The World’s Longest Bridge Will Be 25 Miles Long

By John Farrier in Architecture on Sep 26, 2009 at 9:10 pm


Image: Artist’s Rendering, MENA Infrustructure

The Qatar-Bahrain Friendship Causeway will connect the Persian Gulf states of Qatar and Bahrain over a 40 km causeway. Construction is scheduled to begin next year at a cost of $2.3 billion. The structure will include both a roadway and a railway, and will reduce travel time between the nations to a mere 30 minutes. Once completed it will become the longest bridge in the world, surpassing the Lake Pontchartrain Causeway in the U.S., which is 38 km long. At the link, you can view a comparative graphic.

Link via Gizmodo


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  1. XsTatiC
    Sep 26th, 2009 at 9:21 pm

    40km = 25 miles… not 13

  2. ernest
    Sep 26th, 2009 at 9:24 pm

    crap… I think it would be worthwhile to add a scenic detour to the Ponchartrain causeway.

  3. SenorMysterioso
    Sep 26th, 2009 at 9:55 pm

    I wonder the plus and minuses of a bridge vs a tunnel

  4. David Govett
    Sep 26th, 2009 at 11:13 pm

    If they angled it downhill both ways, you could coast to your destination.

  5. wit of a twit
    Sep 26th, 2009 at 11:55 pm

    How Tall will it be?

  6. Michael W
    Sep 27th, 2009 at 12:49 am

    Fairly tall at its peak to clear shipping, there were talks about lowering its gradient to make it more suited to rail traffic.

    What is the over/under on the first abutment strike?

  7. Foreigner1
    Sep 27th, 2009 at 3:24 am

    …And how long is it by foot if for some reason the car refuses to go any further…? And if the car hicks- do you get congestion of international proportions…?

  8. AuntieJan
    Sep 27th, 2009 at 8:39 am

    what a tempting target for terrorists.

  9. ShowerKitty
    Sep 27th, 2009 at 12:23 pm

    the bridge will totally mess up the ecosystem there alls messing around with the currents and stuff.

  10. FishBottleT
    Sep 27th, 2009 at 1:17 pm

    I hope that they have a pit stop or gas station nearby.

  11. redphone
    Sep 27th, 2009 at 6:39 pm

    It’s only 40k, fish. If you can’t hold it 30 minutes or remember to gas up before hand… well, I have nothing to say, so I’ll just mock you silently. ;)

  12. G
    Sep 30th, 2009 at 12:42 pm

    I wanted to say the same thing about pit stops and gas stations because that’s the first thing I thought!


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