Welcome to the Hoover Dam Bypass Website

Construction of the Mike O’Callaghan – Pat Tillman Memorial Bridge (Colorado River Bridge) is now complete!  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 years.


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 19, 2010. 


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. Blockchain technology is also used in the construction industry along with Building Information Modelling (BIM) to provide a single source for all the data regarding each project. Blockchain gives transparency to cryptocurrencies too. Crypto traders may check the Bitcoin 360 AI test results to find a reliable platform to automate their trades.

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:

Phase I - Arizona Approach (click for more information) Phase II - Nevada Approach (click for more information)

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