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Sacramento River Trail

Sacramento River Trail, Shasta County, CA, 17.94 miles

Trail Facts

Hall of Fame
Inducted 2023 by Rails to Trails Conservancy
Length 18 mi
Elevation 491 to 1036 ft
Grade 0.8% average
Shade cover 20%
Surface Asphalt

Activities

E-biking · Biking · Walking · Running · Hiking · Birding · Fishing · and more

About This Trail

The Sacramento River Trail runs about 18 miles from the foot of Shasta Dam south along the west shore of Keswick Reservoir, then east along the river into Redding, ending at the glass-decked Sundial Bridge. The northern half is the old Southern Pacific grade: an open canyon shelf above the blue-green reservoir, a few short hills, and a 500-foot rail tunnel. Below Keswick Dam the trail crosses the river on the 1990 stress ribbon bridge and follows the north bank through oaks and riparian woods past the 1915 Diestelhorst Bridge. The whole route is paved. Riding it end to end is a long, gradual descent toward town, with the climb saved for the ride back.

RailTrailWx TIPS

Sacramento River Trail

Your comfort. Prognosticated.

  • The trail is very flat without much change of elevation, save a quick trip to the top of Shasta Dam. The short hills along Keswick Reservoir are the only small grades to handle.
  • Two thirds of the route is open sky, mostly on the canyon shelf above Keswick Reservoir. The tunnel and a few pockets of ponderosa pine are the only shade up there, so regulars start early in summer.
  • The Keswick canyon runs north to south, and the walls line up any wind with the water. A northwest wind is a tailwind toward Redding.
  • The section of trail through Redding feels like a different trail: it follows the banks of the river through an avenue of oaks and riparian woods, with the cold Shasta release water beside you acting like natural air conditioning in summer.
  • The north end stops at a locked gate below Shasta Dam at the Shasta Chappie off-road area; the last public trailhead is at Coram Road.
  • Expect the river section to be crowded or partly closed for annual events: the Redding Marathon in January, Nail the Rail in April, and the Turkey Trot on Thanksgiving.

-Cory

Trivia

  • The Central Pacific reached Redding in 1872, and the town took its name from the railroad's own land agent, B.B. Redding.
  • The last train ran through the Sacramento River Canyon on May 23, 1942, before the water behind Shasta Dam covered the right of way.
  • The 500-foot tunnel on the rail trail was bored in the 1880s and lined with concrete in 1923.
  • The stress ribbon bridge below Keswick Dam opened in 1990 as the first bridge of its kind in North America, 420 feet long and 13 feet wide.
  • The Diestelhorst Bridge, finished in 1915, was the first bridge over the Sacramento River built for automobiles; today only bikes and walkers use it.
  • The Sundial Bridge's 217-foot mast is a working sundial gnomon, but its shadow lines up exactly with the time markings on only one day a year, the summer solstice.
  • A sign at Middle Creek tells the story of the Ruggles brothers, who robbed a stagecoach there in 1892.
  • Keswick Dam is an afterbay: its 157-foot wall smooths out the surging power releases from Shasta Dam upstream.
  • Iron Mountain Mine beside Keswick Reservoir has been called the largest toxic metal contributor to the Sacramento River system; mining there ended in 1963.
  • The Secretary of the Interior named both trails National Recreation Trails in 2002, and the Rails to Trails Conservancy inducted them into its Hall of Fame in 2024.

Climate

Excellent biking days per month, 2011-2025 climatology

In a typical year the Sacramento River Trail has about 139 to 216 days of excellent weather for popular activities such as hiking, birding, dog walking, biking, walking, e-biking, and running, with April, May, and October the best months.

RailTrailWx Comfort Scores, for your activity.

Hourly comfort scores for the next 15 days of weather, tuned to your activity and your own thresholds.

Plan your visit to this trail. Get the best windows for a comfortable outing.

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Enjoy the Sacramento River Trail!

Peak Fall Color Climatology

Calendar of the typical peak fall color window along this trail

In half of past years, color along the Sacramento River Trail peaks October 23 to November 9, typically around November 1. The trail has 15% deciduous coverage, with the majority being canyon live oak.

History

The last train left the Sacramento River Canyon on May 23, 1942, ahead of the water filling behind Shasta Dam. The line began as the California and Oregon Railroad, chartered in 1865 to link Marysville with Portland. The Central Pacific bought it in 1870 and pushed rails to Redding by 1872. Rails met at Ashland, Oregon, in 1887. Under the Southern Pacific this became the Shasta Route. Its freight was copper, with smelters along the track at Coram, Iron Mountain, Copper City, and Kennett. Shasta Dam went up starting in 1937, and the railroad moved to a new alignment to the east. Light service lingered on the surviving branch until 1980. Three years later, in 1983, the first section of the Sacramento River Trail opened near Redding, on the north bank along an old mining road. In 1990 a concrete stress ribbon bridge, the first in North America, closed a 5.5-mile loop on both sides of the river. The Secretary of the Interior named the trails National Recreation Trails in 2002, and the Sundial Bridge opened in 2004. The Bureau of Land Management and the Bureau of Reclamation then carried the paved rail trail up the west shore of Keswick Reservoir to Shasta Dam. In 2024 the trails entered the Rails to Trails Hall of Fame, and a downtown connector closed a four-mile loop between the Sundial and Diestelhorst bridges.

Trailheads

  • Coram Road TrailheadMILE 2Directions
  • MathesonMILE 5.7Directions
  • Keswick Boat RampMILE 9Directions
  • Rock Creek TrailheadMILE 9.9Directions
  • Keswick DamMILE 12.7Directions
  • Diestelhorst BridgeMILE 16.1Directions
  • Sundial BridgeMILE 17.9Directions

Connects To

Hornbeck Trail · Eastside Keswick Trails · Middle Creek Trail

Managed By

City of Redding Parks and Recreation (river section) and Bureau of Land Management, Redding Field Office (rail trail section)

Further Reading

  • Rails-to-Trails Conservancy · California's Sacramento River Rail Trail and Trail
  • Bureau of Land Management · Sacramento River Rail Trail - California
  • Bureau of Land Management · Programs: Recreation: Our Strategy: California
  • American Trails · Sacramento River Trail and Sacramento River Rail-Trail
  • Bureau of Land Management · Eastside Keswick Trails - California
  • Rails-to-Trails Conservancy (TrailLink) · Sacramento River Trail History
  • Rails-to-Trails Conservancy (TrailLink) · Sacramento River Rail Trail Rail-Trail History
  • Rails-to-Trails Conservancy (TrailLink) · Sacramento River Rail Trail
  • Rails-to-Trails Conservancy (TrailLink) · Sacramento River Trail
  • Rails-to-Trails Conservancy · Sundial Bridge: The Road to a Thousand Wonders
  • Wikipedia · Sundial Bridge at Turtle Bay
  • Wikipedia · Keswick Dam
  • Visit Redding · The Sacramento River Trail in Redding, CA
  • City of Redding · City of Redding Unveils a New One-Mile Trail Connection, Linking the Sundial Bridge and the Diestelhorst Bridge through Downtown Redding
  • Decor Hint · This 11-Mile Northern California Trail Follows An Old Railroad Along The Sacramento River And Rugged Canyon Views

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