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Bridges & Structures

 

2023 Tunnel Counts by State

07/07/2023

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State Name ALL TUNNELS COMPLEX TUNNELS NHS TUNNELS NHS COMPLEX TUNNELS
Tunnel Count Number of Bores Total Length (ft) Total Length of All Lanes (ft) Total AADT Total AADTT Tunnel Count Number of Bores Total Length (ft) Total Length of All Lanes (ft) Total AADT Total AADTT Tunnel Count Number of Bores Total Length (ft) Total Length of All Lanes (ft) Total AADT Total AADTT Tunnel Count Number of Bores Total Length (ft) Total Length of All Lanes (ft) Total AADT Total AADTT
ALABAMA 4 5 7,175 19,945 107,750 12,598 2 3 6,109 18,218 92,750 11,298 2 3 6,109 18,218 92,750 11,298 2 3 6,109 18,218 92,750 11,298
ALASKA 4 4 14,700 15,825 8,148 663 1 1 13,300 13,300 1,056 9 3 3 14,020 14,465 8,097 662 1 1 13,300 13,300 1,056 9
ARIZONA 7 11 6,241 40,919 260,078 11,415 1 3 2,582 30,984 236,488 9,503 3 5 5,199 38,835 249,776 10,785 1 3 2,582 30,984 236,488 9,503
ARKANSAS 1 2 1,595 6,380 23,000 5,750 1 2 1,595 6,380 23,000 5,750 1 2 1,595 6,380 23,000 5,750 1 2 1,595 6,380 23,000 5,750
CALIFORNIA 107 109 97,683 247,594 2,487,007 109,553 44 45 62,938 161,038 1,275,413 70,724 58 59 66,935 188,894 2,285,956 103,605 34 35 53,320 139,909 1,188,053 68,071
COLORADO 42 43 43,333 94,550 551,819 50,869 7 8 28,456 66,685 291,609 28,342 16 17 34,084 77,231 477,300 45,752 6 7 27,746 64,555 267,000 27,112
CONNECTICUT 3 5 2,524 12,892 251,600 18,801 1 2 824 6,592 158,000 17,500 3 5 2,524 12,892 251,600 18,801 1 2 824 6,592 158,000 17,500
DELAWARE - - - - - - - - - - - - - - - - - - - - - - - -
DISTRICT OF COLUMBIA 17 21 13,722 63,850 594,561 24,048 4 6 8,069 43,723 243,683 9,040 14 18 12,829 62,213 576,692 23,406 4 6 8,069 43,723 243,683 9,040
FLORIDA 3 6 5,275 21,100 74,119 3,068 2 3 5,131 20,524 73,369 3,067 2 3 5,131 20,524 73,369 3,067 2 3 5,131 20,524 73,369 3,067
GEORGIA 1 3 667 4,002 110,000 1,115 - - - - - - 1 3 667 4,002 110,000 1,115 - - - - - -
GUAM - - - - - - - - - - - - - - - - - - - - - - - -
HAWAII 13 13 22,955 45,669 472,474 23,295 4 4 18,260 36,520 155,120 7,756 12 12 22,510 45,224 468,974 23,285 4 4 18,260 36,520 155,120 7,756
IDAHO 10 10 4,784 4,784 2,441 81 - - - - - - - - - - - - - - - - - -
ILLINOIS 5 6 2,660 10,440 255,300 14,019 1 1 880 880 9,200 828 3 3 2,020 8,680 251,400 13,814 1 1 880 880 9,200 828
INDIANA 6 6 1,784 6,776 55,776 2,847 - - - - - - - - - - - - - - - - - -
IOWA 1 1 150 300 1,000 20 - - - - - - - - - - - - - - - - - -
KANSAS 1 1 528 2,112 9,380 490 - - - - - - - - - - - - - - - - - -
KENTUCKY 10 14 8,278 29,815 122,319 11,341 2 4 6,540 26,160 27,300 3,156 3 6 6,980 27,920 109,852 9,986 2 4 6,540 26,160 27,300 3,156
LOUISIANA 3 4 2,840 7,840 94,287 12,225 - - - - - - 2 2 1,760 3,520 67,900 5,226 - - - - - -
MAINE - - - - - - - - - - - - - - - - - - - - - - - -
MARYLAND 5 9 15,200 88,738 200,125 23,813 2 6 14,860 88,276 200,055 23,807 2 6 14,860 88,276 200,055 23,807 2 6 14,860 88,276 200,055 23,807
MASSACHUSETTS 47 47 85,732 210,625 2,269,092 123,811 46 46 85,346 209,081 2,250,392 123,061 41 41 76,243 187,202 2,139,318 115,069 41 41 76,243 187,202 2,139,318 115,069
MICHIGAN 11 11 13,133 56,672 492,751 20,397 6 6 10,430 38,866 127,723 3,806 7 7 10,037 48,268 443,788 19,467 4 4 8,628 34,446 95,860 3,226
MINNESOTA 6 6 6,833 25,932 196,745 9,310 - - - - - - 5 5 5,816 21,864 194,245 9,060 - - - - - -
MISSISSIPPI - - - - - - - - - - - - - - - - - - - - - - - -
MISSOURI 1 1 1,419 5,676 19,768 994 1 1 1,419 5,676 19,768 994 1 1 1,419 5,676 19,768 994 1 1 1,419 5,676 19,768 994
MONTANA 5 5 2,101 3,086 22,113 327 - - - - - - 1 1 395 790 19,603 2 - - - - - -
NEBRASKA 3 3 556 1,112 225 24 - - - - - - - - - - - - - - - - - -
NEVADA 6 6 8,889 23,236 142,700 10,038 2 2 5,458 16,374 117,000 6,280 4 4 8,245 21,948 128,300 9,690 2 2 5,458 16,374 117,000 6,280
NEW HAMPSHIRE - - - - - - - - - - - - - - - - - - - - - - - -
NEW JERSEY 5 9 21,657 104,320 571,963 9,798 5 9 21,657 104,320 571,963 9,798 5 9 21,657 104,320 571,963 9,798 5 9 21,657 104,320 571,963 9,798
NEW MEXICO 3 3 804 1,333 4,888 34 - - - - - - - - - - - - - - - - - -
NEW YORK 10 15 38,956 165,986 424,730 20,429 9 14 38,373 164,820 419,450 19,901 4 9 32,181 145,156 323,576 18,180 4 9 32,181 145,156 323,576 18,180
NORTH CAROLINA 29 29 17,269 34,538 150,643 13,755 - - - - - - 4 4 4,108 8,216 50,500 10,185 - - - - - -
NORTH DAKOTA - - - - - - - - - - - - - - - - - - - - - - - -
OHIO 1 1 855 5,130 62,690 5,831 1 1 855 5,130 62,690 5,831 1 1 855 5,130 62,690 5,831 1 1 855 5,130 62,690 5,831
OKLAHOMA 6 6 2,313 5,826 19,600 3,140 - - - - - - - - - - - - - - - - - -
OREGON 15 15 10,953 23,756 101,430 10,519 1 1 363 726 3,395 - 9 9 9,016 20,082 62,750 8,747 - - - - - -
PENNSYLVANIA 28 29 92,316 188,551 421,591 56,446 20 20 87,869 175,738 325,400 51,963 16 16 77,162 154,324 316,831 51,220 16 16 77,162 154,324 316,831 51,220
PUERTO RICO 3 5 5,401 15,330 223,500 6,385 3 5 5,401 15,330 223,500 6,385 3 5 5,401 15,330 223,500 6,385 3 5 5,401 15,330 223,500 6,385
RHODE ISLAND 1 1 1,791 3,582 300 250 - - - - - - - - - - - - - - - - - -
SOUTH CAROLINA - - - - - - - - - - - - - - - - - - - - - - - -
SOUTH DAKOTA 7 7 747 824 8,436 1,110 - - - - - - - - - - - - - - - - - -
TENNESSEE 14 15 14,120 45,356 160,376 10,452 3 4 6,956 33,096 68,771 6,248 9 10 11,493 40,102 128,837 9,794 3 4 6,956 33,096 68,771 6,248
TEXAS 6 6 7,008 23,028 228,955 9,370 3 3 5,823 21,542 200,351 9,260 4 4 5,057 19,126 222,480 9,310 2 2 4,173 18,242 194,076 9,205
U.S. VIRGIN ISLANDS - - - - - - - - - - - - - - - - - - - - - - - -
UTAH 8 8 7,348 14,180 45,810 13,238 - - - - - - 6 6 6,832 13,664 45,800 13,236 - - - - - -
VERMONT - - - - - - - - - - - - - - - - - - - - - - - -
VIRGINIA 17 19 61,177 156,300 511,150 35,201 12 14 57,161 145,620 475,300 34,660 13 15 57,823 149,592 495,300 35,060 12 14 57,161 145,620 475,300 34,660
WASHINGTON 61 64 43,792 164,561 1,812,687 92,707 8 9 22,446 110,530 621,163 25,540 43 46 35,882 144,715 1,632,094 81,708 7 8 21,821 108,030 614,630 25,409
WEST VIRGINIA 11 13 13,626 35,846 68,859 11,757 2 4 7,180 28,720 60,215 11,550 2 4 7,180 28,720 60,215 11,550 2 4 7,180 28,720 60,215 11,550
WISCONSIN 5 7 4,683 12,771 52,300 5,230 - - - - - - 3 4 3,501 7,203 26,400 2,640 - - - - - -
WYOMING 10 10 7,050 14,100 42,621 10,435 - - - - - - 10 10 7,050 14,100 42,621 10,435 - - - - - -
Total 562 614 722,623 2,065,188 13,737,107 806,999 194 227 526,281 1,594,849 8,334,124 506,057 316 358 584,576 1,772,802 12,457,300 738,720 164 197 485,511 1,497,687 7,958,572 490,952

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Updated: 07/07/2023
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