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Highway Statistics 2009

Functional System Length - 2009

October 2011
Table HM-64
Sheet 1 of 4

Miles By Measured Pavement Roughness - Rural

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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 0 351 110 29 19 10 7 5 5 535
Alaska - 39 352 323 206 25 59 - - 1,004
Arizona 4/ - 561 376 37 5 3 - - - 982
Arkansas 5 222 133 40 17 9 6 5 5 436
California - 213 491 266 142 77 36 29 27 1,281
Colorado - 71 276 158 68 63 33 5 8 681
Connecticut - 5 34 3 - 1 - - - 43
Delaware - - - - - - - - - -
Dist. of Columbia - - - - - - - - - -
Florida 103 458 162 16 7 2 1 0 0 646
Georgia 20 416 216 60 2 - - 1 - 695
Hawaii - - - - 6 - - - - 6
Idaho - 141 310 39 18 7 - 6 1 522
Illinois - 471 619 206 53 7 - - - 1,356
Indiana 5/ - 87 418 156 36 6 - - - 703
Iowa - 146 259 129 56 25 6 4 3 628
Kansas - 272 295 64 17 6 - 1 - 656
Kentucky - 338 188 13 13 - - - - 552
Louisiana 59 100 192 83 55 45 - 1 - 476
Maine - 96 143 44 13 3 - - - 299
Maryland 1 71 101 9 1 - - - - 182
Massachusetts - 20 62 5 4 - - - - 91
Michigan - 187 245 72 33 50 6 10 4 607
Minnesota - 94 286 92 56 46 30 14 14 633
Mississippi - 125 282 37 32 8 2 2 - 488
Missouri - 332 382 3 2 4 - - - 723
Montana - 365 695 19 31 7 8 4 - 1,129
Nebraska - 204 187 30 - - - - - 421
Nevada - 350 60 18 21 3 - - - 452
New Hampshire - 87 46 8 6 2 - 1 - 149
New Jersey - 12 30 14 8 1 - - - 65
New Mexico - 499 285 55 4 3 - - - 846
New York 2 126 502 90 42 28 29 18 4 839
North Carolina 2 190 231 62 26 11 5 1 2 528
North Dakota - 234 256 29 - - - - - 519
Ohio 0 255 381 54 18 13 2 1 0 724
Oklahoma - 259 271 87 33 12 8 8 6 684
Oregon - 25 348 162 19 - - - - 554
Pennsylvania 12 397 471 143 45 17 5 4 1 1,085
Rhode Island - 1 21 - - - - - - 22
South Carolina - 184 279 73 13 20 9 - 3 581
South Dakota 4/ - 72 340 144 40 5 - - - 601
Tennessee - 604 61 9 7 - - 4 2 687
Texas 7 693 1,042 210 65 23 7 1 0 2,039
Utah - 166 391 98 63 5 1 - - 724
Vermont - 102 139 24 8 3 - - 4 280
Virginia - 89 522 37 17 2 - - - 667
Washington - 97 205 54 76 35 - - - 467
West Virginia - 49 255 33 18 6 7 - 2 370
Wisconsin 41 115 161 80 46 23 10 1 1 437
Wyoming - 185 471 125 32 1 1 - - 815
U.S. Total 252 10,175 13,581 3,541 1,499 616 278 127 93 29,910
Puerto Rico - - 1 10 4 11 5 4 7 42
Grand Total 252 10,175 13,582 3,551 1,503 627 283 131 100 29,952

October 2011
Table HM-64
Sheet 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 1 - - 0 - - - - 1 29 990 921 161 72 31 16 7 6 2,204 227 109 978 913 855 506 71 245 83 3,759
Alaska - - - - - - - - - - 249 15 121 51 77 71 47 69 106 557 131 - 49 33 97 46 81 - - 306
Arizona 4/ - - - - - - - - - - 1 526 370 120 93 37 13 2 5 1,166 30 388 589 222 55 74 - - - 1,328
Arkansas 1 10 66 22 16 11 4 3 1 133 37 302 855 443 249 117 42 21 13 2,043 - 2 1,066 968 625 263 126 - 8 3,058
California - - - - - - - - - - 6 206 1,729 812 494 150 68 25 33 3,517 - 65 1,226 1,933 1,678 907 440 143 270 6,662
Colorado - - - - - - - - - - - 245 1,041 592 265 92 54 18 11 2,319 227 109 978 913 855 506 71 245 83 3,759
Connecticut - - - - - - - - - - - 4 56 55 25 18 4 - 1 163 - - 25 73 49 89 13 - - 249
Delaware - - - - - - - - - - - 22 109 28 3 3 - - - 165 - 15 86 6 2 - - - - 109
Dist. of Columbia - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Florida 4 92 76 5 3 0 0 - 0 176 184 1,024 1,147 190 71 32 12 8 7 2,490 - 747 1,503 81 37 32 - - - 2,400
Georgia - - - - - - - - - - 2 1,696 898 33 6 4 - 2 - 2,639 - 2,742 2,413 34 - - - - - 5,189
Hawaii - - - - - - - - - - - 1 15 16 40 22 4 9 3 110 - 17 27 74 60 68 25 3 23 297
Idaho - - - - - - - - - - 19 229 1,056 265 74 26 27 3 2 1,682 117 180 892 24 168 36 - - 2 1,302
Illinois - - - - - - - - - - - 213 947 725 295 103 41 12 13 2,349 - 329 2,610 826 340 237 - - 330 4,672
Indiana 5/ - - - - - - - - - - - 390 821 229 107 22 11 10 4 1,594 - 608 874 355 108 7 40 33 39 2,064
Iowa - - - - - - - - - - 13 419 1,075 735 516 342 202 107 68 3,464 - 917 1,071 597 345 585 224 8 163 3,910
Kansas - - - - - - - - - - 19 928 1,757 269 63 19 9 4 1 3,050 - 301 2,880 812 249 18 8 3 6 4,277
Kentucky - - - - - - - - - - - 751 1,158 332 98 14 5 1 1 2,360 - - 688 801 172 44 1 - 1 1,707
Louisiana - - - - - - - - - - 12 50 473 224 89 53 48 36 7 980 - 35 794 349 116 26 141 71 57 1,589
Maine - - - - - - - - - - - 116 345 126 80 46 23 26 25 787 - 27 368 188 190 105 48 64 28 1,018
Maryland - - - - - - - - - - 9 171 209 30 14 9 1 1 1 436 - 79 515 173 63 4 5 - - 839
Massachusetts - - - - - - - - - - - 10 44 68 30 5 9 - - 166 - 11 77 83 184 18 9 11 - 393
Michigan - - - - - - - - - - - 980 1,134 224 149 55 18 7 7 2,574 - 1,593 1,830 699 311 197 132 - 247 5,009
Minnesota - 0 0 0 0 0 - - - 1 26 659 1,466 592 422 235 133 71 27 3,603 - 1,662 2,013 1,091 997 309 265 166 135 6,638
Mississippi - - - - - - - - - - - 298 973 277 202 74 30 43 3 1,900 - 93 1,184 772 545 301 444 201 142 3,682
Missouri - - - - - - - - - - - 625 1,515 587 285 89 23 6 4 3,134 - 25 570 2,156 569 419 119 135 5 3,998
Montana - - - - - - - - - - - 471 1,531 371 166 74 5 2 1 2,621 - 304 1,936 377 312 52 - - 1 2,982
Nebraska - - - - - - - - - - - 568 1,223 428 228 144 55 32 15 2,693 - 947 1,672 803 206 417 5 115 5 4,170
Nevada - - - - - - - - - - - 1,032 368 3 1 - 2 1 1 1,408 9 300 336 25 57 9 - - 2 729
New Hampshire - 17 3 2 - - - - - 21 - 73 167 57 23 9 5 2 0 336 - 67 191 64 46 25 29 7 37 466
New Jersey - - - - - - - - - - - 9 64 73 59 27 11 9 2 254 - 13 60 71 54 69 29 - 16 312
New Mexico - - - - - - - - - - 11 955 523 216 105 23 5 2 2 1,831 117 417 612 422 186 42 56 59 42 1,836
New York - - - - - - - - - - 42 111 833 364 114 50 11 4 10 1,497 - 49 2,024 626 796 229 - 24 - 3,748
North Carolina 0 1 1 1 1 1 1 - - 4 60 320 932 312 134 61 25 14 17 1,814 - 36 1,284 823 334 100 19 - 2 2,598
North Dakota - - - - - - - - - - - 769 1,352 376 246 107 75 4 3 2,932 - 519 1,060 355 249 244 56 13 20 2,516
Ohio - - - - - - - - - - 34 344 960 371 135 71 24 21 10 1,935 - 118 1,651 300 247 120 174 43 4 2,657
Oklahoma - - - - - - - - - - - 311 980 499 275 88 74 55 44 2,326 - 162 1,100 847 242 150 42 141 - 2,684
Oregon - - - - - - - - - - - 376 1,435 568 274 103 26 7 5 2,794 - 294 881 612 345 86 101 17 24 2,360
Pennsylvania 12 69 146 50 25 27 5 2 - 322 36 184 716 395 174 62 18 4 5 1,557 - 107 1,497 1,172 655 694 184 130 106 4,545
Rhode Island - - - - - - - - - - - - 2 7 11 9 7 8 5 49 - - 3 12 23 12 10 2 3 65
South Carolina - - - - - - - - - - - 55 697 317 158 46 10 2 2 1,287 - 1 1,804 926 377 145 13 14 10 3,290
South Dakota 4/ - - - - - - - - - - - 557 1,235 325 213 82 40 41 41 2,534 - 519 880 401 317 492 499 102 130 3,340
Tennessee - - - - - - - - - - - 696 923 167 54 16 3 2 5 1,866 - 1,119 1,354 336 237 135 6 - 14 3,201
Texas - - - - - - - - - - 178 1,199 3,325 1,714 694 234 57 27 24 7,274 25 468 4,027 3,769 1,179 486 36 7 11 9,983
Utah - - - - - - - - - - - 47 470 282 144 73 38 3 3 1,060 - 58 384 348 266 300 68 1 2 1,427
Vermont - - - - - - - - - - - 15 209 37 25 20 4 5 5 320 - - 44 120 118 96 125 60 163 726
Virginia - - - - - - - - - - - 36 897 320 73 10 5 3 1 1,345 - 53 1,434 1,654 254 25 3 8 - 3,431
Washington - - - - - - - - - - - 250 1,231 312 122 34 23 8 1 1,981 - 163 660 414 460 126 26 3 - 1,852
West Virginia - - - - - - - - - - - 50 542 237 135 49 22 7 13 1,055 - 54 510 243 333 131 71 - - 1,342
Wisconsin 24 32 69 39 41 8 - - - 189 302 660 1,000 485 251 158 48 31 29 2,662 - 1,344 1,822 747 518 268 37 67 30 4,833
Wyoming - - - - - - - - - - 5 151 989 579 182 42 34 1 6 1,984 - 32 439 471 95 82 74 1 49 1,243
U.S. Total 41 221 361 120 85 47 9 4 1 847 1,273 20,107 42,839 15,998 7,813 3,260 1,466 784 600 92,867 883 17,197 52,972 30,114 16,576 9,332 3,925 2,142 2,293 134,551
Puerto Rico - - - - - - - - - - 1 - 1 3 23 6 2 - 7 42 13 - - - - 18 30 38 132 218
Grand Total 41 221 361 120 85 47 9 4 1 847 1,274 20,107 42,840 16,001 7,836 3,266 1,468 784 607 92,909 896 17,197 52,972 30,114 16,576 9,350 3,955 2,180 2,425 134,769

October 2011
Table HM-64
Sheet 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 0 162 99 33 27 19 13 9 9 370
Alaska - 11 40 22 3 1 - - 1 78
Arizona 4/ - 84 83 17 4 - - - - 188
Arkansas 10 56 73 30 17 13 8 3 3 204
California 2 36 343 277 192 138 69 78 43 1,176
Colorado - 31 101 60 49 15 5 10 - 271
Connecticut - 35 146 65 32 13 6 3 4 304
Delaware 1 2 19 10 2 3 3 1 - 40
Dist. of Columbia - - - - 5 1 2 2 3 13
Florida 106 307 230 42 20 9 5 2 2 617
Georgia 12 332 133 45 5 - - - - 515
Hawaii - - 12 3 11 9 8 3 2 48
Idaho - 25 48 9 1 1 - 3 3 90
Illinois - 110 304 206 116 41 26 19 3 825
Indiana 5/ - 27 232 126 46 19 4 8 5 467
Iowa 1 26 64 28 16 8 5 3 2 152
Kansas 1 40 77 56 36 7 1 - - 217
Kentucky - 55 79 43 19 13 1 - - 210
Louisiana 53 21 111 62 43 54 22 1 4 318
Maine - 12 35 13 6 2 - - - 68
Maryland 9 68 143 39 16 6 7 4 5 288
Massachusetts 5 191 238 34 8 4 2 - - 477
Michigan 1 94 283 141 50 43 11 7 6 635
Minnesota 3 18 112 56 41 38 12 5 - 281
Mississippi - 27 106 37 27 9 5 - 1 212
Missouri - 100 277 51 19 5 3 3 1 459
Montana - 18 39 - - 1 2 2 - 62
Nebraska - 4 40 9 5 2 2 - - 62
Nevada - 44 43 15 14 3 1 - - 120
New Hampshire - 37 33 6 0 - - - - 76
New Jersey 5 57 102 87 30 28 29 11 18 362
New Mexico - 42 86 17 8 3 - - - 156
New York 37 72 398 132 71 60 36 26 31 826
North Carolina 14 185 255 82 42 19 7 4 2 596
North Dakota - 9 34 7 1 - - - - 51
Ohio - 185 458 115 49 27 9 3 3 850
Oklahoma - 53 92 46 22 8 9 10 11 249
Oregon 2 3 92 57 16 4 - - 1 173
Pennsylvania 16 130 288 163 57 27 8 5 1 679
Rhode Island - 9 25 14 1 - - - - 49
South Carolina - 75 117 43 18 5 2 1 - 261
South Dakota 4/ - 9 29 25 6 2 5 - - 76
Tennessee - 236 116 34 12 9 3 3 3 416
Texas 10 163 497 258 149 74 26 9 1 1,177
Utah - 53 94 35 25 4 - - - 211
Vermont - 19 20 1 - - - - - 40
Virginia 4 20 203 101 68 43 8 3 2 448
Washington - 37 157 59 19 19 5 2 - 298
West Virginia - 25 117 19 8 7 6 1 - 183
Wisconsin 26 36 83 58 32 10 12 6 1 238
Wyoming - 8 37 27 13 4 6 - 1 96
U.S. Total 317 3,397 6,843 2,915 1,476 831 394 249 172 16,278
Puerto Rico 2 - 30 74 47 44 28 7 6 236
Grand Total 319 3,397 6,873 2,989 1,523 875 422 256 178 16,514

October 2011
Table HM-64
Sheet 4 of 4

Miles By Measured Pavement Roughness - Urban

STATE INTERNATIONAL ROUGHNESS INDEX (IRI) 1/
OTHER FREEWAYS AND 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 4 11 11 6 4 2 0 0 0 35 139 311 371 103 59 36 15 10 13 919
Alaska - - - - - - - - - - - 2 14 14 17 11 2 6 3 69
Arizona 4/ 1 115 45 4 7 4 1 - - 176 382 68 166 187 223 157 105 55 56 1,017
Arkansas 8 10 38 15 10 9 9 7 8 105 70 21 164 131 87 68 35 26 38 569
California 2 25 454 383 313 196 89 49 25 1,534 22 28 282 552 946 1,253 1,027 1,021 1,332 6,441
Colorado - 6 117 83 60 25 14 4 2 311 3 23 154 175 230 218 127 76 129 1,132
Connecticut - 18 110 68 21 14 4 2 2 239 - - 31 151 173 124 85 50 69 683
Delaware - 2 20 6 2 1 - - - 31 1 17 76 28 18 14 7 4 11 175
Dist. of Columbia - - - 1 5 1 - 6 4 17 - - - - 1 2 5 9 87 104
Florida 138 145 223 39 21 13 6 3 3 453 473 748 1,371 447 222 126 66 48 119 3,147
Georgia - 61 66 15 4 2 - - - 148 18 667 934 183 63 28 9 4 6 1,894
Hawaii - - 4 9 4 8 3 3 3 34 - 16 43 29 45 38 26 14 17 228
Idaho - - - - - - - - - - 87 12 131 79 46 38 15 16 13 350
Illinois - 13 26 16 19 16 3 1 4 98 - 69 504 885 492 412 262 176 339 3,139
Indiana 5/ - 23 51 32 24 10 5 8 11 164 1 131 493 334 301 224 146 112 133 1,874
Iowa - - - - - - - - - - 60 33 166 164 105 80 51 44 101 744
Kansas 1 25 95 50 10 2 4 - - 186 20 38 172 104 106 162 98 71 34 785
Kentucky - 15 41 3 7 - - - - 66 - 55 209 285 105 77 32 11 19 793
Louisiana 5 - 14 6 6 4 12 2 2 46 31 4 167 167 154 109 134 112 171 1,018
Maine - 5 8 3 3 1 - - 1 21 - 6 30 30 25 15 12 11 11 140
Maryland 8 54 137 52 22 11 4 2 4 286 6 59 245 162 133 125 82 58 211 1,075
Massachusetts 1 55 150 62 20 10 9 3 2 311 - 26 118 195 314 365 293 250 287 1,848
Michigan - 45 137 101 23 12 7 3 2 330 - 75 301 332 349 331 248 228 435 2,299
Minnesota 1 13 69 46 23 10 8 4 0 173 111 44 220 78 67 61 42 23 17 553
Mississippi - 12 34 7 5 2 6 - 1 67 - 41 295 205 137 104 80 56 104 1,022
Missouri - 60 221 79 30 8 8 2 1 409 195 62 350 246 136 74 45 27 52 992
Montana - - - - - - - - - - 3 4 39 38 30 25 13 12 23 184
Nebraska - 7 7 5 3 5 5 - - 32 13 10 40 35 74 87 53 65 89 453
Nevada 1 20 17 9 14 4 2 - 2 68 2 88 86 55 23 15 9 4 10 290
New Hampshire - 30 20 2 1 0 - - - 52 - 27 87 34 24 21 9 4 14 221
New Jersey 1 39 149 114 47 24 11 10 8 402 91 6 90 207 298 267 208 150 388 1,614
New Mexico - - 5 - - - - - - 5 41 46 186 129 119 70 47 35 34 666
New York 22 16 179 222 132 97 59 24 38 767 112 30 436 498 387 250 157 134 859 2,751
North Carolina 33 95 214 67 31 15 7 3 4 436 183 110 641 347 210 117 70 45 96 1,636
North Dakota - - - - - - - - - - - 10 22 34 36 23 15 13 16 169
Ohio 9 44 236 85 52 32 12 9 4 474 419 46 505 416 330 267 155 108 182 2,008
Oklahoma - 9 108 32 17 16 1 6 2 191 7 30 174 177 154 127 113 92 183 1,050
Oregon - 7 20 26 2 2 - - - 57 - 25 170 168 124 123 53 56 41 760
Pennsylvania 21 67 229 116 64 36 16 4 2 534 423 93 493 534 492 351 216 127 113 2,419
Rhode Island - - 35 38 10 5 - 1 - 89 - - 5 25 72 81 57 50 72 362
South Carolina - 6 54 20 6 3 1 - - 90 - 14 262 370 203 102 41 27 33 1,052
South Dakota 4/ - - 5 4 1 2 - - - 12 22 1 11 16 21 21 25 11 14 120
Tennessee - 57 56 19 8 6 2 2 3 153 - 273 595 249 166 101 50 39 76 1,549
Texas 169 102 506 315 236 97 34 11 6 1,306 1,965 209 1,207 941 662 424 208 83 85 3,818
Utah - 3 14 2 2 1 - - - 22 - 36 159 76 46 26 10 5 6 364
Vermont - - 12 3 1 - 4 - - 20 - - 18 19 11 13 10 9 21 101
Virginia 1 14 148 80 21 13 10 2 2 290 25 8 320 330 218 168 89 77 84 1,294
Washington 1 24 236 69 26 10 2 5 5 377 - 12 155 238 203 188 122 116 294 1,328
West Virginia - - 1 2 2 2 2 1 1 11 - 13 139 82 41 21 17 11 9 333
Wisconsin 38 13 100 82 75 22 8 8 0 308 716 36 196 198 204 156 127 80 152 1,149
Wyoming - - - 3 - - - - - 3 13 5 63 40 34 17 16 7 17 199
U.S. Total 467 1,268 4,422 2,401 1,393 752 368 185 152 10,942 5,654 3,688 13,106 10,522 8,736 7,312 4,940 3,879 6,718 58,901
Puerto Rico 2 - - 3 9 12 11 7 8 50 13 - 4 26 53 65 74 55 111 388
Grand Total 469 1,268 4,422 2,404 1,402 764 379 192 160 10,992 5,667 3,688 13,110 10,548 8,789 7,377 5,014 3,934 6,829 59,289

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/ Estimated from sample data. 2008 used for Alabama, Arizona, Arkansas, Florida, Kansas, Minnesota, New Hampshire, North Carolina, Ohio, Oklahoma, Pennsylvania, South Dakota, Texas, and Wisconsin.

4/ 2008 data.

5/ Excludes 823 miles of Federal agency owned roads plus 71 miles of other non-Federal agency owned roads.

 

Updated: 01/09/2012

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