From $250 Million to $6.5 Billion: The Bay Bridge Cost Overrun

After the 1989 Loma Prieta earthquake that rocked the Bay Area, officials got serious about rebuilding the vulnerable Bay Bridge connecting San Francisco and Oakland. The first cost estimates, released in 1995, figured both east and west spans of the bridge could be upgraded for a cuddly $250 million. By the time the new east span opened in September 2013 the price tag for that span alone had reached a reported $6.5 billion, with a B. Just your run-of-the-mill rise of 2,500 percent.

UC Berkeley planning scholar Karen Trapenberg Frick meticulously chronicles the reconstructed bridge in a new book, Remaking the San Francisco-Oakland Bay Bridge. With Frick and her book as guide, CityLab tracked bridge expenses over time to get some sense of how the project that Herbert Hoover once called “the greatest bridge yet constructed in the world” became yet another example of a major public works project in which the cost ended outrageously higher than it began—and some ideas for what to do about it.