Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
Bicycle Infrastructure

Marin County Opens New Tunnel For Biking, Walking and Rolling

Hundreds of cyclists and pedestrians -- and more than a few elected officials -- turned out on Friday afternoon last week to cut the ribbon on an impressive piece of infrastructure for human-powered travel -- the long-awaited Cal Park Tunnel in Marin County, California.

The project has been talked about since the late 1970s and in active development for the last 12 years. For Marin cyclists, the 1.2 mile path/tunnel combo adds a critical, safe link to the north-south bikeway that will eventually run from the Golden Gate Bridge to Cloverdale in Sonoma County.  It is expected to shave nearly 15 minutes off of trips and serve up to 800,000 riders a year. And just as important: The rail right-of-way has been maintained so that in the future, SMART light rail vehicles can use the tunnel too.

The Cal Park Tunnel has some top-notch features: ample lighting, cell phone reception, emergency phone call boxes, a ventilation system and smooth pavement.  To read up on loads more history of the tunnel and information, check out Streetsblog SF's great recap from last week.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Gov. Hochul Just Says ‘Way-No’ to Driverless Cabs Across NYS

The governor made the shocking choice to reverse her budget proposal that allowed companies like Waymo to expand throughout the state.

February 20, 2026

Friday Video: How Many ‘Better Billion’ Plans Are There?

Apparently, there are lots of better ways to spend $1 billion.

February 20, 2026

Friday’s Headlines: You’ve Gov To See It For Yourself Edition

South Bronx anti-highway advocates want Gov. Hochul to come see the site of her proposed Cross Bronx widening for herself. Plus more news.

February 20, 2026

SEE IT: Placard Corruption at Antonio Reynoso’s Brooklyn Borough Hall

The progressive darling promised to end the rampant practice of illegal parking around Borough Hall — but has continued to issue unofficial placards that enable it.

February 19, 2026

Thursday’s Headlines: Set Our Calendar Edition

The next four weeks are setting up to be the World Cup tournament of the livable streets movement. Plus other news.

February 19, 2026

Cycle Club Sues City, Calling Central Park Bike Speed Limit A ‘Real Threat’ To Active Transportation

The oldest recreational bike club sued the city alleging it overstepped with 15 mile per hour speed limit in Central Park.

February 18, 2026
See all posts