Hoover Dam Bypass Bridge
CO River, AZ/NV
Project Description
Since its completion in 1936, Route U.S. 93 over Hoover Dam has served as a major transportation corridor. In those 70 years, increased traffic volume combined with the large number of pedestrian visitors at the dam has necessitated a bypass route. The new Colorado River Bridge, just downstream of the dam, will carry traffic 900 feet above the river avoiding the sharp turns and narrow roadway leading to the dam.
Owner
FHWA Central Federal Lands Highway Division (CFLHD)
Contractor
Obayashi / PSM (Joint Venture)
Designer
TYLin / HDR
Our Role
Precast Segmental Arches, Built using Falsework, then post-tensioned. Cast-in-place spandrel arches, and concrete bulb 'T' superstructure.
Total Contract Value
$114 million
Timeline
Fall 2001 - Winter 2010
Construction Method and Specifications
- Precast segmental columns, Maximum height = 287 ft
- Cast-in-place segmental concrete arch, Main Span = 1060 ft
- Arch construction using temporary stay cable system
Owner
FHWA Central Federal Lands Highway Division (CFLHD)Contractor
Obayashi / PSM (Joint Venture)Designer
TYLin / HDROur Role
Precast Segmental Arches, Built using Falsework, then post-tensioned. Cast-in-place spandrel arches, and concrete bulb 'T' superstructure.Total Contract Value
$114 millionTimeline
Fall 2001 - Winter 2010Construction Method and Specifications
- Precast segmental columns, Maximum height = 287 ft
- Cast-in-place segmental concrete arch, Main Span = 1060 ft
- Arch construction using temporary stay cable system
