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Bridges & Structures

 

2018 Tunnel Counts by State

12/31/2018

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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 20,606 107,750 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 3 3 14,020 14,465 11,486 606 1 1 13,300 13,300 836 9 3 3 14,020 14,465 11,486 606 1 1 13,300 13,300 836 9
ARIZONA 4 5 5,609 39,655 248,694 10,724 1 2 2,582 30,984 232,425 9,000 3 4 5,199 38,835 244,573 10,287 1 2 2,582 30,984 232,425 9,000
ARKANSAS 1 2 1,594 6,376 20,000 5,200 1 2 1,594 6,376 20,000 5,200 1 2 1,594 6,376 20,000 5,200 1 2 1,594 6,376 20,000 5,200
CALIFORNIA 90 96 86,533 212,321 3,834,332 120,849 37 42 52,167 135,917 2,110,707 48,238 53 57 64,059 173,729 3,583,293 115,175 29 32 46,019 122,167 2,010,010 46,285
COLORADO 41 41 42,253 83,608 345,419 36,137 6 6 27,467 55,644 113,809 11,742 13 13 32,536 65,821 265,400 31,018 5 5 26,757 53,514 89,200 10,512
CONNECTICUT 3 5 2,522 12,876 218,800 18,800 1 2 822 6,576 125,600 17,500 3 5 2,522 12,876 218,800 18,800 1 2 822 6,576 125,600 17,500
DELAWARE - - - - - - - - - - - - - - - - - - - - - - - -
DISTRICT OF COLUMBIA 17 26 12,635 53,095 546,645 13,205 4 6 6,979 32,376 266,700 3,597 16 25 12,486 52,946 546,595 13,203 4 6 6,979 32,376 266,700 3,597
FLORIDA 2 3 4,844 19,376 73,369 3,067 2 3 4,844 19,376 73,369 3,067 2 3 4,844 19,376 73,369 3,067 2 3 4,844 19,376 73,369 3,067
GEORGIA 1 3 667 4,002 111,470 1,115 1 3 667 4,002 111,470 1,115 1 3 667 4,002 111,470 1,115 1 3 667 4,002 111,470 1,115
GUAM - - - - - - - - - - - - - - - - - - - - - - - -
HAWAII 11 11 22,360 45,074 465,474 23,275 4 4 18,260 36,520 155,120 7,756 11 11 22,360 45,074 465,474 23,275 4 4 18,260 36,520 155,120 7,756
IDAHO 10 10 4,782 4,782 1,531 87 - - - - - - - - - - - - - - - - - -
ILLINOIS 4 5 2,420 9,480 150,315 7,608 2 2 1,280 1,280 14,700 828 3 3 2,020 8,680 150,300 7,608 2 2 1,280 1,280 14,700 828
INDIANA 5 5 1,604 6,416 54,976 2,747 - - - - - - 1 1 290 1,160 10,927 546 - - - - - -
IOWA 1 1 150 300 1,000 20 - - - - - - - - - - - - - - - - - -
KANSAS - - - - - - - - - - - - - - - - - - - - - - - -
KENTUCKY 9 12 7,726 28,711 110,167 11,362 2 4 6,540 26,160 27,300 3,156 2 4 2,120 8,480 100,608 10,486 1 2 1,680 6,720 21,300 2,556
LOUISIANA 3 3 2,840 7,840 132,300 13,598 - - - - - - 3 3 2,840 7,840 132,300 13,598 - - - - - -
MAINE - - - - - - - - - - - - - - - - - - - - - - - -
MARYLAND 5 9 15,200 88,738 200,125 23,814 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 44 44 85,736 204,032 2,588,657 186,004 44 44 85,736 204,032 2,588,657 186,004 40 40 75,696 183,501 2,520,379 181,738 40 40 75,696 183,501 2,520,379 181,738
MICHIGAN 9 9 11,992 45,262 171,923 4,356 6 6 10,430 38,866 127,723 3,806 5 5 8,896 36,858 122,960 3,426 4 4 8,628 34,446 95,860 3,226
MINNESOTA 5 8 5,816 21,864 270,746 13,486 - - - - - - 5 8 5,816 21,864 270,746 13,486 - - - - - -
MISSISSIPPI - - - - - - - - - - - - - - - - - - - - - - - -
MISSOURI 1 1 1,420 5,680 20,327 1,016 1 1 1,420 5,680 20,327 1,016 1 1 1,420 5,680 20,327 1,016 1 1 1,420 5,680 20,327 1,016
MONTANA 4 4 1,706 2,296 2,510 325 - - - - - - - - - - - - - - - - - -
NEBRASKA 3 3 505 1,010 225 24 - - - - - - - - - - - - - - - - - -
NEVADA 6 6 8,876 23,210 115,750 11,140 - - - - - - 6 6 8,876 23,210 115,750 11,140 - - - - - -
NEW HAMPSHIRE - - - - - - - - - - - - - - - - - - - - - - - -
NEW JERSEY 5 9 21,605 104,112 539,064 9,144 5 9 21,605 104,112 539,064 9,144 4 8 19,699 96,488 514,474 8,160 4 8 19,699 96,488 514,474 8,160
NEW MEXICO 3 3 804 1,333 4,888 24 - - - - - - - - - - - - - - - - - -
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 72,120 10,097 1 1 855 5,130 72,120 10,097 1 1 855 5,130 72,120 10,097 1 1 855 5,130 72,120 10,097
OKLAHOMA - - - - - - - - - - - - - - - - - - - - - - - -
OREGON 14 14 10,590 23,030 105,401 11,665 - - - - - - 9 9 9,016 20,082 70,500 9,933 - - - - - -
PENNSYLVANIA 26 27 83,706 169,780 549,618 95,506 20 20 80,361 160,722 471,301 93,731 6 6 27,474 54,948 216,557 12,681 6 6 27,474 54,948 216,557 12,681
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 1,800 3,600 102 101 - - - - - - - - - - - - - - - - - -
SOUTH CAROLINA - - - - - - - - - - - - - - - - - - - - - - - -
SOUTH DAKOTA 7 7 747 824 6,618 257 - - - - - - - - - - - - - - - - - -
TENNESSEE 13 13 7,987 23,415 202,594 18,116 1 1 1,089 7,623 29,000 2,320 7 7 5,567 13,130 137,462 12,942 - - - - - -
TEXAS 5 5 5,771 10,658 38,175 60 2 2 4,586 9,172 26,275 55 3 3 3,820 6,756 31,700 - 1 1 2,936 5,872 20,000 -
U.S. VIRGIN ISLANDS - - - - - - - - - - - - - - - - - - - - - - - -
UTAH 6 6 6,832 13,664 38,320 1,962 - - - - - - 6 6 6,832 13,664 38,320 1,962 - - - - - -
VERMONT - - - - - - - - - - - - - - - - - - - - - - - -
VIRGINIA 17 19 61,177 156,300 460,028 26,590 12 14 57,161 145,620 410,078 25,900 9 11 38,269 110,484 394,000 23,210 8 10 37,607 106,512 362,000 22,570
WASHINGTON 57 63 31,943 114,861 1,439,921 83,617 9 13 12,742 71,555 686,076 38,636 39 45 25,034 99,019 1,260,414 72,540 8 12 12,117 69,055 679,543 38,505
WEST VIRGINIA 10 12 13,380 35,368 78,649 12,373 3 5 8,439 29,976 69,515 12,050 2 4 7,179 28,716 69,500 12,050 2 4 7,179 28,716 69,500 12,050
WISCONSIN - - - - - - - - - - - - - - - - - - - - - - - -
WYOMING 10 10 7,050 14,100 34,056 8,363 - - - - - - 10 10 7,050 14,100 34,056 8,363 - - - - - -
Total 503 559 666,858 1,853,104 14,172,418 839,607 182 221 485,669 1,437,643 9,227,927 555,358 283 334 481,715 1,468,486 12,714,241 706,583 138 174 376,946 1,190,519 8,531,371 457,138

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Updated: 03/12/2021
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