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Bridges & Structures

 

2019 Tunnel Counts by State

12/31/2019

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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 3 3 14,020 14,465 8,184 606 1 1 13,300 13,300 842 9 3 3 14,020 14,465 8,184 606 1 1 13,300 13,300 842 9
ARIZONA 5 6 5,801 40,039 249,231 10,778 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 101 106 95,329 229,406 4,359,399 156,679 40 42 58,139 145,324 2,192,407 85,408 57 61 68,818 180,349 4,066,463 149,055 32 34 49,766 126,412 2,060,930 82,811
COLORADO 41 41 42,231 83,564 345,419 36,137 6 6 27,445 55,600 113,809 11,742 13 13 32,514 65,777 265,400 31,018 5 5 26,735 53,470 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 11,529 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 23,813 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 45 45 86,007 204,303 2,600,367 186,004 45 45 86,007 204,303 2,600,367 186,004 41 41 75,967 183,772 2,532,089 181,738 41 41 75,967 183,772 2,532,089 181,738
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 12,391 30,240 142,000 10,038 - - - - - - 4 4 8,245 21,948 128,700 9,690 - - - - - -
NEW HAMPSHIRE - - - - - - - - - - - - - - - - - - - - - - - -
NEW JERSEY 5 9 21,657 104,320 539,064 9,389 5 9 21,657 104,320 539,064 9,389 5 9 21,657 104,320 539,064 9,389 5 9 21,657 104,320 539,064 9,389
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 97,651 10,479 - - - - - - 9 9 9,016 20,082 62,750 8,747 - - - - - -
PENNSYLVANIA 26 27 91,211 184,790 549,668 95,509 20 20 87,866 175,732 471,301 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 3,600 300 250 - - - - - - - - - - - - - - - - - -
SOUTH CAROLINA - - - - - - - - - - - - - - - - - - - - - - - -
SOUTH DAKOTA 7 7 747 824 6,618 257 - - - - - - - - - - - - - - - - - -
TENNESSEE 14 15 12,847 42,855 208,594 18,716 2 3 5,949 27,063 35,000 2,920 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 43,600 12,912 - - - - - - 6 6 6,832 13,664 43,600 12,912 - - - - - -
VERMONT - - - - - - - - - - - - - - - - - - - - - - - -
VIRGINIA 17 19 61,177 156,300 472,862 27,416 12 14 57,161 145,620 422,912 26,560 9 11 38,269 110,484 405,000 23,820 8 10 37,607 106,512 373,000 23,180
WASHINGTON 62 68 45,886 175,028 1,847,270 89,032 10 14 24,986 122,470 725,803 27,071 44 50 37,976 155,182 1,666,677 78,033 9 13 24,361 119,970 719,270 26,940
WEST VIRGINIA 10 12 13,396 35,384 79,649 12,593 2 4 7,179 28,716 70,500 12,270 2 4 7,179 28,716 70,500 12,270 2 4 7,179 28,716 70,500 12,270
WISCONSIN - - - - - - - - - - - - - - - - - - - - - - - -
WYOMING 10 10 7,050 14,100 34,056 8,363 - - - - - - 10 10 7,050 14,100 34,056 8,363 - - - - - -
Total 522 578 705,986 1,972,010 15,157,641 891,777 187 224 515,291 1,531,590 9,380,889 582,688 292 343 500,992 1,538,066 13,659,152 756,329 144 179 395,144 1,253,738 8,670,324 484,158

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Updated: 03/12/2021
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