 A suspected arson fire destroyed part of the western timber trestle approach to the Dumbarton Rail Bridge in January 1998, although the 1996 "Dumbarton Rail Corridor Rehabilitation" report (confirmed in a later 1999 study) had already concluded the timber trestles would need to be replaced.In 1998, the estimated cost for reactivating Dumbarton passenger rail service was .That 1999 study (the "Dumbarton Rail Corridor Study", Parsons Transportation Group) put the Dumbarton rail project into the 2000 report "Blueprint for the 21st Century," sponsored by the Metropolitan Transportation Commission (MTC).