Planning Underway for New Bay Bridge Bike Path, and a Second Transbay BART Tube

In a distant and expensive future, there are two new ways to get across the San Francisco Bay without a car. One will have a much better view.

2 minute read

November 19, 2018, 10:00 AM PST

By James Brasuell @CasualBrasuell


"Long the holy grail for cycling advocates in the Bay Area — a bike and pedestrian path spanning the entire length of the Bay Bridge, offering unparalleled views of San Francisco and a carbon-free alternative to soul-sucking traffic — has, for decades, remained tantalizingly out of reach," writes Erin Baldassari.

That holy grail is one step closer to becoming a reality, however, after the Metropolitan Transportation Commission, a regional planning agency spanning nine Bay Area counties, revealed a new study of the Bay Bridge West Span Bike Path last week.

The recent report narrows down six design alternatives created and presented to the public in 2016 to a preferred design alternative. According to the Metropolitan Transportation Commission website set up to promote the project, "[the preferred design alternative] features an alignment running along the north side of the West Span with a touchdown in San Francisco at Essex Street (parallel to First and Second streets, between Folsom to the north and Harrison to the south). The recommendation for the Yerba Buena Island connection joins the East Span path via Southgate Road along the east side of Hillcrest Road. The path would share architectural features will the East Span path, providing continuity of experience along the entire crossing."

According to Bladessari, the new report is the closest regional planners have come to "understanding the full magnitude of construction and its associated costs" (which, by the way, are estimated at $341 million to nearly $429 million).

But wait, there's more non-automotive transportation planning news from the Bay Area: BART has also announced a new planning process for a second transbay tube

Adam Bronklow reports: "The possibility of a second tube—BART’s official announcement suggests that 'tube' may not be the correct term for whatever the agency ends up building, instead stressing the term 'second crossing'—has floated around the Bay Area for decades, but this is the first time BART appears to be planning concrete measures for it."

The BART website set up to promote the planning process includes a list of opportunities and objectives for the project. Among the objectives, the ability to double BART bay crossing capacity.

Brinklow's coverage provides context of the growing popular and political support for the crossing.

Monday, November 19, 2018 in The Mercury News

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and "harrowing" close calls are a growing reality.

June 15 - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

June 15 - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post