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Highway Statistics 2008

Functional System Length - 2008 1/ Miles By Measured Pavement Roughness / Present Serviceability Rating

October 2009
Table HM-63
Sheet 1 of 3

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STATE RURAL MAJOR COLLECTOR
INTERNATIONAL ROUGHNESS INDEX 2/ TOTAL PRESENT SERVICEABILITY RATING 3/ TOTAL
<60 60-94 95-170 171-220 >220 >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 15 4,288 6,142 909 375 11,729 - - - - - - 11,729
Alaska 12 232 440 125 34 843 - - - - - - 843
Arizona 570 549 1,402 243 49 2,813 789 185 187 91 63 1,315 4,128
Arkansas - 1,171 6,050 2,589 - 9,810 - 687 699 691 718 2,795 12,605
California 131 2,146 5,416 2,007 1,103 10,803 880 98 658 - - 1,636 12,439
Colorado - 1,014 1,344 193 1 2,552 373 652 742 235 83 2,085 4,637
Connecticut - 42 572 165 93 872 71 7 - - - 78 950
Delaware 9 251 139 30 21 450 - - - - - - 450
Dist. of Columbia - - - - - - - - - - - - -
Florida 94 630 42 - - 766 506 548 2,046 156 96 3,352 4,118
Georgia 1,803 150 4 - 1 1,958 2,472 2,068 3,989 1,492 550 10,571 12,529
Hawaii - - 168 93 61 322 - - - - - - 322
Idaho 67 599 875 24 1 1,566 106 47 115 2,103 234 2,605 4,171
Illinois 98 - - - - 98 3,422 3,176 4,262 1,911 661 13,432 13,530
Indiana 4/ 1,364 4,367 2,995 165 - 8,891 120 227 637 202 293 1,479 10,370
Iowa 654 1,350 4,046 1,065 331 7,446 283 2,668 2,397 183 - 5,531 12,977
Kansas 651 1,845 1,956 4 - 4,456 110 2,185 15 5,284 536 8,130 12,586
Kentucky 14 1,105 5,024 37 28 6,208 - - - - - - 6,208
Louisiana 181 1,721 2,012 612 147 4,673 - - - - - - 4,673
Maine 11 1,160 1,238 463 356 3,228 - - - - - - 3,228
Maryland 26 468 704 269 66 1,533 - - - - - - 1,533
Massachusetts 748 108 130 146 11 1,143 - - - - - - 1,143
Michigan - - - - - - 4,540 1,373 5,175 1,208 2,112 14,408 14,408
Minnesota 5,332 5,473 4,165 730 - 15,700 - - - - - - 15,700
Mississippi 52 998 8,768 1,521 314 11,653 - - - - - - 11,653
Missouri 50 1,023 10,730 4,576 86 16,465 - - - - - - 16,465
Montana 185 2,493 1,884 78 91 4,731 5 - 140 163 117 425 5,156
Nebraska 867 945 940 346 7 3,105 1,306 908 1,009 217 309 3,749 6,854
Nevada 410 454 1,010 64 15 1,953 - - - - - - 1,953
New Hampshire 23 179 541 169 181 1,093 - - 1 - - 1 1,094
New Jersey - 17 472 117 4 610 117 21 217 - - 355 965
New Mexico 115 355 1,525 1,149 383 3,527 - - - - - - 3,527
New York 245 1,811 2,986 460 214 5,716 - - - - - - 5,716
North Carolina 81 3,269 4,073 69 146 7,638 31 85 225 35 - 376 8,014
North Dakota 283 998 1,546 147 6 2,980 1,166 1,123 1,269 652 81 4,291 7,271
Ohio 485 3,382 2,702 257 44 6,870 2,560 839 1,065 - - 4,464 11,334
Oklahoma 18 2,792 9,218 3,095 4,046 19,169 - - - - - - 19,169
Oregon 59 434 1,547 637 110 2,787 1,212 1,766 1,451 227 - 4,656 7,443
Pennsylvania 66 1,429 3,694 1,087 959 7,235 - - - - - - 7,235
Rhode Island - 3 65 22 4 94 8 14 8 19 4 53 147
South Carolina 165 1,944 7,431 679 266 10,485 - - - - - - 10,485
South Dakota 111 432 1,464 563 132 2,702 2,328 218 1,700 247 552 5,045 7,747
Tennessee 598 2,219 1,964 122 178 5,081 - - 28 - - 28 5,109
Texas 557 5,682 25,634 2,538 103 34,514 - - 13 - 29 42 34,556
Utah 16 241 1,442 238 22 1,959 - - 766 44 4 814 2,773
Vermont - 242 937 439 390 2,008 - - - - - - 2,008
Virginia - 323 3,183 - - 3,506 1,624 1,737 1,660 592 155 5,768 9,274
Washington - 942 2,009 300 4 3,255 1,894 861 1,663 199 239 4,856 8,111
West Virginia 97 452 2,877 999 1,226 5,651 - - - - - - 5,651
Wisconsin 369 2,467 6,750 1,169 1,725 12,480 - - - - - - 12,480
Wyoming 52 897 1,364 280 1 2,594 - 78 97 31 30 236 2,830
U.S. Total 16,684 65,092 151,620 30,990 13,335 277,721 25,923 21,571 32,234 15,982 6,866 102,576 380,297
Puerto Rico - - 9 43 103 155 7 18 53 - 11 89 244
Grand Total 16,684 65,092 151,629 31,033 13,438 277,876 25,930 21,589 32,287 15,982 6,877 102,665 380,541

October 2009
Table HM-63
Sheet 2 of 3

STATE URBAN MINOR ARTERIAL
INTERNATIONAL ROUGHNESS INDEX 2/ TOTAL PRESENT SERVICEABILITY RATING 2/ TOTAL
<60 60-94 95-170 171-220 >220 >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 73 771 897 247 94 2,082 - 35 87 - - 122 2,204
Alaska 5 30 109 30 33 207 - - - - - - 207
Arizona 8 64 211 94 22 399 768 273 283 33 - 1,357 1,756
Arkansas - 27 339 46 36 448 64 107 291 243 34 739 1,187
California 50 268 3,095 2,931 2,213 8,557 150 351 899 365 396 2,161 10,718
Colorado - 6 112 10 9 137 454 316 520 164 36 1,490 1,627
Connecticut - 40 671 152 60 923 612 67 54 5 - 738 1,661
Delaware 3 44 103 17 22 189 - - 2 - - 2 191
Dist. of Columbia - - 3 30 132 165 - - - - - - 165
Florida 63 744 724 57 50 1,638 668 797 801 80 48 2,394 4,032
Georgia 2,270 746 226 32 - 3,274 226 183 459 119 11 998 4,272
Hawaii - 4 40 27 47 118 - - - - - - 118
Idaho 2 3 40 7 9 61 51 28 118 333 36 566 627
Illinois 162 22 30 23 - 237 1,416 934 1,329 364 98 4,141 4,378
Indiana 4/ 89 388 474 104 116 1,171 294 548 397 233 105 1,577 2,748
Iowa 47 88 401 320 481 1,337 3 99 110 - - 212 1,549
Kansas - 68 333 179 134 714 47 130 20 261 179 637 1,351
Kentucky 5 205 712 78 15 1,015 - - - - - - 1,015
Louisiana 22 347 810 296 398 1,873 - - 8 - - 8 1,881
Maine 10 59 104 26 31 230 - - - - - - 230
Maryland 1 53 604 329 425 1,412 - - - - - - 1,412
Massachusetts 2,368 39 832 423 97 3,759 - - - - - - 3,759
Michigan 2 18 19 3 13 55 1,310 414 1,532 312 986 4,554 4,609
Minnesota 5/ 464 741 1,003 250 71 2,529 - - - - - - 2,529
Mississippi - 107 543 181 101 932 - - - - - - 932
Missouri 4 164 553 155 68 944 - 1 - - 984 985 1,929
Montana - 37 71 35 37 180 - - 1 - - 1 181
Nebraska - 4 42 13 17 76 183 86 291 67 18 645 721
Nevada 97 148 216 84 73 618 - - - - - - 618
New Hampshire 11 69 209 57 37 383 - - 100 7 - 107 490
New Jersey - 15 882 852 1,082 2,831 60 42 459 15 77 653 3,484
New Mexico 53 49 210 82 55 449 - - - 160 - 160 609
New York 150 721 2,735 1,068 925 5,599 - - - - - - 5,599
North Carolina 7 508 1,586 301 160 2,562 217 70 143 80 59 569 3,131
North Dakota - 6 7 5 1 19 64 23 116 40 9 252 271
Ohio 45 348 1,008 146 128 1,675 1,207 528 448 48 - 2,231 3,906
Oklahoma 23 310 909 253 535 2,030 11 - - - - 11 2,041
Oregon 3 24 45 8 16 96 540 240 216 25 4 1,025 1,121
Pennsylvania 13 354 2,302 753 536 3,958 - - - - - - 3,958
Rhode Island - 5 108 42 31 186 36 34 80 11 11 172 358
South Carolina 12 181 919 236 120 1,468 - - - - - - 1,468
South Dakota - 20 39 30 57 146 70 24 94 12 27 227 373
Tennessee 44 280 515 114 138 1,091 433 316 401 118 87 1,355 2,446
Texas 34 525 1,912 423 177 3,071 538 811 1,959 880 554 4,742 7,813
Utah 39 242 234 19 - 534 5 24 257 15 - 301 835
Vermont - 22 44 28 9 103 5 12 10 5 16 48 151
Virginia 6 179 620 113 117 1,035 261 365 491 66 13 1,196 2,231
Washington 3 127 159 18 36 343 784 389 734 200 148 2,255 2,598
West Virginia 17 87 445 91 97 737 - - - - - - 737
Wisconsin 49 515 1,477 229 219 2,489 - - - - - - 2,489
Wyoming - 3 32 5 9 49 28 30 48 8 4 118 167
U.S. Total 6,254 9,825 29,714 11,052 9,289 66,134 10,505 7,277 12,758 4,269 3,940 38,749 104,883
Puerto Rico 1 2 130 263 336 732 81 90 91 16 1 279 1,011
Grand Total 6,255 9,827 29,844 11,315 9,625 66,866 10,586 7,367 12,849 4,285 3,941 39,028 105,894

October 2009
Table HM-63
Sheet 3 of 3

STATE URBAN COLLECTOR
INTERNATIONAL ROUGHNESS INDEX 2/ TOTAL PRESENT SERVICEABILITY RATING 2/ TOTAL
<60 60-94 95-170 171-220 >220 >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 3 229 1,116 348 238 1,934 - 32 171 2 - 205 2,139
Alaska - 22 142 103 67 334 8 - 1 - - 9 343
Arizona - 36 118 154 49 357 503 220 279 90 126 1,218 1,575
Arkansas - 14 21 5 6 46 31 142 380 343 129 1,025 1,071
California 29 179 2,020 2,660 3,773 8,661 249 357 877 525 542 2,550 11,211
Colorado - 17 24 1 1 43 565 174 583 283 119 1,724 1,767
Connecticut - 29 167 119 15 330 1,232 161 124 3 1 1,521 1,851
Delaware 2 99 144 73 35 353 - 6 7 - 2 15 368
Dist. of Columbia - - 1 9 145 155 - - - - - - 155
Florida 11 56 178 3 8 256 1,573 1,702 2,759 382 140 6,556 6,812
Georgia 1,409 13 18 - - 1,440 284 147 622 43 138 1,234 2,674
Hawaii - 6 85 98 199 388 - - 1 4 - 5 393
Idaho - 3 1 2 2 8 78 39 103 353 58 631 639
Illinois 66 1 - - - 67 1,455 787 1,462 398 320 4,422 4,489
Indiana 4/ 165 129 250 42 42 628 414 428 472 357 283 1,954 2,582
Iowa 3 82 241 191 332 849 2 48 112 - - 162 1,011
Kansas - - 176 306 259 741 2 120 14 194 351 681 1,422
Kentucky - 43 779 94 50 966 - - - - - - 966
Louisiana 18 217 897 348 692 2,172 - 3 4 14 - 21 2,193
Maine 4 118 193 123 93 531 - - - - - - 531
Maryland - 10 524 372 761 1,667 - - - - - - 1,667
Massachusetts 2,685 - 230 - - 2,915 - - - - - - 2,915
Michigan - - 1 1 1 3 873 186 1,017 129 958 3,163 3,166
Minnesota 5/ 91 579 1,046 292 180 2,188 - - - - - - 2,188
Mississippi 4 20 931 238 234 1,427 - - - - - - 1,427
Missouri - 48 393 61 73 575 9 - 17 - 1,679 1,705 2,280
Montana - - - 8 6 14 - 8 130 106 63 307 321
Nebraska - - 2 3 - 5 64 59 191 82 64 460 465
Nevada - 64 246 95 204 609 - - - - - - 609
New Hampshire - 41 124 70 47 282 1 - 202 18 - 221 503
New Jersey - 3 341 598 1,204 2,146 85 141 285 97 8 616 2,762
New Mexico - 33 203 176 174 586 - - - 672 - 672 1,258
New York 9 177 2,290 909 1,617 5,002 - - - - - - 5,002
North Carolina 1 479 948 260 143 1,831 225 207 394 122 105 1,053 2,884
North Dakota - - 2 2 - 4 56 27 121 32 21 257 261
Ohio 25 134 524 106 32 821 1,996 1,069 611 129 5 3,810 4,631
Oklahoma 7 55 268 257 444 1,031 10 - - - - 10 1,041
Oregon - 3 2 9 4 18 672 535 527 79 48 1,861 1,879
Pennsylvania - 142 2,370 1,464 1,357 5,333 - - - - - - 5,333
Rhode Island - - 11 7 11 29 100 160 197 78 50 585 614
South Carolina - 119 1,154 626 534 2,433 - - - - - - 2,433
South Dakota - - 15 15 69 99 49 9 54 19 14 145 244
Tennessee - 7 57 10 30 104 651 484 616 267 106 2,124 2,228
Texas 22 491 2,699 796 320 4,328 818 1,148 3,467 1,383 885 7,701 12,029
Utah 34 31 114 1 - 180 - 12 586 55 21 674 854
Vermont - 1 1 3 1 6 10 60 47 29 61 207 213
Virginia - 20 160 16 23 219 562 543 791 156 80 2,132 2,351
Washington - 10 5 - 7 22 740 374 659 430 152 2,355 2,377
West Virginia 15 11 247 173 282 728 - - - - - - 728
Wisconsin 16 335 1,202 342 408 2,303 - - - - - - 2,303
Wyoming - 4 12 11 - 27 55 110 233 44 28 470 497
U.S. Total 4,619 4,110 22,693 11,600 14,172 57,194 13,372 9,498 18,116 6,918 6,557 54,461 111,655
Puerto Rico 1 - 46 111 201 359 163 234 389 66 28 880 1,239
Grand Total 4,620 4,110 22,739 11,711 14,373 57,553 13,535 9,732 18,505 6,984 6,585 55,341 112,894

1/ Some States elect to report International Roughness Index (IRI) for these systems; some report IRI for some sections and PSR for some sections. Some differences from other tables may be noted because these are estimated from sample data.

2/ Data are reported as the 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.

3/ The "Present Serviceability Rating" (PSR) is a subjective, primarily ride-based system adapted from the "AASHO ROAD TESTS" conducted in the late 1950's and early 1960's. Reference: Highway Special Report 61E, 1962. The PSR values range from 0.1 to 5.0; higher PSR values represent smoother riding roadways.

4/ Excludes 788 miles of Federal agency owned roads.

Updated: 01/03/2012

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United States Department of Transportation - Federal Highway Administration