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Table HM-64 – Highway Statistics 2012 – Office of Highway Policy Information (OHPI) – FHWA

Highway Statistics Series

Highway Statistics 2012


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Functional System Length - 2012

October 2013
Table HM-64
1 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

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 5 343 174 40 23 13 5 3 4 605
Alaska 0 148 365 189 136 85 42 29 31 1,024
Arizona - 543 307 72 33 13 6 4 3 982
Arkansas 6 182 147 44 23 13 8 7 5 429
California 57 204 513 219 151 61 31 15 28 1,222
Colorado - 102 289 184 37 42 21 9 1 684
Connecticut - 14 18 6 2 2 0 0 0 43
Delaware - - - - - - - - - -
Dist. of Columbia - - - - - - - - - -
Florida 1 484 240 16 5 2 0 0 - 747
Georgia 22 323 275 54 29 14 - - - 695
Hawaii - 0 2 2 1 1 0 0 0 6
Idaho - 125 235 81 40 18 8 6 9 522
Illinois - 597 571 96 7 84 - - - 1,356
Indiana 157 315 150 52 30 23 13 8 10 599
Iowa 0 240 264 102 19 3 1 0 - 629
Kansas - 133 360 125 33 5 - - - 656
Kentucky 29 374 158 24 8 2 1 0 0 568
Louisiana 5 161 155 88 61 42 14 5 3 528
Maine 0 115 98 80 6 - 0 0 - 299
Maryland 1 79 84 11 4 2 1 1 1 182
Massachusetts - 20 35 5 1 1 0 0 1 64
Michigan - 216 236 68 37 24 12 6 4 603
Minnesota - 177 269 89 52 25 9 5 3 629
Mississippi - 168 242 55 10 20 8 - - 502
Missouri - 546 254 39 15 6 3 2 1 867
Montana - 416 565 77 34 20 7 4 6 1,129
Nebraska - 240 124 36 17 - - - - 418
Nevada 5 278 129 10 8 9 4 1 1 440
New Hampshire - 111 20 12 5 2 4 - - 154
New Jersey - 24 15 2 2 0 0 0 0 45
New Mexico 2 475 315 33 15 7 0 0 - 846
New York 5 227 476 68 35 17 6 9 9 847
North Carolina 0 319 174 41 21 13 6 2 5 581
North Dakota - 197 289 27 6 - - - - 519
Ohio 0 238 396 66 12 9 1 0 0 723
Oklahoma - 266 311 83 13 9 1 1 - 684
Oregon 3 196 223 90 25 10 4 2 1 550
Pennsylvania 1 401 508 142 52 9 2 1 1 1,117
Rhode Island - 21 - - - - - - - 21
South Carolina - 199 299 65 15 2 1 0 - 581
South Dakota - 155 350 91 1 1 0 0 - 599
Tennessee - 599 63 13 7 3 2 0 0 687
Texas 16 638 1,068 224 67 23 13 4 5 2,041
Utah - 342 319 45 14 4 0 - - 724
Vermont - 201 67 8 3 1 0 0 - 280
Virginia 0 165 422 54 13 4 0 - - 658
Washington - 170 164 53 30 19 13 8 11 467
West Virginia 3 61 237 22 26 9 7 - 2 365
Wisconsin 0 105 211 74 61 26 1 0 0 479
Wyoming - 258 418 90 37 5 - - - 809
U.S. Total 318 11,909 12,603 3,167 1,283 706 258 134 146 30,204
Puerto Rico (4) - - 1 10 4 11 5 4 7 42
Grand Total 318 11,909 12,604 3,177 1,287 717 263 138 153 30,246

October 2013
Table HM-64
2 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

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 - 0 0 - - 0 - - - 0 29 1,002 840 137 63 32 13 7 8 2,103 39 944 2,036 614 257 120 32 17 19 4,038
Alaska - - - - - - - - - - 264 48 127 72 64 52 39 34 109 544 103 27 71 50 61 53 34 23 35 354
Arizona 11 21 9 2 0 0 0 - - 32 98 509 406 115 69 36 12 8 12 1,168 75 319 420 232 127 69 32 18 17 1,233
Arkansas 0 13 59 25 16 10 4 3 2 131 18 344 891 391 224 118 53 27 20 2,067 39 175 1,189 691 395 277 144 54 34 2,958
California 1 - - - - - - - - - 305 385 1,482 625 360 193 98 47 33 3,223 883 7 2,426 1,063 1,072 614 238 120 258 5,798
Colorado - 8 20 8 4 0 - - - 41 - 346 1,009 535 243 101 43 22 13 2,311 226 119 984 856 864 292 220 110 50 3,495
Connecticut - 9 19 8 2 0 - - 0 39 - 3 38 36 23 13 6 3 4 127 - 1 41 51 69 42 22 15 16 257
Delaware - - 0 - - - - - - 0 - 22 99 26 10 1 0 1 2 161 - 8 78 15 7 2 1 2 2 115
Dist. of Columbia - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Florida 0 94 81 5 1 0 0 - 0 181 122 1,062 1,235 192 67 30 10 7 7 2,611 5 687 1,418 190 37 6 5 2 4 2,350
Georgia - - - - - - - - - - 89 1,038 1,387 118 34 6 1 0 0 2,584 1,358 1,550 2,087 199 - 4 - - 3 3,843
Hawaii - - - - - - - - - - 0 4 22 20 18 14 9 6 14 107 0 39 61 54 45 32 19 14 29 294
Idaho - - - - - - - - - - 7 104 693 435 249 125 54 34 42 1,736 136 39 475 335 176 103 54 28 49 1,257
Illinois - - - - - - - - - - - 390 1,094 414 238 149 49 10 8 2,353 - 495 2,446 1,082 363 52 62 - 171 4,672
Indiana 8 2 3 1 0 0 - 0 - 6 25 592 580 190 75 43 20 16 20 1,537 12 643 853 243 143 78 33 24 34 2,050
Iowa - - - - - - - - - - 31 508 1,019 747 456 369 189 113 50 3,451 19 932 1,080 551 304 617 224 16 172 3,896
Kansas 13 30 234 125 14 - - - - 402 6 531 1,659 365 88 19 6 3 1 2,671 - 538 2,324 917 278 82 9 52 43 4,243
Kentucky 108 248 122 26 16 7 3 1 1 424 263 439 429 117 45 24 12 5 4 1,076 136 179 924 532 328 166 62 35 80 2,306
Louisiana - - - - - - - - - - 21 143 439 153 96 67 42 27 31 998 18 225 744 334 163 105 61 37 54 1,722
Maine - - - - - - - - - - 0 40 308 295 83 33 11 16 3 788 0 30 334 336 188 61 32 11 26 1,019
Maryland - - - - - - - - - - 2 202 169 36 17 8 5 3 3 443 3 142 454 156 55 16 5 5 4 838
Massachusetts - 5 5 0 0 0 0 - 0 10 - 11 31 23 16 11 5 3 5 105 - 17 89 65 55 43 18 9 6 301
Michigan - 203 107 33 18 9 4 1 1 376 - 1,087 759 178 82 42 22 13 12 2,196 161 1,472 1,985 489 336 219 151 96 103 4,852
Minnesota - 0 2 1 1 2 1 1 1 8 24 918 1,245 557 339 224 130 72 88 3,574 1,097 1,021 1,676 682 889 680 285 85 227 5,546
Mississippi - - - - - - - - - - - 376 1,046 253 133 73 32 20 3 1,934 - 353 1,411 1,058 758 121 7 1 - 3,710
Missouri 0 357 422 64 20 9 3 1 1 878 38 692 866 268 118 63 30 16 13 2,066 9 219 1,248 1,063 604 366 187 117 182 3,986
Montana - - - - - - - - - - - 634 1,334 348 146 78 32 19 33 2,623 - 412 1,435 525 286 186 78 41 27 2,990
Nebraska - 24 208 81 19 6 4 6 3 351 - 885 811 302 215 66 38 23 22 2,360 8 798 1,381 717 962 260 12 12 3 4,146
Nevada - - - - - - - - - - 1 837 606 54 10 2 1 0 0 1,510 417 54 184 77 3 19 0 0 0 339
New Hampshire - 17 4 - 1 - - - - 21 - 81 166 52 26 10 3 2 1 342 - 108 144 113 19 22 49 11 22 488
New Jersey - 5 19 5 3 2 1 0 0 35 0 17 33 33 33 18 10 6 6 157 13 9 67 65 39 43 34 7 9 275
New Mexico - - - - - - - - - - 12 643 794 222 106 49 11 7 1 1,832 1 348 619 397 227 78 94 87 111 1,961
New York 2 15 65 27 11 4 2 0 1 126 1 100 778 362 136 56 17 11 14 1,474 - 18 1,761 920 409 321 208 6 41 3,685
North Carolina 3 7 4 2 1 1 0 0 0 15 20 420 879 261 114 53 26 15 17 1,785 265 110 1,124 505 288 155 102 37 72 2,393
North Dakota - - - - - - - - - - - 664 1,627 401 132 60 20 8 23 2,935 - 691 1,193 292 98 154 35 52 - 2,515
Ohio - - - - - - - - - - 4 412 956 396 113 53 25 10 5 1,969 - 247 1,343 631 329 53 27 20 10 2,659
Oklahoma - - - - - - - - - - - 311 1,015 484 316 87 56 41 19 2,328 - 399 1,050 569 417 201 37 30 - 2,703
Oregon - - - - - - - - - - 13 560 1,393 435 201 98 45 22 26 2,781 28 266 1,019 515 281 138 62 31 24 2,337
Pennsylvania 0 96 152 47 13 10 8 2 0 331 4 243 718 348 166 71 26 9 12 1,592 - 316 1,438 1,472 504 356 243 58 135 4,522
Rhode Island - - - - - - - - - - - - 7 11 9 5 7 4 4 48 - - 2 8 20 12 16 3 4 66
South Carolina - - - - - - - - - - - 133 877 412 161 49 12 1 4 1,648 - 257 1,153 978 412 109 19 - - 2,928
South Dakota - - - - - - - - - - - 424 1,620 503 163 96 34 33 26 2,899 - 553 1,217 403 315 329 102 49 0 2,969
Tennessee - - - - - - - - - - 16 879 714 163 73 26 13 6 6 1,880 9 995 1,587 329 111 61 30 15 61 3,190
Texas - - - - - - - - - - 189 1,194 3,431 1,790 735 244 70 17 10 7,492 484 1,340 3,979 2,434 959 708 88 66 30 9,603
Utah - - 0 - - - - - - 0 3 153 525 274 105 54 16 5 0 1,132 215 36 308 305 249 150 42 - 1 1,092
Vermont - 0 - - 0 0 - - - 0 - 76 155 43 20 11 6 4 6 321 - 31 211 116 119 86 44 43 93 743
Virginia - - - - - - - - - - 2 126 941 265 51 13 7 2 - 1,406 - 79 1,638 1,178 192 1 10 4 3 3,107
Washington - 130 274 119 57 19 13 12 14 637 - 201 697 256 113 50 21 12 10 1,359 - 142 678 431 288 177 84 69 42 1,911
West Virginia - - - - - - - - - - 25 31 470 295 138 66 21 14 10 1,044 20 - 561 195 197 173 61 102 31 1,319
Wisconsin 4 46 66 34 32 20 2 0 - 200 31 663 1,004 567 368 176 72 36 37 2,924 12 988 1,656 633 386 512 283 177 158 4,792
Wyoming - - - - - - - - - - 55 219 1,064 466 102 55 3 10 3 1,923 28 120 577 315 115 52 17 - 0 1,197
U.S. Total 150 1,331 1,872 613 231 100 45 28 25 4,245 1,720 20,703 40,491 15,041 6,958 3,393 1,486 828 798 89,700 5,818 18,499 53,180 25,980 14,801 8,576 3,715 1,810 2,497 129,059
Puerto Rico (4) - - - - - - - - - - 1 - 1 3 23 6 2 - 7 42 13 - - - - 18 30 38 132 218
Grand Total 150 1,331 1,872 613 231 100 45 28 25 4,245 1,721 20,703 40,492 15,044 6,981 3,399 1,488 828 805 89,742 5,831 18,499 53,180 25,980 14,801 8,594 3,745 1,848 2,629 129,277

October 2013
Table HM-64
3 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

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 9 165 108 39 32 17 10 6 7 384
Alaska 0 16 26 6 4 2 1 0 1 57
Arizona - 102 64 12 5 2 1 - - 187
Arkansas 3 56 67 31 20 19 11 7 7 218
California 300 37 308 191 131 72 57 40 38 875
Colorado - 34 126 52 36 12 5 2 - 268
Connecticut - 73 136 43 24 14 6 3 5 303
Delaware - 2 18 11 3 3 1 1 1 41
Dist. of Columbia - - - 1 2 4 1 - 4 12
Florida 6 381 294 36 15 8 4 2 1 741
Georgia 13 255 209 39 15 1 0 - - 518
Hawaii 0 4 10 6 6 6 5 4 7 48
Idaho - 12 41 19 7 5 2 2 2 90
Illinois - 201 319 34 42 229 1 - - 826
Indiana 71 150 129 53 30 19 12 9 9 412
Iowa - 29 65 28 13 9 7 2 1 153
Kansas - 26 84 52 41 14 1 - - 218
Kentucky 22 90 75 10 4 2 1 0 0 182
Louisiana 2 73 87 55 46 44 27 16 12 360
Maine - 12 31 24 1 0 0 - - 68
Maryland 1 101 111 30 17 11 9 7 10 296
Massachusetts 1 263 162 30 16 11 8 8 13 509
Michigan - 152 263 99 53 32 22 11 8 641
Minnesota 2 64 110 46 24 16 10 6 7 283
Mississippi - 28 106 36 15 11 1 - - 198
Missouri 3 249 170 43 21 13 6 4 4 510
Montana - 29 25 5 2 1 1 0 0 63
Nebraska - 6 26 24 7 1 0 - - 64
Nevada 4 67 41 15 15 6 3 1 1 147
New Hampshire - 50 19 2 1 - - - - 71
New Jersey 3 119 130 52 25 17 15 10 16 383
New Mexico 1 83 49 9 7 3 1 0 - 151
New York 2 82 434 138 63 47 23 26 41 855
North Carolina 6 249 260 82 37 22 9 6 3 667
North Dakota - 16 35 1 - - - - - 52
Ohio - 198 405 136 48 32 18 10 4 850
Oklahoma - 54 109 43 19 6 6 4 8 249
Oregon 4 41 81 23 12 8 4 2 1 172
Pennsylvania 6 157 318 153 59 25 13 5 3 731
Rhode Island - 12 27 5 2 2 1 0 - 48
South Carolina - 98 114 28 20 8 1 1 0 270
South Dakota - 15 35 26 2 1 0 0 - 80
Tennessee 4 270 89 23 14 7 3 2 4 413
Texas 55 160 509 246 132 74 27 9 5 1,161
Utah 3 54 93 46 15 2 0 0 - 210
Vermont - 26 11 2 1 1 0 0 - 40
Virginia 0 52 228 97 56 17 5 4 2 461
Washington 0 73 118 42 26 14 10 7 7 297
West Virginia - 35 113 24 7 3 5 0 0 187
Wisconsin 8 55 75 62 35 20 5 2 2 256
Wyoming - 8 54 32 4 2 4 1 - 104
U.S. Total 526 4,583 6,515 2,343 1,229 895 361 222 235 16,383
Puerto Rico (4) 2 - 30 74 47 44 28 7 6 236
Grand Total 528 4,583 6,545 2,417 1,276 939 389 229 241 16,619

October 2013
Table HM-64
4 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

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 1 11 18 6 3 2 1 0 0 41 38 341 394 123 67 36 22 18 21 1,023
Alaska - - - - - - - - - - 2 5 42 27 21 14 7 5 9 129
Arizona 13 94 57 7 4 2 2 1 2 168 668 122 298 153 57 39 27 22 51 769
Arkansas - 14 47 12 9 8 8 5 4 108 62 32 183 145 94 78 43 30 47 652
California 271 69 401 286 201 132 66 39 30 1,225 1,569 19 235 467 701 959 793 766 1,179 5,118
Colorado - 30 120 72 48 26 7 7 3 313 3 21 167 163 210 210 146 89 173 1,179
Connecticut - 45 93 48 26 14 6 4 4 240 - 2 46 98 120 114 88 71 151 689
Delaware - 4 15 7 2 1 1 0 0 30 - 9 60 30 18 18 8 10 21 176
Dist. of Columbia - - - 3 1 1 2 3 6 16 - - - 0 1 2 7 5 93 107
Florida 7 199 281 41 14 11 5 4 2 558 201 829 1,534 492 242 135 69 42 69 3,411
Georgia 3 49 64 20 9 1 1 - - 145 70 508 925 234 105 37 20 12 12 1,853
Hawaii 0 2 8 6 4 3 2 2 5 33 2 34 50 34 29 23 15 12 32 230
Idaho - - - - - - - - - - 24 17 90 79 62 46 33 25 86 438
Illinois - 24 40 16 6 9 7 - 0 103 - 196 677 666 489 488 208 185 233 3,141
Indiana 11 53 36 29 15 11 6 4 7 161 79 269 488 241 208 190 128 107 189 1,820
Iowa - - - - - - - - - - 56 28 146 189 144 84 55 36 87 770
Kansas 3 22 90 38 14 4 0 2 - 171 3 23 170 91 126 122 100 60 28 720
Kentucky 5 23 20 8 6 3 1 1 1 63 79 75 138 80 52 35 23 13 35 451
Louisiana 3 4 9 6 7 10 7 6 3 51 138 45 210 141 128 110 85 76 152 948
Maine 0 0 9 4 4 1 - 0 - 18 0 2 26 47 20 13 7 11 8 135
Maryland 13 78 117 37 23 16 9 5 7 292 45 80 269 159 130 99 68 56 184 1,044
Massachusetts 4 86 123 48 24 19 11 7 13 332 23 31 209 300 311 296 199 162 429 1,937
Michigan - 88 141 54 22 11 7 4 2 329 2 142 461 349 336 268 192 187 369 2,302
Minnesota 0 16 67 30 18 11 7 5 5 158 10 108 227 106 75 50 36 25 46 673
Mississippi - 9 37 11 7 3 - - - 67 - 58 314 163 123 109 62 52 100 980
Missouri 21 144 160 55 27 18 7 4 3 419 304 97 277 143 88 61 37 24 32 760
Montana - - - - - - - - - - - 8 43 32 27 20 15 13 34 190
Nebraska - 8 34 9 0 19 9 4 7 92 6 8 31 37 54 71 68 64 68 401
Nevada 0 24 12 8 7 3 1 0 0 55 21 118 102 38 22 14 7 4 9 313
New Hampshire - 26 23 1 2 0 0 - 0 52 - 29 68 36 14 21 11 8 16 203
New Jersey 2 89 170 79 43 26 17 12 16 451 68 59 241 244 256 224 176 137 398 1,736
New Mexico - - - - - - - - - - 61 49 159 128 126 74 57 34 37 664
New York 1 39 227 172 124 81 67 38 64 813 25 20 488 490 398 263 190 155 836 2,840
North Carolina 26 89 206 62 28 17 7 3 6 418 183 114 579 341 234 131 75 49 137 1,659
North Dakota - - - - - - - - - - - 5 32 46 32 29 20 10 14 188
Ohio 1 75 251 79 38 20 11 5 6 485 15 66 490 464 378 305 207 151 349 2,410
Oklahoma - 8 97 44 20 12 5 2 3 191 6 47 178 184 141 123 106 95 178 1,052
Oregon 1 11 19 15 5 3 1 1 1 56 31 66 197 138 103 75 49 36 66 729
Pennsylvania 16 57 198 124 69 39 14 4 3 509 267 95 483 448 444 374 215 177 309 2,545
Rhode Island - 7 31 30 11 4 2 1 - 86 6 - 7 19 46 69 64 52 96 354
South Carolina - 7 44 18 6 4 1 0 0 81 - 83 303 271 188 94 34 18 20 1,011
South Dakota - 2 2 6 1 1 - - - 12 4 3 19 24 16 17 19 8 12 118
Tennessee 0 68 49 16 11 5 3 2 2 157 36 434 499 194 121 91 52 38 81 1,510
Texas 146 130 555 307 219 98 41 11 11 1,372 651 260 1,329 1,107 808 558 319 225 538 5,144
Utah - 2 6 4 0 0 - - - 12 15 64 241 136 83 37 18 7 7 594
Vermont - 3 12 1 1 0 0 0 0 18 - 5 28 21 15 11 7 5 12 104
Virginia 10 27 140 58 18 6 2 1 1 252 47 15 314 341 202 195 96 78 79 1,321
Washington - 76 168 62 30 19 9 7 10 380 - 21 162 202 241 171 144 119 304 1,363
West Virginia 3 - 1 1 3 3 1 0 2 10 5 10 128 86 41 27 14 11 15 331
Wisconsin 12 47 100 79 67 30 18 5 3 349 112 70 214 294 267 407 203 139 197 1,791
Wyoming 0 - - 3 - - - - - 3 18 6 64 57 38 19 10 5 15 213
U.S. Total 573 1,860 4,298 2,024 1,199 708 374 198 235 10,896 4,957 4,746 14,037 10,098 8,250 7,054 4,649 3,740 7,661 60,235
Puerto Rico (4) 2 - - 3 9 12 11 7 8 50 13 - 4 26 53 65 74 55 111 388
Grand Total 575 1,860 4,298 2,027 1,208 720 385 205 243 10,946 4,970 4,746 14,041 10,124 8,303 7,119 4,723 3,795 7,772 60,623

(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.

 

Page last modified on November 7, 2014.
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000