United States Department of Transportation - Federal Highway Administration FHWA HomeFeedback
Highway Statistics 1999 OHPI > Highway Statistics > 1999 > Roadway Extent > Table HM-47

NATIONAL HIGHWAY SYSTEM LENGTH - 1999

MILES MEASURED BY PAVEMENT ROUGHNESS - RUAL

JANUARY 2002  TABLE HM-47
Sheet 1 of 4
STATE INTERNATIONAL ROUGHNESS INDEX (IRI) 1/
INTERSTATE SYSTEM OTHER
NOT
REPORTED 2/		 < 60 60-94 95-19 120-144 145-170 171-194 195-220 > 220 TOTAL
REPORTED		 NOT
REPORTED 2/		 < 60 60-94 95-119 120-144 145-170 171-194 195-220 > 220 TOTAL
REPORTED
Alabama 0 228 260 73 33 4 3 0 0 601 0 493 1,179 300 56 8 10 2 0 2,048
Alaska 0 23 318 346 218 79 35 0 11 1,030 455 7 135 54 197 59 15 22 8 497
Arizona 0 747 204 27 12 5 1 0 0 996 17 213 374 266 141 73 21 12 20 1,120
Arkansas 0 0 50 45 63 99 70 22 44 393 31 9 607 596 314 168 84 38 10 1,826
California 0 7 613 298 240 124 40 13 27 1,362 3 24 1,012 1,076 852 432 87 47 2 3,532
Colorado 0 73 492 103 62 34 4 0 0 768 0 66 806 419 257 198 65 9 16 1,836
Connecticut 0 0 58 20 13 6 2 1 2 102 0 0 54 73 73 33 15 4 1 253
Delaware 0 0 0 0 0 0 0 0 0 0 9 4 78 85 21 2 3 3 1 197
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Florida 22 769 70 16 49 24 3 0 0 931 42 921 657 108 47 9 0 1 0 1,743
Georgia 0 596 185 26 0 0 0 0 0 807 8 1,867 583 35 0 5 0 0 0 2,490
Hawaii 6 0 0 0 0 0 0 0 0 0 141 0 0 0 0 0 0 0 0 0
Idaho 0 197 221 88 9 3 4 3 1 526 0 266 662 456 203 54 15 4 2 1,662
Illinois 0 43 549 439 313 159 10 0 2 1,515 0 41 567 477 472 158 75 46 21 1,857
Indiana 0 454 341 52 5 1 0 0 0 853 4 258 579 212 146 45 40 1 0 1,281
Iowa 1 101 308 190 33 0 1 0 0 633 114 312 730 339 189 202 102 14 16 1,904
Kansas 0 201 342 108 36 6 5 0 0 698 32 552 1,498 333 128 80 24 8 2 2,625
Kentucky 0 133 250 23 95 35 0 0 0 536 0 315 908 245 202 51 7 0 1 1,729
Louisiana 65 0 142 149 95 105 33 6 17 547 38 13 401 217 199 130 111 63 28 1,162
Maine 29 15 222 34 10 2 0 0 0 283 7 57 410 169 78 43 7 11 6 781
Maryland 1 28 157 28 12 1 0 0 0 226 10 46 325 124 27 9 11 3 4 549
Massachusetts 0 0 90 65 6 0 0 0 1 162 8 0 56 146 44 41 20 4 4 315
Michigan 0 67 257 187 127 55 23 14 11 741 0 430 919 423 286 150 49 20 30 2,307
Minnesota 0 216 315 52 75 23 1 0 0 682 0 772 927 524 232 76 29 9 9 2,578
Mississippi 0 85 230 114 62 40 19 8 0 558 0 143 755 401 242 75 15 23 4 1,658
Missouri 0 3 178 325 188 103 9 1 1 808 3 20 456 723 832 361 122 28 29 2,571
Montana 0 339 516 123 99 45 7 5 0 1,134 0 259 1,355 530 226 140 63 24 9 2,606
Nebraska 0 175 107 75 51 21 9 0 0 438 0 517 646 452 271 114 151 69 33 2,253
Nevada 0 126 265 48 20 11 7 1 1 479 19 131 627 229 257 149 25 0 0 1,418
New Hampshire 0 51 95 24 6 0 0 0 0 176 0 58 257 76 22 21 18 6 5 463
New Jersey 9 1 41 41 9 11 4 3 1 111 89 0 43 110 92 120 35 7 49 456
New Mexico 0 0 89 425 278 59 17 16 8 892 0 44 556 549 305 140 55 41 50 1,740
New York 15 0 533 154 87 51 40 30 29 924 28 2 994 343 159 115 82 36 71 1,802
North Carolina 0 69 256 143 91 65 6 20 1 651 0 77 1,095 491 252 172 59 20 9 2,175
North Dakota 0 143 276 90 20 1 0 0 0 530 0 382 1,015 495 144 26 5 20 1 2,088
Ohio 0 293 421 95 15 3 2 0 0 829 0 269 1,149 286 95 20 10 3 7 1,839
Oklahoma 0 81 339 157 106 14 22 1 1 721 0 39 901 568 292 190 79 23 17 2,109
Oregon 1 0 205 340 35 0 0 0 0 580 118 32 317 1,286 772 125 32 3 1 2,568
Pennsylvania 1 127 733 211 74 31 12 11 8 1,207 1 132 897 590 326 170 82 35 19 2,251
Rhode Island 0 0 18 3 0 0 0 0 0 21 0 0 24 23 9 5 1 2 0 64
South Carolina 0 275 295 80 14 1 6 0 0 671 0 68 830 237 77 31 17 10 3 1,273
South Dakota 2 2 262 202 50 99 12 0 0 627 122 34 444 479 429 337 139 104 102 2,068
Tennessee 0 119 539 58 13 5 0 0 0 734 48 96 802 306 160 67 16 1 0 1,448
Texas 0 407 1,378 284 103 38 1 0 0 2,211 0 312 3,191 1,991 682 177 64 15 6 6,438
Utah 0 166 368 120 51 54 9 2 0 770 0 27 454 333 123 59 17 0 0 1,013
Vermont 0 0 200 29 34 9 2 5 2 281 0 0 78 56 71 59 25 12 18 319
Virginia 0 18 586 108 10 2 1 0 0 725 0 6 627 452 219 116 40 13 21 1,494
Washington 0 211 218 51 19 0 2 0 0 501 13 339 1,271 350 82 31 5 4 2 2,084
West Virginia 0 33 259 57 46 35 8 9 8 455 0 94 404 315 173 51 19 19 4 1,079
Wisconsin 1 66 235 149 71 41 5 1 0 568 0 244 815 629 455 227 123 85 76 2,654
Wyoming 0 384 352 71 14 5 0 0 0 826 3 841 925 115 31 37 0 3 3 1,955
U.S. Total 153 7,072 14,438 5,946 3,072 1,509 435 172 176 32,820 1,363 10,832 34,395 19,092 10,962 5,161 2,089 927 720 84,178
Puerto Rico 0 0 8 23 51 13 5 0 3 103 3 0 0 2 6 27 6 0 2 43
Grand Total 153 7,072 14,446 5,969 3,123 1,522 440 172 179 32,923 1,366 10,832 34,395 19,094 10,968 5,188 2,095 927 722 84,221

 

JANUARY 2002  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 0 721 1,439 373 89 13 13 2 0 2,650
Alaska 455 30 453 401 415 138 51 22 18 1,528
Arizona 17 960 579 293 153 78 22 12 20 2,117
Arkansas 31 9 657 642 377 268 154 59 54 2,220
California 3 31 1,625 1,374 1,092 557 127 59 30 4,895
Colorado 0 139 1,299 521 319 232 68 9 16 2,603
Connecticut 0 0 112 93 86 39 17 5 2 354
Delaware 9 4 78 85 21 2 3 3 1 197
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0
Florida 65 1,690 727 124 97 33 3 1 0 2,675
Georgia 9 2,462 767 62 0 5 0 0 0 3,296
Hawaii 147 0 0 0 0 0 0 0 0 0
Idaho 0 463 883 544 212 57 20 7 2 2,188
Illinois 0 84 1,117 916 785 317 85 46 23 3,373
Indiana 4 712 920 264 151 46 40 1 0 2,134
Iowa 115 413 1,039 529 222 202 103 14 16 2,538
Kansas 32 753 1,841 441 164 86 29 8 2 3,324
Kentucky 0 448 1,158 268 297 86 7 0 1 2,265
Louisiana 103 13 543 366 294 236 143 70 45 1,710
Maine 36 72 632 203 88 44 7 11 6 1,063
Maryland 11 75 483 153 39 9 12 4 5 780
Massachusetts 8 0 146 211 50 42 20 5 5 479
Michigan 0 497 1,176 611 413 205 72 34 40 3,048
Minnesota 0 988 1,242 576 307 99 30 9 9 3,260
Mississippi 0 227 986 515 304 115 34 32 4 2,217
Missouri 3 23 634 1,048 1,019 464 131 29 29 3,377
Montana 0 599 1,871 653 325 184 70 29 9 3,740
Nebraska 0 692 753 527 321 135 160 69 33 2,690
Nevada 19 257 893 277 277 160 32 2 1 1,899
New Hampshire 0 109 352 100 28 21 18 6 5 639
New Jersey 98 1 84 151 100 130 39 10 50 565
New Mexico 0 44 645 975 584 199 72 57 58 2,634
New York 43 2 1,526 497 246 166 122 66 100 2,725
North Carolina 0 145 1,351 634 343 237 64 39 9 2,822
North Dakota 0 525 1,291 585 164 27 5 20 1 2,618
Ohio 0 563 1,570 381 110 24 12 3 7 2,670
Oklahoma 0 121 1,240 725 398 203 101 25 18 2,831
Oregon 119 32 522 1,626 807 125 32 3 1 3,148
Pennsylvania 3 259 1,629 800 400 201 94 47 26 3,456
Rhode Island 0 0 43 26 9 5 1 2 0 86
South Carolina 0 343 1,124 317 91 32 23 10 3 1,943
South Dakota 125 36 706 681 479 435 152 104 102 2,695
Tennessee 48 215 1,341 364 173 72 16 1 0 2,182
Texas 0 719 4,570 2,275 785 214 65 15 6 8,649
Utah 0 193 822 454 173 113 27 2 0 1,784
Vermont 0 0 278 85 105 68 27 17 19 599
Virginia 0 24 1,213 560 229 119 41 13 21 2,220
Washington 13 550 1,489 401 102 31 7 4 2 2,586
West Virginia 0 127 663 371 219 87 26 28 11 1,532
Wisconsin 1 310 1,050 779 526 268 127 86 76 3,222
Wyoming 3 1,225 1,278 186 44 42 0 3 3 2,781
U.S. Total 1,520 17,905 48,840 25,043 14,032 6,671 2,524 1,103 889 117,007
Puerto Rico 3 0 8 24 57 40 11 0 4 144
Grand Total 1,523 17,905 48,848 25,067 14,089 6,711 2,535 1,103 893 117,151

 

JANUARY 2002  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 0 85 115 34 36 27 7 0 0 304 0 207 335 110 34 8 6 2 4 706
Alaska 0 1 31 12 2 7 1 0 0 54 0 0 7 28 20 7 5 2 2 71
Arizona 0 94 37 31 9 2 0 0 0 173 140 26 94 55 36 19 4 0 5 239
Arkansas 0 3 11 24 37 34 20 9 10 148 16 1 63 66 34 45 18 11 19 257
California 1 24 169 201 285 231 103 62 18 1,093 0 32 210 261 437 276 112 56 43 1,427
Colorado 0 30 80 41 21 12 1 0 0 185 15 18 138 160 90 52 27 65 34 584
Connecticut 0 1 80 88 37 19 8 5 6 244 0 0 59 93 75 60 38 17 21 363
Delaware 1 0 7 11 7 3 6 2 3 39 0 4 25 24 7 2 1 1 2 66
Dist. of Columbia 1 0 3 2 0 1 1 4 3 14 2 0 0 1 4 7 10 11 31 64
Florida 33 269 144 28 22 17 6 0 0 486 93 346 438 117 56 20 9 5 6 997
Georgia 1 307 118 8 0 1 2 0 0 436 25 491 251 36 13 3 0 0 0 794
Hawaii 49 0 0 0 0 0 0 0 0 0 109 0 0 0 0 0 0 0 0 0
Idaho 0 25 29 9 4 13 4 1 0 85 0 10 24 20 19 6 6 5 6 96
Illinois 1 40 190 199 116 61 40 3 0 649 72 36 324 312 270 200 173 120 167 1,602
Indiana 0 72 165 53 12 10 4 2 0 318 17 26 80 66 77 47 36 5 24 361
Iowa 0 2 48 35 30 10 19 2 0 146 52 53 63 46 39 45 14 5 25 290
Kansas 2 7 74 67 21 1 1 1 0 172 56 20 69 45 19 19 7 6 5 190
Kentucky 0 61 85 23 36 6 12 3 0 226 0 39 149 133 40 23 6 3 1 394
Louisiana 59 0 21 70 27 62 29 3 11 223 101 6 84 50 53 50 49 41 72 405
Maine 10 1 36 6 1 0 0 0 0 44 17 0 42 27 15 16 6 5 5 116
Maryland 9 5 114 71 26 9 9 5 5 244 10 20 112 84 46 37 22 28 43 392
Massachusetts 2 0 182 144 45 23 6 1 0 401 208 1 90 168 186 140 95 68 98 846
Michigan 1 20 179 108 98 44 25 13 12 499 0 16 102 152 161 176 151 113 303 1,174
Minnesota 1 66 105 39 14 4 2 0 0 230 0 89 163 103 69 18 14 3 11 470
Mississippi 0 2 20 45 45 10 2 3 0 127 1 23 79 52 52 28 8 10 16 268
Missouri 0 0 47 114 113 68 17 6 6 371 24 0 32 101 142 124 103 48 41 591
Montana 0 4 27 12 9 4 1 0 0 57 0 0 11 17 15 7 4 4 5 63
Nebraska 0 2 19 15 3 3 1 0 1 44 11 7 19 25 31 34 36 21 55 228
Nevada 0 11 26 21 6 14 0 0 0 78 0 11 60 26 8 8 3 5 5 126
New Hampshire 0 14 26 7 0 0 1 0 0 48 0 7 65 18 12 8 2 2 1 115
New Jersey 30 2 52 113 44 40 5 7 7 270 213 0 58 130 201 194 131 56 108 878
New Mexico 0 0 12 36 30 17 5 2 6 108 3 3 41 57 31 19 8 8 8 175
New York 17 0 259 134 82 65 58 32 82 712 110 6 311 272 228 189 112 104 313 1,535
North Carolina 0 2 163 74 65 24 9 22 10 369 0 2 165 109 79 68 29 11 10 473
North Dakota 0 14 20 4 2 0 0 0 0 40 0 3 20 10 10 8 6 2 4 63
Ohio 0 124 406 139 38 19 6 7 3 742 0 61 318 225 124 96 39 24 30 917
Oklahoma 0 3 55 49 32 28 22 11 9 209 0 0 71 65 53 41 25 13 7 275
Oregon 4 0 27 76 30 8 0 1 0 142 17 2 28 96 78 71 25 13 11 324
Pennsylvania 3 16 254 146 66 35 16 10 5 548 7 24 285 290 293 230 128 80 100 1,430
Rhode Island 0 0 16 13 13 5 1 0 0 48 0 1 44 38 27 7 5 2 2 126
South Carolina 0 43 78 20 8 4 5 0 0 158 0 14 157 123 69 52 20 14 26 475
South Dakota 0 0 9 8 8 17 5 2 1 50 44 0 3 1 4 4 2 2 1 17
Tennessee 0 61 151 69 35 12 8 2 0 338 41 27 281 144 68 45 16 10 9 600
Texas 0 39 400 297 189 76 18 2 0 1,021 6 81 796 844 738 402 556 95 136 3,648
Utah 0 16 63 42 28 10 7 1 0 167 0 6 81 56 33 30 10 3 5 224
Vermont 0 0 27 6 8 0 0 0 0 41 0 0 7 14 9 10 4 2 8 54
Virginia 0 0 159 117 85 13 10 8 1 393 34 0 184 233 163 102 53 41 50 826
Washington 1 65 108 29 24 27 5 4 0 262 138 44 207 80 50 25 13 7 12 438
West Virginia 0 10 53 14 7 5 3 1 0 93 0 4 38 26 19 16 6 5 3 117
Wisconsin 4 15 55 34 31 32 4 1 0 172 1 6 74 98 118 136 101 69 160 762
Wyoming 0 23 26 23 10 4 1 0 1 88 0 26 36 8 2 4 2 1 0 79
U.S. Total 230 1,579 4,581 2,961 1,897 1,137 516 238 200 13,109 1,583 1,799 6,393 5,315 4,457 3,234 2,256 1,224 2,053 26,731
Puerto Rico 1 0 5 46 42 23 18 7 6 147 7 0 2 21 13 27 11 6 7 87
Grand Total 231 1,579 4,586 3,007 1,939 1,160 534 245 206 13,256 1,590 1,799 6,395 5,336 4,470 3,261 2,267 1,230 2,060 26,818

 

JANUARY 2002  TABLE HM-47
Sheet 4 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 0 292 450 144 69 35 13 2 4 1,009
Alaska 0 1 38 40 22 14 6 2 2 125
Arizona 140 120 130 85 45 21 4 0 5 410
Arkansas 16 4 74 90 70 80 39 21 30 408
California 1 56 378 462 722 507 215 118 60 2,518
Colorado 15 49 218 202 110 63 28 65 34 769
Connecticut 0 1 139 181 113 79 47 23 27 610
Delaware 1 4 32 35 14 5 6 3 4 103
Dist. of Columbia 2 0 3 3 4 8 12 15 35 80
Florida 125 615 583 144 78 37 15 6 6 1,484
Georgia 26 797 370 44 13 4 2 0 0 1,230
Hawaii 157 0 0 0 0 0 0 0 0 0
Idaho 0 36 53 29 22 20 10 6 6 182
Illinois 73 76 513 511 386 260 213 123 167 2,249
Indiana 17 97 245 119 88 56 40 7 24 676
Iowa 52 55 111 82 69 55 33 8 25 438
Kansas 58 26 143 112 40 20 8 7 5 361
Kentucky 0 101 234 156 76 29 18 6 1 621
Louisiana 160 6 104 120 80 113 78 44 83 628
Maine 28 1 77 33 16 16 6 5 5 159
Maryland 18 24 226 155 72 45 31 34 48 635
Massachusetts 210 1 272 312 232 163 101 69 99 1,249
Michigan 2 36 280 261 259 220 176 126 315 1,673
Minnesota 2 156 269 142 82 22 15 3 11 700
Mississippi 1 25 99 97 97 38 10 13 16 395
Missouri 24 0 79 215 255 192 120 54 47 962
Montana 0 4 37 30 23 10 5 4 5 118
Nebraska 11 10 38 40 35 37 37 21 57 275
Nevada 0 23 86 47 14 22 4 5 5 206
New Hampshire 0 21 90 26 12 8 3 2 1 163
New Jersey 243 2 110 243 245 234 136 63 115 1,148
New Mexico 3 3 53 93 60 36 13 10 14 282
New York 127 6 570 405 310 254 169 136 394 2,244
North Carolina 0 5 327 183 144 93 38 33 20 843
North Dakota 0 17 40 14 12 8 6 2 4 103
Ohio 0 185 724 364 162 116 46 31 33 1,661
Oklahoma 0 3 126 114 85 69 47 23 16 483
Oregon 22 2 54 171 109 79 25 13 11 464
Pennsylvania 10 40 539 436 359 266 144 90 105 1,979
Rhode Island 0 2 60 50 40 12 6 3 2 175
South Carolina 0 57 235 143 77 56 25 14 26 633
South Dakota 45 0 12 9 13 22 6 3 1 66
Tennessee 41 89 431 213 103 58 24 12 9 939
Texas 6 119 1,195 1,141 927 478 574 96 136 4,666
Utah 0 22 145 98 61 40 18 4 5 393
Vermont 0 0 34 20 17 10 4 2 8 95
Virginia 34 0 344 351 248 114 63 49 51 1,220
Washington 138 109 315 109 74 53 18 11 12 701
West Virginia 0 14 91 40 27 21 9 6 3 211
Wisconsin 5 21 130 132 149 168 105 70 160 935
Wyoming 0 49 62 31 12 7 3 1 1 166
U.S. Total 1,813 3,382 10,968 8,277 6,352 4,373 2,774 1,464 2,253 39,843
Puerto Rico 8 0 7 67 54 50 29 12 13 232
Grand Total 1,821 3,382 10,975 8,344 6,406 4,423 2,803 1,476 2,266 40,075

1/ Data are reported as the International Roughness Index (IRI) in inches per mile. Reference: World Bank Technical Paper Number measures of pavement distress are needed. 46, 1986. Lower IRI represents smoother riding roadways. To obtain a comprehensive assessment of pavement condition, additional measures of pavement condition, additional measures of pavement distress are needed.

2/ May include sections entirely on structures and unpaved miles.

OHPI Home | Highway Statistics 1999 | Data Feedback

FHWA Home | Feedback
FHWA
United States Department of Transportation - Federal Highway Administration