| Highway Statistics 2001 | OHPI > Highway Statistics > 2001 > Roadway Extent > Table HM-64 |
| JUNE 2004 | Table HM-64 SHEET 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 | - | 259 | 258 | 44 | 30 | 12 | - | - | - | 603 |
| Alaska | - | 10 | 146 | 299 | 278 | 266 | 31 | - | - | 1,030 |
| Arizona | - | 867 | 114 | 15 | - | - | - | - | - | 996 |
| Arkansas | 9 | 4 | 147 | 64 | 44 | 67 | 60 | 38 | 35 | 459 |
| California | - | 55 | 551 | 369 | 136 | 143 | 51 | 31 | 22 | 1,358 |
| Colorado | - | 68 | 487 | 175 | 37 | - | - | 1 | - | 768 |
| Connecticut | - | 3 | 76 | 16 | 2 | 4 | - | - | - | 101 |
| Delaware | - | - | - | - | - | - | - | - | - | - |
| Dist. of Columbia | - | - | - | - | - | - | - | - | - | - |
| Florida | - | 787 | 99 | 2 | 36 | 27 | - | - | - | 951 |
| Georgia | - | 554 | 211 | 37 | 4 | - | - | - | - | 806 |
| Hawaii | - | - | - | - | 6 | - | - | - | - | 6 |
| Idaho | - | 216 | 221 | 76 | 4 | 1 | 4 | 3 | 1 | 526 |
| Illinois | - | 123 | 807 | 312 | 226 | 39 | 6 | - | 2 | 1,515 |
| Indiana | - | 366 | 374 | 75 | 32 | 5 | - | - | - | 852 |
| Iowa | 1 | 65 | 290 | 183 | 58 | 38 | - | - | - | 634 |
| Kansas | - | 232 | 378 | 70 | 14 | - | - | - | - | 694 |
| Kentucky | 1 | 263 | 126 | 37 | 72 | 33 | - | - | - | 531 |
| Louisiana | 54 | 100 | 198 | 103 | 73 | 49 | 35 | - | - | 558 |
| Maine | - | 24 | 259 | 23 | 6 | 1 | - | - | - | 313 |
| Maryland | 1 | 20 | 162 | 34 | 9 | 1 | 1 | - | - | 227 |
| Massachusetts | - | - | 71 | 58 | 9 | 25 | - | - | - | 163 |
| Michigan | - | 9 | 231 | 163 | 158 | 102 | 58 | 13 | 5 | 739 |
| Minnesota | - | 138 | 373 | 156 | 11 | 3 | - | - | - | 681 |
| Mississippi | - | 92 | 239 | 101 | 59 | 45 | 12 | 8 | - | 556 |
| Missouri | - | 3 | 248 | 275 | 194 | 77 | 10 | - | - | 807 |
| Montana | - | 303 | 626 | 116 | 54 | 20 | 15 | - | 1 | 1,135 |
| Nebraska | - | 230 | 57 | 63 | 47 | 30 | 10 | - | - | 437 |
| Nevada | - | 398 | 48 | 23 | 11 | - | - | - | - | 480 |
| New Hampshire | - | 25 | 149 | 3 | - | - | - | - | - | 177 |
| New Jersey | - | 2 | 55 | 27 | 8 | 7 | 10 | 6 | 4 | 119 |
| New Mexico | - | 563 | 294 | 28 | 6 | - | 1 | - | - | 892 |
| New York | 15 | 116 | 542 | 110 | 49 | 55 | 26 | 27 | 6 | 931 |
| North Carolina | - | 74 | 301 | 131 | 55 | 71 | 6 | 12 | 1 | 651 |
| North Dakota | - | 142 | 295 | 75 | 19 | - | - | - | - | 531 |
| Ohio | - | 500 | 270 | 42 | 12 | 3 | - | - | 2 | 829 |
| Oklahoma | 7 | 172 | 283 | 143 | 73 | 39 | 2 | - | 1 | 713 |
| Oregon | - | 9 | 189 | 307 | 71 | 4 | - | - | - | 580 |
| Pennsylvania | 4 | 192 | 671 | 228 | 69 | 23 | 9 | 8 | 4 | 1,204 |
| Rhode Island | - | - | 16 | 5 | - | - | - | - | - | 21 |
| South Carolina | - | 253 | 287 | 89 | 39 | 2 | - | - | - | 670 |
| South Dakota | - | 29 | 344 | 161 | 54 | 39 | 1 | - | 1 | 629 |
| Tennessee | - | 534 | 193 | 6 | 1 | 1 | - | - | - | 735 |
| Texas | - | 290 | 1,401 | 350 | 143 | 21 | 2 | 2 | 4 | 2,213 |
| Utah | 16 | 147 | 301 | 127 | 74 | 73 | 22 | 8 | 4 | 756 |
| Vermont | - | 77 | 129 | 48 | 10 | 13 | - | 4 | - | 281 |
| Virginia | - | 71 | 600 | 51 | 3 | 5 | - | - | - | 730 |
| Washington | - | 162 | 206 | 90 | 38 | 5 | - | - | - | 501 |
| West Virginia | - | 98 | 237 | 33 | 56 | 23 | 2 | 6 | - | 455 |
| Wisconsin | 1 | 108 | 326 | 99 | 22 | 26 | - | - | - | 581 |
| Wyoming | - | 385 | 367 | 38 | 29 | 7 | - | - | - | 826 |
| U.S. Total | 109 | 9,138 | 14,253 | 5,080 | 2,441 | 1,405 | 374 | 167 | 93 | 32,951 |
| Puerto Rico | - | - | 6 | 21 | 51 | 16 | 5 | 2 | 1 | 102 |
| Grand Total | 109 | 9,138 | 14,259 | 5,101 | 2,492 | 1,421 | 379 | 169 | 94 | 33,053 |
| JUNE 2004 | Table HM-64 SHEET 2 OF 4 |
| STATE | INTERNATIONAL ROUGHNESS INDEX (IRI) 1/ | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| Alabama | 5 | 480 | 1,225 | 314 | 48 | 7 | 2 | - | - | 2,076 | - | 458 | 2,163 | 824 | 146 | 76 | - | - | 27 | 3,694 |
| Alaska | 455 | - | 136 | 72 | 31 | 54 | 53 | 2 | 7 | 355 | 219 | - | 12 | 51 | 71 | 29 | 59 | - | - | 222 |
| Arizona | 67 | 347 | 438 | 180 | 83 | 62 | 4 | 4 | 1 | 1,119 | 58 | 264 | 404 | 225 | 165 | 24 | 118 | - | - | 1,200 |
| Arkansas | 80 | 9 | 639 | 666 | 362 | 214 | 108 | 48 | 16 | 2,062 | 15 | - | 630 | 839 | 588 | 801 | 75 | 55 | 15 | 3,003 |
| California | 8 | 51 | 1,086 | 1,128 | 829 | 446 | 118 | 48 | 21 | 3,727 | - | 34 | 1,233 | 1,466 | 1,664 | 1,044 | 619 | 590 | 315 | 6,965 |
| Colorado | - | 207 | 996 | 536 | 234 | 181 | 35 | 50 | 7 | 2,246 | - | 522 | 1,024 | 967 | 404 | 413 | 152 | 145 | 10 | 3,637 |
| Connecticut | - | - | 67 | 80 | 69 | 27 | 14 | 2 | 3 | 262 | - | - | 42 | 92 | 248 | 78 | 28 | 7 | - | 495 |
| Delaware | 11 | 6 | 83 | 80 | 21 | 2 | 3 | 3 | 1 | 199 | - | - | 59 | 24 | 19 | 6 | 3 | 6 | 4 | 121 |
| Dist. of Columbia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Florida | 6 | 1,555 | 1,562 | 392 | 131 | 55 | 35 | 10 | 4 | 3,744 | - | 643 | 1,536 | 235 | 86 | 58 | 7 | 20 | - | 2,585 |
| Georgia | - | 2,030 | 737 | 34 | 3 | 4 | 1 | - | - | 2,809 | - | 3,664 | 1,879 | 20 | 10 | - | - | - | - | 5,573 |
| Hawaii | 4 | - | 8 | 40 | 27 | 31 | 13 | 1 | 1 | 121 | 53 | - | 38 | 85 | 109 | 38 | 12 | 39 | 3 | 324 |
| Idaho | - | 277 | 898 | 342 | 156 | 43 | 8 | 1 | 1 | 1,726 | - | 216 | 583 | 281 | 131 | 18 | 4 | 1 | 12 | 1,246 |
| Illinois | - | 86 | 1,036 | 678 | 459 | 215 | 95 | 27 | 10 | 2,606 | - | 715 | 1,473 | 1,617 | 230 | 506 | 127 | 19 | 112 | 4,799 |
| Indiana | 9 | 531 | 660 | 261 | 179 | 68 | 26 | 3 | 1 | 1,729 | - | 598 | 868 | 362 | 132 | 240 | 26 | 10 | - | 2,236 |
| Iowa | 3 | 443 | 1,291 | 604 | 471 | 400 | 173 | 65 | 36 | 3,483 | 35 | 773 | 1,039 | 519 | 614 | 382 | 365 | 126 | 104 | 3,922 |
| Kansas | 1 | 673 | 1,749 | 490 | 174 | 44 | 13 | 13 | 5 | 3,161 | - | 664 | 2,782 | 399 | 405 | 10 | 14 | 10 | 21 | 4,305 |
| Kentucky | - | 385 | 1,048 | 367 | 174 | 58 | 17 | 1 | - | 2,050 | - | 3 | 671 | 582 | 288 | 84 | 5 | 1 | - | 1,634 |
| Louisiana | 13 | 77 | 451 | 205 | 186 | 148 | 98 | 26 | 32 | 1,223 | - | 166 | 481 | 325 | 380 | 99 | 62 | 55 | 64 | 1,632 |
| Maine | - | 37 | 462 | 195 | 78 | 9 | 4 | 2 | - | 787 | - | 42 | 478 | 211 | 202 | 67 | 43 | 4 | - | 1,047 |
| Maryland | 11 | 59 | 329 | 106 | 35 | 11 | 4 | 4 | 4 | 552 | - | 41 | 599 | 170 | 97 | 19 | 10 | 14 | - | 950 |
| Massachusetts | - | 1 | 46 | 124 | 70 | 38 | 20 | 9 | 4 | 312 | - | - | 16 | 94 | 324 | 102 | 78 | 14 | 44 | 672 |
| Michigan | - | 183 | 1,010 | 687 | 358 | 259 | 120 | 63 | 82 | 2,762 | - | 58 | 1,799 | 1,133 | 506 | 77 | 156 | 85 | 294 | 4,108 |
| Minnesota | - | 1,114 | 1,688 | 533 | 201 | 34 | 15 | 4 | 5 | 3,594 | - | 1,131 | 3,269 | 1,354 | 446 | 97 | 66 | 78 | 21 | 6,462 |
| Mississippi | - | 163 | 914 | 457 | 235 | 94 | 19 | 22 | 8 | 1,912 | - | 20 | 1,138 | 1,375 | 874 | 269 | 102 | 43 | 3 | 3,824 |
| Missouri | 1 | - | 493 | 796 | 935 | 488 | 228 | 97 | 90 | 3,127 | - | - | 235 | 962 | 584 | 605 | 202 | 407 | 444 | 3,439 |
| Montana | 7 | 242 | 1,717 | 454 | 119 | 65 | 6 | 9 | 3 | 2,615 | - | 386 | 1,748 | 489 | 138 | 128 | 47 | 52 | - | 2,988 |
| Nebraska | 11 | 478 | 998 | 515 | 298 | 229 | 83 | 80 | 33 | 2,714 | - | 581 | 1,743 | 966 | 253 | 242 | 96 | 101 | 229 | 4,211 |
| Nevada | - | 1,072 | 313 | 10 | 1 | 1 | - | - | - | 1,397 | - | 457 | 215 | 14 | 7 | 13 | - | 11 | - | 717 |
| New Hampshire | - | 11 | 255 | 124 | 28 | 17 | 17 | - | 7 | 459 | - | 9 | 272 | 135 | 38 | 19 | - | 6 | 9 | 488 |
| New Jersey | 9 | 3 | 218 | 161 | 70 | 54 | 11 | 3 | 4 | 524 | 77 | - | 153 | 190 | 30 | 26 | - | 7 | 14 | 420 |
| New Mexico | 11 | 773 | 680 | 147 | 116 | 47 | 21 | 27 | 4 | 1,815 | - | 235 | 621 | 201 | 450 | 234 | 55 | 28 | 42 | 1,866 |
| New York | 24 | 129 | 1,185 | 297 | 112 | 44 | 17 | 18 | 27 | 1,829 | - | 123 | 2,328 | 1,204 | 302 | 26 | 87 | - | 55 | 4,125 |
| North Carolina | - | 74 | 1,136 | 438 | 298 | 179 | 74 | 24 | 20 | 2,243 | - | 14 | 752 | 918 | 615 | 338 | 232 | 37 | 82 | 2,988 |
| North Dakota | - | 292 | 1,434 | 696 | 342 | 145 | 15 | 5 | - | 2,929 | - | 236 | 1,023 | 724 | 425 | 75 | 29 | 2 | - | 2,514 |
| Ohio | - | 575 | 1,255 | 287 | 88 | 25 | 4 | 3 | 2 | 2,239 | - | 663 | 1,542 | 384 | 240 | - | 2 | - | - | 2,831 |
| Oklahoma | 252 | 162 | 838 | 484 | 311 | 168 | 105 | 24 | 32 | 2,124 | 2,268 | 35 | 165 | 204 | 54 | 6 | 6 | 7 | 4 | 481 |
| Oregon | 150 | 13 | 506 | 1,247 | 740 | 132 | 34 | 6 | 4 | 2,682 | - | 22 | 348 | 769 | 677 | 286 | 85 | 7 | - | 2,194 |
| Pennsylvania | 8 | 179 | 962 | 658 | 370 | 188 | 65 | 32 | 21 | 2,475 | - | 83 | 1,364 | 1,477 | 836 | 880 | 267 | 60 | 140 | 5,107 |
| Rhode Island | - | - | 9 | 26 | 18 | 5 | 6 | 1 | 1 | 66 | - | - | 15 | 27 | 22 | 7 | 2 | - | - | 73 |
| South Carolina | - | 95 | 974 | 283 | 96 | 27 | 11 | 4 | 5 | 1,495 | - | 247 | 1,694 | 810 | 447 | 414 | 43 | 4 | 10 | 3,669 |
| South Dakota | 61 | 110 | 631 | 528 | 486 | 368 | 173 | 103 | 86 | 2,485 | 57 | 44 | 629 | 895 | 713 | 480 | 244 | 199 | 88 | 3,292 |
| Tennessee | 2 | 684 | 964 | 140 | 45 | 26 | 8 | 1 | 1 | 1,869 | - | 56 | 1,778 | 714 | 382 | 334 | 154 | - | - | 3,418 |
| Texas | 3 | 359 | 3,386 | 2,163 | 738 | 199 | 18 | 19 | 10 | 6,892 | - | 77 | 4,184 | 3,527 | 1,434 | 191 | 241 | 1 | - | 9,655 |
| Utah | 30 | 46 | 415 | 261 | 162 | 75 | 13 | 4 | 4 | 980 | 63 | 81 | 338 | 438 | 321 | 174 | 91 | 4 | 26 | 1,473 |
| Vermont | - | 1 | 152 | 60 | 38 | 30 | 15 | 12 | 7 | 315 | - | 6 | 309 | 177 | 85 | 66 | 67 | 22 | 2 | 734 |
| Virginia | - | 21 | 752 | 477 | 175 | 78 | 28 | 16 | 10 | 1,557 | 6 | - | 682 | 1,443 | 1,100 | 262 | 5 | 57 | 4 | 3,553 |
| Washington | - | 250 | 1,064 | 499 | 183 | 68 | 9 | 3 | 3 | 2,079 | 23 | 93 | 682 | 553 | 423 | 98 | 24 | 34 | 46 | 1,953 |
| West Virginia | - | 131 | 436 | 297 | 131 | 41 | 20 | 13 | 11 | 1,080 | - | 52 | 395 | 399 | 297 | 225 | 46 | 66 | 55 | 1,535 |
| Wisconsin | - | 809 | 1,416 | 616 | 299 | 112 | 60 | 22 | 20 | 3,354 | - | 1,495 | 1,553 | 1,017 | 330 | 225 | 229 | 146 | 13 | 5,008 |
| Wyoming | 5 | 930 | 900 | 121 | 13 | 16 | 5 | - | - | 1,985 | - | 191 | 783 | 202 | 107 | 34 | 1 | - | - | 1,318 |
| U.S. Total | 1,247 | 16,153 | 41,648 | 20,356 | 10,826 | 5,331 | 2,044 | 934 | 654 | 97,946 | 2,874 | 15,198 | 49,767 | 32,089 | 18,449 | 9,925 | 4,386 | 2,580 | 2,312 | 134,706 |
| Puerto Rico | 8 | - | - | 10 | 24 | 30 | 17 | 5 | 8 | 94 | 117 | - | - | 12 | 10 | 52 | 36 | 30 | 30 | 170 |
| Grand Total | 1,255 | 16,153 | 41,648 | 20,366 | 10,850 | 5,361 | 2,061 | 939 | 662 | 98,040 | 2,991 | 15,198 | 49,767 | 32,101 | 18,459 | 9,977 | 4,422 | 2,610 | 2,342 | 134,876 |
| JUNE 2004 | Table HM-64 SHEET 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 | - | 75 | 120 | 41 | 33 | 30 | 3 | - | - | 302 |
| Alaska | - | 12 | 22 | 7 | 3 | 7 | 1 | - | - | 52 |
| Arizona | - | 87 | 47 | 29 | 9 | - | - | - | - | 172 |
| Arkansas | - | - | 36 | 43 | 33 | 30 | 22 | 15 | 9 | 188 |
| California | 2 | 30 | 180 | 169 | 225 | 250 | 132 | 77 | 33 | 1,096 |
| Colorado | - | 14 | 90 | 37 | 33 | 10 | - | - | - | 184 |
| Connecticut | - | 6 | 100 | 85 | 29 | 10 | 7 | 4 | 5 | 246 |
| Delaware | 1 | - | 7 | 11 | 7 | 3 | 6 | 2 | 3 | 39 |
| Dist. of Columbia | - | 10 | 1 | 2 | 2 | 1 | - | - | - | 16 |
| Florida | 8 | 263 | 190 | 32 | 15 | 12 | - | - | - | 512 |
| Georgia | 1 | 299 | 122 | 15 | 2 | - | - | - | - | 438 |
| Hawaii | - | - | 7 | 3 | 10 | 10 | 10 | 5 | 4 | 49 |
| Idaho | - | 29 | 35 | 10 | 3 | 5 | 2 | 2 | - | 86 |
| Illinois | 1 | 20 | 226 | 211 | 126 | 30 | 39 | 2 | - | 654 |
| Indiana | - | 62 | 149 | 59 | 34 | 9 | 4 | - | 1 | 318 |
| Iowa | - | 4 | 44 | 35 | 30 | 16 | 12 | - | 5 | 146 |
| Kansas | 1 | 12 | 65 | 61 | 27 | 13 | 1 | - | 1 | 180 |
| Kentucky | - | 88 | 84 | 22 | 28 | - | 5 | 3 | - | 230 |
| Louisiana | 55 | 19 | 67 | 55 | 48 | 36 | 8 | 2 | 2 | 237 |
| Maine | 1 | - | 44 | 8 | 1 | - | - | - | - | 53 |
| Maryland | 9 | 9 | 117 | 64 | 20 | 13 | 7 | 7 | 6 | 243 |
| Massachusetts | - | 2 | 201 | 122 | 36 | 32 | 8 | 2 | 1 | 404 |
| Michigan | 1 | 5 | 108 | 146 | 93 | 58 | 39 | 17 | 34 | 500 |
| Minnesota | - | 34 | 123 | 44 | 20 | 10 | 2 | - | - | 233 |
| Mississippi | - | 3 | 28 | 41 | 41 | 10 | 2 | 3 | - | 128 |
| Missouri | - | - | 88 | 109 | 69 | 51 | 21 | 21 | 14 | 373 |
| Montana | - | 1 | 28 | 11 | 8 | 4 | 2 | 1 | - | 55 |
| Nebraska | - | 4 | 18 | 4 | 11 | 4 | 3 | 1 | - | 45 |
| Nevada | - | 30 | 15 | 12 | 6 | 15 | 2 | - | - | 80 |
| New Hampshire | - | 12 | 29 | 7 | - | - | - | - | - | 48 |
| New Jersey | 14 | 1 | 80 | 99 | 30 | 39 | 26 | 14 | 10 | 299 |
| New Mexico | - | 36 | 42 | 15 | 7 | 1 | 5 | 1 | - | 107 |
| New York | 19 | 50 | 317 | 118 | 63 | 51 | 30 | 32 | 48 | 709 |
| North Carolina | - | 4 | 199 | 77 | 46 | 22 | 3 | 11 | 7 | 369 |
| North Dakota | - | 10 | 22 | 7 | 1 | - | - | - | - | 40 |
| Ohio | - | 310 | 334 | 68 | 17 | 7 | 4 | 2 | 2 | 744 |
| Oklahoma | 2 | 12 | 61 | 31 | 33 | 18 | 20 | 16 | 15 | 206 |
| Oregon | 1 | - | 27 | 66 | 40 | |||||