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Highway Statistics Series

Highway Statistics 1998

FEDERAL - AID HIGHWAY LENGTH - 1998
  MILES BY TYPE OF SURFACE 1/

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OCTOBER 1999
Table HM-31
Sheet 1 of 2

STATE NATIONAL HIGHWAY SYSTEM
INTERSTATE SYSTEM OTHER TOTAL RURAL AND URBAN
RURAL URBAN RURAL URBAN
PAVED 2/ PAVED 2/ PAVED 2/ PAVED 2/ PAVED 2/
HIGH TYPE TOTAL HIGH TYPE TOTAL LOW TYPE INTERMEDIATE TYPE HIGH TYPE TOTAL LOW TYPE INTERMEDIATE TYPE HIGH TYPE TOTAL LOW TYPE INTERMEDIATE TYPE HIGH TYPE TOTAL
FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID
Alabama 414 42 145 601 156 18 130 304 0 7 2,021 19 0 2,047 0 20 662 6 5 693 0 27 3,253 85 280 3,645
Alaska 1,030 0 0 1,030 53 0 0 53 184 751 11 0 0 946 0 65 7 0 0 72 184 816 1,101 0 0 2,101
Arizona 986 0 11 997 104 16 52 172 42 287 807 0 0 1,136 0 21 224 0 83 328 42 308 2,121 16 146 2,633
Arkansas 8 95 291 394 3 15 130 148 0 0 1,507 267 47 1,821 0 5 154 23 72 254 0 5 1,672 400 540 2,617
California 528 107 722 1,357 135 201 734 1,070 0 40 2,933 204 350 3,527 0 5 669 201 571 1,446 0 45 4,265 713 2,377 7,400
Colorado 458 58 253 769 92 37 56 185 0 0 1,816 15 3 1,834 0 1 483 55 31 570 0 1 2,849 165 343 3,358
Connecticut 49 49 3 101 58 179 8 245 0 0 92 161 0 253 0 0 101 247 14 362 0 0 300 636 25 961
Delaware 0 0 0 0 0 17 24 41 0 0 2 120 74 196 0 4 1 35 23 63 0 4 3 172 121 300
Dist. of Columbia 0 0 0 0 0 12 0 12 0 0 0 0 0 0 0 0 15 45 4 64 0 0 15 57 4 76
Florida 801 0 152 953 380 0 129 509 0 0 1,752 0 10 1,762 0 0 1,003 0 36 1,039 0 0 3,936 0 327 4,263
Georgia 274 0 516 790 258 0 176 434 0 0 2,479 0 12 2,491 0 0 740 0 31 771 0 0 3,751 0 735 4,486
Hawaii 0 0 6 6 24 0 25 49 0 0 139 0 0 139 0 0 106 0 0 106 0 0 269 0 31 300
Idaho 423 3 101 527 51 0 35 86 0 75 1,543 0 36 1,654 0 6 76 0 11 93 0 81 2,093 3 183 2,360
Illinois 41 866 611 1,518 10 471 159 640 0 0 74 1,681 103 1,858 5 0 70 1,185 398 1,658 5 0 195 4,203 1,271 5,674
Indiana 3/ 88 664 100 852 7 252 60 319 0 0 312 797 167 1,276 0 12 68 203 91 374 0 12 475 1,916 418 2,821
Iowa 58 236 341 635 12 53 81 146 0 0 163 1,166 658 1,987 0 0 24 127 189 340 0 0 257 1,582 1,269 3,108
Kansas 548 55 95 698 39 12 123 174 0 19 2,242 145 234 2,640 0 1 96 36 100 233 0 20 2,925 248 552 3,745
Kentucky 148 223 165 536 68 42 116 226 0 0 1,052 390 284 1,726 0 3 210 98 77 388 0 3 1,478 753 642 2,876
Louisiana 108 88 351 547 32 34 167 233 0 0 334 752 83 1,169 0 0 138 208 123 469 0 0 612 1,082 724 2,418
Maine 306 3 4 313 53 0 0 53 12 128 645 0 2 787 0 14 118 1 1 134 12 142 1,122 4 7 1,287
Maryland 225 2 2 229 180 19 52 251 0 0 548 2 8 558 0 1 345 3 40 389 0 1 1,298 26 102 1,427
Massachusetts 161 1 0 162 386 9 8 403 0 0 280 44 0 324 0 90 828 131 0 1,049 0 90 1,655 185 8 1,938
Michigan 113 180 447 740 6 284 210 500 0 0 664 1,411 217 2,292 0 0 127 606 439 1,172 0 0 910 2,481 1,313 4,704
Minnesota 98 133 450 681 8 104 117 229 0 445 999 804 329 2,577 0 67 162 116 115 460 0 512 1,267 1,157 1,011 3,947
Mississippi 217 145 194 556 21 51 56 128 0 10 829 607 229 1,675 0 0 164 42 42 248 0 10 1,231 845 521 2,607
Missouri 0 523 284 807 8 278 85 371 0 38 422 1,314 794 2,568 0 1 111 178 310 600 0 39 541 2,293 1,473 4,346
Montana 1,033 0 102 1,135 34 0 23 57 66 293 2,231 10 5 2,605 0 7 48 0 7 62 66 300 3,346 10 137 3,859
Nebraska 0 219 218 437 0 11 34 45 23 51 1,184 425 580 2,263 0 0 25 57 162 244 23 51 1,209 712 994 2,989
Nevada 345 37 98 480 25 7 53 85 0 0 1,413 0 0 1,413 0 0 90 0 8 98 0 0 1,873 44 159 2,076
New Hampshire 176 0 0 176 48 0 0 48 34 24 381 17 0 456 0 7 97 10 0 114 34 31 702 27 0 794
New Jersey 64 51 4 119 162 58 81 301 0 0 163 366 2 531 0 0 394 630 56 1,080 0 0 783 1,105 143 2,031
New Mexico 767 109 16 892 70 25 12 107 0 118 1,622 0 2 1,742 0 29 144 3 3 179 0 147 2,603 137 33 2,920
New York 304 416 77 797 40 454 207 701 0 0 561 1,129 280 1,970 0 13 322 1,126 155 1,616 0 13 1,227 3,125 719 5,084
North Carolina 297 45 293 635 131 71 150 352 0 0 2,100 23 49 2,172 0 0 388 14 54 456 0 0 2,916 153 546 3,615
North Dakota 0 52 479 531 0 5 35 40 0 15 1,919 22 134 2,090 0 0 43 5 15 63 0 15 1,962 84 663 2,724
Ohio 68 716 45 829 78 557 106 741 0 0 714 1,006 113 1,833 0 0 305 529 74 908 0 0 1,165 2,808 338 4,311
Oklahoma 395 41 285 721 97 3 109 209 82 0 1,174 192 658 2,106 0 0 84 25 165 274 82 0 1,750 261 1,217 3,310
Oregon 385 23 173 581 40 13 88 141 0 129 2,528 11 8 2,676 0 5 356 18 13 392 0 134 3,309 65 282 3,790
Pennsylvania 129 623 449 1,201 58 284 207 549 0 11 520 1,183 544 2,258 6 17 278 669 449 1,419 6 28 985 2,759 1,649 5,427
Rhode Island 6 15 0 21 33 14 0 47 0 27 35 4 0 66 0 15 100 5 1 121 0 42 174 38 1 255
South Carolina 409 0 263 672 91 0 63 154 0 365 529 379 0 1,273 0 29 345 95 1 470 0 394 1,374 474 327 2,569
South Dakota 29 21 579 629 0 2 48 50 0 5 1,366 92 727 2,190 0 0 14 6 41 61 0 5 1,409 121 1,395 2,930
Tennessee 665 63 5 733 135 157 47 339 0 0 1,032 449 0 1,481 0 0 476 117 30 623 0 0 2,308 786 82 3,176
Texas 1,333 549 333 2,215 322 285 412 1,019 0 11 5,054 1,132 213 6,410 13 34 2,010 613 771 3,441 13 45 8,719 2,579 1,729 13,085
Utah 674 0 97 771 71 0 96 167 0 0 1,003 0 6 1,009 0 1 202 0 16 219 0 1 1,950 0 215 2,166
Vermont 280 0 0 280 40 0 0 40 0 0 316 0 2 318 0 0 53 0 2 55 0 0 689 0 4 693
Virginia 556 51 105 712 131 56 196 383 0 0 1,270 71 109 1,450 0 0 691 56 84 831 0 0 2,648 234 494 3,376
Washington 313 27 161 501 137 3 123 263 0 28 1,946 13 93 2,080 0 0 482 22 35 539 0 28 2,878 65 412 3,383
West Virginia 4 260 192 456 0 58 36 94 0 0 833 44 197 1,074 0 0 74 14 27 115 0 0 911 376 452 1,739
Wisconsin 0 269 304 573 0 88 74 162 0 23 1,108 826 683 2,640 0 29 95 216 404 744 0 52 1,203 1,399 1,465 4,119
Wyoming 661 1 165 827 27 0 60 87 8 40 1,857 46 7 1,958 0 0 68 0 10 78 8 40 2,613 47 242 2,950
U.S. Total 15,975 7,061 9,687 32,723 3,914 4,255 4,993 13,162 451 2,940 56,525 17,339 8,052 85,307 24 502 13,886 7,776 5,389 27,577 475 3,442 90,300 36,431 28,121 158,769
Puerto Rico 29 30 43 102 69 21 58 148 0 0 21 2 23 46 0 0 48 18 22 88 0 0 167 71 146 384
Grand Total 16,004 7,091 9,730 32,825 3,983 4,276 5,051 13,310 451 2,940 56,546 17,341 8,075 85,353 24 502 13,934 7,794 5,411 27,665 475 3,442 90,467 36,502 28,267 159,153

October 1999
Sheet 2 of 2
Table HM-31

STATE OTHER FEDERAL - AID HIGHWAYS - RURAL OTHER FEDERAL - AID HIGHWAYS - URBAN OTHER FEDERAL - AID HIGHWAYS - TOTAL
UNPAVED PAVED 2/ TOTAL UNPAVED PAVED 2/ TOTAL UNPAVED PAVED 2/ TOTAL
LOW TYPE INTERMEDIATE TYPE HIGH TYPE TOTAL LOW TYPE INTERMEDIATE TYPE HIGH  TYPE TOTAL LOW TYPE INTERMEDIATE TYPE HIGH TYPE TOTAL
FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID FLEXIBLE COMPOSITE RIGID
Alabama 216 3,091 3,611 8,437 125 0 15,264 15,480 2 292 1,424 2,569 118 47 4,450 4,452 218 3,383 5,035 11,006 243 47 19,714 19,932
Alaska 809 70 886 8 0 0 964 1,773 10 1 390 9 0 0 400 410 819 71 1,276 17 0 0 1,364 2,183
Arizona 131 416 2,472 2,752 8 0 5,648 5,779 98 505 1,439 1,787 4 12 3,747 3,845 229 921 3,911 4,539 12 12 9,395 9,624
Arkansas 980 894 3,531 9,990 459 0 14,874 15,854 9 159 272 1,683 257 34 2,405 2,414 989 1,053 3,803 11,673 716 34 17,279 18,268
California 398 380 4,154 14,606 337 91 19,568 19,966 116 215 2,367 21,939 878 562 25,961 26,077 514 595 6,521 36,545 1,215 653 45,529 46,043
Colorado 679 182 2,978 5,997 135 39 9,331 10,010 83 51 1,455 1,481 47 106 3,140 3,223 762 233 4,433 7,478 182 145 12,471 13,233
Connecticut 0 23 98 1,438 150 0 1,709 1,709 0 147 135 2,385 408 14 3,089 3,089 0 170 233 3,823 558 14 4,798 4,798
Delaware 0 11 145 58 459 1 674 674 0 7 119 84 177 72 459 459 0 18 264 142 636 73 1,133 1,133
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0 0 59 254 27 340 340 0 0 0 59 254 27 340 340
Florida 0 0 0 8,643 0 7 8,650 8,650 0 0 0 10,847 0 115 10,962 10,962 0 0 0 19,490 0 122 19,612 19,612
Georgia 392 1,988 1,818 15,140 0 3 18,949 19,341 0 18 439 5,749 0 54 6,260 6,260 392 2,006 2,257 20,889 0 57 25,209 25,601
Hawaii 0 5 3 736 0 0 744 744 0 0 0 510 0 1 511 511 0 5 3 1,246 0 1 1,255 1,255
Idaho 1,553 1,027 1,483 2,603 0 0 5,113 6,666 15 70 95 1,044 2 7 1,218 1,233 1,568 1,097 1,578 3,647 2 7 6,331 7,899
Illinois 387 3,008 135 6,980 8,446 786 19,355 19,742 47 757 369 2,453 4,003 919 8,501 8,548 434 3,765 504 9,433 12,449 1,705 27,856 28,290
Indiana 3/ 14 20 5,970 5,953 999 286 13,228 13,242 47 64 3,034 1,815 600 303 5,816 5,863 61 84 9,004 7,768 1,599 589 19,044 19,105
Iowa 1,354 252 25 5,981 5,395 6,685 18,338 19,692 81 54 10 678 852 1,050 2,644 2,725 1,435 306 35 6,659 6,247 7,735 20,982 22,417
Kansas 11,815 2,432 8,208 5,160 54 133 15,987 27,802 56 0 894 992 370 338 2,594 2,650 11,871 2,432 9,102 6,152 424 471 18,581 30,452
Kentucky 0 14 1,180 6,672 891 29 8,786 8,786 0 1 507 1,647 412 91 2,658 2,658 0 15 1,687 8,319 1,303 120 11,444 11,444
Louisiana 0 0 444 6,418 1,469 138 8,469 8,469 0 0 224 1,493 570 513 2,800 2,800 0 0 668 7,911 2,039 651 11,269 11,269
Maine 0 2,121 1,426 742 7 0 4,296 4,296 0 170 351 288 3 3 815 815 0 2,291 1,777 1,030 10 3 5,111 5,111
Maryland 0 0 79 2,695 0 2 2,776 2,776 0 4 67 3,058 42 22 3,193 3,193 0 4 146 5,753 42 24 5,969 5,969
Massachusetts 0 7 818 1,583 56 0 2,464 2,464 0 65 1,838 4,234 106 3 6,246 6,246 0 72 2,656 5,817 162 3 8,710 8,710
Michigan 1,007 1,353 2,420 11,722 3,908 1,031 20,434 21,441 147 346 821 3,455 1,406 848 6,876 7,023 1,154 1,699 3,241 15,177 5,314 1,879 27,310 28,464
Minnesota 1,212 104 10,107 10,565 129 1,289 22,194 23,406 14 6 2,584 753 204 250 3,797 3,811 1,226 110 12,691 11,318 333 1,539 25,991 27,217
Mississippi 0 2,370 6,653 6,290 802 29 16,144 16,144 0 43 531 1,279 73 98 2,024 2,024 0 2,413 7,184 7,569 875 127 18,168 18,168
Missouri 0 6,121 8,828 4,297 1,816 585 21,647 21,647 54 114 981 1,752 786 366 3,999 4,053 54 6,235 9,809 6,049 2,602 951 25,646 25,700
Montana 2,170 347 2,909 4,622 3 0 7,881 10,051 18 4 198 399 0 8 609 627 2,188 351 3,107 5,021 3 8 8,490 10,678
Nebraska 4,914 509 2,710 6,378 774 857 11,228 16,142 8 6 59 371 201 494 1,131 1,139 4,922 515 2,769 6,749 975 1,351 12,359 17,281
Nevada 60 0 193 2,500 0 0 2,693 2,753 6 0 116 1,293 0 1 1,410 1,416 66 0 309 3,793 0 1 4,103 4,169
New Hampshire 0 583 38 1,003 23 0 1,647 1,647 0 113 0 654 41 0 808 808 0 696 38 1,657 64 0 2,455 2,455
New Jersey 0 0 62 1,375 630 3 2,070 2,070 0 0 140 4,429 1,112 42 5,723 5,723 0 0 202 5,804 1,742 45 7,793 7,793
New Mexico 163 0 1,672 4,022 21 2 5,717 5,880 19 0 189 856 4 31 1,080 1,099 182 0 1,861 4,878 25 33 6,797 6,979
New York 0 0 1,181 5,529 3,506 118 10,334 10,334 0 7 1,325 3,951 4,563 682 10,528 10,528 0 7 2,506 9,480 8,069 800 20,862 20,862
North Carolina 0 516 0 11,004 145 169 11,834 11,834 0 203 0 4,859 38 45 5,145 5,145 0 719 0 15,863 183 214 16,979 16,979
North Dakota 4,358 1,289 928 7,822 2 47 10,088 14,446 36 13 153 256 27 119 568 604 4,394 1,302 1,081 8,078 29 166 10,656 15,050
Ohio 0 204 534 12,297 1,969 34 15,038 15,038 0 0 439 5,704 1,872 256 8,271 8,271 0 204 973 18,001 3,841 290 23,309 23,309
Oklahoma 4,964 6,702 2,542 8,270 940 962 19,416 24,380 62 1,410 383 996 93 578 3,460 3,522 5,026 8,112 2,925 9,266 1,033 1,540 22,876 27,902
Oregon 843 228 2,950 7,398 14 35 10,625 11,468 6 13 137 2,506 33 53 2,742 2,748 849 241 3,087 9,904 47 88 13,367 14,216
Pennsylvania 0 0 704 7,898 4,564 243 13,409 13,409 0 52 1,757 4,302 1,938 252 8,301 8,301 0 52 2,461 12,200 6,502 495 21,710 21,710
Rhode Island 6 0 184 36 17 9 246 252 0 7 839 279 13 5 1,143 1,143 6 7 1,023 315 30 14 1,389 1,395
South Carolina 0 0 8,705 3,100 232 4 12,041 12,041 0 2 1,750 877 58 16 2,703 2,703 0 2 10,455 3,977 290 20 14,744 14,744
South Dakota 4,845 3,492 2,922 4,678 94 104 11,290 16,135 17 142 205 34 10 133 524 541 4,862 3,634 3,127 4,712 104 237 11,814 16,676
Tennessee 0 0 0 8,328 730 0 9,058 9,058 0 37 7 3,944 612 39 4,639 4,639 0 37 7 12,272 1,342 39 13,697 13,697
Texas 0 649 260 42,836 1,779 136 45,660 45,660 46 1,253 2,280 10,702 1,396 2,257 17,888 17,934 46 1,902 2,540 53,538 3,175 2,393 63,548 63,594
Utah 410 0 814 3,620 0 3 4,437 4,847 3 0 459 638 1 42 1,140 1,143 413 0 1,273 4,258 1 45 5,577 5,990
Vermont 0 381 56 2,282 0 2 2,721 2,721 12 81 39 285 0 5 410 422 12 462 95 2,567 0 7 3,131 3,143
Virginia 0 4,084 1,175 7,921 177 4 13,361 13,361 0 324 95 3,579 133 69 4,200 4,200 0 4,408 1,270 11,500 310 73 17,561 17,561
Washington 171 48 3,238 6,767 71 35 10,159 10,330 6 3 874 3,604 341 236 5,058 5,064 177 51 4,112 10,371 412 271 15,217 15,394
West Virginia 0 629 275 6,608 14 16 7,542 7,542 0 15 19 814 20 88 956 956 0 644 294 7,422 34 104 8,498 8,498
Wisconsin 0 0 10,033 7,062 1,756 380 19,231 19,231 0 0 1,640 800 782 1,021 4,243 4,243 0 0 11,673 7,862 2,538 1,401 23,474 23,474
Wyoming 50 224 121 3,333 35 8 3,721 3,771 18 6 90 602 0 51 749 767 68 230 211 3,935 35 59 4,470 4,538
U.S. Total 43,901 45,774 111,678 322,155 43,141 14,305 537,053 580,954 1,036 6,780 33,539 130,777 24,860 12,378 208,334 209,370 44,937 52,554 145,217 452,932 68,001 26,683 745,387 790,324
Puerto Rico 0 0 34 1,101 0 0 1,135 1,135 0 0 26 1,217 1 65 1,309 1,309 0 0 60 2,318 1 65 2,444 2,444
Grand Total 43,901 45,774 111,712 323,256 43,141 14,305 538,188 582,089 1,036 6,780 33,565 131,994 24,861 12,443 209,643 210,679 44,937 52,554 145,277 455,250 68,002 26,748 747,831 792,768

1/ Some differences from other tables may be noted because these are estimated from sample data and do not include structures.

2/ Although the Interstate System is part of the National Highway System, its mileage is shown separately.

3/ Paved mileage includes the following categories: Low Type, an earth, gravel, or stone roadway which has a bituminous surface course less than 1" thick*suitable for occasional heavy loads; Intermediate Type, a mixed bituminous or bituminous penetration roadway on a flexible base having a combined surface and base thickness of less than 7"; High-Type Flexible, a mixed bituminous or bituminous penetration roadway on a flexible base with a combined surface thickness of 7" or more *also includes brick, block, or combination roadways; High-Type Composite, a mixed bituminous or bituminous penetration roadway of more than 1" compacted material on a rigid base with a combined surface and base thickness of 7" or more; High-Type Rigid, a Portland Cement Concrete roadway with or without a bituminous wearing surface of less than 1".

4/ Includes Intermediate type pavement for Alaska (825 miles) and New Mexico (39 miles).

5/ Includes unpaved roads in Alaska – 184 miles.

6/ Unpaved mileage includes the following categories: Unimproved roadways using the natural surface and maintained to permit passability; Graded and Drained roadways of natural earth aligned and graded to permit reasonably convenient use by motor vehicles and which have adequate drainage to prevent serious impairment of the road by normal surface water* surface may be stabilized; and Soil, Gravel, or Stone, a graded and drained roadway with a surface of mixed soil, gravel, crushed stone, slag, shell, etc.* surface may be stabilized.