Construction is complete!
The Federal Highway Administration (FHWA) awarded a $7 million
contract to Frehner Construction Company, Inc. of North Las Vegas,
Nevada to complete the final roadway elements that will allow
traffic onto the Hoover Dam Bypass.
This was the final contract. Work
included completion of signing, striping, median barrier,
lighting, paving, and roadway tie-ins at U.S. 93. Additional work
included the paving and parking area improvements for the
visitor and pedestrian plaza.
The Federal Highway Administration (FHWA) awarded a $7 million
roadway surfacing project to
Paving Corporation of Las Vegas Nevada in December 2007. The
paving project included over 60,000 tons aggregate base, 45,000 tons
hot asphalt concrete pavement and nearly 18,000 lineal feet of
guardrail. The project is now complete.
This project was accelerated in order to finalize paving and
guardrail throughout a majority of the Bypass Approach roadways and
take advantage of current construction materials prices and minimize
any future increases that may result from delays associated with the
contractor’s crane collapse that occurred during construction of the
Mike O’Callaghan – Pat Tillman Memorial Bridge (Colorado River
Bridge). Advancing this roadway surfacing project ensured
continued progress on the Bypass and minimized the remaining work to
be done after the Colorado River Bridge was completed – with the ultimate goal
of expediting the final opening of the Bypass.
As the Mike O’Callaghan – Pat Tillman Memorial Bridge (Colorado
River Bridge) neared completion, a final contract was
awarded to pave the short sections of remaining roadway and the
roadway tie-ins at U.S. 93, as well as complete final signing,
striping, barrier, and pedestrian facilities. This final contract cost approximately $8 million and will
advertised in late 2009. The total cost to complete the Hoover Dam
Bypass remained unchanged at $240 million and is consistent with the
original 2001 estimate.
The construction contract for the Mike
O’Callaghan – Pat Tillman Memorial Bridge (Colorado River Bridge), was awarded to the joint venture
Corporation and PSM Construction USA, Inc., in October of 2004 for
$114M. Construction began in early 2005 and is was
completed in October 2010. The 2,000 foot-long Colorado
River Bridge spans the Black Canyon (about 1,500 feet south of
the Hoover Dam), connecting the Arizona and Nevada Approach highways
nearly 900-feet above the Colorado River. The construction
requirements and challenges were as difficult as any in the world.
By November 2008, the joint venture contractor had completed over
$78M worth of construction. Major milestone work completed included
the abutments, approach columns, girders and deck, and arch skewback
footings. A number of the arch segments were cast using a temporary
form traveler system. The contractor established a new cableway
system developed specifically for this project and site. The cable
crane system spaned the canyon, delivering materials and
equipment used in constructing the bridge. Other completed work
included the precast segments for the bridge columns which support the roadway on the arch.
On August 10, 2009, the arch portion of the Colorado River
Bridge was physically connected. Removal of the supporting cable system was completed on August 27th,
and the arch is now self supporting and free standing.
The bridge was approximately 85% complete at this point.
Continued work included setting the precast columns, erecting the
steel girders, and casting the roadway deck and barriers. (Please
see the July/August Project Status Update for more detail on
this process. It can be found on our
page.) The bridge remained on schedule for completion.
In October 2010, Mike O’Callaghan – Pat Tillman Memorial Bridge
(Colorado River Bridge) was completed and opened
to traffic on October 19, 2010.
Phase Two of the Hoover Dam Bypass, the Nevada
Approach project, was
completed in November 2005. Edward Kraemer & Sons,
Inc., the contractor for the Nevada Approach project, completed this
$30.1 million roadway improvement from Nevada U.S. 93 to the new
Colorado River Bridge crossing nearly two months ahead of schedule.
Construction of the Nevada Approach, began in October 2003, and
within its short 24-month duration, the contractor constructed 2.11
miles of new four-lane highway alignment including six new bridges,
a new traffic interchange at U.S. 93 near the Hacienda Casino,
retaining walls, wildlife crossings, and a 1.6 mile extension of the
River Mountain River Loop hiking trail. To accomplish this feat, the
contractor moved over 1.5 million cubic yards of blasted rock
material, placed 2.8 million pounds of reinforcing steel, and poured
over 12,000 cubic yards of structural concrete.
Phase One of the Bypass was
finished in December 2004. Completion of the Sugarloaf Mountain
Bridge signified the end of construction on the
Arizona Approach project. The
a connection between U.S. 93 and the Colorado River Bridge. Major
components of the $21.5 million project include nearly two miles of
four-lane roadway, a 900-foot bridge on the east side of Sugarloaf
new traffic interchange at U.S. 93 and Kingman Wash Road, wildlife
crossings, trail access parking, improved drainage and rock
staining. The joint venture contractor, R. E. Monks Construction and
Vastco Inc, were responsible for construction activities on the
Arizona Approach. The project was completed on time.
Statement from the Federal Highway
Administration - November 24, 2008
The Federal Highway Administration extends its deepest sympathy to
the family of the construction worker who suffered a fatal accident
on the Hoover Dam Bypass project site today. The FHWA will work
closely with U.S. Department of Labor’s Occupational Safety and
Health Administration and the Joint Venture contractor, Obayashi
Corporation and PSM Construction USA, Inc., to determine the cause
of the accident. The accident occurred during a routine operation to
adjust a cable used to align the temporary concrete towers that
support construction of the twin arches. In the interim, all related
activities involving the area where the accident occurred are
suspended until further notice. Update: As of
Monday, December 1, 2008, all construction activities have resumed.
Contact: Doug Hecox, FHWA Public Information Officer, at
Come inside the Construction Zone!
Be sure to check out photos of all our projects in our
Construction Photo Album.
Images are updated periodically. October 2010 photos showing the
completion of the Mike O’Callaghan – Pat Tillman Memorial Bridge
(Colorado River Bridge), as well as of the
Interim Paving Project (on both the Arizona and Nevada sides) are now posted!
Construction Web Cam -
Notice: The web cameras
servicing the Hoover Dam Bypass Colorado River Bridge project were permanently removed between August 2 and August 9, 2010 as the
project neared completion. We appreciate the interest that has been
generated as a result of the cameras and apologize for any
inconvenience. The Bypass project finished ahead of schedule,
opening to traffic on October 19,
Through the use of our interactive web cam, the
public was able to view
live-images of the Colorado River Bridge construction area, zoom in and out on specific
locations, e-mail images to someone, and post their own images to a
photo album. Thank you to all who took time to use this feature!