You may have heard that the San Francisco-Oakland Bay Bridge is being replaced. (Technically the west span is being retrofitted and the east span is being replaced.) But the $6.3 billion project, which has been underway since 2002, has hit a snag: We learn via the Sacramento Bee that the California Department of Transportation (Caltrans) has fired two employees after a Bee investigation showed that the technician responsible for testing the new bridge foundation’s structural integrity falsified and fabricated test results on other projects. The two fired were: Duane Wiles,who tested foundations for bridges and other freeway structures and Brian Liebich, who supervised Wiles as chief of the agency’s Foundation Testing Branch. The Bee‘s investigation examined about 50,000 internal Caltrans reports and test data documents and reported that Caltrans officials knew about the problems for years, but never conducted a serious investigation. Oops. The new bridge is expected to open to the public by 2013. Hopefully.