U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
August 30, 2019
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 | 3 | 409 | 104 | 22 | 16 | 9 | 3 | 2 | 2 | 567 | 3 | 968 | 793 | 131 | 50 | 27 | 12 | 8 | 11 | 1,999 |
Alaska | - | 204 | 330 | 152 | 113 | 86 | 49 | 30 | 38 | 1,002 | 323 | 83 | 148 | 69 | 67 | 68 | 53 | 49 | 128 | 664 |
Arizona | 2 | 538 | 223 | 78 | 38 | 16 | 11 | 5 | 5 | 915 | 36 | 388 | 396 | 167 | 105 | 59 | 28 | 15 | 12 | 1,171 |
Arkansas | - | 235 | 139 | 33 | 15 | 9 | 3 | 3 | 3 | 439 | 0 | 356 | 850 | 338 | 194 | 105 | 48 | 26 | 20 | 1,938 |
California | 9 | 520 | 369 | 144 | 76 | 33 | 16 | 8 | 11 | 1,177 | 19 | 951 | 1,527 | 521 | 263 | 141 | 68 | 39 | 51 | 3,562 |
Colorado | - | 135 | 288 | 117 | 39 | 25 | 23 | 15 | 6 | 648 | - | 604 | 1,133 | 441 | 203 | 102 | 49 | 26 | 17 | 2,576 |
Connecticut | - | 17 | 6 | 3 | 1 | 1 | 0 | 0 | 0 | 29 | - | 25 | 65 | 31 | 19 | 9 | 5 | 3 | 2 | 158 |
Delaware | - | - | - | - | - | - | - | - | - | - | 2 | 27 | 70 | 18 | 6 | 2 | 1 | 1 | 0 | 125 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Florida | 0 | 601 | 97 | 7 | 6 | 3 | 2 | 1 | 1 | 717 | 1 | 1,090 | 1,264 | 269 | 83 | 33 | 9 | 5 | 4 | 2,758 |
Georgia | - | 215 | 224 | 57 | 23 | 9 | 6 | 2 | 2 | 537 | - | 970 | 1,443 | 409 | 146 | 58 | 22 | 10 | 12 | 3,070 |
Hawaii | - | - | - | - | - | - | - | - | - | - | - | 1 | 20 | 17 | 12 | 12 | 7 | 4 | 5 | 80 |
Idaho | 1 | 309 | 152 | 32 | 16 | 7 | 3 | 1 | 2 | 522 | 151 | 468 | 711 | 219 | 91 | 39 | 15 | 10 | 5 | 1,557 |
Illinois | - | 741 | 365 | 76 | 31 | 17 | 6 | 4 | 4 | 1,243 | 7 | 382 | 986 | 457 | 260 | 156 | 77 | 43 | 41 | 2,402 |
Indiana | 13 | 433 | 189 | 65 | 31 | 19 | 13 | 9 | 12 | 771 | 5 | 648 | 589 | 226 | 129 | 65 | 32 | 29 | 14 | 1,731 |
Iowa | 26 | 288 | 205 | 57 | 22 | 7 | 3 | 2 | 2 | 585 | 30 | 914 | 1,128 | 553 | 347 | 194 | 103 | 68 | 80 | 3,388 |
Kansas | - | 391 | 179 | 44 | 16 | 6 | 2 | 1 | 0 | 639 | - | 1,696 | 985 | 196 | 79 | 41 | 19 | 9 | 7 | 3,031 |
Kentucky | 2 | 504 | 137 | 32 | 19 | 10 | 4 | 1 | 2 | 709 | 5 | 760 | 607 | 147 | 58 | 29 | 12 | 5 | 6 | 1,624 |
Louisiana | 7 | 193 | 134 | 87 | 65 | 29 | 11 | 4 | 2 | 526 | 19 | 144 | 469 | 214 | 113 | 76 | 45 | 24 | 41 | 1,124 |
Maine | - | 154 | 76 | 26 | 13 | 6 | 2 | 1 | 1 | 279 | 1 | 223 | 294 | 104 | 58 | 35 | 23 | 19 | 45 | 800 |
Maryland | - | 66 | 57 | 11 | 5 | 1 | 0 | 0 | 1 | 142 | 0 | 172 | 148 | 28 | 11 | 7 | 4 | 4 | 3 | 377 |
Massachusetts | - | 34 | 22 | 4 | 2 | 1 | 0 | 1 | 0 | 64 | 0 | 66 | 186 | 78 | 42 | 25 | 13 | 7 | 14 | 431 |
Michigan | 4 | 182 | 238 | 67 | 34 | 20 | 9 | 6 | 3 | 558 | 0 | 1,053 | 921 | 262 | 128 | 62 | 26 | 14 | 16 | 2,483 |
Minnesota | 0 | 192 | 295 | 50 | 29 | 11 | 5 | 3 | 3 | 588 | 1 | 1,265 | 1,149 | 483 | 286 | 155 | 73 | 41 | 37 | 3,488 |
Mississippi | - | 387 | 115 | 31 | 22 | 13 | 6 | 2 | 2 | 578 | - | 485 | 735 | 255 | 160 | 93 | 44 | 20 | 20 | 1,812 |
Missouri | - | 585 | 200 | 31 | 14 | 7 | 3 | 1 | 1 | 842 | 1 | 1,223 | 1,252 | 308 | 116 | 50 | 20 | 10 | 9 | 2,989 |
Montana | - | 573 | 397 | 68 | 29 | 14 | 5 | 3 | 4 | 1,094 | - | 636 | 1,318 | 425 | 190 | 93 | 44 | 23 | 45 | 2,773 |
Nebraska | 3 | 213 | 145 | 25 | 15 | 9 | 3 | 1 | 1 | 412 | 230 | 1,010 | 829 | 281 | 152 | 83 | 40 | 25 | 34 | 2,453 |
Nevada | 7 | 400 | 28 | 10 | 3 | 3 | 3 | 1 | 1 | 450 | - | 993 | 434 | 81 | 25 | 6 | 3 | 1 | 1 | 1,544 |
New Hampshire | - | 112 | 24 | 4 | 2 | 1 | - | - | - | 142 | - | 174 | 131 | 36 | 20 | 11 | 6 | 4 | 6 | 387 |
New Jersey | - | 17 | 23 | 3 | 1 | 0 | 0 | 1 | - | 45 | - | 46 | 62 | 24 | 22 | 18 | 8 | 6 | 8 | 195 |
New Mexico | - | 561 | 176 | 55 | 27 | 14 | 5 | 2 | 3 | 843 | - | 661 | 647 | 212 | 107 | 57 | 29 | 16 | 20 | 1,750 |
New York | 11 | 316 | 305 | 85 | 44 | 19 | 8 | 6 | 8 | 793 | 41 | 315 | 1,097 | 387 | 199 | 113 | 64 | 34 | 41 | 2,250 |
North Carolina | 1 | 386 | 123 | 23 | 15 | 7 | 4 | 2 | 0 | 560 | 7 | 613 | 1,045 | 319 | 122 | 55 | 24 | 13 | 16 | 2,207 |
North Dakota | - | 253 | 204 | 37 | 10 | 3 | 1 | 1 | 0 | 510 | - | 1,234 | 1,138 | 312 | 133 | 63 | 25 | 15 | 24 | 2,944 |
Ohio | - | 346 | 196 | 56 | 23 | 12 | 5 | 2 | 3 | 643 | - | 648 | 803 | 224 | 99 | 46 | 19 | 10 | 12 | 1,861 |
Oklahoma | 1 | 286 | 261 | 49 | 24 | 13 | 6 | 5 | 3 | 645 | 92 | 384 | 952 | 393 | 209 | 120 | 69 | 40 | 47 | 2,215 |
Oregon | - | 280 | 158 | 37 | 13 | 4 | 1 | 1 | 1 | 495 | - | 669 | 1,323 | 377 | 158 | 72 | 28 | 16 | 13 | 2,657 |
Pennsylvania | - | 519 | 365 | 89 | 56 | 20 | 9 | 8 | 9 | 1,074 | - | 412 | 872 | 282 | 133 | 70 | 39 | 23 | 31 | 1,862 |
Rhode Island | - | 15 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 1 | 8 | 13 | 15 | 20 | 17 | 13 | 8 | 13 | 107 |
South Carolina | - | 360 | 132 | 30 | 14 | 6 | 2 | 1 | 1 | 546 | - | 213 | 728 | 312 | 171 | 85 | 41 | 21 | 19 | 1,590 |
South Dakota | - | 219 | 313 | 36 | 13 | 6 | 3 | 1 | - | 591 | 22 | 509 | 1,219 | 559 | 292 | 145 | 73 | 43 | 29 | 2,869 |
Tennessee | 0 | 519 | 92 | 14 | 10 | 5 | 2 | 2 | 0 | 644 | 37 | 680 | 698 | 173 | 82 | 43 | 18 | 10 | 6 | 1,710 |
Texas | 1 | 894 | 821 | 181 | 62 | 27 | 8 | 4 | 3 | 2,000 | 42 | 2,266 | 3,227 | 1,231 | 529 | 224 | 83 | 37 | 31 | 7,626 |
Utah | - | 378 | 236 | 52 | 11 | 5 | 2 | 1 | 1 | 684 | 5 | 206 | 518 | 243 | 121 | 54 | 19 | 9 | 7 | 1,178 |
Vermont | 1 | 176 | 60 | 11 | 6 | 2 | 1 | 0 | 0 | 255 | 1 | 92 | 126 | 35 | 17 | 12 | 8 | 6 | 9 | 306 |
Virginia | - | 272 | 268 | 40 | 11 | 6 | 1 | 0 | 0 | 598 | 9 | 276 | 895 | 334 | 143 | 59 | 24 | 11 | 5 | 1,747 |
Washington | - | 170 | 145 | 41 | 28 | 18 | 10 | 8 | 9 | 429 | - | 333 | 928 | 351 | 147 | 71 | 38 | 25 | 32 | 1,925 |
West Virginia | 0 | 159 | 111 | 24 | 12 | 6 | 4 | 1 | 2 | 319 | 23 | 133 | 391 | 214 | 118 | 67 | 32 | 21 | 20 | 994 |
Wisconsin | - | 247 | 136 | 46 | 42 | 23 | 8 | 6 | 4 | 512 | 2 | 946 | 981 | 534 | 313 | 180 | 90 | 56 | 58 | 3,158 |
Wyoming | - | 483 | 211 | 62 | 28 | 14 | 5 | 2 | 3 | 807 | 6 | 634 | 876 | 257 | 112 | 41 | 15 | 8 | 16 | 1,960 |
U.S. Total | 92 | 15,486 | 9,074 | 2,302 | 1,143 | 585 | 279 | 160 | 158 | 29,188 | 1,122 | 29,050 | 39,120 | 13,551 | 6,659 | 3,449 | 1,659 | 969 | 1,147 | 95,605 |
Puerto Rico | 0 | 1 | 7 | 6 | 3 | 4 | 4 | 5 | 14 | 44 | 0 | 0 | 4 | 5 | 4 | 6 | 5 | 6 | 12 | 43 |
Grand Total | 92 | 15,486 | 9,081 | 2,308 | 1,147 | 589 | 283 | 165 | 172 | 29,232 | 1,122 | 29,050 | 39,124 | 13,556 | 6,664 | 3,456 | 1,664 | 975 | 1,159 | 95,647 |
August 30, 2019
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 | 6 | 1,377 | 896 | 153 | 66 | 35 | 16 | 10 | 12 | 2,566 |
Alaska | 323 | 287 | 478 | 221 | 179 | 154 | 102 | 79 | 166 | 1,666 |
Arizona | 38 | 926 | 619 | 245 | 143 | 75 | 39 | 20 | 17 | 2,086 |
Arkansas | 0 | 591 | 989 | 371 | 209 | 114 | 51 | 29 | 23 | 2,377 |
California | 28 | 1,471 | 1,897 | 664 | 339 | 175 | 84 | 47 | 62 | 4,739 |
Colorado | - | 739 | 1,422 | 558 | 242 | 127 | 72 | 41 | 23 | 3,224 |
Connecticut | - | 42 | 71 | 34 | 21 | 10 | 5 | 3 | 2 | 186 |
Delaware | 2 | 27 | 70 | 18 | 6 | 2 | 1 | 1 | 0 | 125 |
Dist. of Columbia | - | - | - | - | - | - | - | - | - | - |
Florida | 1 | 1,691 | 1,361 | 275 | 89 | 35 | 11 | 6 | 6 | 3,475 |
Georgia | - | 1,184 | 1,666 | 466 | 169 | 67 | 27 | 12 | 14 | 3,608 |
Hawaii | - | 1 | 20 | 17 | 12 | 12 | 7 | 4 | 5 | 80 |
Idaho | 152 | 777 | 863 | 251 | 107 | 46 | 17 | 11 | 7 | 2,079 |
Illinois | 7 | 1,122 | 1,351 | 533 | 291 | 173 | 83 | 46 | 44 | 3,645 |
Indiana | 18 | 1,081 | 779 | 291 | 160 | 84 | 44 | 38 | 26 | 2,502 |
Iowa | 57 | 1,202 | 1,333 | 610 | 369 | 201 | 105 | 70 | 82 | 3,973 |
Kansas | - | 2,087 | 1,164 | 239 | 95 | 47 | 21 | 10 | 8 | 3,671 |
Kentucky | 8 | 1,263 | 744 | 180 | 76 | 39 | 15 | 7 | 8 | 2,333 |
Louisiana | 26 | 337 | 603 | 301 | 178 | 105 | 56 | 28 | 43 | 1,650 |
Maine | 1 | 378 | 370 | 130 | 72 | 41 | 24 | 20 | 46 | 1,080 |
Maryland | 0 | 238 | 204 | 39 | 16 | 9 | 4 | 4 | 4 | 519 |
Massachusetts | 0 | 100 | 208 | 83 | 44 | 26 | 14 | 7 | 14 | 495 |
Michigan | 4 | 1,235 | 1,159 | 328 | 162 | 82 | 36 | 20 | 20 | 3,041 |
Minnesota | 1 | 1,457 | 1,444 | 533 | 315 | 166 | 77 | 44 | 40 | 4,076 |
Mississippi | - | 872 | 850 | 286 | 181 | 107 | 50 | 23 | 22 | 2,391 |
Missouri | 1 | 1,807 | 1,452 | 338 | 130 | 57 | 24 | 11 | 10 | 3,830 |
Montana | - | 1,209 | 1,715 | 492 | 219 | 107 | 49 | 26 | 49 | 3,867 |
Nebraska | 233 | 1,222 | 974 | 307 | 167 | 92 | 43 | 25 | 35 | 2,865 |
Nevada | 7 | 1,393 | 462 | 91 | 28 | 10 | 7 | 2 | 1 | 1,994 |
New Hampshire | - | 286 | 155 | 40 | 21 | 11 | 6 | 4 | 6 | 529 |
New Jersey | - | 63 | 85 | 28 | 23 | 19 | 9 | 6 | 8 | 240 |
New Mexico | - | 1,222 | 823 | 267 | 134 | 71 | 34 | 19 | 22 | 2,593 |
New York | 52 | 631 | 1,402 | 472 | 244 | 133 | 72 | 40 | 49 | 3,043 |
North Carolina | 7 | 999 | 1,168 | 342 | 137 | 63 | 28 | 14 | 16 | 2,767 |
North Dakota | - | 1,486 | 1,342 | 349 | 143 | 66 | 26 | 16 | 25 | 3,453 |
Ohio | - | 994 | 999 | 280 | 122 | 58 | 24 | 12 | 15 | 2,504 |
Oklahoma | 94 | 670 | 1,213 | 441 | 233 | 133 | 75 | 45 | 50 | 2,860 |
Oregon | - | 949 | 1,481 | 414 | 171 | 77 | 30 | 17 | 14 | 3,152 |
Pennsylvania | - | 931 | 1,237 | 372 | 188 | 90 | 48 | 31 | 39 | 2,937 |
Rhode Island | 1 | 23 | 15 | 16 | 20 | 17 | 13 | 8 | 13 | 125 |
South Carolina | - | 573 | 861 | 342 | 184 | 91 | 43 | 22 | 20 | 2,137 |
South Dakota | 22 | 727 | 1,532 | 595 | 306 | 151 | 76 | 44 | 29 | 3,460 |
Tennessee | 37 | 1,199 | 790 | 187 | 92 | 48 | 20 | 12 | 6 | 2,354 |
Texas | 43 | 3,160 | 4,047 | 1,411 | 591 | 251 | 92 | 40 | 33 | 9,626 |
Utah | 5 | 584 | 754 | 295 | 132 | 59 | 20 | 10 | 8 | 1,861 |
Vermont | 1 | 267 | 186 | 46 | 23 | 14 | 8 | 7 | 9 | 562 |
Virginia | 9 | 548 | 1,163 | 373 | 155 | 65 | 25 | 11 | 6 | 2,345 |
Washington | - | 503 | 1,073 | 392 | 175 | 89 | 48 | 33 | 41 | 2,354 |
West Virginia | 23 | 292 | 501 | 237 | 130 | 73 | 36 | 22 | 22 | 1,313 |
Wisconsin | 2 | 1,193 | 1,117 | 580 | 355 | 203 | 98 | 61 | 63 | 3,670 |
Wyoming | 6 | 1,117 | 1,087 | 319 | 139 | 55 | 21 | 10 | 19 | 2,768 |
U.S. Total | 1,214 | 44,535 | 48,194 | 15,853 | 7,803 | 4,034 | 1,939 | 1,129 | 1,306 | 124,793 |
Puerto Rico | 0 | 1 | 11 | 11 | 7 | 11 | 9 | 11 | 26 | 86 |
Grand Total | 1,214 | 44,536 | 48,205 | 15,864 | 7,810 | 4,045 | 1,947 | 1,140 | 1,332 | 124,880 |
August 30, 2019
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 | 1 | 260 | 76 | 31 | 24 | 18 | 11 | 6 | 6 | 432 | 9 | 435 | 477 | 149 | 77 | 46 | 31 | 20 | 36 | 1,272 |
Alaska | - | 28 | 28 | 12 | 5 | 3 | 1 | 0 | 1 | 79 | 1 | 19 | 45 | 30 | 20 | 16 | 8 | 8 | 14 | 160 |
Arizona | 2 | 147 | 59 | 23 | 12 | 5 | 3 | 1 | 1 | 250 | 44 | 162 | 197 | 121 | 103 | 78 | 48 | 35 | 31 | 774 |
Arkansas | - | 117 | 103 | 39 | 22 | 13 | 7 | 5 | 4 | 310 | 2 | 65 | 223 | 127 | 84 | 67 | 39 | 30 | 41 | 677 |
California | 14 | 262 | 431 | 214 | 153 | 90 | 47 | 31 | 28 | 1,256 | 31 | 448 | 1,097 | 1,019 | 1,033 | 1,053 | 816 | 740 | 1,896 | 8,103 |
Colorado | - | 67 | 118 | 51 | 37 | 16 | 8 | 4 | 3 | 304 | 0 | 139 | 390 | 243 | 188 | 139 | 85 | 63 | 134 | 1,380 |
Connecticut | - | 152 | 103 | 32 | 15 | 8 | 3 | 2 | 3 | 318 | - | 96 | 259 | 176 | 134 | 101 | 62 | 44 | 85 | 958 |
Delaware | - | 5 | 17 | 7 | 5 | 3 | 2 | 1 | 1 | 41 | 1 | 24 | 113 | 49 | 23 | 15 | 10 | 5 | 15 | 255 |
Dist. of Columbia | 0 | - | 1 | - | 4 | - | 2 | - | 4 | 12 | - | - | 2 | - | 15 | 0 | 28 | 0 | 77 | 122 |
Florida | - | 448 | 235 | 39 | 22 | 16 | 9 | 5 | 4 | 778 | 3 | 1,131 | 1,902 | 673 | 341 | 201 | 103 | 66 | 106 | 4,522 |
Georgia | - | 370 | 208 | 69 | 30 | 16 | 9 | 4 | 4 | 710 | 6 | 675 | 1,145 | 398 | 216 | 128 | 73 | 48 | 90 | 2,772 |
Hawaii | - | 1 | 12 | 12 | 9 | 10 | 5 | 3 | 3 | 55 | - | 20 | 47 | 54 | 45 | 49 | 28 | 21 | 52 | 318 |
Idaho | 0 | 51 | 29 | 6 | 4 | 2 | 1 | 0 | 0 | 93 | 93 | 57 | 90 | 39 | 24 | 21 | 11 | 9 | 13 | 264 |
Illinois | 1 | 322 | 389 | 90 | 57 | 37 | 22 | 13 | 12 | 940 | 24 | 183 | 779 | 565 | 462 | 342 | 240 | 181 | 381 | 3,134 |
Indiana | 3 | 188 | 129 | 69 | 46 | 30 | 15 | 10 | 12 | 500 | 37 | 205 | 188 | 105 | 71 | 44 | 26 | 19 | 23 | 681 |
Iowa | 13 | 61 | 64 | 20 | 9 | 5 | 2 | 2 | 2 | 165 | 17 | 93 | 203 | 173 | 133 | 95 | 58 | 46 | 113 | 915 |
Kansas | 1 | 119 | 57 | 26 | 16 | 9 | 4 | 2 | 1 | 234 | 0 | 151 | 149 | 67 | 49 | 35 | 22 | 13 | 21 | 507 |
Kentucky | 1 | 118 | 66 | 20 | 14 | 7 | 3 | 2 | 1 | 231 | 44 | 186 | 212 | 94 | 69 | 44 | 25 | 19 | 32 | 683 |
Louisiana | 11 | 108 | 91 | 53 | 48 | 49 | 26 | 13 | 11 | 400 | 102 | 96 | 228 | 156 | 136 | 117 | 86 | 77 | 152 | 1,048 |
Maine | - | 53 | 20 | 7 | 3 | 3 | 0 | 0 | 0 | 87 | 0 | 16 | 39 | 28 | 22 | 18 | 11 | 6 | 20 | 160 |
Maryland | 0 | 137 | 124 | 29 | 15 | 10 | 6 | 6 | 11 | 338 | 17 | 232 | 401 | 164 | 111 | 90 | 63 | 58 | 176 | 1,295 |
Massachusetts | 0 | 317 | 112 | 31 | 18 | 13 | 8 | 4 | 6 | 508 | 31 | 202 | 362 | 296 | 289 | 290 | 204 | 176 | 473 | 2,292 |
Michigan | 3 | 125 | 295 | 89 | 58 | 44 | 24 | 18 | 19 | 673 | 10 | 223 | 609 | 455 | 354 | 292 | 218 | 173 | 402 | 2,726 |
Minnesota | 0 | 79 | 143 | 49 | 23 | 15 | 8 | 4 | 5 | 325 | 2 | 207 | 319 | 132 | 73 | 44 | 23 | 16 | 33 | 848 |
Mississippi | - | 148 | 48 | 24 | 16 | 10 | 4 | 2 | 1 | 253 | - | 129 | 311 | 176 | 117 | 77 | 54 | 38 | 107 | 1,009 |
Missouri | - | 310 | 137 | 39 | 24 | 16 | 7 | 4 | 3 | 538 | 1 | 311 | 448 | 186 | 125 | 94 | 56 | 44 | 76 | 1,340 |
Montana | - | 41 | 42 | 6 | 4 | 2 | 1 | 0 | 1 | 98 | 4 | 27 | 56 | 38 | 24 | 19 | 14 | 11 | 28 | 217 |
Nebraska | 2 | 19 | 26 | 10 | 6 | 3 | 1 | 1 | 1 | 67 | 98 | 27 | 85 | 49 | 37 | 37 | 30 | 25 | 81 | 370 |
Nevada | 8 | 72 | 39 | 19 | 14 | 5 | 3 | 2 | 1 | 155 | 2 | 131 | 119 | 59 | 38 | 31 | 15 | 9 | 14 | 416 |
New Hampshire | - | 65 | 14 | 3 | 1 | 0 | 0 | - | - | 83 | 0 | 122 | 85 | 33 | 22 | 14 | 11 | 7 | 25 | 320 |
New Jersey | - | 128 | 150 | 34 | 22 | 17 | 12 | 9 | 15 | 387 | - | 283 | 543 | 278 | 226 | 209 | 170 | 152 | 480 | 2,341 |
New Mexico | - | 105 | 29 | 9 | 6 | 4 | 1 | 1 | 1 | 156 | - | 81 | 101 | 60 | 44 | 28 | 17 | 12 | 35 | 379 |
New York | 48 | 231 | 353 | 131 | 66 | 44 | 26 | 16 | 23 | 890 | 152 | 142 | 916 | 623 | 473 | 382 | 271 | 242 | 850 | 3,898 |
North Carolina | 5 | 353 | 230 | 81 | 41 | 21 | 9 | 3 | 2 | 740 | 38 | 345 | 718 | 408 | 250 | 157 | 88 | 58 | 102 | 2,125 |
North Dakota | - | 18 | 28 | 8 | 4 | 2 | 1 | 0 | 0 | 61 | 1 | 23 | 53 | 38 | 31 | 16 | 13 | 9 | 23 | 205 |
Ohio | - | 383 | 318 | 103 | 57 | 33 | 16 | 10 | 11 | 931 | - | 323 | 624 | 335 | 245 | 191 | 128 | 102 | 274 | 2,222 |
Oklahoma | 1 | 86 | 112 | 38 | 17 | 14 | 8 | 5 | 5 | 285 | 34 | 86 | 223 | 112 | 87 | 59 | 32 | 24 | 39 | 660 |
Oregon | - | 102 | 89 | 19 | 10 | 7 | 4 | 2 | 1 | 234 | 3 | 119 | 282 | 168 | 117 | 78 | 55 | 37 | 67 | 924 |
Pennsylvania | - | 279 | 284 | 87 | 52 | 33 | 21 | 14 | 18 | 788 | - | 274 | 871 | 599 | 498 | 372 | 245 | 179 | 396 | 3,433 |
Rhode Island | - | 17 | 26 | 5 | 2 | 1 | 0 | 0 | 1 | 52 | 20 | 24 | 44 | 41 | 52 | 53 | 43 | 39 | 107 | 404 |
South Carolina | - | 152 | 86 | 29 | 20 | 9 | 4 | 2 | 2 | 304 | - | 75 | 378 | 262 | 180 | 119 | 61 | 35 | 52 | 1,161 |
South Dakota | - | 14 | 51 | 12 | 5 | 3 | 1 | 0 | 0 | 88 | 8 | 6 | 39 | 27 | 24 | 18 | 13 | 11 | 8 | 147 |
Tennessee | 0 | 366 | 112 | 40 | 19 | 9 | 6 | 2 | 3 | 557 | 6 | 532 | 731 | 279 | 179 | 114 | 77 | 49 | 99 | 2,060 |
Texas | 5 | 410 | 549 | 224 | 135 | 80 | 34 | 15 | 7 | 1,453 | 125 | 764 | 1,857 | 1,116 | 810 | 615 | 413 | 318 | 946 | 6,840 |
Utah | - | 81 | 109 | 34 | 15 | 9 | 3 | 2 | 1 | 253 | 16 | 132 | 266 | 121 | 69 | 39 | 19 | 12 | 20 | 678 |
Vermont | - | 43 | 16 | 3 | 2 | 0 | 0 | 0 | 0 | 64 | 2 | 11 | 32 | 13 | 8 | 6 | 3 | 3 | 9 | 87 |
Virginia | 0 | 154 | 235 | 69 | 28 | 19 | 8 | 4 | 2 | 521 | 27 | 136 | 536 | 331 | 248 | 182 | 111 | 79 | 81 | 1,703 |
Washington | - | 113 | 124 | 43 | 22 | 11 | 7 | 6 | 8 | 335 | - | 165 | 442 | 282 | 231 | 180 | 128 | 107 | 337 | 1,871 |
West Virginia | 0 | 118 | 64 | 21 | 13 | 9 | 5 | 2 | 3 | 235 | 3 | 32 | 151 | 83 | 53 | 34 | 18 | 17 | 22 | 411 |
Wisconsin | 3 | 117 | 105 | 52 | 41 | 26 | 8 | 7 | 6 | 363 | 9 | 136 | 322 | 308 | 294 | 259 | 170 | 126 | 313 | 1,928 |
Wyoming | - | 38 | 29 | 17 | 11 | 5 | 2 | 2 | 2 | 106 | 1 | 34 | 59 | 29 | 18 | 13 | 9 | 7 | 16 | 185 |
U.S. Total | 124 | 7,499 | 6,315 | 2,179 | 1,302 | 814 | 419 | 248 | 260 | 19,035 | 1,025 | 9,533 | 19,765 | 11,370 | 8,576 | 6,718 | 4,584 | 3,628 | 9,023 | 73,197 |
Puerto Rico | 14 | 2 | 47 | 39 | 35 | 30 | 19 | 19 | 52 | 243 | 10 | 1 | 16 | 26 | 46 | 56 | 52 | 50 | 178 | 425 |
Grand Total | 139 | 7,501 | 6,362 | 2,218 | 1,337 | 845 | 437 | 267 | 311 | 19,278 | 1,034 | 9,534 | 19,781 | 11,396 | 8,622 | 6,775 | 4,636 | 3,678 | 9,201 | 73,622 |
August 30, 2019
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 | 10 | 696 | 553 | 180 | 101 | 64 | 42 | 26 | 42 | 1,704 |
Alaska | 1 | 47 | 73 | 42 | 25 | 19 | 9 | 8 | 15 | 239 |
Arizona | 46 | 309 | 255 | 145 | 114 | 83 | 50 | 36 | 32 | 1,025 |
Arkansas | 2 | 183 | 326 | 166 | 106 | 81 | 46 | 35 | 46 | 988 |
California | 45 | 710 | 1,528 | 1,233 | 1,186 | 1,143 | 864 | 771 | 1,924 | 9,359 |
Colorado | 0 | 206 | 508 | 294 | 225 | 155 | 93 | 67 | 137 | 1,684 |
Connecticut | - | 248 | 363 | 208 | 149 | 109 | 65 | 46 | 87 | 1,275 |
Delaware | 1 | 28 | 130 | 56 | 28 | 18 | 13 | 6 | 17 | 296 |
Dist. of Columbia | 0 | - | 3 | - | 19 | 0 | 30 | 0 | 81 | 134 |
Florida | 3 | 1,579 | 2,136 | 712 | 363 | 217 | 112 | 70 | 110 | 5,300 |
Georgia | 6 | 1,045 | 1,353 | 467 | 246 | 143 | 82 | 52 | 93 | 3,482 |
Hawaii | - | 20 | 60 | 66 | 54 | 59 | 33 | 24 | 55 | 373 |
Idaho | 93 | 108 | 119 | 45 | 28 | 22 | 12 | 9 | 13 | 357 |
Illinois | 25 | 505 | 1,168 | 655 | 519 | 379 | 262 | 194 | 393 | 4,074 |
Indiana | 40 | 393 | 317 | 174 | 117 | 74 | 42 | 29 | 35 | 1,180 |
Iowa | 30 | 154 | 267 | 193 | 142 | 100 | 61 | 48 | 115 | 1,080 |
Kansas | 1 | 270 | 206 | 93 | 64 | 43 | 26 | 15 | 22 | 740 |
Kentucky | 45 | 304 | 278 | 114 | 84 | 51 | 29 | 21 | 34 | 914 |
Louisiana | 113 | 204 | 319 | 209 | 184 | 166 | 112 | 91 | 163 | 1,448 |
Maine | 0 | 69 | 60 | 35 | 25 | 21 | 11 | 6 | 20 | 247 |
Maryland | 18 | 369 | 525 | 193 | 126 | 100 | 69 | 64 | 188 | 1,633 |
Massachusetts | 31 | 519 | 474 | 326 | 307 | 302 | 212 | 180 | 479 | 2,799 |
Michigan | 13 | 348 | 904 | 544 | 412 | 336 | 242 | 191 | 421 | 3,399 |
Minnesota | 2 | 286 | 461 | 181 | 97 | 59 | 32 | 21 | 38 | 1,174 |
Mississippi | - | 276 | 359 | 200 | 133 | 87 | 58 | 40 | 108 | 1,262 |
Missouri | 1 | 620 | 585 | 225 | 149 | 109 | 63 | 48 | 79 | 1,878 |
Montana | 4 | 68 | 98 | 44 | 28 | 21 | 15 | 12 | 28 | 315 |
Nebraska | 100 | 46 | 111 | 60 | 43 | 39 | 32 | 25 | 82 | 437 |
Nevada | 10 | 203 | 158 | 78 | 52 | 36 | 17 | 11 | 15 | 571 |
New Hampshire | 0 | 187 | 99 | 36 | 23 | 14 | 11 | 7 | 25 | 403 |
New Jersey | - | 411 | 693 | 312 | 248 | 226 | 182 | 161 | 495 | 2,728 |
New Mexico | - | 186 | 129 | 69 | 50 | 32 | 19 | 13 | 37 | 535 |
New York | 200 | 372 | 1,269 | 754 | 539 | 426 | 297 | 258 | 873 | 4,789 |
North Carolina | 43 | 698 | 948 | 489 | 292 | 178 | 96 | 61 | 104 | 2,865 |
North Dakota | 1 | 41 | 81 | 46 | 35 | 18 | 13 | 9 | 23 | 266 |
Ohio | - | 707 | 942 | 438 | 301 | 224 | 144 | 113 | 285 | 3,153 |
Oklahoma | 35 | 171 | 335 | 150 | 104 | 73 | 40 | 29 | 44 | 946 |
Oregon | 3 | 222 | 370 | 187 | 128 | 85 | 59 | 40 | 68 | 1,158 |
Pennsylvania | - | 553 | 1,155 | 686 | 549 | 405 | 266 | 192 | 414 | 4,221 |
Rhode Island | 20 | 41 | 70 | 46 | 55 | 54 | 44 | 39 | 108 | 456 |
South Carolina | - | 227 | 464 | 291 | 200 | 127 | 65 | 37 | 53 | 1,465 |
South Dakota | 8 | 20 | 91 | 39 | 30 | 21 | 15 | 11 | 8 | 235 |
Tennessee | 6 | 898 | 843 | 319 | 198 | 123 | 83 | 51 | 102 | 2,617 |
Texas | 131 | 1,174 | 2,406 | 1,340 | 946 | 695 | 447 | 332 | 954 | 8,293 |
Utah | 16 | 213 | 375 | 154 | 84 | 48 | 22 | 14 | 21 | 931 |
Vermont | 2 | 54 | 48 | 16 | 10 | 7 | 3 | 4 | 9 | 151 |
Virginia | 28 | 290 | 771 | 399 | 276 | 201 | 120 | 83 | 83 | 2,224 |
Washington | - | 278 | 566 | 325 | 253 | 191 | 134 | 113 | 345 | 2,206 |
West Virginia | 3 | 150 | 215 | 104 | 67 | 43 | 23 | 19 | 25 | 646 |
Wisconsin | 13 | 253 | 427 | 360 | 335 | 286 | 178 | 133 | 318 | 2,290 |
Wyoming | 1 | 72 | 88 | 47 | 29 | 18 | 11 | 9 | 18 | 291 |
U.S. Total | 1,149 | 17,032 | 26,080 | 13,549 | 9,878 | 7,533 | 5,002 | 3,876 | 9,283 | 92,233 |
Puerto Rico | 24 | 3 | 63 | 65 | 80 | 87 | 71 | 69 | 230 | 668 |
Grand Total | 1,173 | 17,035 | 26,143 | 13,614 | 9,958 | 7,620 | 5,073 | 3,944 | 9,513 | 92,900 |
(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.