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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Highway Statistics Series / 2020 / Table HM-37 - Highway Statistics 2020

Highway Statistics Series

Highway Statistics 2020


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Federal-Aid Highway Length - 2020 (1)
    Miles by Average Daily Traffic Volume

October 26, 2021

Table HM-37 (Sheet 1 of 3)
STATE NATIONAL HIGHWAY SYSTEM - RURAL
INTERSTATE SYSTEM OTHER TOTAL
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 10,000 10,000-19,999 20,000-34,999 35,000 AND OVER LESS THAN 1,000 1,000-1,999 2,000-2,999 3,000-3,999 4,000-4,999 5,000-9,999 10,000-14,999 15,000 AND OVER
Alabama - 122 289 159 571 3 128 229 288 193 663 346 152 2,002 2,573
Alaska 980 7 11 3 1,002 809 45 59 36 14 25 1 - 988 1,990
Arizona 86 438 313 80 916 12 77 93 181 120 430 233 57 1,203 2,119
Arkansas 35 106 267 31 439 60 162 235 309 358 689 74 51 1,938 2,377
California 45 340 321 503 1,209 244 495 312 327 292 1,009 466 843 3,988 5,198
Colorado 152 290 141 65 648 229 387 441 452 308 527 104 128 2,576 3,224
Connecticut - - 9 19 29 - - 1 7 27 63 28 31 158 186
Delaware - - - - - - 3 - 4 - 32 20 79 138 138
District of Columbia - - - - - - - - - - - - - - -
Florida - 57 319 341 717 20 67 160 247 337 949 445 539 2,765 3,482
Georgia 1 58 213 266 538 44 272 457 195 303 1,750 124 100 3,245 3,784
Hawaii - - - - - 1 1 - - 29 30 4 16 80 80
Idaho 185 213 121 1 519 247 320 270 257 159 359 49 41 1,702 2,221
Illinois 134 724 354 31 1,243 7 202 587 526 426 587 72 2 2,408 3,652
Indiana 67 249 300 152 769 2 29 141 256 203 685 258 173 1,745 2,514
Iowa 21 328 235 27 610 33 583 791 626 318 844 191 40 3,425 4,036
Kansas 87 497 44 11 640 68 648 774 458 406 557 89 32 3,032 3,672
Kentucky 110 133 138 331 711 2 46 59 121 186 797 337 95 1,644 2,355
Louisiana - 104 268 156 528 64 113 129 168 126 343 139 47 1,128 1,656
Maine 118 62 59 40 279 1 112 103 108 86 283 82 26 801 1,081
Maryland - 67 21 55 142 - 11 - 20 7 69 96 175 377 519
Massachusetts - 12 35 15 63 16 83 96 61 42 98 19 15 430 492
Michigan 70 179 195 119 562 39 368 220 401 320 710 185 241 2,483 3,046
Minnesota 199 272 92 25 588 134 620 643 617 324 763 227 161 3,488 4,077
Mississippi 2 297 235 45 578 12 80 85 112 198 886 272 167 1,812 2,391
Missouri 74 326 415 26 842 39 351 363 310 304 958 439 237 3,001 3,843
Montana 972 121 2 - 1,095 723 921 575 176 103 186 53 35 2,773 3,868
Nebraska 104 150 132 28 415 355 804 542 331 196 389 53 13 2,683 3,098
Nevada 303 62 50 41 457 378 342 424 153 49 140 40 19 1,544 2,001
New Hampshire 26 71 40 6 142 - 6 31 27 32 158 107 26 387 529
New Jersey - - 4 41 45 - 4 3 9 2 67 58 53 195 240
New Mexico 329 362 148 4 843 146 384 352 222 148 324 116 58 1,749 2,593
New York 351 252 195 9 806 52 323 396 455 258 665 97 45 2,293 3,098
North Carolina 19 134 244 168 565 20 48 133 163 141 659 498 537 2,199 2,764
North Dakota 416 94 - - 510 1,346 833 289 142 176 145 11 3 2,945 3,455
Ohio 2 108 350 183 643 33 89 165 162 184 658 382 222 1,895 2,538
Oklahoma 31 313 261 42 646 65 313 287 357 225 707 118 238 2,309 2,955
Oregon 26 289 124 56 495 538 501 299 276 285 597 104 58 2,657 3,152
Pennsylvania 25 380 550 111 1,066 7 123 210 205 206 608 312 213 1,885 2,952
Rhode Island - - 7 11 18 - 6 11 16 11 38 21 4 108 126
South Carolina - 3 215 329 546 7 118 196 219 118 535 220 181 1,593 2,139
South Dakota 371 209 12 - 591 876 1,136 428 211 94 142 2 - 2,889 3,481
Tennessee 16 39 289 300 645 6 121 100 187 224 747 273 81 1,739 2,383
Texas 304 621 686 390 2,001 338 614 947 768 613 2,513 1,065 780 7,638 9,639
Utah 324 208 141 12 685 113 151 233 173 109 331 40 32 1,183 1,868
Vermont 139 99 18 - 256 6 6 20 65 41 162 8 - 307 563
Virginia 41 9 262 286 598 91 93 64 27 156 601 400 329 1,760 2,359
Washington 32 189 104 105 429 116 273 318 197 243 572 73 133 1,925 2,354
West Virginia 69 155 82 14 319 65 171 153 150 128 221 119 13 1,020 1,339
Wisconsin 7 158 249 99 512 37 297 492 504 399 921 358 150 3,159 3,671
Wyoming 456 351 - - 807 227 822 584 111 96 124 5 - 1,969 2,776
U.S. Total 6,727 9,257 8,561 4,734 29,279 7,629 13,699 13,501 11,393 9,327 26,315 8,829 6,672 97,365 126,644
Puerto Rico - 12 28 14 54 - - 3 1 3 20 29 12 68 123
Grand Total 6,727 9,269 8,589 4,748 29,333 7,629 13,699 13,503 11,394 9,330 26,335 8,858 6,684 97,433 126,766

 

October 26, 2021

Table HM-37 (Sheet 2 of 3)
STATE NATIONAL HIGHWAY SYSTEM - URBAN
INTERSTATE SYSTEM OTHER TOTAL
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 30,000 30,000-69,999 70,000-124,999 125,000-174,999 175,000 AND OVER LESS THAN 7,500 7,500-14,999 15,000-34,999 35,000-59,999 60,000 AND OVER
Alabama 71 262 100 1 - 433 133 342 707 90 18 1,290 1,723
Alaska 51 28 - - - 79 28 67 65 - - 161 240
Arizona 51 99 50 24 28 252 43 113 373 164 148 840 1,093
Arkansas 102 137 71 - - 310 157 216 278 21 7 679 989
California 53 125 328 290 451 1,247 1,122 1,490 3,333 901 1,110 7,956 9,203
Colorado 76 72 108 24 24 304 91 257 768 191 73 1,380 1,683
Connecticut 22 107 161 27 - 318 148 333 303 79 95 958 1,275
Delaware 1 15 21 1 3 41 6 42 149 46 12 256 297
District of Columbia - 4 5 2 1 12 4 33 71 9 5 122 134
Florida 24 231 317 119 87 778 172 620 1,989 1,351 416 4,549 5,327
Georgia 31 335 175 100 67 709 385 807 1,108 390 58 2,747 3,456
Hawaii 7 16 20 7 5 55 22 129 143 25 2 320 375
Idaho 43 30 20 - - 93 55 87 104 11 - 257 350
Illinois 320 330 190 84 18 942 717 1,036 1,251 135 19 3,158 4,100
Indiana 164 213 87 25 3 492 101 234 311 39 2 686 1,178
Iowa 73 83 22 - - 178 397 313 230 - - 940 1,118
Kansas 115 92 28 - 1 236 162 167 141 24 16 510 745
Kentucky 23 97 91 21 1 233 77 235 347 57 10 725 958
Louisiana 75 271 55 23 - 425 179 406 442 102 1 1,129 1,554
Maine 41 46 - - - 87 20 85 54 - - 160 247
Maryland 17 87 113 80 39 336 51 214 689 234 129 1,317 1,653
Massachusetts 44 205 214 38 5 505 447 1,003 540 270 90 2,349 2,855
Michigan 150 310 184 32 - 676 330 907 1,171 240 88 2,734 3,411
Minnesota 76 103 137 10 - 325 125 227 307 112 78 849 1,174
Mississippi 77 144 31 1 - 253 251 333 363 49 - 997 1,250
Missouri 133 186 176 42 - 538 157 389 644 120 38 1,347 1,886
Montana 97 1 - - - 98 64 87 65 2 - 219 317
Nebraska 24 27 11 8 - 69 86 153 196 18 12 465 533
Nevada 50 53 27 25 6 162 32 89 194 67 37 419 581
New Hampshire 9 52 21 - - 83 29 140 96 40 14 320 403
New Jersey 2 118 195 55 17 387 190 676 884 344 247 2,341 2,728
New Mexico 82 52 7 11 5 156 82 155 121 17 5 380 536
New York 353 379 125 72 3 932 924 1,422 1,181 252 264 4,042 4,974
North Carolina 110 415 239 30 - 793 147 556 1,158 245 25 2,131 2,924
North Dakota 49 10 2 - - 61 87 65 53 1 - 206 267
Ohio 130 475 302 27 - 933 344 799 896 137 36 2,212 3,145
Oklahoma 111 99 67 9 - 286 151 223 207 52 31 665 952
Oregon 66 87 63 18 - 234 128 329 411 35 22 926 1,160
Pennsylvania 263 401 122 10 1 797 686 1,464 1,007 202 59 3,418 4,215
Rhode Island - 30 13 10 - 52 55 198 134 30 7 424 477
South Carolina 34 143 125 3 - 304 61 363 575 153 7 1,158 1,462
South Dakota 64 24 - - - 88 62 59 35 - - 156 244
Tennessee 55 278 167 57 - 557 282 649 930 164 36 2,061 2,617
Texas 179 544 375 248 116 1,462 880 1,736 3,096 757 516 6,986 8,448
Utah 67 78 48 36 25 253 101 151 352 85 7 697 950
Vermont 57 7 - - - 64 25 52 12 - - 89 153
Virginia 49 229 145 69 29 521 110 469 788 307 91 1,765 2,286
Washington 55 104 100 62 14 335 213 588 872 137 59 1,868 2,203
West Virginia 105 128 3 - - 236 106 184 124 1 - 414 650
Wisconsin 107 174 68 17 - 366 518 770 577 58 18 1,942 2,308
Wyoming 106 - - - - 106 89 78 14 - - 180 286
U.S. Total 4,064 7,533 4,929 1,716 947 19,189 10,832 21,542 29,858 7,761 3,909 73,902 93,091
Puerto Rico 73 114 33 3 7 230 40 120 185 57 22 423 653
Grand Total 4,136 7,646 4,963 1,720 954 19,419 10,872 21,662 30,043 7,818 3,931 74,325 93,744

 

October 26, 2021

Table HM-37 (Sheet 3 of 3)
STATE OTHER FEDERAL-AID HIGHWAYS
RURAL URBAN TOTAL
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 100 100-499 500-999 1,000-4,999 5,000-9,999 10,000 AND OVER LESS THAN 1,000 1,000-2,999 3,000-4,999 5,000-9,999 10,000-19,999 20,000 AND OVER
Alabama 417 4,601 3,877 6,649 620 90 16,254 984 1,864 1,098 1,400 775 123 6,243 22,497
Alaska 480 719 128 267 14 5 1,614 171 262 98 111 25 - 667 2,281
Arizona 208 839 1,001 3,191 317 51 5,608 1,010 1,509 1,947 1,649 1,219 950 8,284 13,892
Arkansas 706 5,176 3,793 4,914 296 10 14,895 1,003 1,317 745 871 335 39 4,309 19,204
California 841 4,392 2,762 7,816 1,655 966 18,431 5,035 4,499 3,499 4,893 3,950 1,870 23,746 42,177
Colorado 1,021 3,040 1,994 2,576 280 32 8,942 408 894 697 964 650 126 3,739 12,681
Connecticut - 36 109 780 142 8 1,074 230 1,050 874 1,160 455 37 3,805 4,879
Delaware 1 13 37 315 84 22 472 44 167 157 207 107 24 706 1,178
District of Columbia - - - - - - - 7 67 78 102 63 2 319 319
Florida 4 261 931 3,636 1,110 308 6,251 318 1,570 1,829 3,571 3,281 2,028 12,596 18,847
Georgia 158 2,485 2,028 10,374 424 33 15,502 479 2,147 1,739 2,017 2,506 180 9,067 24,569
Hawaii 3 5 71 296 77 23 475 31 136 111 210 125 28 642 1,116
Idaho 945 2,692 1,716 1,908 142 44 7,447 258 476 279 353 219 54 1,640 9,087
Illinois 177 4,593 4,022 7,362 241 7 16,402 1,528 3,098 1,844 2,359 1,411 193 10,433 26,835
Indiana 241 2,447 2,283 6,510 759 122 12,362 890 2,265 1,806 2,005 1,299 307 8,572 20,935
Iowa 1,129 6,380 5,350 5,239 67 6 18,171 620 1,067 612 563 136 7 3,006 21,177
Kansas 9,337 9,359 4,248 3,676 57 11 26,687 811 1,119 579 664 348 68 3,589 30,276
Kentucky 3 505 1,486 5,309 750 135 8,188 120 728 708 944 548 91 3,140 11,328
Louisiana 26 497 1,139 4,390 611 97 6,761 284 1,269 1,436 1,604 658 101 5,351 12,111
Maine 7 379 755 2,638 387 41 4,208 12 171 229 276 118 7 814 5,021
Maryland - 35 183 1,245 451 106 2,020 227 822 691 1,223 884 159 4,006 6,027
Massachusetts 14 104 215 476 51 6 866 452 2,216 1,563 2,005 720 100 7,056 7,923
Michigan 630 4,121 4,766 10,329 1,325 84 21,256 762 2,456 1,827 2,608 1,209 115 8,976 30,232
Minnesota 800 8,225 5,941 6,952 366 25 22,309 788 1,687 1,111 1,322 593 69 5,570 27,879
Mississippi 1,082 5,008 3,181 5,865 488 44 15,668 259 983 662 608 179 14 2,704 18,372
Missouri 766 7,947 4,656 6,290 515 77 20,251 430 1,435 1,011 1,296 648 71 4,891 25,141
Montana 2,499 4,432 1,381 1,332 68 7 9,719 121 287 152 161 62 3 786 10,505
Nebraska 3,993 5,650 2,735 3,033 113 5 15,530 271 499 258 339 165 47 1,580 17,110
Nevada 551 1,386 498 450 70 5 2,960 368 393 368 429 356 244 2,158 5,119
New Hampshire - 34 166 1,107 275 29 1,612 22 237 281 322 142 7 1,011 2,622
New Jersey - 33 86 728 201 34 1,082 309 1,603 1,604 2,379 917 53 6,865 7,947
New Mexico 472 2,366 1,283 2,496 277 60 6,954 383 710 410 433 240 73 2,248 9,202
New York 8 485 1,428 6,115 420 28 8,483 1,080 3,365 2,498 3,053 1,119 124 11,239 19,723
North Carolina 29 551 1,241 6,777 1,523 277 10,398 358 1,481 1,436 2,325 1,602 410 7,611 18,010
North Dakota 5,555 6,727 1,524 847 4 - 14,657 141 224 139 111 40 3 658 15,315
Ohio 74 1,557 2,467 8,353 1,117 65 13,634 568 2,496 2,173 3,417 1,864 268 10,787 24,420
Oklahoma 5,261 8,412 3,534 5,772 611 78 23,668 907 1,283 768 860 747 89 4,654 28,322
Oregon 2,336 3,697 1,700 2,352 265 49 10,399 597 1,322 689 854 401 60 3,923 14,322
Pennsylvania 59 1,683 2,108 6,812 883 111 11,657 1,130 3,149 2,299 2,572 767 25 9,944 21,601
Rhode Island - 10 44 165 26 - 244 108 316 179 219 92 3 917 1,161
South Carolina 84 2,681 2,985 6,261 842 139 12,992 474 1,200 828 1,197 721 234 4,654 17,646
South Dakota 5,447 6,380 2,256 1,312 18 - 15,413 163 242 157 143 74 8 788 16,201
Tennessee 31 1,037 1,539 4,416 840 149 8,011 750 1,660 1,158 1,552 843 239 6,202 14,213
Texas 3,634 13,445 8,858 17,716 2,466 407 46,527 3,310 6,523 4,255 5,738 4,443 1,558 25,826 72,354
Utah 266 1,460 1,104 1,587 128 7 4,552 531 603 317 490 351 87 2,379 6,931
Vermont 21 391 708 1,472 136 13 2,740 68 187 92 110 25 1 483 3,223
Virginia 80 1,938 2,569 5,331 941 135 10,994 643 1,439 935 1,517 844 237 5,615 16,609
Washington 684 3,230 1,962 3,746 423 104 10,150 773 1,768 1,163 1,383 603 65 5,754 15,904
West Virginia 277 1,993 1,596 2,766 236 10 6,878 328 572 297 365 114 7 1,684 8,562
Wisconsin 195 3,902 4,068 7,719 648 288 16,819 1,283 2,003 1,078 1,147 481 39 6,031 22,851
Wyoming 168 1,413 1,170 1,158 28 - 3,938 310 323 161 129 45 4 971 4,909
U.S. Total 50,719 148,751 105,683 208,827 23,789 4,355 542,124 32,153 69,161 50,923 66,227 39,521 10,654 268,640 810,764
Puerto Rico 7 107 127 281 51 17 591 177 525 361 576 348 56 2,043 2,634
Grand Total 50,726 148,858 105,809 209,109 23,840 4,372 542,714 32,330 69,687 51,284 66,803 39,869 10,711 270,683 813,398

(1) Unreported AADT values included in lowest category for each grouping.

 

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