Header for US Department of Transportation Blog

You are here

4th bore partnership helps Caldecott Tunnel turn a corner

4th bore partnership helps Caldecott Tunnel turn a corner

With the opening Friday of a fourth tube in the Caldecott Tunnel, commuters in the Bay Area will turn the page on a new chapter in transportation.

It’s a chapter about the effectiveness of partnership, a partnership of dedicated workers, a 130-ton rock-cutting drill, the state of California, and –I’m proud to say– the U.S. Department of Transportation. How effective? As the Contra Costa Times reported, the new lanes opened ahead of schedule and under budget.

Photot of workers putting finishing touches on Caldecott Tunnel tube
Workers put finishing touches on new Caldecott bore; all photos courtesy Caltrans.

By adding a new travel lane in each direction and eliminating a dreaded, traffic-halting bottleneck, it's also about saving families time, reducing the pollution associated with road congestion, and helping area businesses ensure that their customers have reliable access.

The Caldecott Tunnel is traveled by commuters in and around East Bay communities like the City of Oakland and Contra Costa County. But it's also a key route for those traveling between the Bay Area and Napa, Sonoma, and Solano Counties. In fact, nearly 160,000 drivers each day use the tunnel. The two new lanes will make a significant difference in their travels and in their quality of life.

Photo of Secretary Foxx at Caldecott opening

During President Obama’s time in office, the Recovery Act and other core infrastructure funds have helped improve more than 330,000 miles of U.S. roads, and they’ve led to the creation of millions of jobs.

But, of all the highway projects undertaken with Recovery Act funds, the Caldecott Tunnel’s fourth bore is certainly one of the largest. 

This project received $194 million in federal funding. And now that the tube is officially open to drivers, the two new travel lanes can begin freeing up the flow of traffic and improving safety.

Photo of tunnel work and workers

And, while construction on the Caldecott is drawing to a close, there are countless projects like it that are waiting to get started across the country.

The United States has the best transportation system in the world. And President Obama and all of us at DOT are committed to ensuring that it stays that way. 

But that requires investing in our transportation system.  Not only to maintain the tunnels, bridges, runways and rails that we already have, but to build the ones our growing population and economy need. That’s why, just last week, the President called for more transportation investment and said that “rebuilding our infrastructure could be part of a bipartisan budget deal.”

In a country where so many issues are so divisive, more and more people are coming to see what those who travel the Caldecott today will see: a remarkable work of engineering, the hard work of the thousands of men and women who helped build it, and the effective partnership that improved a critical transportation resource.

The better roads, rails, and runways President Obama and DOT have in mind don’t just keep Americans moving; they keep the American economy moving, too.

Post new comment


I like all the work that the President & DOT are doing but I cannot believe that the US has "the best transportation system in the world". Having just spent a few weeks in Japan, their rail system is convenient, very efficient, fast and moves the population around the country very well. The US infrastructure needs a lot of money spent on it to bring it up to world standards.

I applaud the the construction of the new lanes in Caldecott Tunnel being completed ahead of time and under budget. It is a good example of how government agencies can successfully and efficiently implement plans that can help the American people. Although the project was impressively executed, I fear that adding more lanes to highways is just a temporary solution. Congestion and the costs that come with it continue to grow. It seems to me that it would be wiser in the long run to invest in better public transportation. If publicly run buses and trains were more convenient and reliable to the point where the American people prefer public transportation to driving cars, we would see less pollution, less congestion, and fewer car accidents. None of this is to take away from the achievement at Caldecott Tunnel. The success of this project gives me hope that the Department of Transportation will be able to invest wisely in the future of America's infrastructure.
Submit Feedback >