The New Hoover Dam Bypass – Wider View

by HART (1-800-HART) on October 29, 2009 · 3 comments

in Crazy Pictures,Picture Worth 1000 Words

call HART crazy .. but

AWESOME!

THE WIDER VIEW: Taking shape, the new bridge at the Hoover Dam

Creeping closer inch by inch, 900 feet above the mighty Colorado River, the two sides of a $160 million bridge at the Hoover Dam slowly takes shape.

The bridge will carry a new section of US Route 93 past the bottleneck of the old road which can be twisting and winding around and across the dam itself.

When complete, it will provide a new link between the states of Nevada and Arizona.

In an incredible feat of engineering, the road will be supported on the two massive concrete arches which jut out of the rock face.

The arches are made up of 53 individual sections each 24 feet long which have been cast on-site and are being lifted into place using an improvised high-wire crane strung between temporary steel pylons.

The arches will eventually measure more than 1,000 feet across. At the moment, the structure looks like a traditional suspension bridge. But once the arches are complete, the suspending cables on each side will be removed. Extra vertical columns will then be installed on the arches to carry the road.

The Mike O’Callaghan-Pat Tillman Memorial Bridge

The bridge has become known as the Hoover Dam bypass, although it is officially called the Mike O’Callaghan-Pat Tillman Memorial Bridge, after a former governor of Nevada and an American Football player from Arizona who joined the US Army and was killed in Afghanistan. Work on the bridge started in 2005 and should finish next year. An estimated 17,000 cars and trucks will cross it every day.

The Hoover Dam

The dam was started in 1931 and used enough concrete to build a road from New York to San Francisco. The stretch of water it created, Lake Mead, is 110 miles long and took six years to fill. The original road was opened at the same time as the famous dam in 1936.

An extra note: The top of the white band of rock in Lake Mead is the old waterline prior to the drought and development in the Las Vegas area. It is over 100 feet above the current water level.

Hoover Dam Bypass 1of7

Hoover Dam Bypass 2of7

Hoover Dam Bypass 3of7

Hoover Dam Bypass 4of7

Hoover Dam Bypass 5of7

Hoover Dam Bypass 6of7

Hoover Dam Bypass 7of7

SOURCE: FWD’ed to me in my email INBOX

NOTE: This caption may have been referenced with this email (unconfirmed)

LAKE MEAD NRA, NV – JUNE 12: An aerial view of the Hoover Dam and the Hoover Dam bypass under construction June 12, 2009 in the Lake Mead National Recreation Area, Nevada. (Photo by Ethan Miller/Getty Images)

Update: October 2009

Drive by construction progress photo from the Nevada side of the Mike O’Callaghan-Pat Tillman Memorial Bridge, the major component of the Hoover Dam Bypass project. In this photo the temporary towers that were holding the arch spans and associated cables have been removed. Also, work has begun on the vertical piers that will support the road deck over the arch.

Wikipedia

hooverdam8

Related Posts with Thumbnails
1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)
Loading...

{ 3 comments… read them below or add one }

Clara October 29, 2009 at 7:21 pm

Still an amazing site after so many years.

Reply   More from author

shivukumar September 2, 2010 at 10:38 pm
NoraHeadytml August 20, 2016 at 10:36 pm

I see your site needs some fresh & unique articles.

Writing manually is time consuming, but there is tool for this task.
Just search in gooogle for: Avurker’s essential tools

Reply   More from author

Leave a Comment

*

Additional comments powered by BackType

Previous post:

Next post:

Google Analytics Alternative