U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
October 2015
Table HM-47
Sheet 1 of 4
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 | 1 | 327 | 167 | 40 | 20 | 8 | 4 | 3 | 3 | 571 | 1 | 916 | 807 | 151 | 63 | 35 | 18 | 10 | 9 | 2,008 |
Alaska | 12 | 169 | 329 | 178 | 130 | 86 | 48 | 24 | 27 | 991 | 272 | 80 | 165 | 90 | 83 | 72 | 64 | 51 | 115 | 721 |
Arizona | 1 | 488 | 291 | 73 | 32 | 22 | 7 | 4 | 4 | 920 | 29 | 481 | 412 | 138 | 78 | 39 | 14 | 6 | 4 | 1,171 |
Arkansas | 5 | 170 | 149 | 43 | 22 | 11 | 5 | 3 | 2 | 405 | 89 | 297 | 860 | 355 | 196 | 103 | 45 | 19 | 12 | 1,887 |
California | 23 | 358 | 418 | 151 | 119 | 67 | 31 | 17 | 23 | 1,185 | 1,927 | 256 | 635 | 319 | 176 | 98 | 37 | 26 | 46 | 1,592 |
Colorado | - | 99 | 283 | 128 | 63 | 39 | 20 | 10 | 6 | 648 | - | 491 | 1,093 | 490 | 253 | 131 | 59 | 31 | 30 | 2,576 |
Connecticut | - | 9 | 13 | 5 | 0 | 1 | 0 | 0 | 0 | 29 | - | 13 | 60 | 38 | 20 | 9 | 3 | 3 | 4 | 150 |
Delaware | - | - | - | - | - | - | - | - | - | - | - | 39 | 90 | 20 | 3 | 2 | 1 | 0 | 0 | 154 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Florida | 75 | 395 | 217 | 18 | 9 | 2 | 1 | 0 | 0 | 643 | 72 | 1,000 | 1,290 | 254 | 70 | 29 | 7 | 4 | 3 | 2,658 |
Georgia | 0 | 250 | 187 | 58 | 23 | 10 | 4 | 2 | 2 | 536 | 45 | 881 | 1,603 | 386 | 128 | 52 | 18 | 10 | 13 | 3,090 |
Hawaii | - | - | - | - | - | - | - | - | - | - | 0 | 1 | 19 | 17 | 16 | 11 | 6 | 4 | 5 | 80 |
Idaho | - | 276 | 169 | 45 | 17 | 7 | 4 | 3 | 1 | 522 | 16 | 490 | 844 | 239 | 89 | 40 | 18 | 11 | 8 | 1,736 |
Illinois | - | 597 | 509 | 121 | 16 | - | - | - | - | 1,243 | - | 406 | 1,114 | 390 | 250 | 111 | 29 | 10 | 8 | 2,317 |
Indiana | 101 | 376 | 150 | 43 | 25 | 17 | 10 | 6 | 8 | 634 | 3 | 713 | 610 | 173 | 83 | 37 | 20 | 9 | 19 | 1,665 |
Iowa | 3 | 285 | 204 | 64 | 28 | 12 | 6 | 3 | 7 | 609 | 155 | 807 | 985 | 467 | 309 | 215 | 135 | 95 | 163 | 3,176 |
Kansas | - | 435 | 163 | 30 | 13 | 4 | 2 | 0 | 0 | 647 | 17 | 1,737 | 982 | 192 | 67 | 36 | 14 | 7 | 5 | 3,039 |
Kentucky | 7 | 443 | 103 | 22 | 8 | 4 | 1 | 1 | 0 | 582 | 27 | 793 | 679 | 160 | 59 | 26 | 9 | 5 | 6 | 1,737 |
Louisiana | 1 | 224 | 123 | 82 | 59 | 30 | 9 | 4 | 2 | 532 | 33 | 210 | 429 | 157 | 95 | 65 | 35 | 22 | 23 | 1,036 |
Maine | - | 193 | 81 | 19 | - | 6 | - | 0 | - | 299 | - | 43 | 332 | 222 | 108 | 59 | 27 | 1 | 1 | 795 |
Maryland | 1 | 54 | 70 | 11 | 3 | 1 | 1 | 0 | 1 | 141 | 15 | 157 | 135 | 25 | 15 | 8 | 4 | 3 | 3 | 348 |
Massachusetts | 64 | - | - | - | - | - | - | - | - | - | 121 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 210 | 223 | 62 | 30 | 20 | 13 | 4 | 5 | 566 | 4 | 1,195 | 865 | 216 | 98 | 52 | 25 | 13 | 20 | 2,486 |
Minnesota | - | 210 | 261 | 62 | 28 | 17 | 9 | 4 | 2 | 594 | 17 | 1,056 | 1,265 | 533 | 276 | 158 | 72 | 40 | 50 | 3,450 |
Mississippi | - | 279 | 133 | 29 | 14 | 8 | 4 | 4 | 2 | 473 | - | 604 | 763 | 242 | 139 | 72 | 31 | 15 | 16 | 1,881 |
Missouri | 0 | 511 | 265 | 38 | 16 | 6 | 3 | 2 | 1 | 841 | 15 | 1,013 | 1,281 | 366 | 151 | 81 | 41 | 20 | 16 | 2,969 |
Montana | - | 401 | 571 | 77 | 27 | 12 | 4 | 1 | 2 | 1,094 | - | 715 | 1,327 | 389 | 166 | 80 | 37 | 24 | 35 | 2,773 |
Nebraska | - | 245 | 132 | 38 | 1 | 1 | - | - | - | 416 | 7 | 1,035 | 911 | 394 | 239 | 89 | 33 | 47 | 14 | 2,761 |
Nevada | 0 | 205 | 70 | 33 | 35 | 33 | 25 | 19 | 29 | 448 | 5 | 399 | 703 | 282 | 77 | 20 | 14 | 16 | 24 | 1,536 |
New Hampshire | - | 117 | 18 | 4 | 1 | 1 | 1 | 0 | 0 | 142 | 1 | 138 | 137 | 41 | 25 | 16 | 11 | 8 | 11 | 388 |
New Jersey | - | 25 | 16 | 2 | 1 | 1 | 0 | 0 | 0 | 45 | 0 | 27 | 53 | 35 | 31 | 19 | 12 | 6 | 10 | 193 |
New Mexico | 1 | 583 | 196 | 38 | 15 | 6 | 4 | 1 | 1 | 845 | 2 | 795 | 614 | 176 | 87 | 44 | 20 | 12 | 9 | 1,757 |
New York | - | 198 | 439 | 92 | 33 | 15 | 8 | 6 | 11 | 803 | 3 | 165 | 1,137 | 463 | 264 | 115 | 51 | 36 | 20 | 2,250 |
North Carolina | 11 | 322 | 156 | 33 | 15 | 7 | 1 | 1 | 1 | 536 | 69 | 496 | 1,038 | 308 | 130 | 54 | 23 | 15 | 17 | 2,082 |
North Dakota | - | 220 | 235 | 42 | 11 | 2 | 1 | 0 | 0 | 511 | 0 | 1,005 | 1,240 | 380 | 147 | 76 | 38 | 23 | 41 | 2,950 |
Ohio | 0 | 245 | 322 | 55 | 15 | 4 | 2 | 0 | 0 | 643 | 1 | 442 | 941 | 279 | 103 | 46 | 9 | 4 | 3 | 1,827 |
Oklahoma | - | 263 | 278 | 72 | 17 | 7 | 7 | 1 | 0 | 646 | - | 292 | 1,020 | 418 | 331 | 95 | 38 | 19 | 31 | 2,244 |
Oregon | 2 | 225 | 192 | 54 | 14 | 4 | 3 | 1 | 1 | 493 | 14 | 500 | 1,343 | 439 | 192 | 91 | 41 | 20 | 17 | 2,644 |
Pennsylvania | 1 | 465 | 472 | 108 | 41 | 16 | 7 | 8 | 3 | 1,119 | 26 | 407 | 862 | 303 | 164 | 86 | 44 | 27 | 29 | 1,924 |
Rhode Island | - | 15 | 2 | 0 | 0 | 0 | - | - | 0 | 18 | 2 | 1 | 13 | 16 | 11 | 9 | 6 | 5 | 10 | 70 |
South Carolina | - | 214 | 265 | 52 | 12 | 3 | 0 | - | 0 | 546 | - | 108 | 832 | 382 | 186 | 58 | 9 | 15 | 3 | 1,592 |
South Dakota | - | 127 | 391 | 57 | 14 | 1 | 1 | - | 0 | 591 | 2 | 892 | 3,175 | 1,360 | 673 | 548 | 177 | 98 | 33 | 6,957 |
Tennessee | 1 | 535 | 62 | 10 | 8 | 3 | 1 | 1 | 1 | 621 | 8 | 857 | 629 | 151 | 70 | 27 | 13 | 7 | 5 | 1,761 |
Texas | - | 713 | 957 | 206 | 72 | 31 | 10 | 6 | 5 | 2,001 | 9 | 1,712 | 3,394 | 1,487 | 663 | 288 | 112 | 51 | 53 | 7,760 |
Utah | - | 335 | 317 | 31 | 1 | 0 | - | 0 | - | 684 | - | 119 | 539 | 344 | 115 | 41 | 11 | 5 | 0 | 1,174 |
Vermont | 2 | 186 | 58 | 7 | 5 | 1 | - | 0 | - | 257 | 1 | 71 | 144 | 45 | 21 | 11 | 5 | 5 | 6 | 308 |
Virginia | 1 | 171 | 325 | 101 | 38 | 10 | 2 | 1 | 1 | 649 | 23 | 246 | 1,010 | 366 | 152 | 55 | 22 | 11 | 8 | 1,871 |
Washington | - | 173 | 144 | 47 | 23 | 16 | 9 | 6 | 6 | 425 | - | 342 | 916 | 352 | 154 | 75 | 37 | 26 | 23 | 1,926 |
West Virginia | - | 40 | 259 | 37 | 30 | 3 | - | - | - | 368 | 2 | 28 | 453 | 295 | 162 | 90 | 20 | 12 | 15 | 1,075 |
Wisconsin | - | 154 | 156 | 63 | 44 | 27 | 11 | 8 | 2 | 464 | 0 | 593 | 825 | 935 | 342 | 225 | 107 | 70 | 110 | 3,207 |
Wyoming | 0 | 364 | 304 | 71 | 38 | 16 | 7 | 4 | 3 | 807 | 6 | 456 | 916 | 348 | 148 | 65 | 24 | 11 | 13 | 1,980 |
U.S. Total | 312 | 12,895 | 10,843 | 2,653 | 1,184 | 601 | 284 | 160 | 163 | 28,783 | 3,037 | 25,518 | 41,490 | 15,626 | 7,479 | 3,867 | 1,649 | 985 | 1,117 | 97,731 |
Puerto Rico (3) | - | - | 1 | 10 | 4 | 11 | 5 | 4 | 7 | 42 | - | - | 1 | 3 | 13 | 2 | - | - | - | 19 |
Grand Total | 312 | 12,895 | 10,844 | 2,663 | 1,188 | 611 | 289 | 164 | 170 | 28,825 | 3,037 | 25,518 | 41,491 | 15,629 | 7,492 | 3,869 | 1,649 | 985 | 1,117 | 97,750 |
October 2015
Table HM-47
Sheet 2 of 4
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 | 1 | 1,243 | 974 | 191 | 82 | 43 | 21 | 13 | 12 | 2,579 |
Alaska | 283 | 249 | 494 | 268 | 213 | 158 | 112 | 75 | 141 | 1,712 |
Arizona | 29 | 969 | 703 | 211 | 110 | 61 | 21 | 10 | 8 | 2,092 |
Arkansas | 93 | 467 | 1,009 | 398 | 218 | 115 | 50 | 22 | 14 | 2,292 |
California | 1,950 | 614 | 1,053 | 470 | 296 | 164 | 68 | 43 | 68 | 2,777 |
Colorado | - | 589 | 1,375 | 619 | 316 | 170 | 79 | 41 | 36 | 3,225 |
Connecticut | - | 22 | 73 | 43 | 20 | 10 | 4 | 3 | 4 | 178 |
Delaware | - | 39 | 90 | 20 | 3 | 2 | 1 | 0 | 0 | 154 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - |
Florida | 147 | 1,395 | 1,507 | 272 | 79 | 31 | 8 | 4 | 4 | 3,300 |
Georgia | 45 | 1,131 | 1,791 | 443 | 150 | 63 | 22 | 12 | 14 | 3,626 |
Hawaii | 0 | 1 | 19 | 17 | 16 | 11 | 6 | 4 | 5 | 80 |
Idaho | 16 | 765 | 1,013 | 284 | 105 | 47 | 21 | 14 | 9 | 2,258 |
Illinois | - | 1,003 | 1,623 | 511 | 266 | 111 | 29 | 10 | 8 | 3,560 |
Indiana | 104 | 1,089 | 759 | 216 | 108 | 54 | 30 | 16 | 28 | 2,299 |
Iowa | 159 | 1,092 | 1,188 | 531 | 337 | 227 | 141 | 98 | 170 | 3,785 |
Kansas | 17 | 2,171 | 1,145 | 222 | 80 | 40 | 16 | 7 | 5 | 3,686 |
Kentucky | 34 | 1,236 | 782 | 182 | 67 | 30 | 11 | 6 | 6 | 2,319 |
Louisiana | 34 | 434 | 552 | 238 | 154 | 96 | 44 | 25 | 25 | 1,568 |
Maine | - | 236 | 413 | 242 | 108 | 65 | 27 | 1 | 1 | 1,093 |
Maryland | 16 | 210 | 204 | 36 | 18 | 9 | 5 | 3 | 4 | 490 |
Massachusetts | 185 | - | - | - | - | - | - | - | - | - |
Michigan | 4 | 1,406 | 1,088 | 278 | 128 | 73 | 38 | 17 | 25 | 3,052 |
Minnesota | 17 | 1,267 | 1,525 | 595 | 304 | 176 | 81 | 43 | 52 | 4,044 |
Mississippi | - | 883 | 896 | 271 | 153 | 80 | 35 | 19 | 18 | 2,354 |
Missouri | 15 | 1,524 | 1,546 | 404 | 166 | 87 | 44 | 22 | 16 | 3,810 |
Montana | - | 1,115 | 1,898 | 466 | 193 | 92 | 41 | 25 | 37 | 3,867 |
Nebraska | 7 | 1,280 | 1,042 | 432 | 240 | 90 | 33 | 47 | 14 | 3,177 |
Nevada | 5 | 603 | 773 | 315 | 112 | 53 | 39 | 35 | 53 | 1,983 |
New Hampshire | 1 | 255 | 155 | 45 | 25 | 17 | 12 | 8 | 12 | 529 |
New Jersey | 0 | 52 | 69 | 38 | 32 | 20 | 12 | 6 | 10 | 238 |
New Mexico | 3 | 1,378 | 810 | 214 | 102 | 50 | 24 | 13 | 10 | 2,602 |
New York | 3 | 363 | 1,576 | 555 | 297 | 130 | 59 | 42 | 31 | 3,053 |
North Carolina | 80 | 818 | 1,194 | 341 | 145 | 61 | 25 | 16 | 17 | 2,618 |
North Dakota | 0 | 1,225 | 1,475 | 422 | 158 | 78 | 38 | 23 | 41 | 3,461 |
Ohio | 2 | 687 | 1,263 | 333 | 118 | 50 | 11 | 4 | 3 | 2,470 |
Oklahoma | - | 555 | 1,298 | 490 | 348 | 102 | 46 | 20 | 31 | 2,891 |
Oregon | 16 | 725 | 1,535 | 493 | 206 | 95 | 44 | 21 | 17 | 3,137 |
Pennsylvania | 28 | 872 | 1,335 | 411 | 205 | 103 | 51 | 34 | 32 | 3,043 |
Rhode Island | 2 | 15 | 15 | 16 | 11 | 9 | 6 | 5 | 10 | 88 |
South Carolina | - | 322 | 1,097 | 434 | 198 | 60 | 9 | 15 | 3 | 2,138 |
South Dakota | 2 | 1,019 | 3,566 | 1,418 | 688 | 549 | 178 | 98 | 33 | 7,548 |
Tennessee | 8 | 1,391 | 691 | 161 | 78 | 30 | 15 | 9 | 6 | 2,381 |
Texas | 9 | 2,426 | 4,351 | 1,693 | 735 | 320 | 122 | 57 | 58 | 9,761 |
Utah | - | 454 | 855 | 375 | 116 | 41 | 11 | 5 | 0 | 1,858 |
Vermont | 2 | 257 | 202 | 52 | 26 | 12 | 5 | 5 | 6 | 564 |
Virginia | 24 | 417 | 1,335 | 467 | 191 | 65 | 25 | 12 | 9 | 2,521 |
Washington | - | 515 | 1,061 | 399 | 177 | 91 | 47 | 32 | 30 | 2,351 |
West Virginia | 2 | 68 | 712 | 332 | 192 | 93 | 20 | 12 | 15 | 1,443 |
Wisconsin | 0 | 747 | 981 | 998 | 386 | 252 | 118 | 78 | 112 | 3,671 |
Wyoming | 6 | 820 | 1,221 | 419 | 186 | 81 | 30 | 15 | 16 | 2,788 |
U.S. Total | 3,349 | 38,414 | 52,333 | 18,279 | 8,663 | 4,467 | 1,933 | 1,145 | 1,280 | 126,514 |
Puerto Rico (3) | - | - | 3 | 13 | 17 | 13 | 5 | 4 | 7 | 61 |
Grand Total | 3,349 | 38,414 | 52,335 | 18,292 | 8,680 | 4,480 | 1,938 | 1,148 | 1,287 | 126,575 |
October 2015
Table HM-47
Sheet 3 of 4
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 | 2 | 189 | 126 | 41 | 30 | 18 | 10 | 7 | 7 | 428 | 32 | 423 | 461 | 137 | 75 | 48 | 34 | 24 | 35 | 1,237 |
Alaska | 2 | 19 | 37 | 10 | 5 | 3 | 1 | 1 | 1 | 77 | 3 | 9 | 45 | 28 | 19 | 16 | 11 | 7 | 19 | 154 |
Arizona | 0 | 142 | 70 | 18 | 10 | 4 | 2 | 0 | 0 | 247 | 170 | 184 | 216 | 93 | 61 | 31 | 17 | 12 | 33 | 647 |
Arkansas | 6 | 74 | 107 | 40 | 23 | 19 | 10 | 7 | 8 | 288 | 65 | 61 | 218 | 125 | 74 | 55 | 31 | 23 | 37 | 623 |
California | 88 | 107 | 398 | 207 | 154 | 109 | 64 | 51 | 66 | 1,156 | 2,068 | 150 | 662 | 657 | 769 | 861 | 682 | 689 | 1,263 | 5,733 |
Colorado | - | 45 | 134 | 56 | 36 | 15 | 7 | 5 | 4 | 304 | 1 | 81 | 318 | 229 | 226 | 178 | 117 | 80 | 151 | 1,379 |
Connecticut | - | 104 | 123 | 43 | 23 | 12 | 6 | 3 | 4 | 317 | 0 | 63 | 205 | 169 | 152 | 121 | 75 | 56 | 106 | 946 |
Delaware | - | 3 | 19 | 9 | 4 | 2 | 2 | 1 | 1 | 41 | 0 | 14 | 106 | 45 | 21 | 13 | 9 | 7 | 14 | 227 |
Dist. of Columbia | - | - | 0 | 0 | 5 | 3 | 1 | 2 | 1 | 12 | 0 | - | - | 3 | 3 | 3 | 7 | 7 | 99 | 122 |
Florida | 72 | 357 | 263 | 44 | 24 | 10 | 5 | 2 | 1 | 706 | 179 | 1,006 | 1,913 | 637 | 332 | 182 | 86 | 56 | 98 | 4,309 |
Georgia | 0 | 332 | 229 | 72 | 36 | 19 | 11 | 6 | 4 | 711 | 234 | 558 | 1,092 | 374 | 202 | 118 | 69 | 48 | 109 | 2,569 |
Hawaii | - | 1 | 14 | 9 | 11 | 8 | 6 | 3 | 3 | 55 | 2 | 24 | 49 | 48 | 47 | 45 | 30 | 23 | 45 | 311 |
Idaho | - | 38 | 34 | 9 | 5 | 2 | 1 | 1 | 0 | 90 | 25 | 51 | 119 | 59 | 39 | 27 | 19 | 14 | 34 | 363 |
Illinois | - | 243 | 476 | 114 | 82 | 17 | 6 | 1 | 2 | 942 | - | 194 | 742 | 669 | 600 | 422 | 255 | 184 | 327 | 3,392 |
Indiana | 74 | 155 | 114 | 51 | 32 | 19 | 12 | 10 | 6 | 399 | 19 | 334 | 528 | 277 | 212 | 168 | 113 | 83 | 192 | 1,907 |
Iowa | 6 | 62 | 63 | 21 | 10 | 6 | 4 | 2 | 6 | 173 | 64 | 91 | 216 | 143 | 101 | 78 | 50 | 38 | 111 | 828 |
Kansas | 2 | 98 | 59 | 32 | 20 | 10 | 4 | 2 | 1 | 226 | 56 | 140 | 161 | 50 | 65 | 41 | 32 | 33 | 19 | 540 |
Kentucky | 8 | 119 | 62 | 12 | 5 | 2 | 1 | 1 | 0 | 203 | 40 | 186 | 233 | 97 | 61 | 39 | 25 | 16 | 30 | 686 |
Louisiana | 1 | 101 | 87 | 51 | 46 | 41 | 23 | 12 | 11 | 371 | 140 | 102 | 242 | 162 | 148 | 132 | 92 | 84 | 182 | 1,143 |
Maine | - | 22 | 23 | 16 | 2 | 4 | - | - | - | 67 | - | 1 | 46 | 44 | 31 | 22 | 5 | 8 | 10 | 167 |
Maryland | 3 | 116 | 135 | 31 | 16 | 13 | 7 | 6 | 10 | 336 | 80 | 236 | 437 | 198 | 148 | 111 | 75 | 56 | 161 | 1,421 |
Massachusetts | 509 | - | - | - | - | - | - | - | - | - | 2,271 | - | - | - | - | - | - | - | - | - |
Michigan | 0 | 167 | 259 | 106 | 57 | 37 | 27 | 17 | 15 | 685 | 1 | 238 | 612 | 429 | 350 | 278 | 208 | 175 | 443 | 2,733 |
Minnesota | - | 74 | 136 | 50 | 26 | 15 | 9 | 5 | 5 | 320 | 28 | 198 | 327 | 138 | 95 | 63 | 36 | 25 | 55 | 937 |
Mississippi | - | 107 | 66 | 21 | 13 | 9 | 5 | 3 | 2 | 226 | 0 | 148 | 321 | 160 | 114 | 82 | 52 | 42 | 123 | 1,043 |
Missouri | 1 | 266 | 171 | 44 | 24 | 16 | 8 | 4 | 4 | 537 | 261 | 245 | 437 | 181 | 116 | 70 | 41 | 27 | 37 | 1,155 |
Montana | - | 46 | 38 | 6 | 3 | 2 | 1 | 0 | 1 | 98 | 6 | 24 | 64 | 38 | 27 | 17 | 11 | 7 | 22 | 211 |
Nebraska | - | 5 | 27 | 26 | 4 | 4 | 1 | - | - | 66 | 4 | 18 | 62 | 39 | 53 | 82 | 92 | 57 | 68 | 471 |
Nevada | 8 | 49 | 49 | 19 | 12 | 8 | 2 | 1 | 1 | 141 | 24 | 128 | 130 | 56 | 36 | 19 | 9 | 6 | 11 | 393 |
New Hampshire | - | 62 | 16 | 2 | 1 | 1 | 0 | 0 | - | 83 | 1 | 93 | 93 | 41 | 23 | 16 | 12 | 10 | 30 | 318 |
New Jersey | 3 | 132 | 125 | 48 | 27 | 15 | 11 | 9 | 17 | 384 | 10 | 214 | 478 | 306 | 276 | 249 | 188 | 151 | 474 | 2,336 |
New Mexico | - | 102 | 29 | 8 | 7 | 4 | 1 | 1 | 1 | 153 | 5 | 90 | 159 | 91 | 76 | 64 | 41 | 32 | 60 | 614 |
New York | 2 | 115 | 451 | 143 | 72 | 46 | 33 | 22 | 50 | 932 | 40 | 74 | 799 | 686 | 517 | 378 | 293 | 212 | 1,004 | 3,961 |
North Carolina | 36 | 268 | 262 | 78 | 37 | 17 | 6 | 4 | 2 | 674 | 107 | 248 | 896 | 464 | 294 | 165 | 89 | 60 | 119 | 2,335 |
North Dakota | - | 22 | 32 | 4 | 1 | 0 | - | 0 | 0 | 60 | - | 19 | 47 | 34 | 27 | 15 | 15 | 9 | 20 | 186 |
Ohio | - | 267 | 441 | 143 | 51 | 16 | 8 | 2 | 2 | 931 | 7 | 250 | 877 | 553 | 440 | 313 | 223 | 158 | 386 | 3,200 |
Oklahoma | - | 48 | 135 | 54 | 21 | 15 | 4 | 6 | 4 | 286 | 48 | 53 | 254 | 191 | 146 | 130 | 100 | 87 | 155 | 1,117 |
Oregon | 4 | 71 | 104 | 27 | 12 | 10 | 4 | 2 | 1 | 231 | 60 | 108 | 263 | 154 | 103 | 75 | 51 | 34 | 73 | 860 |
Pennsylvania | 8 | 221 | 314 | 88 | 54 | 28 | 18 | 10 | 6 | 739 | 171 | 200 | 765 | 579 | 483 | 360 | 251 | 195 | 395 | 3,229 |
Rhode Island | 0 | 24 | 19 | 5 | 2 | 1 | 0 | 0 | 0 | 52 | 59 | 15 | 49 | 45 | 47 | 49 | 38 | 32 | 86 | 361 |
South Carolina | - | 81 | 148 | 45 | 22 | 6 | 2 | 0 | 0 | 304 | 1 | 46 | 391 | 332 | 204 | 110 | 39 | 17 | 21 | 1,160 |
South Dakota | 0 | 5 | 51 | 23 | 7 | 1 | - | - | - | 88 | 3 | 6 | 52 | 39 | 31 | 38 | 15 | 6 | 8 | 193 |
Tennessee | 2 | 326 | 92 | 30 | 15 | 8 | 4 | 3 | 3 | 481 | 41 | 563 | 603 | 234 | 138 | 99 | 63 | 43 | 90 | 1,832 |
Texas | 13 | 314 | 568 | 227 | 139 | 89 | 35 | 19 | 11 | 1,403 | 73 | 641 | 2,088 | 1,235 | 884 | 644 | 408 | 325 | 991 | 7,216 |
Utah | - | 78 | 113 | 42 | 16 | 4 | 0 | 0 | - | 253 | - | 78 | 276 | 154 | 93 | 53 | 18 | 5 | 5 | 682 |
Vermont | 2 | 36 | 19 | 3 | 2 | 1 | 0 | - | - | 60 | 7 | 12 | 34 | 20 | 15 | 9 | 6 | 4 | 9 | 110 |
Virginia | 14 | 80 | 209 | 77 | 40 | 25 | 11 | 9 | 5 | 455 | 127 | 68 | 392 | 234 | 188 | 146 | 88 | 64 | 79 | 1,259 |
Washington | - | 121 | 124 | 41 | 23 | 11 | 7 | 5 | 5 | 338 | 0 | 154 | 390 | 267 | 224 | 181 | 148 | 134 | 376 | 1,875 |
West Virginia | - | 17 | 129 | 24 | 10 | 2 | 3 | 2 | 0 | 187 | 6 | 4 | 115 | 82 | 59 | 34 | 17 | 17 | 20 | 349 |
Wisconsin | 1 | 82 | 91 | 40 | 39 | 11 | 7 | 5 | 3 | 278 | 2 | 114 | 331 | 308 | 359 | 550 | 152 | 162 | 334 | 2,310 |
Wyoming | - | 25 | 44 | 19 | 8 | 4 | 3 | 2 | 2 | 107 | 2 | 27 | 71 | 42 | 27 | 18 | 11 | 10 | 22 | 229 |
U.S. Total | 868 | 5,538 | 6,836 | 2,330 | 1,326 | 740 | 397 | 255 | 277 | 17,699 | 6,543 | 7,983 | 19,386 | 11,373 | 8,830 | 7,018 | 4,551 | 3,654 | 8,587 | 71,383 |
Puerto Rico (3) | 2 | - | 30 | 74 | 47 | 44 | 28 | 8 | 6 | 238 | 2 | - | 2 | 7 | 11 | 33 | 21 | 11 | 25 | 109 |
Grand Total | 869 | 5,538 | 6,866 | 2,404 | 1,373 | 784 | 425 | 262 | 283 | 17,937 | 6,545 | 7,983 | 19,388 | 11,380 | 8,840 | 7,051 | 4,572 | 3,665 | 8,612 | 71,492 |
October 2015
Table HM-47
Sheet 4 of 4
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 | 34 | 612 | 587 | 178 | 105 | 66 | 44 | 30 | 42 | 1,665 |
Alaska | 6 | 27 | 83 | 38 | 24 | 18 | 13 | 8 | 20 | 231 |
Arizona | 170 | 325 | 286 | 111 | 71 | 35 | 20 | 12 | 33 | 894 |
Arkansas | 70 | 135 | 326 | 165 | 97 | 73 | 41 | 29 | 45 | 910 |
California | 2,157 | 257 | 1,060 | 863 | 923 | 970 | 746 | 741 | 1,330 | 6,889 |
Colorado | 1 | 126 | 452 | 285 | 262 | 193 | 124 | 85 | 156 | 1,682 |
Connecticut | 0 | 167 | 327 | 212 | 175 | 133 | 81 | 58 | 110 | 1,264 |
Delaware | 0 | 17 | 125 | 54 | 25 | 14 | 11 | 8 | 15 | 268 |
Dist. of Columbia | 0 | - | 0 | 4 | 7 | 6 | 8 | 9 | 100 | 134 |
Florida | 251 | 1,364 | 2,176 | 681 | 355 | 192 | 91 | 58 | 98 | 5,015 |
Georgia | 234 | 890 | 1,322 | 447 | 238 | 137 | 80 | 54 | 113 | 3,281 |
Hawaii | 2 | 25 | 63 | 57 | 58 | 53 | 36 | 26 | 48 | 366 |
Idaho | 25 | 89 | 153 | 68 | 44 | 30 | 20 | 15 | 35 | 453 |
Illinois | - | 437 | 1,219 | 783 | 682 | 439 | 260 | 185 | 329 | 4,334 |
Indiana | 94 | 489 | 643 | 328 | 244 | 186 | 125 | 93 | 198 | 2,306 |
Iowa | 69 | 152 | 279 | 164 | 112 | 84 | 54 | 41 | 116 | 1,002 |
Kansas | 57 | 237 | 220 | 81 | 86 | 50 | 37 | 35 | 20 | 766 |
Kentucky | 48 | 305 | 295 | 109 | 66 | 41 | 26 | 17 | 30 | 889 |
Louisiana | 141 | 203 | 329 | 213 | 195 | 173 | 114 | 95 | 193 | 1,514 |
Maine | - | 23 | 69 | 60 | 33 | 26 | 5 | 8 | 10 | 234 |
Maryland | 83 | 352 | 572 | 229 | 164 | 124 | 82 | 62 | 171 | 1,757 |
Massachusetts | 2,780 | - | - | - | - | - | - | - | - | - |
Michigan | 2 | 405 | 871 | 534 | 407 | 315 | 235 | 191 | 459 | 3,418 |
Minnesota | 28 | 272 | 463 | 188 | 121 | 78 | 45 | 30 | 61 | 1,258 |
Mississippi | 0 | 255 | 388 | 181 | 128 | 91 | 57 | 45 | 125 | 1,269 |
Missouri | 262 | 510 | 608 | 225 | 139 | 86 | 50 | 31 | 41 | 1,692 |
Montana | 6 | 70 | 103 | 44 | 30 | 20 | 12 | 8 | 23 | 309 |
Nebraska | 4 | 23 | 89 | 64 | 57 | 86 | 93 | 57 | 68 | 537 |
Nevada | 33 | 177 | 178 | 75 | 48 | 27 | 12 | 7 | 12 | 535 |
New Hampshire | 1 | 156 | 109 | 43 | 24 | 17 | 13 | 10 | 30 | 401 |
New Jersey | 13 | 346 | 603 | 354 | 303 | 264 | 199 | 160 | 490 | 2,719 |
New Mexico | 5 | 193 | 188 | 100 | 84 | 68 | 43 | 33 | 61 | 768 |
New York | 43 | 189 | 1,250 | 829 | 589 | 423 | 326 | 234 | 1,054 | 4,893 |
North Carolina | 143 | 516 | 1,158 | 542 | 332 | 182 | 95 | 64 | 121 | 3,010 |
North Dakota | - | 41 | 80 | 38 | 28 | 15 | 15 | 10 | 20 | 246 |
Ohio | 7 | 517 | 1,318 | 696 | 491 | 329 | 232 | 160 | 387 | 4,131 |
Oklahoma | 48 | 102 | 389 | 245 | 168 | 145 | 104 | 93 | 159 | 1,403 |
Oregon | 64 | 179 | 366 | 180 | 115 | 84 | 55 | 36 | 74 | 1,091 |
Pennsylvania | 179 | 421 | 1,079 | 667 | 537 | 388 | 270 | 205 | 401 | 3,968 |
Rhode Island | 59 | 39 | 68 | 50 | 49 | 51 | 38 | 32 | 86 | 413 |
South Carolina | 1 | 127 | 539 | 378 | 226 | 115 | 41 | 18 | 21 | 1,464 |
South Dakota | 3 | 11 | 103 | 62 | 37 | 39 | 15 | 6 | 8 | 281 |
Tennessee | 42 | 889 | 695 | 264 | 153 | 108 | 67 | 46 | 92 | 2,314 |
Texas | 86 | 955 | 2,657 | 1,462 | 1,024 | 733 | 443 | 343 | 1,002 | 8,619 |
Utah | - | 156 | 389 | 195 | 109 | 57 | 18 | 5 | 5 | 935 |
Vermont | 9 | 48 | 52 | 23 | 17 | 10 | 7 | 4 | 9 | 170 |
Virginia | 141 | 148 | 601 | 310 | 228 | 171 | 99 | 73 | 84 | 1,714 |
Washington | 0 | 275 | 514 | 309 | 247 | 192 | 156 | 139 | 381 | 2,214 |
West Virginia | 6 | 20 | 244 | 105 | 69 | 37 | 20 | 19 | 21 | 535 |
Wisconsin | 3 | 196 | 422 | 348 | 398 | 562 | 159 | 168 | 337 | 2,588 |
Wyoming | 2 | 52 | 115 | 61 | 35 | 22 | 14 | 12 | 24 | 336 |
U.S. Total | 7,411 | 13,522 | 26,223 | 13,703 | 10,155 | 7,758 | 4,948 | 3,909 | 8,864 | 89,082 |
Puerto Rico (3) | 4 | - | 32 | 82 | 58 | 77 | 49 | 19 | 31 | 347 |
Grand Total | 7,414 | 13,522 | 26,255 | 13,785 | 10,213 | 7,835 | 4,997 | 3,928 | 8,895 | 89,429 |
(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.
(3) 2009 data.