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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-47 – Highway Statistics 2013

Highway Statistics 2013


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NATIONAL HIGHWAY SYSTEM LENGTH - 2013
  MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

October 2014
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 - 328 182 40 30 16 7 3 4 610 - 968 890 157 70 37 16 9 10 2,159
Alaska 0 138 370 185 133 87 41 30 39 1,024 7 46 181 111 112 113 90 82 261 997
Arizona 2 486 291 75 36 16 7 4 3 919 72 476 402 123 72 39 15 7 7 1,142
Arkansas 20 168 118 39 16 8 6 4 3 363 47 326 897 399 226 124 56 25 20 2,073
California 38 204 501 190 142 56 29 16 31 1,169 134 377 1,519 641 332 172 91 36 21 3,188
Colorado - 124 277 141 54 39 28 15 7 684 4 574 1,134 473 231 112 53 27 29 2,632
Connecticut - 17 18 7 1 1 - 0 0 43 - 14 67 43 21 9 5 2 4 166
Delaware - - - - - - - - - - - 39 104 20 3 2 1 0 0 170
Dist. of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 0 489 229 20 7 3 0 0 - 748 131 1,188 1,285 204 72 26 8 4 5 2,793
Georgia 29 230 182 50 22 12 5 3 2 507 28 972 1,595 341 105 43 16 8 17 3,096
Hawaii - - - - - - - - - - 0 0 12 18 17 11 6 3 3 70
Idaho - 247 181 43 26 11 6 4 3 522 19 345 828 303 131 54 27 14 20 1,722
Illinois - 584 607 89 7 0 - - - 1,286 - 414 1,088 423 262 118 44 6 11 2,366
Indiana 92 355 164 45 29 21 12 8 10 644 12 726 562 171 78 43 21 12 18 1,630
Iowa 35 230 217 67 31 14 6 3 6 574 827 525 784 427 277 189 114 82 165 2,562
Kansas - 447 165 21 8 6 - - - 647 - 1,615 1,230 166 30 8 2 5 - 3,057
Kentucky 12 434 116 22 8 3 1 1 1 585 38 868 694 169 66 26 10 5 8 1,845
Louisiana 38 184 146 78 58 40 12 4 4 525 10 139 453 165 101 73 41 24 31 1,028
Maine - 189 80 18 12 - - 0 - 299 1 47 342 225 93 46 17 21 3 794
Maryland 0 56 67 12 4 1 1 1 1 142 0 149 138 35 15 9 6 4 7 363
Massachusetts - 20 35 5 2 1 0 0 1 64 - 16 44 26 18 9 4 2 2 120
Michigan - 204 218 66 35 22 12 4 3 564 - 1,229 849 209 93 51 24 13 19 2,487
Minnesota 4 190 253 71 38 20 9 4 4 590 56 1,015 1,160 540 312 177 93 51 60 3,408
Mississippi - 279 141 24 12 8 4 2 2 473 0 671 752 220 121 61 25 13 11 1,873
Missouri 0 496 277 39 14 9 3 2 1 841 45 1,034 1,284 336 135 75 32 14 11 2,920
Montana - 389 578 79 27 12 5 2 3 1,095 - 713 1,355 373 167 71 38 21 35 2,773
Nebraska - 246 132 38 1 2 - - - 417 0 1,035 910 395 243 89 34 47 15 2,767
Nevada 5 289 130 12 9 10 4 2 1 457 0 841 632 57 10 3 1 0 0 1,543
New Hampshire - 104 21 8 5 3 1 1 1 142 - 138 138 42 29 19 9 6 7 388
New Jersey - 27 13 3 1 0 0 0 0 45 0 23 56 36 31 22 10 5 9 193
New Mexico 2 574 208 40 13 7 3 1 1 846 238 721 467 137 75 37 18 10 11 1,475
New York 5 206 451 123 40 19 6 3 12 860 1 121 842 364 163 69 33 9 10 1,611
North Carolina 3 341 173 34 16 10 3 1 0 578 28 522 1,132 321 146 65 30 20 22 2,258
North Dakota - 208 236 50 13 3 1 - 0 511 - 978 1,240 383 154 75 37 22 47 2,935
Ohio 0 201 360 57 14 9 0 0 1 643 0 375 901 357 106 52 23 5 4 1,825
Oklahoma - 177 334 97 33 7 2 - 0 650 4 235 958 479 311 147 48 37 37 2,253
Oregon 2 257 214 52 14 6 3 2 2 551 9 598 1,388 433 190 90 41 25 24 2,790
Pennsylvania 0 401 509 132 58 12 3 2 0 1,118 4 305 928 384 171 84 37 16 13 1,938
Rhode Island - 13 5 - - - - - - 18 - - 10 12 22 9 6 6 7 72
South Carolina - 260 253 49 17 2 0 0 0 581 - 145 861 393 175 54 6 9 4 1,648
South Dakota - 141 358 76 17 6 1 - - 599 2 1,192 3,243 1,075 629 479 226 78 50 6,970
Tennessee 5 583 71 14 7 3 2 1 1 682 21 902 713 162 66 31 14 6 5 1,899
Texas 0 788 949 206 78 34 10 5 10 2,080 1 1,762 3,476 1,544 676 304 115 55 57 7,989
Utah - 330 299 40 11 4 0 - - 684 - 146 557 280 115 50 19 5 0 1,173
Vermont 1 202 66 7 3 1 0 - - 279 1 75 145 45 21 13 9 7 8 323
Virginia - 224 315 74 28 10 3 1 2 658 1 209 913 431 184 77 33 17 15 1,879
Washington - 154 146 51 27 16 12 9 10 425 - 304 949 368 150 71 35 21 24 1,923
West Virginia - 40 259 37 30 3 - - - 369 26 28 443 286 155 88 20 11 14 1,045
Wisconsin - 200 142 53 33 19 10 4 3 464 - 836 1,105 549 330 194 82 49 59 3,205
Wyoming - 356 300 79 42 20 7 3 2 810 33 438 897 355 148 63 25 14 20 1,959
U.S. Total 294 12,811 11,355 2,756 1,261 614 271 144 173 29,385 1,799 26,417 42,551 15,203 7,460 3,883 1,769 972 1,239 99,495
Puerto Rico (3) - - 1 10 4 11 5 4 7 42 - - 1 3 13 2 - - - 19
Grand Total 294 12,811 11,356 2,766 1,265 624 276 148 180 29,426 1,799 26,417 42,553 15,206 7,473 3,886 1,769 972 1,239 99,514

NATIONAL HIGHWAY SYSTEM LENGTH - 2013
  MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

October 2014
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 - 1,297 1,072 196 100 53 24 12 14 2,769
Alaska 8 184 551 296 245 201 131 112 300 2,020
Arizona 74 962 693 198 108 56 22 11 10 2,061
Arkansas 67 494 1,015 438 242 132 62 29 24 2,436
California 172 581 2,020 831 474 228 120 52 52 4,357
Colorado 4 698 1,410 614 285 151 80 42 36 3,316
Connecticut - 31 84 50 23 10 5 3 4 209
Delaware - 39 104 20 3 2 1 0 0 170
Dist. of Columbia - - - - - - - - - -
Florida 131 1,676 1,515 224 79 29 9 4 5 3,541
Georgia 57 1,202 1,778 392 127 55 21 10 19 3,603
Hawaii 0 0 12 18 17 11 6 3 3 70
Idaho 19 593 1,009 345 157 65 34 18 23 2,243
Illinois - 998 1,694 512 269 118 44 6 11 3,653
Indiana 104 1,081 726 216 107 64 33 20 28 2,274
Iowa 863 755 1,001 494 308 203 120 85 171 3,136
Kansas - 2,062 1,394 187 38 14 2 5 - 3,704
Kentucky 50 1,302 810 191 74 29 11 6 8 2,430
Louisiana 48 323 599 243 159 113 53 28 35 1,553
Maine 1 236 422 243 105 46 17 22 3 1,093
Maryland 0 205 205 46 18 10 7 4 7 505
Massachusetts - 36 79 31 19 9 4 2 3 184
Michigan - 1,433 1,067 275 128 72 36 17 22 3,051
Minnesota 60 1,205 1,413 611 350 198 102 55 64 3,998
Mississippi 0 950 893 244 133 69 30 15 12 2,346
Missouri 45 1,530 1,561 374 149 84 35 16 12 3,761
Montana - 1,102 1,934 452 193 84 43 22 37 3,867
Nebraska 0 1,280 1,041 432 244 91 34 47 15 3,185
Nevada 5 1,130 762 68 20 12 5 2 1 2,000
New Hampshire - 242 159 50 33 22 10 6 8 530
New Jersey 0 51 69 38 32 23 11 5 9 238
New Mexico 239 1,295 675 177 87 44 21 11 12 2,321
New York 6 327 1,293 487 203 88 39 12 22 2,472
North Carolina 31 863 1,304 355 163 75 33 20 22 2,835
North Dakota - 1,186 1,477 432 167 78 38 22 47 3,447
Ohio 1 577 1,261 414 120 62 23 5 5 2,467
Oklahoma 4 413 1,292 576 344 154 50 37 37 2,903
Oregon 12 855 1,602 486 203 97 45 27 26 3,341
Pennsylvania 4 706 1,437 516 229 96 40 18 13 3,056
Rhode Island - 13 15 12 22 9 6 6 7 90
South Carolina - 405 1,114 442 192 55 7 10 4 2,229
South Dakota 2 1,333 3,601 1,151 646 485 227 78 50 7,569
Tennessee 26 1,485 784 176 73 34 16 7 5 2,581
Texas 1 2,550 4,425 1,750 754 338 126 60 67 10,070
Utah - 476 856 320 126 54 20 5 0 1,857
Vermont 1 277 210 52 24 13 9 7 8 602
Virginia 1 433 1,228 505 212 87 36 19 17 2,537
Washington - 459 1,095 420 177 87 47 30 35 2,348
West Virginia 26 68 702 323 185 91 20 11 14 1,413
Wisconsin - 1,036 1,247 602 363 214 92 53 63 3,669
Wyoming 33 794 1,197 434 190 83 32 16 22 2,769
U.S. Total 2,093 39,228 53,906 17,959 8,721 4,497 2,040 1,116 1,413 128,880
Puerto Rico (3) - - 3 13 17 13 5 4 7 61
Grand Total 2,093 39,228 53,909 17,972 8,738 4,510 2,045 1,120 1,420 128,940

NATIONAL HIGHWAY SYSTEM LENGTH - 2013
  MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

October 2014
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 - 162 107 42 31 22 12 8 8 392 - 357 405 141 77 46 30 24 35 1,116
Alaska - 13 26 8 5 2 1 1 1 57 1 3 43 28 23 17 11 8 13 146
Arizona 0 139 76 19 7 3 1 0 0 247 987 192 249 100 64 40 24 19 41 730
Arkansas 7 72 95 38 19 16 11 7 7 265 106 70 276 180 113 92 54 35 51 870
California 46 56 432 268 177 106 62 45 52 1,198 1,364 100 775 891 961 1,155 903 828 1,264 6,876
Colorado - 57 112 45 30 13 6 3 2 268 49 95 287 212 178 145 90 72 191 1,271
Connecticut - 91 122 44 21 13 5 3 4 303 - 60 193 179 155 122 72 53 97 930
Delaware - 3 19 9 4 2 2 1 1 41 - 14 91 45 22 12 9 7 14 213
Dist. of Columbia - - - 0 6 2 1 - 3 12 - - 1 1 5 8 4 10 85 115
Florida 3 375 278 46 26 10 5 2 1 744 461 1,029 1,721 503 258 137 66 43 74 3,831
Georgia 12 343 218 68 32 19 9 5 6 700 174 572 1,045 343 177 99 57 36 148 2,477
Hawaii 0 1 11 7 11 7 7 5 5 55 3 25 54 46 50 45 31 23 44 319
Idaho - 29 33 13 8 4 2 1 1 90 22 31 86 68 53 41 25 21 74 400
Illinois - 226 593 36 42 1 1 - - 899 - 185 734 723 520 462 254 177 280 3,336
Indiana 67 141 115 53 32 19 12 6 8 386 59 345 544 274 204 156 111 82 205 1,921
Iowa 25 29 51 26 16 9 5 4 7 147 408 58 143 105 74 52 33 24 49 538
Kansas - 94 70 44 16 3 0 - - 227 0 105 274 112 161 95 103 45 27 922
Kentucky 12 115 61 9 4 2 1 1 0 192 44 132 174 89 60 41 23 15 29 563
Louisiana 8 77 94 51 39 40 25 14 14 354 118 79 248 158 152 144 98 90 202 1,172
Maine - 27 32 5 4 0 0 - - 68 0 3 50 25 34 25 9 10 11 167
Maryland 0 111 137 30 18 13 8 6 10 335 6 208 403 198 141 105 72 65 307 1,499
Massachusetts 1 239 193 23 16 13 7 8 10 510 31 105 337 330 324 298 215 181 450 2,241
Michigan - 168 254 109 59 37 23 15 14 680 - 260 639 425 346 281 193 161 391 2,697
Minnesota 3 74 127 52 25 16 11 6 7 317 33 181 329 150 100 65 38 25 44 932
Mississippi - 108 68 20 13 11 4 2 1 228 3 155 314 152 104 75 54 36 110 1,000
Missouri 41 237 168 45 21 15 6 4 3 497 388 241 442 189 117 73 38 23 30 1,153
Montana - 39 46 6 3 3 1 0 1 98 6 23 67 36 25 17 11 10 22 211
Nebraska - 4 27 26 4 3 1 - - 64 110 18 59 34 52 63 61 44 34 366
Nevada 4 56 38 13 14 6 2 1 1 130 23 143 114 47 28 18 8 4 10 372
New Hampshire - 62 15 3 1 1 0 - - 83 3 97 99 37 22 15 11 11 23 315
New Jersey 3 126 128 50 26 17 13 9 15 383 32 189 448 317 284 257 180 155 484 2,313
New Mexico - 107 27 8 6 2 2 0 1 152 86 84 128 77 67 50 33 22 50 512
New York 2 88 384 144 76 64 28 26 47 857 47 74 683 613 489 374 277 204 1,000 3,716
North Carolina 13 260 244 80 40 21 8 6 3 661 177 215 807 426 275 157 76 51 123 2,131
North Dakota - 20 32 7 1 0 - 0 0 60 - 20 44 31 29 18 16 9 20 186
Ohio 0 225 459 147 56 30 8 3 3 931 13 215 860 562 445 336 233 181 366 3,196
Oklahoma - 48 130 53 23 12 4 4 9 283 33 52 276 217 157 134 110 91 170 1,208
Oregon 1 59 78 15 9 6 4 2 2 176 9 98 225 144 101 79 51 40 83 822
Pennsylvania 4 164 325 151 58 23 9 4 1 735 244 123 691 632 542 415 268 190 297 3,158
Rhode Island - 19 25 6 2 0 - 0 - 52 4 7 39 46 54 70 61 44 99 420
South Carolina - 94 122 29 16 6 2 - - 270 - 87 357 289 184 109 34 18 25 1,104
South Dakota 0 12 38 21 7 1 0 0 - 80 26 16 37 39 26 29 11 1 1 159
Tennessee 13 264 85 25 13 6 4 3 3 404 33 464 546 226 150 100 63 45 88 1,682
Texas - 295 517 220 136 78 34 30 24 1,335 217 616 1,944 1,176 851 636 390 320 891 6,824
Utah - 70 113 50 18 2 0 0 - 253 7 77 262 151 89 46 23 9 11 668
Vermont 0 23 14 1 1 1 0 - 0 40 4 5 35 15 11 11 7 5 11 99
Virginia 0 90 177 72 48 34 18 10 10 461 59 56 389 269 180 149 97 74 79 1,293
Washington - 94 134 47 28 15 9 6 6 339 - 124 377 261 237 195 160 148 371 1,874
West Virginia - 17 128 24 10 2 3 2 0 186 15 3 112 81 58 34 17 17 21 341
Wisconsin - 75 69 63 34 18 8 7 5 279 - 155 380 394 375 301 202 151 359 2,316
Wyoming - 24 45 18 8 3 3 2 1 104 5 17 78 43 26 18 12 8 21 221
U.S. Total 267 5,321 6,892 2,390 1,322 753 391 261 297 17,627 5,411 7,582 18,915 11,832 9,231 7,462 5,029 3,968 8,925 72,943
Puerto Rico (3) 2 - 30 74 47 44 28 8 6 238 2 - 2 7 11 33 21 11 25 109
Grand Total 268 5,321 6,922 2,464 1,369 797 420 269 302 17,865 5,413 7,582 18,917 11,839 9,241 7,494 5,050 3,979 8,949 73,052

NATIONAL HIGHWAY SYSTEM LENGTH - 2013
  MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

October 2014
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 - 519 512 183 109 68 42 31 43 1,508
Alaska 1 17 69 36 28 20 12 8 14 203
Arizona 987 332 325 120 71 43 25 20 41 977
Arkansas 113 142 371 218 132 108 65 43 58 1,135
California 1,410 155 1,207 1,159 1,138 1,261 965 873 1,316 8,075
Colorado 49 151 399 257 208 158 97 75 193 1,538
Connecticut - 151 315 223 176 134 77 55 101 1,233
Delaware - 17 110 54 26 14 11 8 15 253
Dist. of Columbia - - 1 2 10 9 5 10 89 126
Florida 464 1,404 1,999 548 284 148 72 45 75 4,575
Georgia 186 915 1,263 411 208 118 66 41 154 3,177
Hawaii 3 27 65 53 61 53 38 28 49 374
Idaho 22 59 119 81 61 44 27 22 75 489
Illinois - 411 1,327 759 562 463 254 177 280 4,235
Indiana 126 486 660 327 236 174 123 88 213 2,307
Iowa 434 87 194 131 89 62 38 28 56 685
Kansas 0 199 344 156 177 97 103 45 27 1,149
Kentucky 56 247 235 98 64 42 24 16 29 755
Louisiana 126 156 342 210 191 185 123 103 216 1,525
Maine 0 29 82 30 38 25 9 10 11 235
Maryland 6 319 540 229 160 119 80 71 317 1,834
Massachusetts 32 345 530 354 340 311 222 189 460 2,751
Michigan - 427 893 534 405 318 217 176 406 3,377
Minnesota 36 255 456 202 124 82 49 31 50 1,249
Mississippi 3 263 382 171 117 87 58 38 112 1,228
Missouri 430 478 610 234 138 87 44 27 32 1,650
Montana 6 62 112 42 28 20 12 11 22 309
Nebraska 110 22 85 60 56 66 62 44 34 430
Nevada 27 198 152 60 42 23 11 5 10 502
New Hampshire 3 159 114 40 23 16 11 11 23 398
New Jersey 35 315 576 366 310 274 193 164 498 2,696
New Mexico 86 190 155 85 74 52 35 22 51 664
New York 49 162 1,068 757 565 438 305 230 1,047 4,572
North Carolina 190 475 1,051 506 315 178 84 57 126 2,792
North Dakota - 40 75 37 29 19 16 9 20 246
Ohio 13 439 1,319 709 501 365 241 184 368 4,127
Oklahoma 33 101 406 270 180 146 114 96 179 1,491
Oregon 9 158 303 160 111 86 56 42 85 998
Pennsylvania 248 287 1,016 783 601 438 277 194 298 3,893
Rhode Island 4 26 64 52 57 70 61 44 99 473
South Carolina - 181 480 319 201 115 36 18 25 1,374
South Dakota 26 28 74 60 34 30 11 2 1 240
Tennessee 46 728 631 252 163 106 67 48 91 2,086
Texas 217 911 2,462 1,397 987 714 424 350 915 8,159
Utah 7 147 375 201 107 47 23 9 11 921
Vermont 4 28 49 16 12 12 7 5 11 139
Virginia 59 146 566 342 228 184 115 84 90 1,754
Washington - 218 511 308 266 210 169 154 376 2,213
West Virginia 15 20 240 105 68 36 20 19 21 527
Wisconsin - 230 449 457 409 318 211 157 364 2,595
Wyoming 5 40 123 61 34 21 15 9 22 325
U.S. Total 5,678 12,903 25,807 14,222 10,552 8,215 5,420 4,229 9,221 90,570
Puerto Rico (3) 4 - 32 82 58 77 49 19 31 347
Grand Total 5,681 12,903 25,839 14,303 10,610 8,292 5,470 4,248 9,252 90,917

(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.

 

Page last modified on April 1, 2019
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000