Skip to main content
Search
Services
TECHNOLOGY

Skywalk to offer thrilling Grand Canyon view

By Adam M. Bright
Popular Scienceexternal link

story.glass.skywalk.jpg
Take a stroll over the all-glass Skywalk, and you can hover above the Grand Canyon.

YOUR E-MAIL ALERTS

Popular Science
Grand Canyon National Park

(PopSci.com) -- Step out onto the new Skywalk, and only a few sheets of glass will stand between you and a 15-second free-fall to the bottom of the Grand Canyon.

Set to open late this year, this horseshoe-shaped footbridge (commissioned by the Hualapai Indian tribe, which owns the land) will jut 65 feet from the cliff edge and suspend 3,800 feet above the canyon floor, a height more than twice that of the world's tallest skyscraper.

If you're a bridge, the Grand Canyon is probably the last place you'd want to be: 90 miles per hour vertical winds whip upward with tornado-like force, a condition endured by no other bridge in the world.

To secure the Skywalk, Lochsa Engineering in Las Vegas has cantilevered it atop the cliff with 94 steel rods that bore 46 feet into the limestone rock. As a result, it can support 70 tons of weight, equivalent to roughly 700 hefty men, although the maximum occupancy is set at 120 people.

Three oscillating dampers -- steel plates, each 3,200 pounds -- inside the hollow bridge beams act as shock absorbers, moving up and down to neutralize the vibrations from foot traffic and wind gusts. For further support, the walkway itself will be constructed of three-inch-thick, heat-strengthened glass and enclosed by five-foot-tall glass walls.

Too tame for you? Lochsa hints at future plans to ratchet up the thrill factor by turning a maintenance car designed to run on a track along the bottom of the Skywalk into a trolley ride for visitors.

Story Tools
Subscribe to Time for $1.99 cover
Top Stories
Get up-to-the minute news from CNN
CNN.com gives you the latest stories and video from the around the world, with in-depth coverage of U.S. news, politics, entertainment, health, crime, tech and more.
Top Stories
Get up-to-the minute news from CNN
CNN.com gives you the latest stories and video from the around the world, with in-depth coverage of U.S. news, politics, entertainment, health, crime, tech and more.
Search JobsMORE OPTIONS


 
Search
© 2007 Cable News Network.
A Time Warner Company. All Rights Reserved.
Terms under which this service is provided to you.
Read our privacy guidelines. Contact us. Site Map.
Offsite Icon External sites open in new window; not endorsed by CNN.com
Pipeline Icon Pay service with live and archived video. Learn more
Radio News Icon Download audio news  |  RSS Feed Add RSS headlines