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Highway Statistics 2000 OHPI > Highway Statistics > 2000 > Roadway Extent > Table HM-64

FUNCTIONAL SYSTEM LENGTH - 2000

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

OCTOBER 2001   TABLE HM-64
SHEET 1 OF 4
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 - 229 258 73 33 4 3 - - 600
Alaska - 13 333 313 234 136 1 - - 1,030
Arizona - 882 99 8 4 3 1 - - 997
Arkansas 3 2 89 72 68 98 72 22 39 462
California 6 45 539 347 198 116 48 37 22 1,352
Colorado - 1 766 - - - - - - 767
Connecticut - 1 80 13 3 2 - - 1 100
Delaware - - - - - - - - - -
Dist. of Columbia - - - - - - - - - -
Florida 30 767 66 16 49 19 5 - - 922
Georgia - 557 211 36 4 - - - - 808
Hawaii 6 - - - - - - - - -
Idaho - 189 233 84 11 1 4 3 1 526
Illinois - 99 798 330 233 47 6 - 2 1,515
Indiana - 454 341 52 5 1 - - - 853
Iowa - 67 281 164 87 36 - - - 635
Kansas - 262 321 96 3 11 - 1 - 694
Kentucky - 196 189 12 113 23 - - - 533
Louisiana 54 49 226 90 92 50 35 4 10 556
Maine - 27 225 52 7 1 1 - - 313
Maryland 1 17 163 34 9 3 - - - 226
Massachusetts - - 66 65 6 24 - - 1 162
Michigan - 67 257 185 130 55 23 14 11 742
Minnesota - 155 365 131 28 1 - - - 680
Mississippi - 85 236 108 59 43 19 8 - 558
Missouri - 3 144 364 197 89 4 5 - 806
Montana - 354 501 123 99 45 7 5 - 1,134
Nebraska - 215 72 39 58 20 19 14 - 437
Nevada - 132 260 47 20 11 7 1 1 479
New Hampshire - 26 147 4 - - - - - 177
New Jersey - 1 46 45 9 11 4 3 1 120
New Mexico - 17 112 485 205 46 14 13 1 893
New York 15 115 507 134 74 22 31 25 17 925
North Carolina - 62 289 133 66 74 8 18 1 651
North Dakota - 142 294 75 20 - - - - 531
Ohio - 361 368 86 14 1 - - - 830
Oklahoma - 84 339 148 113 14 22 1 1 722
Oregon 1 - 206 346 29 - - - - 581
Pennsylvania 5 160 708 220 76 22 6 6 3 1,201
Rhode Island - - 18 3 - - - - - 21
South Carolina - 239 302 95 31 4 - - - 671
South Dakota - 32 324 147 39 69 18 - - 629
Tennessee - 536 190 7 1 1 - - - 735
Texas 40 375 1,303 316 127 43 1 8 - 2,173
Utah - 173 367 115 48 56 9 2 - 770
Vermont - 9 230 30 4 - 1 4 2 280
Virginia - 47 627 48 3 5 - - - 730
Washington - 210 220 49 19 - 2 - - 500
West Virginia - 33 259 57 46 35 8 9 8 455
Wisconsin 1 61 322 131 41 25 - - - 580
Wyoming - 316 429 40 34 7 - - - 826
U.S. Total 162 7,867 14,726 5,568 2,749 1,274 379 203 122 32,888
Puerto Rico - - 5 31 41 17 - 3 5 102
Grand Total 162 7,867 14,731 5,599 2,790 1,291 379 206 127 32,990

 

OCTOBER 2001  TABLE HM-64
SHEET 2 OF 4
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) 1/
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
Alabama - 522 1,181 311 49 9 9 2 - 2,083 - 499 2,079 874 165 74 - - - 3,691
Alaska 455 7 113 66 39 69 7 31 21 353 - - 46 121 7 39 10 - - 223
Arizona 67 307 360 236 129 72 6 7 - 1,117 59 257 476 159 198 51 55 - - 1,196
Arkansas 64 9 644 675 365 215 106 49 16 2,079 16 - 676 810 578 800 78 55 8 3,005
California 5 33 1,021 1,137 892 443 108 53 7 3,694 - 34 1,202 1,431 1,775 989 746 443 350 6,970
Colorado - 9 1,561 308 174 124 47 7 12 2,242 - - 2,260 742 141 283 99 90 14 3,629
Connecticut - - 71 90 63 25 10 2 2 263 - - 51 75 260 83 26 - - 495
Delaware 11 6 83 80 21 2 3 3 1 199 - - 59 24 19 5 4 7 4 122
Dist. of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 112 1,680 1,450 275 122 44 24 2 3 3,600 - 753 1,298 382 61 58 25 - 7 2,584
Georgia - 2,089 665 41 2 1 - - - 2,798 - 4,301 1,274 18 9 - - - - 5,602
Hawaii 124 - - - - - - - - - 370 - - - 6 - - - - 6
Idaho - 215 846 370 204 35 11 3 3 1,687 - 178 585 362 125 19 2 1 11 1,283
Illinois - 94 911 602 505 282 147 40 32 2,613 - 403 1,167 1,377 469 979 61 156 210 4,822
Indiana 4 335 771 305 177 82 49 2 1 1,722 - 343 848 630 193 188 22 12 1 2,237
Iowa 142 369 1,142 592 506 372 252 72 40 3,345 373 817 760 608 573 243 312 132 139 3,584
Kansas 24 882 1,838 288 94 24 9 2 1 3,138 - 990 1,897 1,293 66 12 2 28 17 4,305
Kentucky - 285 1,158 322 202 58 18 1 - 2,044 - - 700 577 193 97 35 - - 1,602
Louisiana 13 49 418 231 216 153 106 27 23 1,223 - 120 549 330 309 101 93 53 70 1,625
Maine - 35 440 168 98 34 8 3 2 788 - 52 446 203 247 61 31 6 1 1,047
Maryland 11 54 339 97 24 9 6 4 2 535 - 18 535 212 126 44 5 11 - 951
Massachusetts - 1 46 124 70 38 20 9 4 312 - - 23 93 315 105 78 15 41 670
Michigan 15 470 1,117 558 297 167 66 41 33 2,749 - 878 1,666 665 414 327 59 37 67 4,113
Minnesota 9 953 1,666 700 191 47 16 3 1 3,577 - 1,115 3,638 867 485 215 81 18 12 6,431
Mississippi 43 169 874 448 234 92 17 14 8 1,856 - 21 1,195 1,330 888 257 97 45 1 3,834
Missouri 13 31 419 816 854 640 122 67 143 3,092 - - 228 969 832 427 416 367 207 3,446
Montana 6 322 1,549 492 164 32 47 1 9 2,616 - 374 1,608 542 306 71 40 48 - 2,989
Nebraska - 581 1,046 351 404 146 70 73 41 2,712 - 1,013 1,507 876 298 94 28 245 152 4,213
Nevada 19 139 622 219 224 148 25 - - 1,377 - 95 278 196 124 14 - 11 - 718
New Hampshire - 57 233 81 42 24 7 2 14 460 - 69 167 111 29 66 8 6 28 484
New Jersey 9 - 65 122 96 150 34 8 49 524 108 - 15 132 107 75 16 - 40 385
New Mexico 3 81 627 563 292 130 60 27 33 1,813 - 81 394 458 294 203 175 41 221 1,867
New York 23 102 1,139 340 138 49 22 17 26 1,833 - 81 1,874 1,288 557 167 38 116 - 4,121
North Carolina - 73 1,115 464 281 188 76 24 21 2,242 - 40 833 778 636 384 227 34 81 3,013
North Dakota - 292 1,387 722 356 151 15 6 - 2,929 - 236 896 827 449 75 30 2 - 2,515
Ohio - 373 1,397 352 71 20 11 5 3 2,232 - 140 1,959 524 177 - 27 3 - 2,830
Oklahoma - 42 988 674 328 206 91 24 19 2,372 - 3 648 1,129 508 333 89 17 21 2,748
Oregon 104 28 318 1,399 793 153 25 5 - 2,721 - - 153 644 799 366 199 32 16 2,209
Pennsylvania 8 171 999 637 359 177 74 33 23 2,473 - 51 1,435 1,479 863 808 292 43 135 5,106
Rhode Island 2 - 24 23 9 4 1 2 - 63 5 3 32 15 8 8 - 2 2 70
South Carolina - 96 957 249 107 25 14 10 5 1,463 - 292 1,531 1,020 346 348 39 13 69 3,658
South Dakota 151 80 566 488 493 364 179 126 93 2,389 170 57 679 931 726 382 226 128 52 3,181
Tennessee 169 655 861 99 44 20 2 1 1 1,683 72 46 1,747 697 324 348 180 - - 3,342
Texas 16 410 3,383 2,029 676 254 76 27 26 6,881 - 437 3,623 3,564 1,287 383 216 50 87 9,647
Utah 3 27 448 338 122 52 17 - - 1,004 - 65 349 622 312 170 2 15 - 1,535
Vermont - 1 136 50 47 35 21 17 12 319 - 3 269 180 96 57 87 27 14 733
Virginia - 64 840 420 132 69 15 13 4 1,557 - - 1,112 1,849 226 156 42 89 22 3,496
Washington - 328 1,293 342 84 24 4 4 2 2,081 54 131 933 499 259 48 6 19 29 1,924
West Virginia - 94 405 316 173 51 19 19 4 1,081 - 55 387 403 299 221 45 68 56 1,534
Wisconsin - 563 1,284 724 453 182 80 49 30 3,365 - 1,052 1,599 972 702 230 108 284 37 4,984
Wyoming - 847 936 125 34 37 - 3 3 1,985 - 135 737 327 31 34 - - 53 1,317
U.S. Total 1,625 14,030 41,752 20,459 11,450 5,728 2,152 940 773 97,284 1,227 15,238 48,423 34,215 18,217 10,498 4,457 2,769 2,275 136,092
Puerto Rico 25 - - 3 10 30 22 5 8 78 116 - - 13 9 56 30 36 28 172
Grand Total 1,650 14,030 41,752 20,462 11,460 5,758 2,174 945 781 97,362 1,343 15,238 48,423 34,228 18,226 10,554 4,487 2,805 2,303 136,264

 

FUNCTIONAL SYSTEM LENGTH - 2000

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

OCTOBER 2001  TABLE HM-64
SHEET 3 OF 4
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 - 86 115 35 35 27 7 - - 305
Alaska - 4 34 9 3 3 - - - 53
Arizona - 101 34 26 10 - - - - 171
Arkansas 1 3 34 33 41 39 19 9 10 188
California 1 32 184 160 249 245 132 63 30 1,095
Colorado - 2 182 - - - - - - 184
Connecticut - 9 97 76 31 14 10 3 6 246
Delaware 1 - 7 11 7 3 6 2 3 39
Dist. of Columbia - - 3 2 - 1 1 3 3 13
Florida 38 270 146 26 21 12 6 - - 481
Georgia 1 307 111 16 1 - - - - 435
Hawaii 49 - - - - - - - - -
Idaho - 32 33 8 4 3 6 - - 86
Illinois 1 11 218 222 127 30 39 2 - 649
Indiana - 72 165 53 12 10 4 2 - 318
Iowa - 4 44 36 31 16 10 - 6 147
Kansas 2 5 82 68 18 1 - - 1 175
Kentucky 1 67 90 28 29 3 9 3 - 229
Louisiana 51 1 73 53 32 48 20 2 2 231
Maine - - 44 9 1 - - - - 54
Maryland 14 4 110 74 23 9 10 5 3 238
Massachusetts - - 149 127 44 80 2 1 2 405
Michigan 1 20 180 107 100 43 25 13 11 499
Minnesota - 42 125 45 15 4 - - - 231
Mississippi - 2 24 45 41 10 2 3 - 127
Missouri - - 47 99 115 71 27 6 6 371
Montana - 4 27 12 9 4 1 - - 57
Nebraska - 5 16 6 10 3 2 2 - 44
Nevada - 13 26 21 6 14 - - - 80
New Hampshire - 13 30 6 - - - - - 49
New Jersey 11 2 54 123 49 43 5 7 7 290
New Mexico - 1 26 26 30 16 1 3 5 108
New York 15 39 267 156 70 57 32 27 64 712
North Carolina - 4 191 78 46 25 6 16 7 373
North Dakota - 10 15 8 7 - - - - 40
Ohio - 176 403 115 26 12 6 3 1 742
Oklahoma - 3 55 49 32 28 22 11 9 209
Oregon 4 - 29 70 36 7 - - - 142
Pennsylvania 24 29 259 142 50 21 15 6 3 525
Rhode Island 1 - 16 12 13 5 1 - - 47
South Carolina - 46 80 18 10 1 - 1 - 156
South Dakota - 1 12 6 14 12 1 2 1 49
Tennessee 5 132 132 39 17 6 5 1 - 332
Texas - 39 403 308 176 79 10 4 2 1,021
Utah - 16 58 41 31 13 7 1 - 167
Vermont - 6 20 6 8 - - - - 40
Virginia - 9 172 105 70 21 5 3 2 387
Washington 1 63 112 26 24 27 5 4 - 261
West Virginia - 10 53 14 7 5 3 1 - 93
Wisconsin 4 21 63 41 16 17 - - - 158
Wyoming - 29 25 21 8 3 - - 1 87
U.S. Total 226 1,745 4,875 2,817 1,755 1,091 462 209 185 13,139
Puerto Rico 1 - 5 46 36 36 13 5 6 147
Grand Total 227 1,745 4,880 2,863 1,791 1,127 475 214 191 13,286

 

OCTOBER 2001  TABLE HM-64
SHEET 4 OF 4
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 - 2 13 2 2 1 - - - 20 - 259 489 169 72 20 7 3 3 1,022
Alaska - - - - - - - - - - - 7 15 17 9 4 1 1 2 56
Arizona 13 11 66 28 5 3 - - - 113 753 50 86 51 48 18 7 4 3 267
Arkansas 3 1 21 13 15 19 7 5 3 84 74 - 36 116 86 102 50 47 72 509
California 24 13 190 297 368 251 98 40 63 1,320 53 23 200 522 987 1,131 1,018 851 1,154 5,886
Colorado - 3 193 22 2 - - 4 - 224 - 8 461 193 26 17 13 129 33 880
Connecticut - 7 59 75 27 16 6 4 4 198 - 1 23 97 141 126 78 54 87 607
Delaware 2 - 5 5 - 1 - - - 11 1 18 49 32 14 8 3 3 7 134
Dist. of Columbia 1 - - 1 1 5 4 1 6 18 3 - - 1 3 3 7 15 58 87
Florida 59 155 199 24 17 6 2 - 1 404 288 517 1,116 366 212 95 36 31 34 2,407
Georgia - 109 45 5 3 3 1 - - 166 13 883 676 127 37 16 3 2 1 1,745
Hawaii 34 - - - - - - - - - 135 - - - 1 1 - - 1 3
Idaho - - - - - - - - - - 5 9 46 40 54 39 24 21 24 257
Illinois - - 4 48 21 4 2 2 4 85 44 87 666 530 473 326 212 159 128 2,581
Indiana 7 16 22 31 21 17 12 2 9 130 443 50 250 220 208 143 100 37 86 1,094
Iowa - - - - - - - - - - 86 17 134 108 85 97 60 33 97 631
Kansas 9 18 45 32 11 9 8 2 1 126 427 17 75 37 33 25 13 6 11 217
Kentucky - - 43 30 12 3 2 - - 90 - 26 224 179 108 59 30 20 12 658
Louisiana 14 - - 6 1 14 6 3 5 35 99 11 124 92 91 110 85 92 148 753
Maine - - 8 3 4 1 1 1 - 18 - - 50 34 27 31 21 8 6 177
Maryland 39 8 75 50 25 20 8 5 4 195 231 14 128 127 102 77 56 42 86 632
Massachusetts 1 - 56 64 46 15 8 3 6 198 4 3 20 126 249 349 364 214 222 1,547
Michigan - 8 35 53 51 37 23 10 8 225 2 12 106 150 199 393 280 260 573 1,973
Minnesota 8 21 63 35 22 1 - - - 142 35 65 222 119 57 39 4 9 6 521
Mississippi - 6 15 11 4 5 - - - 41 22 21 159 141 129 79 34 24 76 663
Missouri 6 - 20 45 99 38 56 26 30 314 379 - 19 75 116 123 100 69 172 674
Montana - - - - - - - - - - 2 2 32 32 25 20 13 12 36 172
Nebraska - - 1 5 8 2 1 - - 17 104 11 25 35 45 47 46 37 64 310
Nevada - 4 23 14 2 1 - - - 44 - 8 64 61 27 22 15 12 17 226
New Hampshire - 10 23 3 1 - 2 - - 39 - 7 51 38 20 15 10 11 18 170
New Jersey 1 - 53 101 93 28 25 5 5 310 61 - 41 86 192 219 170 132 414 1,254
New Mexico 3 - - - - - - - - - 37 19 66 114 103 68 36 35 39 480
New York 13 27 237 127 107 113 71 47 51 780 143 9 260 372 264 211 146 145 918 2,325
North Carolina - 5 120 50 35 38 21 5 6 280 - 13 349 318 252 174 102 45 115 1,368
North Dakota - - - - - - - - - - - 4 32 35 30 21 18 12 12 164
Ohio - 49 174 83 41 35 7 1 2 392 - 70 521 428 379 239 130 95 113 1,975
Oklahoma - - 48 31 26 13 12 5 3 138 11 - 64 120 110 132 90 113 169 798
Oregon 4 - 1 37 12 - 1 - - 51 112 - 32 111 151 122 58 34 37 545
Pennsylvania 12 20 135 112 89 53 37 19 10 475 32 25 310 395 429 441 233 181 222 2,236
Rhode Island - 1 28 19 16 2 1 - - 67 2 1 54 92 85 47 30 25 17 351
South Carolina - 7 40 10 6 7 - - 1 71 - 13 195 195 104 81 42 24 50 704
South Dakota - - - - - - - - - - 111 - 4 4 6 3 1 2 1 21
Tennessee 4 14 67 16 7 8 1 3 1 117 277 143 429 194 132 69 31 21 22 1,041
Texas 92 42 351 333 223 100 36 10 14 1,109 696 69 689 937 784 570 350 266 579 4,244
Utah - 1 6 1 1 - - - - 9 11 5 87 63 43 42 13 6 8 267
Vermont - - 7 8 3 1 - 1 - 20 - - 18 17 19 17 9 6 12 98
Virginia - 5 77 81 24 12 12 6 1 218 1 13 202 241 208 144 102 66 82 1,058
Washington 5 30 155 53 34 18 10 5 4 309 805 23 96 66 51 20 11 8 18 293
West Virginia - - 1 3 3 2 - - - 9 - 6 59 56 29 28 11 9 5 203
Wisconsin 1 8 56 34 36 24 10 6 5 179 4 28 155 194 207 202 180 125 227 1,318
Wyoming - - - - 2 1 - - - 3 12 36 87 27 15 12 9 5 4 195
U.S. Total 355 601 2,780 2,001 1,526 927 491 221 247 8,794 5,518 2,603 9,296 7,900 7,277 6,397 4,462 3,561 6,301 47,797
Puerto Rico 5 - - 5 4 20 15 2 4 50 50 - - 16 36 49 37 28 26 192
Grand Total 360 601 2,780 2,006 1,530 947 506 223 251 8,844 5,568 2,603 9,296 7,916 7,313 6,446 4,499 3,589 6,327 47,989

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.

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