Actions Needed to Improve FTA's Oversight of the Dulles Corridor Metrorail Project's Phase 1
On July 26, 2012, we issued our report on the Federal Transit Administration’s (FTA) oversight of phase 1 of the Dulles Corridor Metrorail project. This was a self-initiated audit subsequent to a Management Advisory we issued in October 2009, which expressed concerns about the safety of using 11 pier foundations to support part of the Dulles project’s guideway. Our audit found that while FTA implemented an oversight process to ensure that MWAA tested the 30-year-old pier foundations, the testing process has not yet provided assurance that the structures will meet the 50-year service life specified in FTA guidance. We also found that, as of February 2012, when we issued our draft report, FTA had not taken sufficient mitigation actions to address key project issues that put the schedule, cost estimate, and funding from the 2009 Full Funding Grant Agreement at risk. In its response to our draft report, FTA agreed to direct additional testing to further ensure the 50-year service life for the structures and to take acceptable actions to address the key project issues we raised.