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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-63 - Highway Statistics 2016

Highway Statistics 2016


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Functional System Length - 2016 (1)
    Miles by Measured Pavement Roughness / Present Serviceability Rating

September 18, 2017
Table HM-63
Sheet 1 of 3

STATE RURAL MAJOR COLLECTOR
INTERNATIONAL ROUGHNESS INDEX (2) PRESENT SERVICEABILITY RATING (3) TOTAL
<60 60-94 95-170 171-220 >220 TOTAL >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 1,322 4,677 4,377 761 764 11,900 - - - - - - 11,900
Alaska 97 243 199 71 115 725 - - - - - - 725
Arizona 557 1,068 1,398 233 122 3,378 - 1 1 0 9 11 3,390
Arkansas - - - - - - - - 816 83 374 1,272 1,272
California 108 1,448 4,282 1,585 3,383 10,807 - - - - - - 10,807
Colorado 44 1,043 2,398 520 426 4,431 23 - - - - 23 4,454
Connecticut 11 189 414 113 129 857 - - - - - - 857
Delaware 63 150 176 25 14 428 - - - - - - 428
Dist. of Columbia - - - - - - - - - - - - -
Florida 589 908 472 41 21 2,031 339 625 933 98 - 1,994 4,025
Georgia 207 1,997 1,648 90 28 3,970 - - - - - - 3,970
Hawaii 0 9 111 51 49 220 - - - - - - 220
Idaho 133 356 199 16 6 711 568 646 1,565 750 276 3,806 4,517
Illinois 561 4,673 3,129 481 8 8,853 - - - - - - 8,853
Indiana 984 2,219 2,040 521 156 5,919 - - - - - - 5,919
Iowa - 0 0 - - 0 - - - - - - 0
Kansas 826 2,281 1,418 91 20 4,636 327 1,843 4,108 1,025 487 7,791 12,427
Kentucky 120 1,617 2,854 272 103 4,966 - - - - - - 4,966
Louisiana 316 1,492 1,670 558 658 4,693 - - - - - - 4,693
Maine 44 417 1,688 648 425 3,222 - - - - - - 3,222
Maryland 178 397 556 83 67 1,282 - - - - - - 1,282
Massachusetts - 103 97 37 41 277 53 - 195 - 299 547 824
Michigan - - - - - - - - - - - - -
Minnesota 1,372 3,809 3,547 574 355 9,658 - - - - - - 9,658
Mississippi 161 1,819 5,424 2,245 2,007 11,657 - - - - - - 11,657
Missouri 93 2,453 8,799 3,457 1,565 16,366 - - - - - - 16,366
Montana 397 1,420 2,212 512 255 4,796 - - - - - - 4,796
Nebraska 869 811 554 157 31 2,422 1,014 1,040 863 278 361 3,556 5,978
Nevada 167 536 1,074 196 76 2,050 - - - - - - 2,050
New Hampshire 95 225 388 99 234 1,041 - - 0 - - 0 1,042
New Jersey - 21 395 31 - 446 47 124 153 5 - 328 775
New Mexico 101 306 2,010 1,103 940 4,461 - - 2 - - 2 4,463
New York 264 1,218 1,854 350 159 3,845 - - - - - - 3,845
North Carolina 193 2,279 2,702 430 339 5,942 132 3 4 - 98 237 6,179
North Dakota - 0 1 - 0 2 - - 291 71 - 362 364
Ohio 1,798 3,904 2,821 375 179 9,077 61 22 624 773 479 1,959 11,036
Oklahoma 110 3,831 9,573 1,441 3,347 18,303 296 - 55 165 322 839 19,142
Oregon 39 124 822 365 221 1,570 1,680 2,237 1,472 115 264 5,768 7,338
Pennsylvania 275 1,668 2,831 1,077 1,415 7,266 - - - - - - 7,266
Rhode Island - 5 75 41 46 167 - - - - - - 167
South Carolina 908 2,393 4,769 1,206 739 10,015 - - - - - - 10,015
South Dakota 251 1,315 3,173 962 491 6,192 413 7 1,081 5 3 1,509 7,702
Tennessee 697 1,582 2,080 224 79 4,661 22 - 294 23 - 339 5,000
Texas 5 131 106 - - 242 2,169 2,064 6,863 5,101 3,230 19,426 19,668
Utah 56 469 1,493 447 192 2,657 - 44 176 - - 220 2,877
Vermont 53 373 761 303 391 1,882 - - - - - - 1,882
Virginia 52 1,295 3,721 1,444 902 7,413 - - - - - - 7,413
Washington 55 1,116 4,618 1,516 711 8,017 - - - - - - 8,017
West Virginia 6 794 2,610 787 875 5,072 106 10 235 62 35 449 5,521
Wisconsin 1,411 2,665 4,681 1,633 1,617 12,008 - - - - - - 12,008
Wyoming 245 1,183 861 175 129 2,594 3 148 - - - 151 2,745
U.S. Total 15,833 63,031 103,082 27,349 23,835 233,130 7,254 8,812 19,731 8,555 6,238 50,590 283,720
Puerto Rico (4) - - 10 75 119 203 4 3 22 - - 30 233
Grand Total 15,833 63,031 103,092 27,424 23,954 233,333 7,258 8,815 19,753 8,555 6,238 50,620 283,953

September 18, 2017
Table HM-63
Sheet 2 of 3

STATE URBAN MINOR ARTERIAL
INTERNATIONAL ROUGHNESS INDEX (2) PRESENT SERVICEABILITY RATING (3) TOTAL
<60 60-94 95-170 171-220 >220 TOTAL >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 234 672 827 218 252 2,203 - - - - - - 2,203
Alaska 18 46 60 19 16 158 - - - - - - 158
Arizona 37 190 715 211 157 1,310 - - 0 - 3 3 1,313
Arkansas - 1 19 14 7 41 17 51 345 269 51 733 774
California 62 938 4,147 2,216 3,045 10,408 - - - - - - 10,408
Colorado 12 167 714 409 494 1,796 2 - - - - 2 1,799
Connecticut 29 232 801 322 289 1,674 - - - - - - 1,674
Delaware 12 56 81 27 28 204 - - - - - - 204
Dist. of Columbia - - 7 18 136 161 - - - - - - 161
Florida 299 953 939 164 127 2,483 356 456 719 113 83 1,726 4,209
Georgia 362 799 575 85 73 1,893 - - - - - - 1,893
Hawaii 4 25 74 38 51 192 - - - - - - 192
Idaho 4 18 29 7 3 62 187 122 152 83 21 564 625
Illinois 73 585 2,211 839 434 4,143 - - - - - - 4,143
Indiana 308 519 932 325 314 2,398 - - - - - - 2,398
Iowa - 1 1 0 1 3 - - - - - - 3
Kansas 74 226 566 232 250 1,347 - - - - - - 1,347
Kentucky 78 299 556 150 85 1,167 - - - - - - 1,167
Louisiana 40 312 716 308 381 1,759 - - 0 - - 0 1,759
Maine 0 33 137 55 36 262 - - - - - - 262
Maryland 82 266 726 219 266 1,559 - - - - - - 1,559
Massachusetts 10 113 594 293 239 1,250 226 - 1,124 - 948 2,298 3,549
Michigan - - - - - - - 7 - 1 0 8 8
Minnesota 78 83 101 31 42 336 - - - - - - 336
Mississippi 39 171 415 205 250 1,080 - - - - - - 1,080
Missouri 31 269 959 353 347 1,960 - - - - - - 1,960
Montana 7 67 108 46 62 290 - - - - - - 290
Nebraska 13 29 73 29 35 178 172 141 148 43 25 529 707
Nevada 130 249 346 86 67 878 - - - - - - 878
New Hampshire 37 106 189 67 87 485 - - 5 - - 5 490
New Jersey 62 121 693 640 692 2,208 388 240 686 71 15 1,401 3,609
New Mexico 11 106 355 113 148 733 - - - - - - 733
New York 48 598 1,197 435 676 2,954 - 1 0 - - 1 2,955
North Carolina 30 844 1,646 392 242 3,154 21 1 - - - 22 3,176
North Dakota - - 1 - - 1 5 - 43 1 - 49 49
Ohio 130 671 1,075 378 421 2,675 313 169 427 140 243 1,293 3,967
Oklahoma 6 87 804 388 574 1,859 51 89 165 44 8 357 2,217
Oregon 23 50 70 25 14 183 407 337 322 24 12 1,101 1,284
Pennsylvania 87 645 1,624 815 782 3,953 - - - - - - 3,953
Rhode Island - 18 136 83 102 339 - - - - - - 339
South Carolina 46 303 1,031 214 143 1,736 - - - - - - 1,736
South Dakota 2 30 164 116 98 411 1 - 13 1 - 15 426
Tennessee 221 415 266 79 100 1,080 170 248 715 135 50 1,318 2,398
Texas 2 27 27 9 27 92 1,268 963 3,172 662 909 6,974 7,066
Utah 7 70 192 63 54 386 - 34 245 - 4 283 669
Vermont 8 57 59 11 11 147 - - - - - - 147
Virginia 8 332 1,255 400 239 2,234 - - - - - - 2,234
Washington 64 384 1,170 468 630 2,716 - - - - - - 2,716
West Virginia 4 147 346 107 85 691 6 3 20 1 1 31 722
Wisconsin 35 232 732 487 1,123 2,609 - - - - - - 2,609
Wyoming 6 31 41 9 12 98 49 56 21 12 11 149 247
U.S. Total 2,876 12,594 30,502 12,218 13,749 71,938 3,639 2,917 8,323 1,599 2,385 18,864 90,802
Puerto Rico (4) 0 0 105 271 398 773 77 70 73 14 - 233 1,006
Grand Total 2,876 12,594 30,607 12,488 14,146 72,712 3,716 2,987 8,396 1,613 2,385 19,097 91,808

September 18, 2017
Table HM-63
Sheet 3 of 3

STATE URBAN MAJOR AND MINOR COLLECTOR
INTERNATIONAL ROUGHNESS INDEX (2) PRESENT SERVICEABILITY RATING (3) TOTAL
<60 60-94 95-170 171-220 >220 TOTAL >3.9 3.5-3.9 2.6-3.4 2.1-2.5 <=2.0 TOTAL
Alabama 109 736 1,580 555 722 3,702 - - - - - - 3,702
Alaska 17 70 106 38 54 286 - - - - - - 286
Arizona 24 46 328 171 268 836 - - - - - - 836
Arkansas - - 2 1 0 3 12 69 681 377 190 1,329 1,332
California 25 530 3,418 2,619 5,202 11,794 - - - - - - 11,794
Colorado 15 155 745 411 564 1,890 2 - - 0 - 2 1,893
Connecticut 10 100 886 472 660 2,128 - - - - - - 2,128
Delaware 11 88 172 63 80 412 - - - - - - 412
Dist. of Columbia - - 3 10 139 153 - - - - - - 153
Florida 118 1,057 2,191 679 713 4,758 674 1,018 1,479 145 215 3,532 8,290
Georgia 22 150 113 4 5 292 - - - - - - 292
Hawaii 3 11 157 114 165 451 - - - - - - 451
Idaho 0 2 2 0 1 5 184 95 262 83 34 658 663
Illinois 108 729 1,711 1,611 1,606 5,766 - - - - - - 5,766
Indiana 33 141 168 39 48 429 - - - - - - 429
Iowa - - - 0 - 0 - - - - - - 0
Kansas 32 148 717 351 660 1,908 - - 17 - 2 19 1,927
Kentucky 22 186 770 262 233 1,472 - - - - - - 1,472
Louisiana 23 251 718 359 530 1,882 - 1 2 - 10 13 1,895
Maine 0 51 279 167 135 633 - - - - - - 633
Maryland 21 230 843 428 562 2,084 - - - - - - 2,084
Massachusetts - 26 82 37 23 168 473 - 1,273 - 1,000 2,746 2,913
Michigan - - - - - - - - 0 0 - 1 1
Minnesota 10 13 26 13 11 73 - - - - - - 73
Mississippi 2 90 469 318 685 1,564 - - - - - - 1,564
Missouri - 124 868 421 616 2,029 - - - - - - 2,029
Montana 6 32 117 67 202 425 - - - - - - 425
Nebraska 0 1 5 1 3 10 151 67 170 92 40 519 529
Nevada 31 178 437 223 193 1,062 - - - - - - 1,062
New Hampshire 1 88 205 90 145 529 - - 7 - - 7 536
New Jersey 4 34 377 587 971 1,973 200 123 732 254 33 1,342 3,315
New Mexico 49 149 442 193 297 1,131 0 - - - - 0 1,131
New York 16 460 1,867 1,181 1,438 4,961 - - 0 - - 0 4,962
North Carolina 19 667 1,946 420 349 3,401 7 8 3 - - 18 3,419
North Dakota - - - - - - - - 9 - - 9 9
Ohio 66 655 1,609 546 872 3,748 527 268 618 292 506 2,211 5,959
Oklahoma 8 16 359 209 642 1,233 56 69 230 25 15 395 1,628
Oregon 3 27 23 11 18 81 755 885 730 127 34 2,533 2,614
Pennsylvania 30 244 2,198 1,371 1,853 5,696 - - - - - - 5,696
Rhode Island - 6 166 125 249 547 - - - - - - 547
South Carolina 77 358 1,249 515 576 2,776 - - - - - - 2,776
South Dakota 0 5 87 89 130 310 - - 19 2 - 21 332
Tennessee 80 94 58 12 2 247 422 632 1,531 496 164 3,244 3,491
Texas - 8 18 40 89 154 2,067 2,589 5,576 1,842 2,311 14,385 14,539
Utah 3 63 270 205 270 810 - 119 707 2 8 836 1,646
Vermont 1 43 98 41 54 237 - - - - - - 237
Virginia 3 177 1,157 494 335 2,167 - - - - - - 2,167
Washington 7 198 1,063 538 1,097 2,903 - - - - - - 2,903
West Virginia 1 66 305 170 261 804 10 63 29 30 17 149 953
Wisconsin 39 62 554 493 1,480 2,627 - - - - - - 2,627
Wyoming 5 60 38 3 7 112 166 128 109 59 15 476 589
U.S. Total 1,056 8,626 31,000 16,767 25,215 82,663 5,707 6,134 14,184 3,827 4,594 34,446 117,109
Puerto Rico (4) - - 45 128 286 459 139 160 403 40 - 743 1,202
Grand Total 1,056 8,626 31,045 16,895 25,500 83,122 5,846 6,294 14,587 3,867 4,594 35,189 118,312

(1) Some States elect to report International Roughness Index (IRI) for these systems; some report IRI for some sections and PSR for some sections. PSR is ignored for sections coded with both IRI and PSR. Some differences from other tables may be noted because these are estimated from sample data. Excludes unpaved mileage. Includes structures.

(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) 2009 data used.

 

Page last modified on June 19, 2015
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