swap_horiz Flathead Tunnel Alternatives

1

Gotthard Base Tunnel

The Gotthard Base Tunnel is a major Alpine railway infrastructure project in Switzerland, officially opened for full ser...

Switzerland Alpine Rail World Longest Rail

9.2 Excellent

2

Seikan Tunnel

The Seikan Tunnel is a 53.85-kilometre railway tunnel located in Japan, connecting the main island of Honshu with the no...

Japan Hokkaido Rail Shinkansen

9.2 Excellent

3

Channel Tunnel

The Channel Tunnel is a 50.46-kilometre undersea railway line that crosses the English Channel, providing a direct land...

Cross Channel Rail UK France Undersea

9.2 Excellent

4

Thames Tunnel

The Thames Tunnel is a historic underwater passage constructed beneath the River Thames in London, connecting the distri...

Historic UK London Rail

9.2 Excellent

5

Simplon Tunnel

The Simplon Tunnel is a railway tunnel that connects Switzerland and Italy through the Alps, linking the town of Brig wi...

19TH Century Historic Alpine Rail

9.1 Excellent

6

Marmaray Tunnel

The Marmaray Tunnel is a 76-kilometer commuter rail and metro corridor in Istanbul, Turkey, of which roughly 13.4 kilome...

Turkey Bosphorus Istanbul Rail

9.1 Excellent

7

Holland Tunnel

The Holland Tunnel is a vehicular tunnel crossing beneath the Hudson River, connecting Jersey City, New Jersey, with Low...

USA New York Road Hudson River

8.9 Great

8

Chesapeake Bay Bridge-Tunnel

The Chesapeake Bay Bridge-Tunnel is a 23-mile (37 km) fixed-link crossing that connects Virginia's Eastern Shore with th...

USA Virginia Road Chesapeake

8.9 Great

9

Crossrail Tunnels

The Crossrail tunnels are a network of twin-bore passages stretching roughly 21 kilometers beneath central London, formi...

UK London Urban Rail

8.9 Great

10

Lötschberg Base Tunnel

The Lötschberg Base Tunnel is a major railway tunnel spanning 34.6 kilometers through the Bernese Alps in Switzerland. C...

Switzerland Alpine Rail Bls

8.8 Great

11

Cascade Tunnel

The Cascade Tunnel refers to the 7.79-mile (12.5-kilometer) railroad tunnel through the Cascade Range in Washington stat...

USA Rail Washington State Bnsf

8.7 Great

12

New Cascade Tunnel

The New Cascade Tunnel is a 7.79-mile (12.5-kilometer) railroad tunnel through the Cascade Range in Washington state, op...

USA Rail Washington State Bnsf

8.7 Great

13

Moffat Tunnel

A railroad tunnel completed in 1928 beneath the Continental Divide in Colorado, built for the Denver and Salt Lake Railr...

USA Historic Colorado Continental Divide

8.5 Great

14

Hoosac Tunnel

A Massachusetts railroad tunnel completed in 1875 after more than two decades of construction; at nearly 5 miles it was...

USA 19TH Century Historic Rail

8.3 Great

15

Blue Ridge Tunnel

The Blue Ridge Tunnel is a historic 19th-century railroad engineering project that successfully pierced the Blue Ridge M...

USA 19TH Century Historic Virginia

8.2 Great

16

Second Avenue Subway Tunnel

The Second Avenue Subway Tunnel is a major transportation infrastructure project beneath the East Side of Manhattan in N...

USA New York Rail Metro

7.8 Good

17

Stampede Tunnel

The Stampede Tunnel is a railroad tunnel completed in 1888 through Stampede Pass in Washington State's Cascade Mountains...

USA Rail Cascade Range Washington State

7.3 Good

18

East Side Access Tunnel

The East Side Access Tunnel is a major transportation infrastructure project in New York City that connects Long Island...

USA New York Rail Lirr

7.2 Good

19

Cascade Tunnel (old)

The original Cascade Tunnel was a 2.63-mile Great Northern Railway tunnel through Washington's Cascade Mountains, comple...

USA Historic Rail Washington State

6.9 Fair

20

Cross Harbor Tunnel

A long-proposed freight rail tunnel beneath New York Harbor connecting Brooklyn to New Jersey, studied for decades as a...

USA New York Rail Freight

5.8 Mediocre