Virtual Guidebook to the Sacramento Valley
Sundial Bridge
Over the Sacramento River in Redding California


The Sundial Bridge at Turtle Bay is a pedestrian bridge spanning the Sacramento River in the city of Redding. It forms part of the 35 mile Sacramento Rver Trail leading north to Shasta Dam.

The bridge was designed by Spanish architect Santiago Calatrava. It has a single 217 foot tower tilted due north, with a glass deck 700 feet long. A landscaped area at the east end is marked with hours where the tower's shadow falls, making it the world's largest sundial. The shadow progresses around the dial at about one foot per minute, but is only accurate one day a year - the Summer Solstice on June 21/22.



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Riparian forest in the Redding Arboretum

(July 21, 2004)


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On the Sundial Bridge over the Sacramento River at Turtle Bay Museum, Redding

(June 22, 2009)


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On the Sundial Bridge over the Sacramento River, Redding

(June 22, 2009)


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The single tower of the Sundial Bridge is the gnomon of the world's largest sundial

(June 22, 2009)


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The Sacramento River and the Sundial Bridge on Redding

(June 22, 2009)


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The Sundial Bridge over the Sacramento River

(July 21, 2004)


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Underneath the Sundial Bridge

(July 21, 2004)


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River level at the Sundial Bridge on the Sacramento River, Redding

(June 22, 2009)


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