Spotted by Frank in the US:

The Glass Bridge Construction of the began March of 2004 and is estimated to be completed by early 2006.

On completion, the Glass Bridge will be suspended 4,000 feet above the Colorado River on the very edge of the Grand Canyon.

On May 2005, the final test was conducted and the structure passed engineering requirements by 400 percent, enabling it to withstand the weight of 71 fully loaded Boeing 747 airplanes (more that 71 million pounds).

The bridge will be able to sustain winds in excess of 100 miles per hour from 8 different directions, as well as an 8.0 magnitude earthquake within 50 miles. More than one million pounds of steel will go into the construction of the Grand Canyon SkywalkGrand Canyon Skywalk

* Will accommodate 120 people comfortably (how comfortable would you be?) * Built with more than a million pounds of steel beams, and includes dampeners that minimize the structure’s vibration * Designed to hold 72 million pounds, withstand an 8.0 magnitude earthquake 50 miles away, and withstand winds in excess of 100 mph * The walkway has a glass bottom and sides…four inches thick

First Published: Dec 23, 2005

The Skywalk has now been completed see http://www.grandcanyonwest.com/skywalk.html

Sadly cameras are not allowed on the bridge.

“Personal belongings, including cameras are not allowed on the bridge. To protect from dropping any items into the canyon or onto the glass, you will be asked to store your items in the provided lockers. “