Welcome to the Hoover Dam Bypass Website
Construction of the Mike O’Callaghan – Pat
Tillman Memorial Bridge (Colorado River Bridge) is now
The Mike O’Callaghan – Pat Tillman Memorial Bridge
(Colorado River Bridge)
is the central portion of the Hoover Dam Bypass Project.
Construction on the nearly
2,000 foot long bridge (with a
1,060 foot twin-rib concrete arch) began in late
January 2005 and traffic began using the Hoover Dam Bypass on
October 19, 2010. This
signature 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. Visit the What's New
and Construction Activities
pages for more details on how this project progressed through the
Hoover Dam Bypass Now Open!
The Federal Highway
Administration, in conjunction with the Arizona Department of
Transportation (ADOT) and the Nevada Department of Transportation (NDOT),
officially opened the new segment of US 93, formally known as the
Hoover Dam Bypass. Traffic began flowing on Tuesday night, October
Background on the Hoover Dam Bypass Project
United States Highway 93 (U.S. 93) has been designated a North American Free Trade Agreement (NAFTA) route. The increasing
congestion caused by the switchbacks leading to the Hoover Dam site and the restrictions at the dam crossing have led to the development of the Hoover Bypass Project.
The Hoover Dam Bypass Project is a 3.5-mile corridor beginning at approximately milepost 2.2 in Clark County, Nevada and crossing the Colorado River approximately 1,500 feet downstream of the Hoover Dam, then terminating in Mohave County, Arizona near milepost 1.7 on U.S. 93.
A Project Management Team (PMT) was developed to oversee the design and construction of the project. The PMT has representation from each of the major project stakeholders including the Federal Highway Administration (FHWA), the States of Arizona and Nevada, the Bureau of Reclamation (BOR), the Western Area Power Administration (WAPA) and the National Park Service (NPS).
Central Federal Lands Highway Division (CFLHD) will act in the lead management role for all elements of project procurement, design and construction.
CFLHD awarded a contract to HDR Engineering, Inc. to provide design and construction support services for the Hoover Bypass Project. An integrated team of professionals from
HDR Engineering, T.Y. Lin International, Sverdrup Civil, Inc. and several supporting
sub-consultants make up the consultant team, collectively known as
Hoover Support Team.
Hoover Bypass Project Site: