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Highway Statistics 2005 OHPI > Highway Statistics > 2005 > Roadway Extent, Characteristics, and Performance > Table HM-64

FUNCTIONAL SYSTEM LENGTH - 2005

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

OCTOBER 2006 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 - 32 359 55 26 10 33 17 19 551
Alaska - 17 287 268 252 147 5 17 21 1,014
Arizona 2 738 221 15 5 - - - - 979
Arkansas 1 202 182 43 17 9 9 3 - 465
California - 278 531 241 169 56 14 22 13 1,324
Colorado - 84 290 177 89 38 7 - 1 686
Connecticut - 1 34 7 1 1 - - - 44
Delaware - - - - - - - - - -
Dist. of Columbia - - - - - - - - - -
Florida 5 462 278 4 - - - - - 744
Georgia - 445 247 23 1 - - - - 716
Hawaii - - - 1 5 - - - - 6
Idaho - 44 352 78 42 3 - 2 - 521
Illinois - 334 699 288 87 52 - - 3 1,463
Indiana 4/ - 149 542 114 33 15 - - - 853
Iowa - 95 249 176 73 22 8 2 3 628
Kansas 10 82 415 97 52 - - - - 646
Kentucky 1 212 220 80 28 12 - - - 552
Louisiana 56 136 138 105 60 31 7 - - 477
Maine - 92 160 30 15 1 - - - 298
Maryland 1 22 124 28 6 1 1 - - 182
Massachusetts - 21 30 23 - 16 - - - 90
Michigan - 48 208 135 115 56 29 11 7 609
Minnesota - 28 340 144 134 34 - - - 680
Mississippi - 66 348 37 22 1 - 5 6 485
Missouri - 202 367 130 75 20 3 2 - 799
Montana - 379 658 38 29 19 5 1 - 1,129
Nebraska - 129 224 29 16 17 9 - - 424
Nevada - 380 48 16 6 - - - - 450
New Hampshire - 29 121 - - 1 - - - 151
New Jersey - 5 18 20 11 4 4 2 - 64
New Mexico - 549 257 33 3 3 - - - 845
New York 5/ 15 99 426 139 82 61 41 36 47 931
North Carolina - 26 312 65 47 57 5 3 6 521
North Dakota - 166 231 100 13 11 - - - 521
Ohio - 300 351 43 25 5 - - - 724
Oklahoma - 174 328 76 81 17 7 1 - 684
Oregon - 80 414 58 2 - - - - 554
Pennsylvania 1 297 452 203 79 23 7 5 3 1,069
Rhode Island - 1 21 - - - - - - 22
South Carolina - 180 262 96 30 9 - - - 577
South Dakota - 45 324 216 20 6 - - - 611
Tennessee - 589 77 9 16 - - - - 691
Texas - 478 1,254 322 97 38 1 1 - 2,191
Utah - 154 384 105 36 11 16 11 3 720
Vermont - 148 96 27 4 1 - 4 - 280
Virginia - 88 547 12 15 3 - - - 665
Washington - 154 156 64 43 37 10 3 - 467
West Virginia - 85 212 33 37 21 - 1 8 397
Wisconsin - 80 244 103 28 13 1 9 1 479
Wyoming - 265 438 93 3 13 10 - 1 823
U.S. Total 92 8,670 14,476 4,199 2,030 895 232 158 142 30,802
Puerto Rico - - 1 1 9 17 3 1 - 32
Grand Total 92 8,670 14,477 4,200 2,039 912 235 159 142 30,834
OCTOBER 2006 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 - 235 1,031 521 265 59 16 6 12 2,145 - 120 2,212 952 298 117 70 1 16 3,786
Alaska 155 19 153 107 39 109 38 21 165 651 172 - 34 59 - 91 60 - 27 271
Arizona 11 556 345 157 52 31 15 - - 1,156 34 386 558 195 135 26 28 - - 1,328
Arkansas 7 61 913 736 297 138 50 19 11 2,225 - 1 1,055 748 471 443 187 44 25 2,974
California 5 458 1,800 783 391 115 21 10 18 3,596 23 110 1,962 2,218 1,099 654 306 80 274 6,703
Colorado 7 236 1,112 439 348 81 50 27 28 2,321 - 174 1,519 1,188 533 274 63 - - 3,751
Connecticut - 5 44 52 45 11 2 3 1 163 - - 35 43 79 77 13 - - 247
Delaware - 4 94 50 13 1 - - - 162 - 1 57 39 9 1 2 4 1 114
Dist. of Columbia - - - - - - - - - - - - - - - - - - - -
Florida 6 817 1,735 210 49 14 15 8 - 2,848 7 416 1,740 234 - - - - 5 2,395
Georgia - 1,551 960 88 7 - - - - 2,606 - 1,724 3,068 265 186 - - - - 5,243
Hawaii - - 12 28 34 25 7 4 - 110 - - 7 95 58 112 11 14 1 298
Idaho 15 64 1,034 341 208 48 8 3 - 1,706 18 88 818 248 119 47 2 - - 1,322
Illinois - 128 890 628 481 199 118 57 19 2,520 - 861 1,834 821 564 217 - 424 - 4,721
Indiana 4/ - 324 790 350 138 94 33 10 3 1,742 - 414 897 426 342 102 20 37 - 2,238
Iowa 49 403 1,017 800 460 331 217 99 85 3,412 27 626 1,170 321 670 578 58 274 201 3,898
Kansas 55 737 1,948 276 37 13 4 3 1 3,019 17 465 3,182 424 172 7 - 20 1 4,271
Kentucky - 437 1,305 374 195 19 4 1 - 2,335 - - 740 696 259 28 5 - - 1,728
Louisiana 24 93 394 186 143 53 54 32 15 970 - 157 712 189 209 229 28 17 52 1,593
Maine - 99 364 146 84 47 20 10 19 789 - 60 320 236 123 122 64 34 56 1,015
Maryland 9 79 248 66 25 11 1 1 1 432 - 23 479 182 61 34 20 41 - 840
Massachusetts - - 45 62 44 13 1 1 - 166 - 26 100 66 142 20 44 4 4 406
Michigan 2 565 1,057 513 201 173 53 12 9 2,583 472 863 1,898 885 439 290 5 1 - 4,381
Minnesota - 902 1,431 730 422 70 17 5 5 3,582 - 846 2,113 1,598 1,310 602 88 15 8 6,580
Mississippi - 217 950 292 252 103 18 22 33 1,887 - 81 1,268 928 516 306 400 - 152 3,651
Missouri 6 296 1,206 716 473 269 126 74 22 3,182 - - 1,246 1,816 684 121 275 11 39 4,192
Montana - 486 1,581 369 147 21 10 2 1 2,617 - 316 1,931 480 170 38 1 - 52 2,988
Nebraska 461 211 908 534 215 195 88 71 15 2,237 - 731 1,586 822 529 143 139 31 185 4,166
Nevada - 1,110 282 11 1 - 1 - - 1,405 30 323 298 17 - - - - - 638
New Hampshire - 30 179 80 20 15 14 5 15 358 - 45 266 113 21 12 - - 8 465
New Jersey 8 - 47 96 42 39 13 8 2 247 - 10 23 106 62 72 6 11 21 311
New Mexico 6 915 572 223 78 31 6 4 2 1,831 13 491 702 198 276 48 75 - 129 1,919
New York 5/ 24 95 902 351 171 113 88 35 72 1,827 - - 2,351 877 612 114 91 30 50 4,125
North Carolina - 123 1,095 347 196 110 51 29 33 1,984 - - 840 822 436 292 165 22 85 2,662
North Dakota - 400 1,182 554 384 318 53 13 30 2,934 - 230 927 378 609 320 34 15 - 2,513
Ohio - 323 1,019 357 174 74 11 6 6 1,970 - 474 1,299 580 201 79 - 16 7 2,656
Oklahoma 11 182 942 555 290 187 95 33 25 2,309 - 233 1,253 537 393 72 93 88 18 2,687
Oregon 10 228 1,059 863 463 109 28 3 22 2,775 - 310 694 694 401 143 66 42 12 2,362
Pennsylvania 3 199 818 486 240 128 43 16 10 1,940 - 98 1,447 1,151 704 714 193 97 100 4,504
Rhode Island - - 2 7 10 9 7 8 5 48 - - 3 11 23 14 10 2 3 66
South Carolina - 64 829 237 117 25 33 4 1 1,310 - 200 1,643 963 372 94 5 - 9 3,286
South Dakota 62 182 1,085 387 315 183 166 99 58 2,475 217 198 737 106 761 549 361 242 176 3,130
Tennessee - 739 831 151 31 7 6 4 3 1,772 - 1,146 1,367 405 297 22 - 13 57 3,307
Texas 5 606 3,494 1,996 593 111 44 25 10 6,879 - 607 4,193 3,704 882 114 118 5 - 9,623
Utah - 75 501 253 97 53 9 1 - 989 9 118 461 613 214 36 - - - 1,442
Vermont - 36 173 37 31 16 11 4 12 320 - 25 157 190 160 95 52 16 33 728
Virginia - 94 828 360 85 56 14 2 11 1,450 9 15 1,401 1,562 263 112 100 - - 3,453
Washington - 325 1,165 302 119 34 32 2 2 1,981 1 135 737 478 354 119 32 33 2 1,890
West Virginia - 68 505 300 138 36 11 13 5 1,076 - - 570 464 248 45 11 12 35 1,385
Wisconsin - 851 1,159 659 287 134 64 26 11 3,191 - 1,455 1,530 671 624 197 115 191 48 4,831
Wyoming 5 465 1,139 287 81 4 1 5 1 1,983 - 183 448 347 176 75 46 - - 1,275
U.S. Total 946 16,093 43,175 18,453 9,028 4,035 1,787 846 799 94,216 1,049 14,785 55,888 31,161 17,266 8,017 3,462 1,887 1,892 134,358
Puerto Rico 3 - 1 13 13 7 10 2 4 50 63 - - 1 - 30 26 30 81 168
Grand Total 949 16,093 43,176 18,466 9,041 4,042 1,797 848 803 94,266 1,112 14,785 55,888 31,162 17,266 8,047 3,488 1,917 1,973 134,526

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

OCTOBER 2006 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 - 29 161 58 25 19 10 21 34 357
Alaska - 12 30 16 10 1 - - - 69
Arizona - 85 65 27 8 1 - - - 186
Arkansas - 24 93 25 16 19 4 4 3 188
California 2 69 357 206 238 113 107 37 7 1,134
Colorado - 16 96 82 41 16 17 2 - 270
Connecticut - 27 135 76 41 11 5 4 3 302
Delaware 1 5 16 13 2 2 1 1 - 40
Dist. of Columbia - - - - 4 1 1 1 5 12
Florida 5 325 350 31 5 5 1 - - 717
Georgia - 351 149 23 5 - - - - 528
Hawaii - 1 5 12 7 11 7 3 4 50
Idaho - 10 60 9 - 4 - 5 4 92
Illinois - 35 243 195 114 80 24 12 4 707
Indiana 4/ - 15 153 70 42 30 5 1 - 316
Iowa 2 10 51 31 23 12 10 7 9 153
Kansas 21 12 94 59 30 1 - - - 196
Kentucky 1 44 97 47 17 1 3 - - 209
Louisiana 53 38 101 59 36 58 15 5 4 316
Maine - 7 40 16 4 - 1 - - 68
Maryland 10 32 143 55 23 12 12 6 4 287
Massachusetts 5 48 262 106 22 36 2 1 1 478
Michigan - 43 215 132 94 69 36 19 26 634
Minnesota - 11 115 51 28 23 6 - - 234
Mississippi - 27 98 29 21 13 4 3 - 195
Missouri - 49 192 60 33 25 7 10 4 380
Montana 1 11 36 2 - 4 6 1 - 60
Nebraska - 4 26 7 3 9 6 2 - 57
Nevada - 39 27 16 16 11 2 - - 111
New Hampshire - 16 51 7 - - - - - 74
New Jersey 7 13 81 99 89 32 19 17 10 360
New Mexico - 53 69 12 10 7 2 1 1 155
New York 5/ 17 54 269 123 92 56 35 28 54 711
North Carolina - 27 280 105 58 36 18 8 30 562
North Dakota - 2 37 10 2 - - - - 51
Ohio - 237 416 135 38 12 7 3 2 850
Oklahoma 8 37 93 37 20 20 11 9 14 241
Oregon 1 16 129 20 5 1 - - - 171
Pennsylvania 12 108 295 168 59 27 8 5 3 673
Rhode Island - 9 25 13 2 - - - - 49
South Carolina - 63 147 37 14 4 1 - - 266
South Dakota - 1 36 21 6 4 1 - - 69
Tennessee - 207 154 28 11 7 4 2 1 414
Texas 3 89 409 258 183 74 18 8 1 1,040
Utah - 52 91 59 13 4 - - - 219
Vermont - 10 17 4 3 7 - - - 41
Virginia 4 21 177 117 66 48 13 2 3 447
Washington - 97 98 39 24 20 13 2 4 297
West Virginia - 29 80 23 16 4 5 1 1 159
Wisconsin 4 31 135 52 19 12 9 1 - 259
Wyoming - 24 31 10 9 5 8 1 2 90
U.S. Total 157 2,575 6,530 2,890 1,647 967 464 233 238 15,544
Puerto Rico 1 - 16 41 55 70 20 23 8 233
Grand Total 158 2,575 6,546 2,931 1,702 1,037 484 256 246 15,777
OCTOBER 2006 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 - - 15 7 3 1 - 2 1 29 - 137 371 222 178 83 35 25 25 1,076
Alaska - - - - - - - - - - - 2 15 17 12 8 3 3 2 62
Arizona 1 33 74 32 8 7 1 - - 155 524 111 145 193 157 119 73 37 41 876
Arkansas - 3 36 18 8 13 11 6 4 99 17 2 75 141 126 92 48 41 50 575
California 6 72 455 417 218 185 94 37 10 1,488 40 46 282 604 973 1,200 955 869 1,231 6,160
Colorado - 18 149 66 53 18 5 4 - 313 7 22 173 224 257 182 135 97 98 1,188
Connecticut - 10 89 85 28 12 8 2 3 237 - - 28 139 164 138 81 56 79 685
Delaware - - 7 6 1 1 - - - 15 1 9 85 48 23 11 8 6 11 201
Dist. of Columbia - - - 1 1 5 3 3 10 23 - - - - - 1 7 3 80 91
Florida 3 102 405 26 6 6 2 - - 547 21 490 1,804 739 299 113 51 24 20 3,540
Georgia - 67 45 7 1 - 1 - - 121 - 818 838 171 51 18 8 - - 1,904
Hawaii - - 4 4 5 9 4 4 6 36 - 14 24 31 45 44 32 17 19 226
Idaho - - - - - - - - - - 47 8 72 66 47 39 19 21 17 289
Illinois - - 9 24 31 23 3 1 2 93 1 41 421 679 513 438 272 182 303 2,849
Indiana 4/ - 16 42 37 14 14 7 5 1 136 6 55 245 325 271 246 144 112 134 1,532
Iowa - - - - - - - - - - 67 26 160 147 101 82 58 51 111 736
Kansas 32 14 107 25 6 3 3 1 1 160 179 30 125 70 65 66 69 47 123 595
Kentucky - 1 50 - - 12 - - - 63 - 41 270 204 134 81 26 12 16 784
Louisiana 5 - 20 6 3 14 2 - 3 48 30 25 213 154 98 134 114 123 173 1,034
Maine - 1 9 4 2 1 1 1 1 20 - 4 38 20 20 19 14 10 17 142
Maryland 9 23 114 74 32 16 6 7 8 280 12 20 170 178 160 146 95 68 226 1,063
Massachusetts 7 14 162 71 32 6 9 9 2 305 12 6 71 245 323 379 377 227 204 1,832
Michigan - 22 130 61 56 35 12 4 6 326 143 23 269 301 343 365 276 203 384 2,164
Minnesota - 9 73 38 18 13 3 - - 154 - 49 166 131 98 68 19 17 18 566
Mississippi - 11 35 14 7 3 - - 1 71 - 25 199 311 141 106 82 37 58 959
Missouri 1 20 98 76 76 48 16 7 5 346 32 9 133 174 383 105 74 51 79 1,008
Montana - - - - - - - - - - 5 4 33 28 32 28 16 13 23 177
Nebraska - - 1 1 5 7 5 2 - 21 72 4 16 34 37 81 48 48 111 379
Nevada 1 12 19 15 5 3 - - - 54 30 98 73 39 31 8 6 6 5 266
New Hampshire - 21 28 1 2 - - - - 52 - 12 94 48 21 22 3 9 10 219
New Jersey 1 - 108 130 83 44 26 4 7 402 98 - 54 191 305 304 193 171 387 1,605
New Mexico - - 5 - - - - - - 5 37 59 149 149 114 67 54 34 41 667
New York 5/ 21 23 174 165 114 97 80 48 76 777 132 9 292 325 279 227 161 123 919 2,335
North Carolina - 13 188 68 56 30 14 7 9 385 37 15 610 357 273 193 92 59 123 1,722
North Dakota - - - - - - - - - - - - 21 52 29 17 17 11 17 164
Ohio - 72 204 113 61 14 11 3 5 483 - 223 563 495 405 248 164 120 191 2,409
Oklahoma 3 17 84 27 26 15 8 6 3 186 11 19 179 191 160 125 108 91 166 1,039
Oregon - 4 23 14 11 2 - - - 54 7 28 149 168 165 91 61 36 51 749
Pennsylvania 3 50 202 124 81 43 23 11 9 543 7 68 459 591 579 515 283 179 177 2,851
Rhode Island - - 35 33 10 5 - 1 - 84 - - 5 23 68 81 56 51 72 356
South Carolina - 3 41 18 13 16 1 - 1 93 - 19 331 288 207 91 47 39 39 1,061
South Dakota 3 - 3 - 3 2 - - 1 9 24 - 11 23 17 16 20 9 19 115
Tennessee - 47 52 17 7 8 2 1 3 137 - 305 602 221 150 104 47 40 60 1,529
Texas 8 46 406 330 217 122 37 8 8 1,174 88 76 852 992 950 647 456 349 636 4,958
Utah 1 - 8 3 2 - - - - 13 3 64 141 66 45 17 5 2 1 341
Vermont - 2 6 5 1 1 4 - - 19 - 1 27 19 13 14 9 10 10 103
Virginia 3 2 111 70 22 14 9 3 5 236 38 12 255 347 203 148 103 64 84 1,216
Washington - 62 205 68 16 10 6 3 3 373 34 40 221 226 208 156 111 98 188 1,248
West Virginia - - 3 3 1 - 1 - - 8 - 14 125 65 33 19 11 6 9 282
Wisconsin - 14 98 65 49 26 11 3 1 267 287 74 264 307 269 246 159 129 171 1,619
Wyoming - - 2 1 - - - - - 3 15 28 62 43 21 16 10 4 12 196
U.S. Total 108 824 4,134 2,370 1,394 904 429 193 195 10,443 2,064 3,185 11,980 10,822 9,596 7,764 5,315 4,040 7,041 59,743
Puerto Rico 2 - - 12 7 13 8 3 13 56 36 - 5 25 63 75 73 58 56 355
Grand Total 110 824 4,134 2,382 1,401 917 437 196 208 10,499 2,100 3,185 11,985 10,847 9,659 7,839 5,388 4,098 7,097 60,098

Footnotes

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.

4/ Excludes 770 miles of Federal agency owned roads.

5/ 2004 data used.


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