10 votes

Mike O'Callaghan - Pat Tillman Memorial Bridge


Main span construction from Hoover Dam

Photo taken by Nathan Morton in December 2009


BH Photo #150920

Street Views 


Open-spandrel arch bridge over Colorado River on US 93
Mohave County, Arizona, and Clark County, Nevada
Open to traffic
Opened on October 19, 2010 as a bypass route for Hoover Dam and for the Dept. of Homeland Security
- American Bridge Co. of New York (Steel)
- Construction Technologies & Engineering, Inc. of Portsmouth, Rhode Island (Construction Engineers)
- David Goodyear (Chief Engineer; T.Y. Lin)
- HDR, Inc. of Omaha, Nebaraska (Engineering Firm - Main Span)
- Ladd Construction of Redding, California (Subcontractor)
- Mark Ketchum (Erection Engineer; OPAC)
- McNary Bergeron & Associates of Old Saybrook, Connecticut & Broomfield, Colorado (Construction Engineers)
- OPAC Consulting Engineers of San Francisco, California
- Obayashi Corporation of Tokyo, Japan (Burlingame, California Office; Co-contractor)
- Olson Beale Construction of Lindon, Utah (Subcontractor)
- PSM Construction USA, Inc. of Brisbane, California (Co-contractor)
- Schwager Davis Inc. of San Jose, California (Prestressing & Stay Cables)
- Sverdrup Civil, Inc of St. Louis, Missouri (Engineering Firm - Approaches) [also known as Sverdrup & Parcel]
- T.Y. Lin International of San Francisco, California
So-called concrete-steel composite arch bridge. Bridge height is 890 ft. above the Colorado River.
Length of largest span: 1,080.0 ft.
Total length: 1,900.0 ft.
Also called
Hoover Dam Bypass Bridge
Approximate latitude, longitude
+36.01241, -114.74139   (decimal degrees)
36°00'45" N, 114°44'29" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/703547/3987684 (zone/easting/northing)
Quadrangle map:
Hoover Dam
Inventory number
BH 43778 (Bridgehunter.com ID)

Update Log 

  • July 5, 2020: New photos from Patrick Gurwell
  • May 24, 2020: New photo from Patrick Gurwell
  • April 12, 2018: New photos from Richard Doody
  • March 14, 2018: New photo from John Bernhisel
  • August 15, 2016: New Street View added by Dana and Kay Klein
  • June 23, 2016: New Street View added by Andrew Penik
  • February 22, 2015: Updated by Luke: Added builders from Structurae
  • December 4, 2014: Photo imported by Dave King
  • September 25, 2014: New photos from Royce and Bobette Haley
  • July 20, 2011: New photo from Chris Hall
  • November 25, 2010: New photos from Craig Philpott
  • November 10, 2010: New Street View added by Craig Philpott
  • October 25, 2010: Updated by Ed Hollowell: opening date
  • March 18, 2010: Updated by Craig Philpott: added street view
  • December 22, 2009: Added by Nathan Morton

Related Bridges 


  • Nathan Morton - morton890 [at] yahoo [dot] com
  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • Wikipedia
  • Ed Hollowell - erhollowell [at] aol [dot] com
  • Chris Hall
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Luke
  • Structurae
  • Dana and Kay Klein
  • John Bernhisel - Johnmbernhisel [at] gmail [dot] com
  • Richard Doody
  • Patrick Gurwell - pgurwell [at] gmail [dot] com


Mike O'Callaghan - Pat Tillman Memorial Bridge
Posted May 22, 2013, by Patrick Stratton (PatS [at] obayashi-usa [dot] com)

Tth construction engineering and construction of this bridge was done by Obayashi Corporation (Burlingame, CA) in joint venture with PSM Construction USA (Brisbane, CA), under a contract with FHWA. Obayashi, formed in Osaka, Japan in 1892, has been building large, complex civil infrastructure projects in the U.S. since 1979.

Mike O'Callaghan - Pat Tillman Memorial Bridge
Posted November 25, 2010, by Craig Philpott (cphilpott [at] puc [dot] edu)

When a new and significant bridge is opened it is really cool to be able to fly over it in a helicopter for photographs. This was a fun shoot.