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 River 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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This area of native riparian forest is part of the Redding Arboretum.

(July 21, 2004)


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The Sundial Bridge connects the Turtle Bay Museum with paths on the east bank of the Sacramento River.

(June 22, 2009)


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The Sundial Bridge has a glass deck allowing one to look down into the clear waters of the Sacramento River.

(June 22, 2009)


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The single tower of the Sundial Bridge is the gnomon (pointer) of the world's largest sundial. It throws a shadow to the north side, on to an arc of hour markers.

(June 22, 2009)


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The Sundial Bridge is a cable-stay design with a single inclined tower on the east bank of the river.

(June 22, 2009)


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Ducks and ducklings on the Sacramento River at the Sundial Bridge.

(July 21, 2004)


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Every angle of view of the Sundial Bridge is interesting.

(July 21, 2004)


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River level under the Sundial Bridge over the Sacramento River.

(June 22, 2009)


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