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Routes
Road cycling routes
United States
Washington
King County
Black Diamond

Cedar River Trail – East Channel Bridge loop from Summit Ridge Trailhead

Routes
Road cycling routes
United States
Washington
King County
Black Diamond

Cedar River Trail – East Channel Bridge loop from Summit Ridge Trailhead

Hard

4.8

(8237)

16,685

riders

Cedar River Trail – East Channel Bridge loop from Summit Ridge Trailhead

05:27

106km

630m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.

Last updated: May 1, 2026

Tips

Includes a segment in which cycling is not permitted

After 98.5 km for 92 m

Waypoints

A

Start point

Parking

Get Directions

18.0 km

Cedar Grove Natural Area

Nature Reserve

2

18.3 km

Cedar River Trail

Highlight (Segment) • Trail

The Cedar River Trail is a straight, flat ride out of the Seattle metro area and into the rural countryside.

The trail begins on the outskirts of Renton's historic downtown …

Tip by

19.5 km

Ricardi Reach Natural Area

Nature Reserve

4

23.8 km

Cedar River Trail Highway Underpass

Highlight (Segment) • Bridge

Yes, be very careful here - the trail loops under the highway and you need to slow waaaaay down to complete this safely.

Tip by

43.0 km

Viewpoint

Viewpoint

6

46.1 km

Ventilation for the I-90 tunnel

Highlight • Structure

People call them "missile silos", it's actually ventilation for the I-90 tunnel

Tip by

7

54.6 km

Nice spot to enjoy the view, grab a drink and stretch. There are a few locations along this segment with views of Rainier.

Tip by

8

55.5 km

Mercer Island

Highlight • Settlement

Mercer Island is both a city and an island situated in the center of Lake Washington. It boasts over 475 acres of parks and open spaces. It's a quiet, highly …

Tip by

9

57.9 km

East Mercer Way

Highlight (Segment) • Cycleway

Fun, shady, curvy section of road along the east side of Mercer Island. Watch for deer crossing the road!

Tip by

10

63.8 km

East Channel Bridge

Highlight (Segment) • Bridge

The original bridge, which was the first to access the island, opened on November 10, 1923. The task of opening the bridge for boats was given to George Lightfoot, the …

Tip by

11

73.1 km

Kennydale Beach Park

Highlight • Beach

The park is a little lakefront park with a beautiful outlook. The little beach has a swimming area as well as a playground. The restrooms are accessible and well-kept.

Tip by

86.7 km

Cedar River

Lake

B

106 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

64.3 km

24.0 km

8.31 km

4.60 km

4.47 km

296 m

Surfaces

70.1 km

30.0 km

4.63 km

851 m

354 m

123 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Today

Friday 26 June

18°C

11°C

75 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

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Description

If you're looking for a serious road cycling challenge that delivers diverse scenery, the Cedar River Trail – East Channel Bridge loop from Summit Ridge Trailhead is definitely worth your time. This difficult 65.8-mile (105.9 km) route, with a substantial 2082 feet (635 metres) of elevation gain, will take you around 5 hours and 27 minutes to complete. It's a fantastic option for experienced cyclists seeking a long, varied ride through both paved and packed gravel sections, offering a comprehensive road cycling overview of the area.

What to expect on Cedar River Trail – East Channel Bridge loop from Summit Ridge Trailhead

Expect a journey that shifts from urban fringes to tranquil rural landscapes. The trail closely parallels the Cedar River, offering continuous scenic viewpoints and glimpses of its fast-flowing waters. You'll cycle through open fields and dense forests of Douglas fir and bigleaf maple, with the surface transitioning from smooth pavement for the first 12 miles to packed gravel for the remaining 5 miles towards Landsburg Park. While the gravel sections are generally rideable on a road bike, a gravel bike might offer more comfort. Keep an eye out for historic railroad bridges and interpretive signs along the way; in autumn, the salmon spawning spectacle is a major highlight. This route is best for cyclists with good fitness who enjoy a mix of surfaces and a long day in the saddle.

Planning your visit

The Cedar River Trail is a multi-use path, so you'll share it with walkers and joggers. Parking is available at the Summit Ridge Trailhead. While the trail is generally accessible, some underpasses can close during high water or winter conditions, so check local conditions before you head out. The best time to cycle the Cedar River Trail is during the warmer months, though autumn offers the unique chance to see salmon. Remember that a 10-mile-per-hour speed limit is enforced for bicycles within Renton city limits.

Trail details

  • Distance: 65.8 miles (105.9 km)
  • Elevation gain: 2082 feet (635 metres)
  • Difficulty: difficult
  • Estimated time: 5 hours and 27 minutes

Nearby routes

Moderate

5.0

90

Mountains to Sound Trail and Mercer Island Loop

02:36h

54.6km

490m

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