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Routes
Road cycling routes
United States
California
Santa Clara County
Sunnyvale

Foothill Expressway and Junipero Serra Loop

Easy

4.5

(1459)

13,490

riders

Foothill Expressway and Junipero Serra Loop

01:58

49.1km

260m

Road cycling

This easy 30.5-mile road cycling loop on Foothill Expressway and Junipero Serra Boulevard is perfect for a quick ride in the Bay Area.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Enid Pearson-Arastradero Preserve

Waypoints

A

Start point

Train Station

Get Directions

1

2.96 km

Orange and Nectarine Avenues

Highlight • Settlement

Lots of citrus still in these former orchards, pre-silicone urban sprawl.

Tip by

2

14.4 km

Palo Alto-Los Altos Bike Path

Highlight (Segment) • Cycleway

The Palo Alto-Los Altos Bike and Pedestrian Path, also known as the Hetch Hetchy Trail, is a well-maintained multi-use route that connects Los Altos Avenue to Arastradero Road. It’s popular …

Tip by

3

28.9 km

Junipero Serra Boulevard

Highlight (Segment) • Cycleway

Junipero Serra Boulevard has a generous, paved bike lane in both directions for the entire length of the ride.
Car traffic is everpresent on this route, and it can get …

Tip by

B

49.1 km

End point

Train Station

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Way Types & Surfaces

Way Types

31.8 km

10.8 km

4.50 km

1.87 km

< 100 m

< 100 m

Surfaces

48.0 km

1.04 km

< 100 m

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Elevation

Elevation

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

Highest point (140 m)

Lowest point (20 m)

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Weather

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Today

Friday 8 May

22°C

12°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the difficulty level of the Foothill Expressway and Junipero Serra Loop for cycling?

This route is considered easy for racebike cycling. It features predominantly flat terrain with only minor elevation changes, making it suitable for various fitness levels, from casual outings to quick workouts.

Are there dedicated bike lanes on this route?

Yes, both Foothill Expressway and Junipero Serra Boulevard feature generous, paved bike lanes in both directions for their entire length. This provides a dedicated space for cyclists, enhancing safety.

What is the traffic like on the Foothill Expressway and Junipero Serra Loop?

Car traffic is consistently present and can be particularly heavy during weekday commute hours. Weekends with good weather also see significant bicycle traffic. Be aware of approximately 12 intersections with traffic lights along the route.

What can I see along the route?

The route spans nearly 10 miles through suburban areas of the South Bay and Lower Peninsula. You'll pass through areas like Orange and Nectarine Avenues, and utilize sections of the Palo Alto-Los Altos Bike Path and Junipero Serra Boulevard itself.

Is the Foothill Expressway and Junipero Serra Loop a good starting point for longer rides?

Yes, this route is notable as a gateway to more extensive and challenging rides into the Santa Cruz Mountains. Cyclists often use it to connect to routes like Sand Hill Road, Alpine Road, Page Mill Road, Arastradero Road, or Stevens Canyon Road, which can lead to half-century rides or loops over Skyline Boulevard.

What is the best time of year to cycle this route?

The route is generally accessible year-round due to the mild Bay Area climate. However, weekends with good weather tend to see significant bicycle traffic. Consider cycling during off-peak hours on weekdays to avoid heavy car traffic.

Are there any permits or entrance fees required to cycle this route?

No, there are no permits or entrance fees required to cycle the Foothill Expressway and Junipero Serra Loop. It is a public road with dedicated bike lanes.

Where can I park to access the Foothill Expressway and Junipero Serra Loop?

As the route is a public road through suburban areas, there isn't a single designated trailhead parking lot. Cyclists typically access it from various points in the surrounding Silicon Valley communities. Look for street parking in nearby residential or commercial areas, ensuring you adhere to local parking regulations.

Is the Foothill Expressway and Junipero Serra Loop dog-friendly?

This route is primarily a road cycling path with dedicated bike lanes. While dogs are generally allowed on public roads, it is not designed as a recreational trail for walking dogs. For safety, it's best to leave your canine companions at home for this particular cycling route due to traffic and the nature of the ride.

Does the route intersect with other well-known paths?

Yes, the route utilizes sections of the Palo Alto-Los Altos Bike Path and also passes through parts of the Foothill Expressway, San Antonio/Arastradero Corridor, and the Dumbarton - East - West Connector.

Are there any planned improvements for cycling safety on this route?

Yes, Santa Clara County is actively studying and planning improvements for Foothill Expressway and Junipero Serra Boulevard, with a focus on enhancing safety for cyclists and pedestrians. This includes recommendations for a Class I Shared-Use Path along approximately 10 miles of the route, aiming to make it more accessible to all ability levels.

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