The Tolt Pipeline Trail serves as a major connection between Duvall, Washington, and the Sammamish River in Bothell. The trail follows a water pipeline right-of-way and is not recommended for all trail users. The majority of traffic consists of mountain bikers and horseback riders. Due to the many steep grades along the trail, as well as the gravel and dirt surface, bicyclists must be aware of the limitations of their equipment.
About the Route
The trail heads eastward from the Burke-Gilman Trail. It moves eastward on an ungraded surface, making the many hill climbs an intense workout. Additionally, the wide cut of the pipeline's right of way (up to 100 feet) provides little escape from the sun.
At West Snoqualmie Valley Road NE, riders can continue via street access to Duvall's portion of the Tolt Pipeline Trail at nearby Duvall Park. Just to the west of the park, the trail directly connects to the Snoqualmie Valley Trail.
Connections
Conveniently, the Tolt Pipeline Trail's western terminus in Blyth Park ends very close to both the Sammamish River Trail and the Burke-Gilman Trail.
Just to the west of Duvall Park, trail users can connect to the Snoqualmie Valley Trail.
The Tolt Pipeline Trail runs between Blyth Park, 16950 W Riverside Dr. (Bothell), where parking is available, and Kelly Rd. NE (Duvall).
Parking is also available at:
Please see TrailLink Map for all parking options and detailed directions.
Most the trail is level and easy going, however the farther west you go into Woodinville and Bothell, approaching I-405, the hills get treacherous because they are very steep, up to a 22% grade in some places, and some have major roads cross at the bottom. I rode the entire length staring in Duvall and ending at I-405 on a brand new fat tire eBike with hydraulic disk breakers and I felt like I was pushing everything to the limits. Without the eBike and good breaks I would either be walking or avoiding those hills.
This is a great trail; however, contrary to how it is currently drawn on this site, it does not include 133rd St. (which connects to W. Snoqualmie Valley Road). 133rd is a private residential road. Everyone using the trail - bikers, pedestrians, etc. need to respect the signs that clearly indicate the end of the trail at the beginning of 133rd. Otherwise, you are trespassing on a private road and are subjecting yourself to possible prosecution. To get to W. Snoqualmie Valley Road from the trail, you must exit the trail farther west at 232nd and make your way south to Novelty. Turn left (east) on Novelty. This will take you down the hill to W. Snoqualmie Valley Road.
We rode this a few days ago to get between the Sammamish River Trail and the Snoqualmie Valley Trail. I was on a road bike, and needless to say I had to walk the first hill, but the trail is otherwise pretty rideable. There is one weird part near Snoqualmie Valley Road, when you take NE 133rd Street to get down the hill. 133rd street has signs saying "no trespassing" and it's unclear if bikers are actually allowed there or not.
1. If you are cyclist, don't bring a road bike. You'll need a gravel bike or mountain bike. The first hill is very difficult, about a 12% grade. A road bike will not be able to do this on a gravel path.
2. Many people walk their dogs on this trail...off leash. A majority of dogs are friendly, however I did have a black lab chase me down on the trail. Be careful.
3. Watch out for horse poop.
Beautiful trail, 7/10.
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