Sundial Bridge
844 Sundial Bridge Dr
Redding, CA
A soaring white pylon, a glass walkway that glows at night, and one of the largest working sundials in the world, all free to cross.
The Sundial Bridge is a pedestrian and bicycle bridge across the Sacramento River in Redding, and it is the kind of structure that stops people in their tracks. A single tall white pylon leans back from the north bank, and from it a fan of cables holds up a curving walkway that crosses the river without ever setting a foot in the water. Designed by the celebrated architect Santiago Calatrava and opened on the Fourth of July in 2004, it was his first free-standing bridge in the United States, and it turned a modest river crossing into a landmark that draws visitors from across the country.
It is also, as the name promises, a real sundial. The great leaning pylon rises more than two hundred feet, and its shadow sweeps across a dial laid out on the north plaza, moving steadily through the day so that you can read the hour from the sun. Best of all, none of this costs a thing. The bridge and the riverside trails on both banks are free and open day and night, so you can cross it in the morning light, come back at dusk, and watch the glass deck begin to glow.
What Travelers Love
- A striking white pylon and cable design by a world-famous architect, free to walk across
- A translucent glass walkway that is lit from below and glows aquamarine after dark
- The bridge doubles as a working sundial, one of the largest anywhere, with its shadow marking the hours
- Easy, level riverside trails and botanical gardens on both banks, good for all ages
Worth Knowing
- The bridge and the riverside trails are free and open around the clock, so sunset and after-dark visits, when the deck glows, are especially worth timing
- The adjoining exploration park and its gardens are a separate ticketed attraction, but you can enjoy the bridge and the trails without paying admission
- There is free public parking near the bridge, and the walk across is flat and stroller-friendly
- Redding summers are hot, often over one hundred degrees, so morning or evening is the most comfortable time to linger
Learn about Sundial Bridge
A bridge shaped by salmon
The most surprising thing about the Sundial Bridge is that its beauty grew out of a practical problem. This stretch of the Sacramento River is spawning water for Chinook salmon, and the gravel beds where the fish lay their eggs cannot take the shade or the disturbance of pillars planted in the current. So the bridge was designed to leap the river in a single span, with no footings in the water at all, its weight carried instead by the cables running down from the tall pylon on the bank.
The walkway itself is paved not with concrete but with panels of translucent structural glass, chosen so that daylight passes through and does not cast a dark shadow onto the salmon gravels below. That choice, made for the fish, gives visitors the bridge's most magical feature. At night the glass is lit from beneath and glows a soft aquamarine, so the whole span seems to float and shimmer above the dark river. Form and purpose meet: a bridge kind to the salmon turns out to be a bridge that glows.
Telling time by the sun
The leaning pylon is not just structure, it is the gnomon of a giant sundial, the pointer that casts the time-telling shadow. Set at a steep angle and rising over two hundred feet, it throws a long shadow across a dial paved into the plaza on the north side of the river. The shadow moves visibly, sliding along at about a foot each minute, so children love to watch it inch across the markers and mark the passing of a few minutes in real time.
It is one of the largest working sundials in the world, and like any sundial it has its quirks. The shadow arcs so widely across the seasons that the dial reads accurately only through the middle hours of the day, roughly late morning to mid-afternoon. That small imperfection is part of the charm. Standing on the plaza watching a shadow tell the hour is a quiet reminder of how people kept time for thousands of years before clocks, all wrapped inside a thoroughly modern piece of engineering.
Gardens and trails on both banks
The bridge was built to connect, and what it connects is worth the crossing. On the far bank spread botanical gardens with acres of display plantings suited to the region's hot, dry summers, a children's area, a garden of medicinal plants, and quiet water features, all laced with easy paths. On the near side, riverside trails run along the water in both directions, part of a longer network that follows the Sacramento through Redding, level and gentle enough for strollers, wheelchairs, and an after-dinner stroll.
You can make the visit as short or as long as you like. Some people cross the bridge, take a few photographs, and move on. Others spend a whole afternoon wandering the gardens and the river paths and come back after dark to see the deck light up. Because the bridge and the trails are free, it rewards a return trip at a different hour, when the light and the crowds have changed.
Visiting the Sundial Bridge
The bridge sits on the edge of Redding, easy to reach and well signed, with free public parking nearby and a flat, welcoming approach. The bridge and the riverside trails are free and open twenty-four hours a day, so you are never turned away, and the best times to come are early morning, when the river is calm and cool, and evening into night, when the glass deck glows over the water. The adjoining exploration park and its museum buildings are a separate ticketed attraction, but you do not need a ticket to enjoy the bridge, the trails, or the walk itself.
Redding runs hot in summer, often past one hundred degrees, so plan around the heat and bring water if you mean to linger. Give yourself time to walk out to the middle of the span, look down through the glass at the green river, and then watch the shadow of the pylon tell the time on the plaza. It is a rare thing: a genuine work of architecture that anyone can walk across for free, set in a river park made for slowing down.
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Details
Redding, CA
Frequently asked questions
What is the Sundial Bridge?
The Sundial Bridge is a striking and elegant pedestrian bridge spanning the Sacramento River in Redding, in Northern California. Designed by the renowned architect Santiago Calatrava, this beautiful modern bridge features a soaring, angled white pylon and cables that give it a graceful, sail-like appearance, and it functions as a giant working sundial, one of the largest in the world. Connecting the two sides of the Turtle Bay Exploration Park, the bridge has become an iconic landmark of Redding, admired for its stunning design, riverside setting, and the way it beautifully blends art, engineering, and function.
How does the Sundial Bridge work as a sundial?
The Sundial Bridge's tall, angled pylon acts as the gnomon, or pointer, of a giant sundial, casting a shadow onto a large dial area on the north end of the bridge, where the moving shadow indicates the time of day, much like a traditional sundial but on an enormous scale. It is considered one of the largest working sundials in the world. While it tells accurate time only around certain dates and conditions, the concept and the shadow's movement are a fascinating and delightful feature. This clever blend of art, science, and function is part of what makes the bridge so special.
What can you do at the Sundial Bridge?
You can stroll or bike across the beautiful glass-decked bridge for lovely views of the Sacramento River and the elegant structure, watch the sundial's shadow, explore the connected Turtle Bay Exploration Park with its museum, gardens, and trails, walk the riverside paths and the Sacramento River Trail, and enjoy the scenic setting, especially lovely at sunset and when the bridge is lit at night. Photography is popular. With its stunning architecture, river views, sundial feature, and connection to Turtle Bay Park, the Sundial Bridge offers a scenic and enjoyable outing in Redding.
When is the best time to visit the Sundial Bridge?
The bridge is beautiful year-round, with spring and fall offering pleasant weather for strolling, while Redding's summers are very hot, so early morning or evening visits are best then, and evenings any season are lovely when the bridge is illuminated. Clear days offer the best views and the sundial effect. The connected Turtle Bay Park is enjoyable in mild weather. For comfortable visits, aim for spring, fall, or the cooler hours of a summer day, with evening offering a beautiful view of the lit bridge over the river.
What is near the Sundial Bridge?
The Sundial Bridge is in Redding, connecting the Turtle Bay Exploration Park, and near the Sacramento River Trail, downtown Redding, and within reach of Shasta Lake, Mount Shasta, the Lassen Volcanic National Park area, and the McArthur-Burney Falls to the north and east. That makes the Sundial Bridge a scenic landmark to combine with Turtle Bay Exploration Park, the Sacramento River Trail, and the natural attractions of Northern California's Shasta Cascade region on a visit to the area.
Nearby
Sacramento River Bend Area
24 miles away
Thousands of acres of free BLM public land along a wide bend of the Sacramento River, with easy bluff trails like Iron Canyon, big views of Lassen and Shasta, and winter bald eagles.
William B. Ide Adobe State Historic Park
29 miles away
An 1850s adobe home and a re-created pioneer homestead on a shaded bank of the Sacramento River, one of the oldest buildings in the northern valley.
Manzanita Lake
43 miles away
Manzanita Lake sits at the northwest corner of the park, its calm water mirroring the snow-streaked cone of Lassen Peak.
Lassen Volcanic National Park
46 miles away
Bubbling mudpots and steaming fumaroles around the largest plug dome volcano on Earth.