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 | 363 | 141 | 34 | 20 | 7 | 3 | 1 | 2 | 571 |
Alaska | - | 200 | 359 | 163 | 118 | 73 | 40 | 24 | 25 | 1,002 |
Arizona | 1 | 497 | 290 | 75 | 32 | 11 | 4 | 2 | 4 | 916 |
Arkansas | 0 | 194 | 137 | 41 | 18 | 8 | 5 | 3 | 3 | 409 |
California | - | 614 | 383 | 118 | 51 | 21 | 9 | 5 | 9 | 1,209 |
Colorado | - | 141 | 252 | 129 | 58 | 30 | 21 | 9 | 9 | 648 |
Connecticut | - | 12 | 10 | 4 | 2 | 0 | 0 | 0 | 0 | 29 |
Delaware | - | - | - | - | - | - | - | - | - | - |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - |
Florida | 105 | 376 | 206 | 18 | 8 | 3 | 1 | 0 | 0 | 612 |
Georgia | 1 | 239 | 201 | 55 | 22 | 10 | 4 | 2 | 2 | 534 |
Hawaii | - | - | - | - | - | - | - | - | - | - |
Idaho | - | 275 | 172 | 41 | 16 | 7 | 4 | 3 | 3 | 521 |
Illinois | - | 665 | 444 | 119 | 16 | - | - | - | - | 1,243 |
Indiana | 141 | 377 | 141 | 40 | 27 | 18 | 11 | 6 | 7 | 627 |
Iowa | 7 | 246 | 233 | 81 | 28 | 9 | 4 | 2 | 2 | 605 |
Kansas | - | 427 | 161 | 32 | 12 | 4 | 2 | 1 | 1 | 639 |
Kentucky | 1 | 444 | 116 | 31 | 16 | 9 | 3 | 1 | 1 | 622 |
Louisiana | 6 | 194 | 127 | 85 | 69 | 32 | 13 | 4 | 3 | 527 |
Maine | - | 203 | 70 | 20 | 4 | 2 | 0 | 0 | 0 | 299 |
Maryland | 0 | 49 | 74 | 11 | 4 | 1 | 1 | 0 | 1 | 142 |
Massachusetts | - | 19 | 32 | 7 | 2 | 1 | 0 | 0 | 1 | 64 |
Michigan | 5 | 214 | 220 | 60 | 31 | 17 | 11 | 5 | 3 | 561 |
Minnesota | - | 191 | 274 | 65 | 30 | 16 | 10 | 5 | 3 | 594 |
Mississippi | 2 | 338 | 137 | 31 | 20 | 13 | 7 | 4 | 4 | 552 |
Missouri | - | 470 | 291 | 48 | 17 | 9 | 4 | 2 | 0 | 842 |
Montana | - | 411 | 552 | 87 | 24 | 12 | 5 | 2 | 2 | 1,094 |
Nebraska | 8 | 266 | 99 | 26 | 11 | 3 | 1 | 1 | 1 | 407 |
Nevada | 0 | 388 | 30 | 11 | 8 | 7 | 2 | 1 | 0 | 448 |
New Hampshire | - | 120 | 20 | 2 | 0 | 0 | - | - | - | 142 |
New Jersey | - | 22 | 18 | 3 | 1 | 1 | 1 | 0 | 0 | 45 |
New Mexico | 1 | 562 | 200 | 46 | 22 | 8 | 4 | 2 | 1 | 845 |
New York | 20 | 273 | 349 | 77 | 35 | 17 | 12 | 9 | 11 | 783 |
North Carolina | 10 | 310 | 162 | 36 | 19 | 10 | 2 | 1 | 1 | 541 |
North Dakota | - | 237 | 231 | 33 | 7 | 3 | 0 | 0 | 0 | 511 |
Ohio | 1 | 324 | 221 | 52 | 23 | 12 | 5 | 3 | 2 | 642 |
Oklahoma | - | 285 | 240 | 57 | 28 | 18 | 9 | 6 | 3 | 646 |
Oregon | 0 | 247 | 176 | 50 | 13 | 5 | 2 | 1 | 1 | 495 |
Pennsylvania | 0 | 431 | 488 | 110 | 41 | 25 | 8 | 4 | 4 | 1,112 |
Rhode Island | - | 14 | 3 | 0 | 0 | - | 0 | 0 | 0 | 18 |
South Carolina | - | 116 | 281 | 85 | 58 | 3 | 2 | 0 | 1 | 546 |
South Dakota | - | 231 | 290 | 43 | 17 | 7 | 3 | 0 | 0 | 591 |
Tennessee | 10 | 490 | 54 | 10 | 5 | 3 | 1 | 0 | 0 | 564 |
Texas | - | 724 | 945 | 210 | 67 | 30 | 11 | 7 | 6 | 2,001 |
Utah | 1 | 388 | 239 | 41 | 10 | 4 | 1 | 1 | 0 | 683 |
Vermont | 0 | 204 | 46 | 5 | 2 | 1 | 0 | 0 | - | 258 |
Virginia | 0 | 161 | 234 | 49 | 18 | 5 | 2 | 0 | 0 | 469 |
Washington | - | 174 | 140 | 50 | 27 | 16 | 9 | 7 | 6 | 429 |
West Virginia | 11 | 118 | 143 | 19 | 9 | 5 | 3 | 1 | 1 | 298 |
Wisconsin | 0 | 194 | 169 | 60 | 36 | 26 | 18 | 6 | 4 | 512 |
Wyoming | - | 362 | 306 | 71 | 39 | 17 | 6 | 4 | 3 | 808 |
U.S. Total | 333 | 13,800 | 10,107 | 2,540 | 1,141 | 540 | 263 | 134 | 132 | 28,657 |
Puerto Rico (4) | - | - | 1 | 10 | 4 | 11 | 5 | 4 | 7 | 42 |
Grand Total | 333 | 13,800 | 10,108 | 2,550 | 1,145 | 551 | 268 | 138 | 139 | 28,699 |
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 | - | - | - | - | - | - | - | - | - | - | 13 | 906 | 831 | 148 | 67 | 34 | 17 | 9 | 10 | 2,022 | 20 | 858 | 1,429 | 608 | 331 | 115 | 41 | 15 | 9 | 3,405 |
Alaska | - | - | - | - | - | - | - | - | - | - | 263 | 65 | 128 | 58 | 52 | 53 | 39 | 38 | 107 | 539 | 83 | 43 | 57 | 39 | 48 | 47 | 38 | 23 | 39 | 334 |
Arizona | - | 17 | 0 | - | 0 | - | 0 | - | - | 18 | 19 | 417 | 451 | 156 | 87 | 45 | 18 | 9 | 8 | 1,191 | 8 | 220 | 426 | 260 | 152 | 85 | 41 | 23 | 14 | 1,221 |
Arkansas | 0 | 4 | 35 | 18 | 13 | 9 | 3 | 1 | 1 | 85 | 1 | 257 | 822 | 366 | 209 | 122 | 57 | 32 | 32 | 1,896 | 21 | 373 | 1,444 | 490 | 297 | 191 | 86 | 65 | 48 | 2,996 |
California | - | 154 | 172 | 45 | 22 | 9 | 3 | 1 | 2 | 408 | - | 801 | 1,343 | 510 | 254 | 158 | 65 | 46 | 110 | 3,287 | 72 | 438 | 2,400 | 1,077 | 642 | 750 | 429 | 126 | 195 | 6,057 |
Colorado | - | 6 | 8 | 9 | 4 | 1 | 1 | 0 | - | 28 | - | 510 | 1,074 | 499 | 250 | 123 | 58 | 27 | 27 | 2,569 | 284 | 99 | 813 | 698 | 699 | 364 | 159 | 99 | 111 | 3,043 |
Connecticut | - | 10 | 17 | 3 | 1 | 1 | 2 | 1 | 1 | 36 | - | 1 | 22 | 26 | 25 | 20 | 12 | 5 | 9 | 119 | 0 | - | 22 | 37 | 54 | 52 | 24 | 17 | 15 | 221 |
Delaware | 1 | 3 | 15 | 5 | 1 | 0 | 0 | - | 0 | 24 | 1 | 42 | 66 | 9 | 2 | 1 | 0 | 0 | 0 | 120 | 0 | 33 | 45 | 17 | 7 | 2 | 1 | 0 | 1 | 105 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Florida | - | 76 | 86 | 7 | 3 | 1 | 0 | 0 | - | 173 | 84 | 943 | 1,210 | 265 | 77 | 27 | 7 | 3 | 3 | 2,536 | 10 | 537 | 1,167 | 271 | 90 | 65 | 11 | 8 | 12 | 2,161 |
Georgia | - | - | - | - | - | - | - | - | - | - | 20 | 765 | 1,146 | 255 | 93 | 39 | 16 | 7 | 9 | 2,330 | 37 | 582 | 1,251 | 465 | 174 | 41 | 19 | 9 | 8 | 2,548 |
Hawaii | - | - | - | - | - | - | - | - | - | - | - | 1 | 19 | 14 | 13 | 14 | 8 | 6 | 4 | 78 | 1 | 45 | 50 | 45 | 46 | 34 | 17 | 10 | 10 | 255 |
Idaho | - | - | - | - | - | - | - | - | - | - | 45 | 454 | 817 | 252 | 99 | 44 | 19 | 10 | 10 | 1,706 | 6 | 233 | 590 | 184 | 87 | 33 | 21 | 13 | 14 | 1,176 |
Illinois | - | 1 | 17 | - | 12 | - | - | - | - | 30 | - | 348 | 1,118 | 410 | 242 | 108 | 52 | 12 | 4 | 2,295 | 16 | 112 | 2,462 | 1,013 | 614 | 331 | - | 19 | 9 | 4,558 |
Indiana | 5 | 68 | 38 | 16 | 9 | 3 | 1 | 0 | 1 | 136 | 41 | 541 | 516 | 169 | 86 | 43 | 22 | 11 | 19 | 1,408 | 13 | 650 | 760 | 326 | 170 | 106 | 54 | 35 | 17 | 2,118 |
Iowa | - | - | - | - | - | - | - | - | - | - | 26 | 852 | 1,071 | 585 | 365 | 234 | 122 | 86 | 78 | 3,393 | 20 | 632 | 1,289 | 549 | 351 | 374 | 214 | 130 | 295 | 3,834 |
Kansas | 1 | 169 | 188 | 31 | 10 | 3 | 1 | 0 | 0 | 403 | 7 | 1,513 | 838 | 148 | 61 | 30 | 13 | 8 | 9 | 2,620 | 34 | 2,080 | 1,615 | 326 | 82 | 55 | 37 | 24 | 13 | 4,231 |
Kentucky | 4 | 306 | 131 | 23 | 14 | 8 | 3 | 1 | 1 | 487 | 169 | 454 | 421 | 99 | 40 | 17 | 7 | 4 | 4 | 1,047 | 21 | 157 | 619 | 310 | 153 | 76 | 31 | 13 | 16 | 1,374 |
Louisiana | 0 | 0 | 8 | 7 | 5 | 2 | 1 | 1 | 0 | 24 | 2 | 153 | 437 | 172 | 104 | 67 | 43 | 25 | 29 | 1,029 | 17 | 219 | 776 | 347 | 218 | 142 | 73 | 36 | 63 | 1,874 |
Maine | - | - | - | - | - | - | - | - | - | - | - | 142 | 386 | 108 | 63 | 47 | 18 | 14 | 12 | 789 | 5 | 129 | 413 | 150 | 102 | 58 | 40 | 26 | 35 | 953 |
Maryland | - | - | - | - | - | - | - | - | - | - | 1 | 150 | 134 | 22 | 11 | 8 | 5 | 2 | 4 | 334 | 3 | 187 | 352 | 111 | 48 | 20 | 3 | 3 | 0 | 726 |
Massachusetts | - | 3 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 10 | - | 12 | 37 | 26 | 15 | 6 | 3 | 2 | 3 | 105 | 1 | 9 | 103 | 57 | 47 | 46 | 28 | 16 | 10 | 315 |
Michigan | 1 | 188 | 99 | 28 | 10 | 9 | 6 | 2 | 2 | 344 | 0 | 921 | 804 | 206 | 95 | 52 | 22 | 12 | 19 | 2,130 | 10 | 950 | 2,129 | 673 | 335 | 217 | 126 | 86 | 157 | 4,673 |
Minnesota | - | - | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 4 | 29 | 1,172 | 1,104 | 518 | 294 | 174 | 91 | 50 | 49 | 3,452 | 16 | 2,093 | 2,088 | 791 | 456 | 316 | 157 | 211 | 409 | 6,520 |
Mississippi | - | - | - | - | - | - | - | - | - | - | - | 500 | 752 | 247 | 138 | 78 | 33 | 17 | 19 | 1,783 | 30 | 497 | 1,232 | 642 | 534 | 406 | 251 | 97 | 86 | 3,746 |
Missouri | - | 381 | 417 | 92 | 24 | 7 | 3 | 0 | 1 | 926 | 1 | 653 | 894 | 260 | 114 | 58 | 28 | 15 | 9 | 2,032 | 25 | 173 | 1,440 | 1,200 | 596 | 330 | 121 | 62 | 44 | 3,965 |
Montana | - | - | - | - | - | - | - | - | - | - | - | 690 | 1,339 | 386 | 165 | 80 | 50 | 28 | 36 | 2,773 | 9 | 434 | 1,414 | 473 | 243 | 130 | 53 | 37 | 59 | 2,843 |
Nebraska | 35 | 63 | 131 | 51 | 25 | 14 | 6 | 4 | 3 | 297 | 216 | 1,055 | 633 | 198 | 107 | 67 | 34 | 19 | 24 | 2,136 | 25 | 1,119 | 1,086 | 582 | 371 | 222 | 119 | 90 | 91 | 3,680 |
Nevada | - | - | - | - | - | - | - | - | - | - | 14 | 844 | 469 | 90 | 21 | 13 | 14 | 16 | 24 | 1,490 | 1 | 136 | 430 | 113 | 30 | 7 | 4 | 1 | 1 | 721 |
New Hampshire | - | 9 | 0 | - | - | - | - | - | - | 9 | 0 | 143 | 105 | 25 | 14 | 11 | 9 | 6 | 11 | 324 | 4 | 167 | 201 | 68 | 35 | 33 | 30 | 22 | 70 | 626 |
New Jersey | - | 9 | 19 | 6 | 1 | 1 | 0 | 0 | 0 | 35 | 0 | 29 | 38 | 23 | 24 | 16 | 10 | 7 | 11 | 157 | 1 | 8 | 73 | 71 | 39 | 39 | 24 | 6 | 6 | 267 |
New Mexico | - | - | - | - | - | - | - | - | - | - | 54 | 813 | 651 | 198 | 110 | 63 | 24 | 15 | 13 | 1,887 | 7 | 465 | 503 | 395 | 306 | 152 | 117 | 84 | 93 | 2,116 |
New York | 6 | 16 | 57 | 15 | 8 | 5 | 3 | 1 | 2 | 107 | 9 | 242 | 1,003 | 420 | 212 | 118 | 59 | 32 | 35 | 2,122 | 18 | 197 | 1,141 | 695 | 353 | 199 | 91 | 87 | 109 | 2,873 |
North Carolina | 10 | 216 | 152 | 18 | 7 | 3 | 1 | 0 | 0 | 397 | 31 | 250 | 811 | 256 | 111 | 42 | 18 | 10 | 17 | 1,517 | 9 | 141 | 1,293 | 691 | 449 | 181 | 72 | 60 | 76 | 2,963 |
North Dakota | - | - | - | - | - | - | - | - | - | - | 3 | 1,092 | 1,136 | 403 | 166 | 84 | 32 | 20 | 25 | 2,960 | 5 | 713 | 1,125 | 352 | 149 | 102 | 38 | 21 | 18 | 2,516 |
Ohio | 0 | 125 | 141 | 36 | 16 | 8 | 3 | 1 | 1 | 331 | 4 | 421 | 678 | 231 | 96 | 45 | 20 | 10 | 11 | 1,513 | 12 | 504 | 1,320 | 464 | 203 | 82 | 38 | 12 | 26 | 2,649 |
Oklahoma | - | - | - | - | - | - | - | - | - | - | 1 | 445 | 936 | 385 | 209 | 130 | 65 | 38 | 43 | 2,251 | 19 | 549 | 1,164 | 265 | 530 | 87 | 21 | 39 | 9 | 2,664 |
Oregon | - | - | - | - | - | - | - | - | - | - | 0 | 596 | 1,326 | 417 | 166 | 72 | 36 | 21 | 23 | 2,657 | 13 | 238 | 966 | 474 | 278 | 139 | 58 | 33 | 34 | 2,222 |
Pennsylvania | 1 | 133 | 146 | 29 | 20 | 12 | 8 | 5 | 4 | 357 | 1 | 306 | 709 | 266 | 121 | 73 | 36 | 22 | 29 | 1,562 | - | 271 | 1,524 | 1,193 | 562 | 403 | 233 | 137 | 220 | 4,543 |
Rhode Island | - | 4 | 2 | 3 | 1 | 1 | 0 | - | - | 11 | - | 0 | 12 | 13 | 18 | 18 | 13 | 9 | 14 | 97 | 0 | 5 | 9 | 9 | 13 | 11 | 9 | 8 | 8 | 72 |
South Carolina | - | 5 | 28 | 9 | 3 | 0 | - | - | - | 45 | - | 38 | 673 | 379 | 302 | 78 | 36 | 24 | 15 | 1,546 | - | 330 | 943 | 908 | 398 | 228 | 178 | - | - | 2,986 |
South Dakota | - | 81 | 127 | 40 | 27 | 11 | 4 | 1 | 1 | 291 | - | 298 | 1,072 | 588 | 298 | 162 | 84 | 50 | 42 | 2,593 | 5 | 462 | 1,207 | 556 | 325 | 191 | 109 | 73 | 39 | 2,962 |
Tennessee | - | - | - | - | - | - | - | - | - | - | 9 | 779 | 657 | 157 | 68 | 40 | 16 | 7 | 6 | 1,729 | 17 | 1,003 | 1,132 | 301 | 150 | 98 | 31 | 122 | 98 | 2,936 |
Texas | - | 0 | 2 | 1 | 0 | 0 | 0 | - | - | 4 | 18 | 1,764 | 3,695 | 1,590 | 761 | 340 | 140 | 70 | 60 | 8,420 | 80 | 1,056 | 3,752 | 2,325 | 1,323 | 717 | 278 | 115 | 130 | 9,697 |
Utah | - | 0 | 4 | 3 | 1 | 1 | - | 0 | - | 9 | 326 | 163 | 409 | 143 | 66 | 33 | 12 | 6 | 5 | 838 | 2 | 40 | 195 | 147 | 107 | 87 | 47 | 19 | 14 | 655 |
Vermont | - | 0 | 1 | 0 | - | - | - | - | - | 2 | 1 | 57 | 143 | 50 | 27 | 13 | 7 | 6 | 7 | 311 | 5 | 167 | 316 | 74 | 50 | 30 | 25 | 21 | 44 | 727 |
Virginia | 7 | 15 | 51 | 11 | 2 | 1 | 0 | 0 | 0 | 81 | 23 | 153 | 681 | 265 | 104 | 41 | 17 | 9 | 4 | 1,273 | 14 | 150 | 1,528 | 901 | 342 | 148 | 59 | 37 | 18 | 3,182 |
Washington | - | 144 | 268 | 107 | 39 | 19 | 13 | 10 | 13 | 614 | - | 204 | 647 | 247 | 108 | 54 | 24 | 13 | 15 | 1,312 | 10 | 285 | 705 | 394 | 249 | 179 | 85 | 68 | 56 | 2,021 |
West Virginia | - | 1 | 5 | 2 | 1 | 0 | 0 | - | - | 9 | 5 | 92 | 401 | 216 | 127 | 66 | 35 | 22 | 30 | 990 | 362 | 5 | 354 | 353 | 229 | 119 | 60 | 50 | 27 | 1,197 |
Wisconsin | - | 36 | 34 | 26 | 25 | 12 | 5 | 3 | 1 | 142 | - | 670 | 977 | 528 | 335 | 164 | 96 | 64 | 97 | 2,931 | 11 | 1,038 | 1,019 | 734 | 640 | 444 | 273 | 194 | 404 | 4,746 |
Wyoming | - | - | - | - | - | - | - | - | - | - | 29 | 445 | 921 | 336 | 147 | 62 | 23 | 12 | 9 | 1,955 | 4 | 194 | 557 | 235 | 112 | 64 | 29 | 19 | 17 | 1,227 |
U.S. Total | 72 | 2,244 | 2,403 | 642 | 303 | 144 | 68 | 36 | 34 | 5,876 | 1,463 | 24,161 | 36,561 | 13,340 | 6,742 | 3,488 | 1,686 | 986 | 1,192 | 88,155 | 1,387 | 21,026 | 48,927 | 23,458 | 13,818 | 8,350 | 4,101 | 2,526 | 3,297 | 125,503 |
Puerto Rico (4) | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 3 | 23 | 6 | 2 | - | 7 | 42 | 13 | - | - | - | - | 18 | 30 | 38 | 132 | 218 |
Grand Total | 72 | 2,244 | 2,403 | 642 | 303 | 144 | 68 | 36 | 34 | 5,876 | 1,464 | 24,161 | 36,562 | 13,343 | 6,765 | 3,494 | 1,688 | 986 | 1,199 | 88,197 | 1,400 | 21,026 | 48,927 | 23,458 | 13,818 | 8,368 | 4,131 | 2,564 | 3,429 | 125,721 |
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 | 218 | 109 | 32 | 25 | 16 | 11 | 8 | 8 | 427 |
Alaska | - | 17 | 40 | 11 | 5 | 3 | 2 | 1 | 1 | 79 |
Arizona | 0 | 148 | 71 | 21 | 8 | 3 | 1 | 1 | 0 | 252 |
Arkansas | 0 | 90 | 101 | 39 | 22 | 18 | 11 | 6 | 6 | 293 |
California | 0 | 349 | 448 | 150 | 110 | 76 | 48 | 26 | 34 | 1,241 |
Colorado | - | 67 | 121 | 60 | 32 | 12 | 5 | 3 | 4 | 304 |
Connecticut | - | 130 | 104 | 40 | 21 | 11 | 5 | 4 | 3 | 317 |
Delaware | 5 | 3 | 21 | 7 | 2 | 1 | 0 | 0 | 0 | 36 |
Dist. of Columbia | - | - | - | - | 5 | 2 | 0 | 1 | 4 | 12 |
Florida | 98 | 314 | 273 | 51 | 24 | 10 | 5 | 1 | 1 | 680 |
Georgia | 2 | 357 | 216 | 66 | 34 | 17 | 9 | 6 | 5 | 710 |
Hawaii | - | 1 | 12 | 9 | 10 | 9 | 5 | 4 | 4 | 55 |
Idaho | - | 36 | 34 | 11 | 5 | 3 | 1 | 1 | 1 | 90 |
Illinois | - | 256 | 469 | 113 | 79 | 17 | 6 | 1 | 2 | 942 |
Indiana | 94 | 148 | 105 | 64 | 36 | 21 | 14 | 8 | 10 | 404 |
Iowa | 4 | 50 | 75 | 23 | 11 | 7 | 3 | 2 | 1 | 172 |
Kansas | 3 | 101 | 69 | 29 | 16 | 9 | 5 | 2 | 1 | 232 |
Kentucky | - | 114 | 65 | 18 | 12 | 6 | 3 | 2 | 2 | 220 |
Louisiana | 1 | 105 | 90 | 54 | 49 | 51 | 23 | 17 | 15 | 403 |
Maine | - | 33 | 19 | 6 | 3 | 2 | 1 | 1 | 1 | 66 |
Maryland | 1 | 115 | 132 | 33 | 19 | 13 | 8 | 7 | 10 | 337 |
Massachusetts | 2 | 300 | 140 | 21 | 11 | 8 | 5 | 6 | 15 | 508 |
Michigan | 3 | 182 | 264 | 90 | 52 | 41 | 25 | 17 | 13 | 683 |
Minnesota | 9 | 71 | 130 | 52 | 24 | 15 | 10 | 4 | 6 | 312 |
Mississippi | - | 131 | 63 | 22 | 16 | 11 | 5 | 3 | 2 | 253 |
Missouri | 0 | 256 | 179 | 46 | 25 | 16 | 8 | 4 | 3 | 538 |
Montana | - | 39 | 44 | 7 | 3 | 2 | 1 | 0 | 1 | 98 |
Nebraska | 6 | 20 | 25 | 8 | 4 | 2 | 1 | 1 | - | 61 |
Nevada | 0 | 79 | 31 | 18 | 12 | 6 | 2 | 1 | 0 | 150 |
New Hampshire | - | 64 | 14 | 3 | 1 | 1 | 0 | 0 | - | 83 |
New Jersey | 1 | 128 | 138 | 42 | 23 | 16 | 10 | 11 | 17 | 386 |
New Mexico | 0 | 102 | 27 | 10 | 8 | 4 | 1 | 1 | 1 | 153 |
New York | 22 | 209 | 378 | 116 | 68 | 46 | 33 | 22 | 48 | 919 |
North Carolina | 34 | 267 | 273 | 82 | 37 | 15 | 6 | 3 | 2 | 686 |
North Dakota | - | 17 | 30 | 8 | 3 | 2 | 0 | - | 0 | 60 |
Ohio | 0 | 349 | 355 | 96 | 61 | 36 | 16 | 9 | 9 | 931 |
Oklahoma | 0 | 71 | 119 | 39 | 21 | 15 | 9 | 5 | 8 | 286 |
Oregon | - | 81 | 106 | 22 | 9 | 7 | 5 | 3 | 2 | 234 |
Pennsylvania | 7 | 211 | 321 | 88 | 58 | 33 | 16 | 12 | 10 | 748 |
Rhode Island | - | 19 | 23 | 5 | 2 | 1 | 1 | 1 | 1 | 52 |
South Carolina | - | 48 | 128 | 65 | 37 | 19 | 5 | 2 | 0 | 304 |
South Dakota | - | 11 | 50 | 14 | 7 | 4 | 1 | 0 | 0 | 88 |
Tennessee | 4 | 371 | 96 | 29 | 15 | 7 | 4 | 2 | 3 | 526 |
Texas | 1 | 315 | 568 | 235 | 142 | 82 | 38 | 21 | 14 | 1,415 |
Utah | 0 | 89 | 96 | 37 | 16 | 10 | 4 | 1 | 0 | 253 |
Vermont | 2 | 35 | 19 | 4 | 1 | 1 | 0 | - | - | 60 |
Virginia | 15 | 152 | 289 | 104 | 48 | 26 | 12 | 6 | 3 | 638 |
Washington | - | 113 | 122 | 46 | 20 | 12 | 7 | 7 | 7 | 335 |
West Virginia | 3 | 101 | 91 | 21 | 14 | 8 | 3 | 1 | 2 | 241 |
Wisconsin | - | 105 | 96 | 78 | 37 | 23 | 14 | 6 | 5 | 363 |
Wyoming | - | 26 | 45 | 18 | 7 | 4 | 2 | 1 | 2 | 106 |
U.S. Total | 321 | 6,615 | 6,835 | 2,260 | 1,310 | 777 | 411 | 249 | 285 | 18,742 |
Puerto Rico (4) | 2 | - | 30 | 74 | 47 | 44 | 28 | 7 | 6 | 236 |
Grand Total | 323 | 6,615 | 6,865 | 2,334 | 1,357 | 821 | 439 | 256 | 291 | 18,978 |
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 | 11 | 8 | 4 | 1 | 1 | 1 | 0 | 0 | 26 | 132 | 427 | 441 | 123 | 65 | 44 | 25 | 16 | 24 | 1,165 |
Alaska | - | - | - | - | - | - | - | - | - | - | - | 10 | 43 | 24 | 17 | 13 | 9 | 6 | 13 | 136 |
Arizona | 22 | 72 | 87 | 19 | 9 | 4 | 1 | 0 | 1 | 192 | 181 | 87 | 176 | 122 | 91 | 59 | 38 | 27 | 62 | 662 |
Arkansas | 6 | 16 | 42 | 19 | 12 | 8 | 6 | 5 | 3 | 110 | 29 | 41 | 182 | 119 | 85 | 55 | 37 | 24 | 57 | 601 |
California | - | 317 | 569 | 265 | 169 | 107 | 58 | 38 | 53 | 1,576 | - | 195 | 504 | 635 | 738 | 779 | 698 | 643 | 2,388 | 6,579 |
Colorado | - | 27 | 136 | 67 | 42 | 25 | 13 | 7 | 7 | 324 | 0 | 55 | 188 | 161 | 180 | 158 | 100 | 79 | 145 | 1,068 |
Connecticut | - | 51 | 112 | 40 | 18 | 10 | 4 | 3 | 7 | 244 | - | 4 | 61 | 97 | 109 | 95 | 71 | 57 | 217 | 710 |
Delaware | 2 | 7 | 16 | 5 | 1 | 0 | 0 | 0 | 0 | 30 | 5 | 26 | 83 | 31 | 18 | 11 | 6 | 5 | 10 | 189 |
Dist. of Columbia | - | - | - | 2 | 3 | 4 | 2 | 2 | 3 | 16 | - | - | - | - | - | 2 | 1 | 3 | 101 | 107 |
Florida | 39 | 188 | 252 | 46 | 23 | 13 | 6 | 4 | 2 | 533 | 171 | 868 | 1,644 | 607 | 320 | 158 | 83 | 50 | 73 | 3,805 |
Georgia | 30 | 42 | 42 | 19 | 14 | 8 | 4 | 2 | 2 | 133 | 299 | 531 | 853 | 262 | 141 | 74 | 40 | 29 | 77 | 2,006 |
Hawaii | - | - | 4 | 6 | 7 | 5 | 3 | 3 | 5 | 34 | - | 20 | 48 | 43 | 37 | 40 | 24 | 18 | 36 | 265 |
Idaho | - | - | - | - | - | - | - | - | - | - | 67 | 64 | 122 | 63 | 40 | 33 | 26 | 18 | 38 | 405 |
Illinois | - | 6 | 49 | 17 | 17 | 8 | 12 | - | - | 109 | - | 196 | 719 | 670 | 569 | 347 | 216 | 186 | 247 | 3,150 |
Indiana | 41 | 43 | 36 | 22 | 13 | 7 | 3 | 3 | 2 | 129 | 619 | 220 | 332 | 159 | 112 | 82 | 52 | 37 | 64 | 1,057 |
Iowa | - | - | - | - | - | - | - | - | - | - | 58 | 68 | 183 | 168 | 130 | 94 | 57 | 48 | 101 | 848 |
Kansas | 0 | 76 | 67 | 17 | 13 | 7 | 3 | 4 | 1 | 187 | 13 | 72 | 104 | 44 | 36 | 24 | 15 | 13 | 16 | 325 |
Kentucky | 3 | 33 | 17 | 7 | 5 | 3 | 2 | 1 | 0 | 70 | 104 | 130 | 168 | 74 | 52 | 38 | 18 | 15 | 26 | 522 |
Louisiana | 0 | 7 | 10 | 8 | 10 | 14 | 10 | 7 | 7 | 72 | 90 | 85 | 204 | 144 | 122 | 107 | 83 | 69 | 169 | 984 |
Maine | - | 4 | 8 | 1 | 2 | 2 | 0 | 1 | 0 | 18 | - | 7 | 47 | 21 | 16 | 11 | 9 | 5 | 18 | 134 |
Maryland | 1 | 79 | 131 | 36 | 23 | 14 | 7 | 4 | 9 | 303 | 14 | 160 | 320 | 161 | 126 | 94 | 69 | 50 | 189 | 1,169 |
Massachusetts | 2 | 105 | 108 | 35 | 21 | 16 | 10 | 7 | 18 | 320 | 117 | 36 | 205 | 266 | 274 | 266 | 202 | 172 | 442 | 1,863 |
Michigan | 0 | 89 | 158 | 54 | 25 | 12 | 8 | 6 | 5 | 356 | 31 | 122 | 458 | 370 | 313 | 265 | 202 | 167 | 432 | 2,330 |
Minnesota | 3 | 28 | 65 | 29 | 14 | 10 | 5 | 4 | 5 | 159 | 23 | 175 | 270 | 119 | 70 | 46 | 24 | 22 | 59 | 785 |
Mississippi | - | 17 | 29 | 8 | 5 | 3 | 2 | 1 | 1 | 64 | 7 | 115 | 257 | 158 | 108 | 80 | 56 | 40 | 135 | 949 |
Missouri | 4 | 152 | 199 | 57 | 29 | 18 | 10 | 5 | 5 | 475 | 29 | 117 | 305 | 144 | 101 | 73 | 45 | 31 | 58 | 873 |
Montana | - | - | - | - | - | - | - | - | - | - | 6 | 25 | 65 | 45 | 31 | 21 | 16 | 12 | 32 | 248 |
Nebraska | 23 | 18 | 39 | 15 | 8 | 7 | 5 | 4 | 8 | 104 | 119 | 16 | 42 | 34 | 36 | 34 | 26 | 24 | 64 | 276 |
Nevada | 0 | 28 | 9 | 8 | 7 | 2 | 1 | 0 | 0 | 55 | 4 | 124 | 111 | 46 | 28 | 17 | 9 | 7 | 12 | 354 |
New Hampshire | - | 56 | 14 | 3 | 1 | 0 | 0 | 0 | 0 | 74 | 1 | 43 | 67 | 35 | 21 | 14 | 10 | 8 | 22 | 221 |
New Jersey | 1 | 128 | 183 | 53 | 29 | 21 | 14 | 8 | 16 | 452 | 3 | 86 | 292 | 237 | 225 | 208 | 155 | 141 | 456 | 1,801 |
New Mexico | - | 1 | 8 | 2 | 0 | 0 | - | - | - | 11 | 72 | 90 | 145 | 93 | 83 | 66 | 42 | 30 | 63 | 612 |
New York | 4 | 54 | 244 | 134 | 99 | 89 | 63 | 47 | 79 | 810 | 33 | 76 | 626 | 477 | 366 | 287 | 212 | 184 | 836 | 3,065 |
North Carolina | 30 | 130 | 201 | 56 | 25 | 12 | 4 | 2 | 4 | 435 | 60 | 131 | 685 | 408 | 261 | 150 | 83 | 55 | 143 | 1,917 |
North Dakota | - | - | - | - | - | - | - | - | - | - | - | 18 | 46 | 35 | 29 | 21 | 12 | 8 | 19 | 188 |
Ohio | 2 | 174 | 249 | 66 | 39 | 25 | 12 | 7 | 8 | 579 | 17 | 182 | 572 | 396 | 321 | 260 | 180 | 140 | 358 | 2,411 |
Oklahoma | 3 | 35 | 79 | 29 | 20 | 16 | 7 | 4 | 5 | 195 | 65 | 82 | 195 | 168 | 147 | 132 | 108 | 95 | 176 | 1,104 |
Oregon | - | 23 | 21 | 7 | 2 | 1 | 1 | 0 | 1 | 57 | 5 | 98 | 256 | 155 | 100 | 71 | 48 | 37 | 85 | 851 |
Pennsylvania | 2 | 77 | 195 | 99 | 68 | 41 | 22 | 11 | 11 | 524 | 9 | 150 | 605 | 479 | 408 | 338 | 227 | 186 | 410 | 2,804 |
Rhode Island | 0 | 8 | 31 | 15 | 10 | 6 | 4 | 2 | 3 | 80 | 1 | 2 | 20 | 30 | 49 | 51 | 41 | 41 | 108 | 341 |
South Carolina | - | 10 | 43 | 18 | 6 | 3 | 3 | 0 | 0 | 84 | - | 26 | 272 | 321 | 233 | 127 | 39 | 26 | 21 | 1,064 |
South Dakota | - | 1 | 9 | 4 | 2 | 1 | 1 | 0 | 0 | 18 | 0 | 6 | 28 | 21 | 17 | 14 | 14 | 10 | 23 | 134 |
Tennessee | 9 | 64 | 50 | 16 | 10 | 6 | 4 | 2 | 2 | 155 | 45 | 532 | 588 | 238 | 129 | 94 | 52 | 41 | 75 | 1,750 |
Texas | 7 | 189 | 583 | 311 | 196 | 122 | 57 | 23 | 20 | 1,503 | 128 | 488 | 1,566 | 1,014 | 741 | 588 | 381 | 307 | 870 | 5,955 |
Utah | 11 | 14 | 13 | 4 | 1 | 1 | 0 | 0 | 0 | 33 | 113 | 98 | 208 | 96 | 58 | 35 | 18 | 13 | 13 | 537 |
Vermont | 0 | 3 | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 16 | 5 | 10 | 34 | 19 | 13 | 9 | 6 | 5 | 13 | 108 |
Virginia | 14 | 67 | 160 | 57 | 26 | 19 | 8 | 4 | 4 | 345 | 41 | 98 | 497 | 353 | 251 | 181 | 113 | 78 | 115 | 1,684 |
Washington | - | 113 | 181 | 55 | 25 | 15 | 8 | 7 | 13 | 417 | 19 | 47 | 249 | 243 | 182 | 157 | 108 | 96 | 339 | 1,421 |
West Virginia | - | 0 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 14 | 6 | 26 | 154 | 84 | 53 | 34 | 22 | 15 | 20 | 409 |
Wisconsin | - | 40 | 86 | 80 | 59 | 32 | 14 | 7 | 11 | 329 | 3 | 85 | 279 | 293 | 303 | 268 | 167 | 144 | 401 | 1,940 |
Wyoming | - | 1 | 0 | 0 | 0 | 0 | 0 | - | 0 | 3 | 12 | 23 | 68 | 40 | 27 | 16 | 11 | 10 | 22 | 217 |
U.S. Total | 261 | 2,602 | 4,555 | 1,819 | 1,111 | 725 | 401 | 237 | 327 | 11,777 | 2,756 | 6,396 | 15,586 | 10,147 | 7,984 | 6,240 | 4,307 | 3,543 | 9,895 | 64,099 |
Puerto Rico (4) | 2 | - | - | 3 | 9 | 12 | 11 | 7 | 8 | 50 | 13 | - | 4 | 26 | 53 | 65 | 74 | 55 | 111 | 388 |
Grand Total | 263 | 2,602 | 4,555 | 1,822 | 1,120 | 737 | 412 | 244 | 335 | 11,827 | 2,769 | 6,396 | 15,590 | 10,173 | 8,037 | 6,305 | 4,381 | 3,598 | 10,006 | 64,487 |
(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.