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Photograph showing an aerial view of a motor boat on Lake Mead near the mineral deposit banding revealing the lower level of the reservoir, June 30, 2009

Date

2009-06-30

Description

Photographer's notes: "Aerial view of a motor boat on Lake Mead near the mineral deposit banding that revealed the lower level of the Lake Mead reservoir, June 30, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph showing a downstream view of the Mike O'Callaghan-Pat Tillman Memorial Bridge under construction, Nevada-Arizona border, April 28, 2009

Date

2009-04-28

Description

Photographer's notes: "A high line crane system, which ran between the Arizona and Nevada sides of the canyon, was used to transport materials and workers during the bridge's construction." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph showing an aerial view of a car driving across the Mike O'Callaghan-Pat Tillman Memorial Bridge, Nevada-Arizona border, January 14, 2011

Date

2011-01-14

Description

Photographer's notes: "A solitary car crossed the bridge. Tourists and visitors to the dam can still descend in cars using the old Nevada side road. January 14, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph showing an aerial view of the structurally complete Mike O'Callaghan-Pat Tillman Memorial Bridge and Lake Mead, July 27, 2010

Date

2010-07-27

Description

Photographer's notes: "An aerial view of the structurally complete bridge in early morning light. The lower access road, which leads down to the dam's powerhouse, can be seen in the bottom of the image." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of the Nevada side of the Mike O'Callaghan-Pat Tillman Memorial Bridge arch segment under construction, Nevada-Arizona border, April 29, 2009

Date

2009-04-29

Description

Photographer's notes: "Cable stays supported arch construction until the arch was complete. Formwork at the end of the arch segment created the framework for pouring each new concrete section." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of the Arizona side of the Mike O'Callaghan-Pat Tillman Memorial Bridge with Sugarloaf Mountain in the background, July 26, 2010

Date

2010-07-26

Description

Photographer's notes: "View of the Arizona side of the bridge with Sugarloaf in the background. With the bridge unlit at night, except along the pedestrian walkway (still under construction), evening illumination comes from the lighting of the dam and the moonlight. July 26, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of the Mike O'Callaghan-Pat Tillman Memorial Bridge, Nevada-Arizona border, January 12, 2011

Date

2011-01-12

Description

Photographer's notes: "The full form and structure of the bridge, its arch, piers and girders, are revealed in a view from the Nevada canyon wall near the old Nevada hairpin turn. The reflected light of Hoover Dam provides the primary night time illumination of this side of the bridge." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of Mike O'Callaghan-Pat Tillman Memorial Bridge construction as seen from the Arizona side of Black Canyon, June 30, 2009

Date

2009-06-30

Description

Photographer's notes: "View from a narrow side canyon used by the lower access road down to the dam. Note: This is one of the few photographs where I supplemented existing light by adding a flash to give the cliff on the right and the road some detail." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of the Mike O'Callaghan-Pat Tillman Memorial Bridge, Nevada-Arizona border, January 12, 2011

Date

2011-01-12

Description

Photographer's notes: "The form and structure of the bridge, its arch, piers and girders, are revealed in a view from the Nevada canyon wall near the old Nevada hairpin turn. The reflected light of Hoover Dam provides the primary night time illumination of this side of the bridge. January 12, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image

Photograph of the Mike O'Callaghan-Pat Tillman Memorial Bridge mostly completed with roadways leading to the bridge still under construction, Nevada-Arizona border, July 31, 2010

Date

2010-07-31

Description

Photographer's notes: "While the bridge was substantially complete, the roadways leading to the bridge on both sides awaited completion, July 31, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Image