This blog entry is the second of four installments in a series of blog posts for a class assignment.

As a part of a project for my Oceans class at UC Berkeley, I took a walk on the Oakland-San Francisco Bay Bridge. Or so I thought I would be.

The image at the top of the page was taken during this trip.

Speaking with peers, I was incredibly excited to take on this assignment and cross the Bay Bridge on foot. I was told this was only possible on the SF Golden Gate bridge; however, I was (incorrectly) quite sure that the Bay Bridge allowed pedestrians to cross on the sidewalks.

It turns out that it's impossible to cross the Bay Bridge on foot or on bike.

This video of the "Bay Bridge Pedestrian Project" summarizes this situation quite well.

Given by the Metropolitan Transportation Commission, we have the following summary:

When the new Bay Bridge East Span opened in 2013, pedestrians and bicyclists fell in love with the 15-foot-wide shared-use pathway that stretched initially from Oakland to the iconic single tower and, since 2016, all the way to Yerba Buena Island.  

BATA, Caltrans and a multidisciplinary team of engineers and consultants are currently studying whether we can eventually extend this path – enjoyed by thousands of residents and visitors every year – around the island and across the West Span of the bridge into downtown San Francisco.  

In addition to providing a continuous bike/pedestrian route from Oakland to San Francisco, the project also would improve access to the West Span for Caltrans maintenance crews, thereby reducing the need for lane closures on the historic bridge.

Commuting for school or work is a largely pressing issue, and it's critical that we treat this problem adequately. As the housing problem in the San Francisco Bay Area is largely a difficulty for many people, it's certainly helpful to look into alternative solutions to transportation.

I do feel that in order to feel strongly about the completion of the Bay Bridge Bike Trail, one should visit the trail and experience the beauty first-hand. I highly recommend the trail; just beware that it is an obligatory round-trip, as the bridge is not connected on both ends!

More information about the bike path can be found here on the official website.


The website lists the following information:

The Bay Bridge Trail is a part of the San Francisco Bay Trail.  The Bay Bridge Trail is named in honor of Alex Zuckermann, the late East Bay Bicycle Coalition founder and Bay Bridge Trail advocate.  A plaque bearing his name is located on the trail which extends over 4 miles from Emeryville to Yerba Buena Island (San Francisco).  The first two-thirds of the Bay Bridge Trail, from Emeryville to the Oakland touchdown, opened in September 2013.  In October 2016, the Bicycle and Pedestrian Path across the East Span of the San Francisco-Oakland Bay Bridge opened, enabling cyclists and pedestrians to traverse past the East Span’s signature 525-foot tower to the new landing area and Vista Point on Yerba Buena Island.  The length of the path on the East Span of the Bay Bridge is 2.2 miles from Oakland to Yerba Buena Island.
To ensure user safety, the 15.5-foot-wide path has one lane in each direction for bicyclists and an outside lane designated for pedestrians.
Map of Bike Trail
The daily hours of the Bicycle & Pedestrian Path on the East Span of the Bay Bridge are from 6:00 AM to 9:00 PM.
The Bay Bridge Trail is open 24 hours a day, 7 days a week from the trailhead on Shellmound Street in Emeryville to the Caltrans Bridge Yard Building at 210 Burma Road, Oakland.

Unfortunately, there are design and funding challenges countering the completion of the bike trail. Given by the Metropolitan Transportation Commission, we have the following:

Design Challenges

Initial studies conducted as early as 2001 and again in 2014 looked at the feasibility of building a path on the Bay Bridge West Span. But the first rounds of pathway alternatives studied were either too pricey to even consider, or lacked enough design to get a proper cost estimate.
Plans to extend the path face plenty of design challenges beyond the need to cut costs. These include:
  • Right-of-way acquisition
  • Seismic safety
  • Strong winds
  • Access for maintenance crews
  • Shipping channel clearance
  • Access for disabled travelers, including those using wheelchairs
  • Planned development in San Francisco and on Yerba Buena Island
  • Connections to existing street and road systems
  • Environmental impacts
The project team is now recommending a preferred design alternative, with an alignment running along the north side of the West Span, with a touchdown in San Francisco at Essex Street. The recommended alignment for the Yerba Buena Island connection is from Southgate Road along the east side of Hillcrest Road.

Funding Challenges

Although the proposed design addresses the technical challenges of adding a path to the span, it still faces funding challenges. Estimated costs for a project of this type run into the hundreds of millions of dollars. No source of funding has yet been identified, and the project cannot be financed under the current toll structure.
Even if a funding source can be identified, construction of a West Span bike/ped path could be a 10-year project from start to finish.
This includes up to three or four years to complete preliminary designs and environmental review, two years for final design and right-of-way acquisition, and then up to four years of construction.