 42 | 13 | - | - | - | - | 18 | 30 | 38 | 132 | 218 |
Grand Total | 145 | 1,911 | 2,303 | 595 | 262 | 122 | 59 | 38 | 31 | 5,321 | 3,004 | 22,950 | 36,958 | 14,049 | 6,723 | 3,327 | 1,423 | 830 | 1,051 | 87,312 | 7,494 | 20,065 | 47,059 | 24,254 | 16,257 | 7,499 | 3,901 | 2,276 | 2,746 | 124,058 |
October 2015
Table HM-64
3 of 4
STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) (1) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
INTERSTATE | ||||||||||
NOT REPORTED (2) | < 60 | 60-94 | 95-119 | 120-144 | 145-170 | 171-194 | 195-220 | > 220 | TOTAL REPORTED | |
Alabama | 2 | 189 | 126 | 41 | 30 | 18 | 10 | 7 | 7 | 428 |
Alaska | 2 | 19 | 37 | 10 | 5 | 3 | 1 | 1 | 1 | 77 |
Arizona | 0 | 142 | 70 | 18 | 10 | 4 | 2 | 0 | 0 | 247 |
Arkansas | 6 | 74 | 107 | 40 | 23 | 19 | 10 | 7 | 8 | 288 |
California | 88 | 107 | 398 | 207 | 154 | 109 | 64 | 51 | 66 | 1,156 |
Colorado | - | 45 | 134 | 56 | 36 | 15 | 7 | 5 | 4 | 304 |
Connecticut | - | 104 | 123 | 43 | 23 | 12 | 6 | 3 | 4 | 317 |
Delaware | - | 3 | 19 | 9 | 4 | 2 | 2 | 1 | 1 | 41 |
Dist. of Columbia | - | - | 0 | 0 | 5 | 3 | 1 | 2 | 1 | 12 |
Florida | 72 | 357 | 263 | 44 | 24 | 10 | 5 | 2 | 1 | 706 |
Georgia | 0 | 332 | 229 | 72 | 36 | 19 | 11 | 6 | 4 | 711 |
Hawaii | - | 1 | 14 | 9 | 11 | 8 | 6 | 3 | 3 | 55 |
Idaho | - | 38 | 34 | 9 | 5 | 2 | 1 | 1 | 0 | 90 |
Illinois | - | 243 | 476 | 114 | 82 | 17 | 6 | 1 | 2 | 942 |
Indiana | 74 | 155 | 114 | 51 | 32 | 19 | 12 | 10 | 6 | 399 |
Iowa | 6 | 62 | 63 | 21 | 10 | 6 | 4 | 2 | 6 | 173 |
Kansas | 2 | 98 | 59 | 32 | 20 | 10 | 4 | 2 | 1 | 226 |
Kentucky | 8 | 119 | 62 | 12 | 5 | 2 | 1 | 1 | 0 | 203 |
Louisiana | 1 | 101 | 87 | 51 | 46 | 41 | 23 | 12 | 11 | 371 |
Maine | - | 22 | 23 | 16 | 2 | 4 | - | - | - | 67 |
Maryland | 3 | 116 | 135 | 31 | 16 | 13 | 7 | 6 | 10 | 336 |
Massachusetts | 509 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 167 | 259 | 106 | 57 | 37 | 27 | 17 | 15 | 685 |
Minnesota | - | 74 | 136 | 50 | 26 | 15 | 9 | 5 | 5 | 320 |
Mississippi | - | 107 | 66 | 21 | 13 | 9 | 5 | 3 | 2 | 226 |
Missouri | 1 | 266 | 171 | 44 | 24 | 16 | 8 | 4 | 4 | 537 |
Montana | - | 46 | 38 | 6 | 3 | 2 | 1 | 0 | 1 | 98 |
Nebraska | - | 5 | 27 | 26 | 4 | 4 | 1 | - | - | 66 |
Nevada | 8 | 49 | 49 | 19 | 12 | 8 | 2 | 1 | 1 | 141 |
New Hampshire | - | 62 | 16 | 2 | 1 | 1 | 0 | 0 | - | 83 |
New Jersey | 3 | 132 | 125 | 48 | 27 | 15 | 11 | 9 | 17 | 384 |
New Mexico | - | 102 | 29 | 8 | 7 | 4 | 1 | 1 | 1 | 153 |
New York | 2 | 115 | 451 | 143 | 72 | 46 | 33 | 22 | 50 | 932 |
North Carolina | 36 | 268 | 262 | 78 | 37 | 17 | 6 | 4 | 2 | 674 |
North Dakota | - | 22 | 32 | 4 | 1 | 0 | - | 0 | 0 | 60 |
Ohio | - | 267 | 441 | 143 | 51 | 16 | 8 | 2 | 2 | 931 |
Oklahoma | - | 48 | 135 | 54 | 21 | 15 | 4 | 6 | 4 | 286 |
Oregon | 4 | 71 | 104 | 27 | 12 | 10 | 4 | 2 | 1 | 231 |
Pennsylvania | 8 | 221 | 314 | 88 | 54 | 28 | 18 | 10 | 6 | 739 |
Rhode Island | 0 | 24 | 19 | 5 | 2 | 1 | 0 | 0 | 0 | 52 |
South Carolina | - | 81 | 148 | 45 | 22 | 6 | 2 | 0 | 0 | 304 |
South Dakota | 0 | 5 | 51 | 23 | 7 | 1 | - | - | - | 88 |
Tennessee | 2 | 326 | 92 | 30 | 15 | 8 | 4 | 3 | 3 | 481 |
Texas | 13 | 314 | 568 | 227 | 139 | 89 | 35 | 19 | 11 | 1,403 |
Utah | - | 78 | 113 | 42 | 16 | 4 | 0 | 0 | - | 253 |
Vermont | 2 | 36 | 19 | 3 | 2 | 1 | 0 | - | - | 60 |
Virginia | 14 | 80 | 209 | 77 | 40 | 25 | 11 | 9 | 5 | 455 |
Washington | - | 121 | 124 | 41 | 23 | 11 | 7 | 5 | 5 | 338 |
West Virginia | - | 17 | 129 | 24 | 10 | 2 | 3 | 2 | 0 | 187 |
Wisconsin | 1 | 82 | 91 | 40 | 39 | 11 | 7 | 5 | 3 | 278 |
Wyoming | - | 25 | 44 | 19 | 8 | 4 | 3 | 2 | 2 | 107 |
U.S. Total | 868 | 5,538 | 6,836 | 2,330 | 1,326 | 740 | 397 | 255 | 277 | 17,699 |
Puerto Rico (4) | 2 | - | 30 | 74 | 47 | 44 | 28 | 7 | 6 | 236 |
Grand Total | 870 | 5,538 | 6,866 | 2,404 | 1,373 | 784 | 425 | 262 | 283 | 17,935 |
October 2015
Table HM-64
4 of 4
STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) (1) | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OTHER FREEWAYS & EXPRESSWAYS | OTHER PRINCIPAL ARTERIAL | |||||||||||||||||||
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 | 0 | 12 | 10 | 4 | 2 | 1 | 0 | 0 | 0 | 30 | 25 | 439 | 473 | 136 | 78 | 50 | 33 | 25 | 32 | 1,266 |
Alaska | - | - | - | - | - | - | - | - | - | - | 4 | 7 | 40 | 26 | 17 | 14 | 10 | 6 | 15 | 134 |
Arizona | 22 | 90 | 71 | 18 | 9 | 2 | 1 | 0 | 1 | 194 | 213 | 104 | 193 | 109 | 80 | 46 | 28 | 20 | 53 | 633 |
Arkansas | 1 | 19 | 41 | 16 | 9 | 7 | 7 | 5 | 4 | 109 | 64 | 42 | 199 | 130 | 75 | 55 | 28 | 20 | 40 | 591 |
California | 179 | 101 | 393 | 274 | 194 | 143 | 78 | 50 | 71 | 1,303 | 2,087 | 50 | 265 | 386 | 585 | 716 | 636 | 679 | 1,245 | 4,561 |
Colorado | - | 36 | 129 | 68 | 39 | 22 | 14 | 7 | 10 | 324 | 0 | 50 | 192 | 164 | 190 | 156 | 105 | 71 | 140 | 1,068 |
Connecticut | 0 | 59 | 105 | 38 | 19 | 11 | 6 | 2 | 2 | 243 | - | 4 | 99 | 131 | 133 | 110 | 70 | 53 | 103 | 702 |
Delaware | - | 3 | 19 | 6 | 2 | 1 | 0 | 0 | - | 33 | - | 10 | 85 | 37 | 19 | 12 | 8 | 7 | 15 | 194 |
Dist. of Columbia | - | - | - | 3 | 3 | 3 | 1 | 2 | 4 | 16 | 0 | - | - | - | - | - | 7 | 5 | 95 | 106 |
Florida | 35 | 197 | 249 | 45 | 23 | 13 | 6 | 4 | 2 | 538 | 151 | 844 | 1,703 | 599 | 305 | 165 | 78 | 49 | 81 | 3,823 |
Georgia | 6 | 43 | 54 | 23 | 17 | 9 | 5 | 2 | 2 | 154 | 217 | 494 | 967 | 328 | 170 | 100 | 58 | 40 | 88 | 2,247 |
Hawaii | - | - | 4 | 6 | 7 | 5 | 3 | 3 | 5 | 34 | 2 | 24 | 45 | 41 | 38 | 38 | 24 | 19 | 34 | 263 |
Idaho | - | - | - | - | - | - | - | - | - | - | 55 | 52 | 122 | 64 | 46 | 33 | 22 | 17 | 40 | 396 |
Illinois | - | 2 | 53 | 22 | 12 | 10 | 9 | - | 0 | 109 | - | 192 | 715 | 660 | 604 | 403 | 233 | 176 | 239 | 3,221 |
Indiana | 0 | 54 | 42 | 24 | 15 | 9 | 4 | 4 | 5 | 157 | 26 | 237 | 430 | 239 | 191 | 154 | 106 | 77 | 183 | 1,617 |
Iowa | - | - | - | - | - | - | - | - | - | - | 53 | 91 | 217 | 143 | 101 | 77 | 49 | 37 | 106 | 821 |
Kansas | 3 | 77 | 64 | 14 | 12 | 6 | 3 | 1 | 1 | 177 | 53 | 63 | 97 | 36 | 54 | 35 | 27 | 31 | 16 | 358 |
Kentucky | 2 | 37 | 26 | 7 | 5 | 3 | 1 | 0 | 1 | 80 | 33 | 148 | 203 | 87 | 53 | 36 | 23 | 15 | 28 | 593 |
Louisiana | 4 | 7 | 7 | 6 | 6 | 6 | 4 | 2 | 2 | 39 | 115 | 80 | 200 | 145 | 131 | 116 | 83 | 77 | 170 | 1,002 |
Maine | - | 1 | 9 | 4 | 2 | 1 | 0 | - | - | 18 | - | 0 | 37 | 38 | 25 | 15 | 4 | 7 | 9 | 135 |
Maryland | 5 | 85 | 130 | 33 | 19 | 12 | 8 | 5 | 7 | 300 | 38 | 160 | 320 | 168 | 130 | 99 | 67 | 52 | 153 | 1,149 |
Massachusetts | 322 | - | - | - | - | - | - | - | - | - | 1,980 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 98 | 150 | 54 | 24 | 15 | 9 | 6 | 4 | 359 | 1 | 140 | 461 | 372 | 323 | 261 | 198 | 168 | 435 | 2,358 |
Minnesota | 0 | 32 | 67 | 24 | 14 | 11 | 6 | 3 | 5 | 162 | 36 | 167 | 259 | 113 | 79 | 53 | 30 | 22 | 50 | 772 |
Mississippi | - | 27 | 31 | 8 | 5 | 3 | 2 | 1 | 1 | 77 | 0 | 121 | 292 | 153 | 111 | 80 | 51 | 41 | 122 | 971 |
Missouri | 30 | 142 | 186 | 54 | 29 | 16 | 7 | 5 | 3 | 442 | 235 | 103 | 251 | 127 | 87 | 54 | 34 | 23 | 34 | 714 |
Montana | - | - | - | - | - | - | - | - | - | - | 6 | 24 | 68 | 43 | 31 | 21 | 15 | 10 | 35 | 248 |
Nebraska | - | 9 | 38 | 12 | 3 | 12 | 7 | 6 | 5 | 93 | 12 | 10 | 29 | 29 | 51 | 74 | 85 | 52 | 63 | 394 |
Nevada | 0 | 17 | 15 | 9 | 9 | 3 | 1 | 0 | 0 | 55 | 23 | 111 | 113 | 44 | 26 | 15 | 8 | 5 | 10 | 334 |
New Hampshire | - | 49 | 17 | 5 | 2 | 1 | 0 | 0 | 0 | 74 | 0 | 43 | 70 | 33 | 18 | 13 | 11 | 8 | 25 | 222 |
New Jersey | 1 | 119 | 178 | 57 | 32 | 22 | 17 | 11 | 16 | 452 | 10 | 93 | 293 | 242 | 238 | 220 | 164 | 133 | 412 | 1,794 |
New Mexico | - | - | - | - | - | - | - | - | - | - | 20 | 92 | 180 | 111 | 91 | 74 | 46 | 36 | 68 | 697 |
New York | 2 | 33 | 250 | 165 | 86 | 93 | 71 | 47 | 69 | 814 | 33 | 40 | 541 | 507 | 418 | 279 | 215 | 159 | 905 | 3,064 |
North Carolina | 40 | 121 | 206 | 55 | 25 | 11 | 5 | 2 | 3 | 429 | 70 | 144 | 691 | 407 | 263 | 151 | 83 | 56 | 112 | 1,907 |
North Dakota | - | - | - | - | - | - | - | - | - | - | - | 19 | 47 | 35 | 27 | 15 | 15 | 9 | 20 | 188 |
Ohio | 2 | 127 | 292 | 99 | 33 | 19 | 6 | 4 | 3 | 583 | 79 | 112 | 517 | 406 | 365 | 268 | 200 | 143 | 338 | 2,349 |
Oklahoma | 2 | 14 | 95 | 46 | 19 | 13 | 3 | 2 | 2 | 195 | 89 | 48 | 197 | 171 | 154 | 130 | 110 | 97 | 172 | 1,080 |
Oregon | 3 | 22 | 20 | 5 | 3 | 2 | 1 | 0 | 1 | 55 | 71 | 86 | 242 | 148 | 97 | 72 | 46 | 31 | 62 | 785 |
Pennsylvania | 15 | 69 | 192 | 99 | 68 | 37 | 22 | 10 | 12 | 508 | 151 | 131 | 564 | 471 | 404 | 310 | 223 | 180 | 369 | 2,652 |
Rhode Island | 1 | 13 | 29 | 16 | 9 | 4 | 3 | 2 | 1 | 77 | 59 | 2 | 20 | 29 | 38 | 45 | 35 | 30 | 84 | 284 |
South Carolina | - | 22 | 35 | 16 | 6 | 3 | 3 | - | 0 | 84 | 1 | 23 | 355 | 313 | 195 | 105 | 36 | 17 | 19 | 1,063 |
South Dakota | - | - | 3 | 9 | 3 | 1 | 0 | 0 | - | 16 | 3 | 6 | 31 | 20 | 22 | 30 | 12 | 5 | 8 | 133 |
Tennessee | 5 | 66 | 49 | 15 | 11 | 6 | 2 | 2 | 2 | 153 | 39 | 496 | 557 | 221 | 125 | 91 | 57 | 37 | 84 | 1,669 |
Texas | 16 | 185 | 592 | 301 | 202 | 114 | 54 | 27 | 19 | 1,494 | 96 | 490 | 1,584 | 977 | 709 | 546 | 363 | 305 | 1,004 | 5,978 |
Utah | - | 13 | 18 | 8 | 3 | 1 | 0 | - | - | 44 | - | 65 | 255 | 151 | 94 | 58 | 18 | 7 | 5 | 653 |
Vermont | 0 | 1 | 8 | 2 | 2 | 2 | 0 | 1 | 0 | 16 | 7 | 11 | 32 | 18 | 14 | 9 | 6 | 5 | 11 | 106 |
Virginia | 18 | 33 | 109 | 34 | 23 | 12 | 4 | 2 | 2 | 218 | 114 | 37 | 309 | 239 | 206 | 169 | 103 | 79 | 95 | 1,237 |
Washington | 0 | 110 | 176 | 59 | 29 | 17 | 10 | 6 | 8 | 415 | 0 | 45 | 212 | 206 | 190 | 160 | 133 | 122 | 352 | 1,420 |
West Virginia | - | 0 | 2 | 2 | 3 | 3 | 1 | - | 2 | 13 | 7 | 3 | 114 | 80 | 56 | 31 | 16 | 17 | 18 | 335 |
Wisconsin | 1 | 46 | 102 | 84 | 89 | 32 | 10 | 14 | 5 | 382 | 1 | 67 | 231 | 226 | 291 | 518 | 140 | 157 | 343 | 1,972 |
Wyoming | - | 1 | 0 | 0 | 0 | 0 | 0 | - | 0 | 3 | 2 | 26 | 70 | 42 | 27 | 18 | 11 | 10 | 22 | 226 |
U.S. Total | 714 | 2,193 | 4,271 | 1,849 | 1,129 | 714 | 394 | 241 | 279 | 11,070 | 6,278 | 5,847 | 15,186 | 9,600 | 7,775 | 6,301 | 4,164 | 3,448 | 8,163 | 60,483 |
Puerto Rico (4) | 2 | - | - | 3 | 9 | 12 | 11 | 7 | 8 | 50 | 13 | - | 4 | 26 | 53 | 65 | 74 | 55 | 111 | 388 |
Grand Total | 716 | 2,193 | 4,271 | 1,852 | 1,138 | 726 | 405 | 248 | 287 | 11,120 | 6,291 | 5,847 | 15,190 | 9,626 | 7,828 | 6,366 | 4,238 | 3,503 | 8,274 | 60,871 |
(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. Includes structures.
(2) May include unpaved miles.
(3) Estimated from sample data.
(4) 2009 data.