I. General scope of the problem -- II. Types and volume of traffic -- III. Effect of San Francisco bridgehead on city plans -- IV. Interests of the East Bay -- V. Interests of Navigation -- VI. Interests of the War and Navy Departments -- VII. Engineering problems -- VIII. Financial feasibility -- IX. Public ownership of a bridge -- X. Description of projects.

Winner of TransportiCA’s September Book Club Award 2018 On 17 October 1989 one the largest earthquakes to occur in California since the San Francisco earthquake of April 1906 struck Northern California. Damage was extensive, none more so than the partial collapse of the San Francisco–Oakland Bay Bridge’s eastern span, a vital link used by hundreds of thousands of Californians every day. The bridge was closed for a month for repairs and then reopened to traffic. But what ensued over the next 25 years is the extraordinary story that Karen Trapenberg Frick tells here. It is a cautionary tale to which any governing authority embarking on a megaproject should pay heed. She describes the process by which the bridge was eventually replaced as an exercise in shadowboxing which pitted the combined talents and shortcomings, partnerships and jealousies, ingenuity and obtuseness, generosity and parsimony of the State’s and the region’s leading elected officials, engineers, architects and other members of the governing elites against a collectively imagined future catastrophe of unknown proportions. In so doing she highlights three key questions: If safety was the reason to replace the bridge, why did it take almost 25 years to do so? How did an original estimate of $250 million in 1995 soar to $6.5 billion by 2014? And why was such a complex design chosen? Her final chapter – part epilogue, part reflection – provides recommendations to improve megaproject delivery and design.

A Tale of Two Bridges is a history of two versions of the San Francisco—Oakland Bay Bridge: the original bridge built in 1936 and a replacement for the eastern half of the bridge finished in 2013. The 1936 bridge revolutionized transportation in the Bay Area and profoundly influenced settlement patterns in the region. It was also a remarkable feat of engineering. In the 1950s the American Society of Civil Engineers adopted a list of the “Seven Engineering Wonders” of the United States. The 1936 structure was the only bridge on the list, besting even the more famous Golden Gate Bridge. One of its greatest achievements was that it was built on time (in less than three years) and came in under budget. Mikesell explores in fascinating detail how the bridge was designed by a collection of the best-known engineers in the country as well as the heroic story of its construction by largely unskilled laborers from California, joined by highly skilled steel workers. By contrast, the East Span replacement, which was planned between 1989 and 1998, and built between 1998 and 2013, fell victim to cost overruns in the billions of dollars, was a decade behind schedule, and suffered from structural problems that has made it a perpetual maintenance nightmare. This is narrative history in its purest form. Mikesell excels at explaining highly technical engineering issues in language that can be understood and appreciated by general readers. Here is the story of two very important bridges, which provides a fair but uncompromising analysis of why one bridge succeeded and the other did not.