Floating Bridges on the Brain: The Ultimate Floating Bridge Quiz

Estimated Completion Time
2 min
Floating Bridges on the Brain: The Ultimate Floating Bridge Quiz
Image: Bruce Heinemann/Stockbyte/Getty Images

About This Quiz

If everybody had an ocean, across the U.S.A, they'd be too busy building floating bridges to play on silly surfboards. Floating bridges are indispensable tools for spanning areas other bridges can't. Ready to take on our bridge challenge?
What other name do floating bridges commonly go by?
pontoon bridges
They will float your boat -- and bridges, too! They're pontoons, watertight vessels used for boats and types of construction.
cable-stayed bridges
boat bridges

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What was the first modern floating bridge in the United States to fail due to a severe storm?
the Lacey V. Morrow Memorial Bridge
the Hood Canal Bridge
Perhaps the first words spoken as the Hood Canal Bridge sank: "Um, guys, did someone leave the watertight hatch open on that pontoon? Uh oh."
the Governor Albert D. Rosellini Bridge -- Evergreen Point Bridge

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What is the longest floating bridge in the world?
Governor Albert D. Rosellini Bridge -- Evergreen Point
It's kind of an awkward name for a bridge that's in an awkward and congested area. The Governor Albert D. Rosellini Bridge -- Evergreen Point is the world's longest.
Lake Washington Bridge
Brooklyn Bridge

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How long is the Governor Albert D. Rosellini Bridge -- Evergreen Point?
1.4 miles
It was a distance that no traditional bridge could span. At 1.4 miles this floating bridge is an engineering marvel.
1.8 miles
2.1 miles

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What year was the Governor Albert D. Rosellini Bridge -- Evergreen Point Bridge completed?
1963
Finished in 1963, it was a counterculture bridge before it was cool to be counterculture.
1973
1983

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What's one major reason Washington is replacing the Governor Albert D. Rosellini Bridge -- Evergreen Point Bridge?
It wasn't built to withstand a 20-year storm.
Hard as it may be to believe, engineers didn't build this mammoth structure in a way that would help it survive a 20-year storm.
It has too many irreparable cracks.
It's simply getting too old.

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The Sunset Lake Floating Bridge in Vermont was first floated on what kind of pontoons?
120 canoes
wooden barrels
Hopefully, they were whisky barrels that were dutifully emptied first. Today, the bridge uses plastic, styrofoam-filled barrels.
inflated pig skins

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Which state in America holds claim to the longest floating pedestrian bridge?
Vermont
Oregon
You might get tired of walking before you cross the 1,200-foot (366-meter) length of the Eastbank Esplanade in Portland, Ore.
Washington

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Which floating bridge uses steel pontoons instead of the more common concrete pontoons?
Demerara Harbour Bridge
Steel or no steel, the Demerara Harbour Bridge in Guyana has often lacked consistent maintenance and has been closed several times.
Lake Washington Bridge
Galata Bridge

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Which portion of a floating bridge is most susceptible to damage from an earthquake?
the deck
the approaches
Is there such a thing as a waterquake? Although the floating parts are generally safe, the land-based approaches can succumb to shaking ground.
the superstructure

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How big, in diameter, were the steel cables that broke when the Hood Canal Bridge sank?
6 inches (15.24 centimeters)
8 inches (20.32 centimeters)
3 feet (0.9 meters)
What's that saying about Mother Nature always winning in the end? The enormous cables were 3 feet in diameter, yet they still broke.

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Why were most ancient floating bridges constructed?
for war
Say you want to conquer a group of people, but they're on the other side of a deep lake or river. What do you do? Build a floating bridge! That's what many ancient military leaders did.
to help people move around more easily in their daily lives
to expand local economies

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Xerxes set out to conquer Greece, but first his army needed a bridge to cross which body of water?
the Hellespont
It literally means "Sea of Hell," and it enraged Xerxes by destroying the first floating bridge his men constructed.
the Black Sea
the Nile

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How many boats did Xerxes' men use for the replacement floating bridge?
nearly 400
They needed almost 400 boats to complete the task. And thankfully it worked, so the engineers didn't have their heads lopped off like the first bunch.
nearly 600
nearly 1,000

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Why was the Eastbank Esplanade closed temporarily in 2011?
high water levels
Water is great; too much is not. High water levels forced the first closure in the bridge's 10-year history.
severe winds
explosive balls of hot lava

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The Homer M. Hadley Memorial Bridge is part of which Interstate highway?
Interstate 25
Interstate 80
Interstate 90
This floating bridge is also a critical Interstate route, as part of Interstate 90.

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Many owners use what strategy to help pay for the huge expense of floating bridges?
tolls
And if you don't pay, they will find you. Many owners designate these as toll bridges until they recoup much of the construction cost.
higher local tax rates
extortion

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How much time did engineers need to complete the floating bridge in Dubai?
30 days
300 days
You want a bridge? We'll build you a bridge -- in 300 days. It was an amazing technological feat.
30 months

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How long is the Dubai floating bridge?
1,325 feet (403.86 meters)
1,399 feet (426.4 meters)
1,181 feet (360 meters)
Its length of 1,181 feet (360 meters) makes its 300-day construction timeline even more amazing.

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The Dubai floating bridge is almost brand-new (built in 2007), but it's only temporary. It'll be replaced in 2012 by what bridge?
the Dubai Golden Road
the Dubai Mile
the Dubai Smile
The name might make you chuckle, but the Smile will have a whopping 12 lanes for massive traffic flow.

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You Got:
/20
Bruce Heinemann/Stockbyte/Getty Images
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