On its 50th anniversary, BART announced the completion of a seismic retrofit for the Transbay Tube, enhancing its resilience against mega earthquakes anticipated once every thousand years. The $313 million retrofit is part of a broader $1.5 billion safety initiative that spanned two decades, involving over 74 miles of track and 34 stations. BART General Manager Bob Powers highlighted the new stronger steel lining and upgraded pumping system as crucial improvements. Despite the success of the retrofit, BART faces ongoing financial struggles due to diminished ridership from the COVID-19 pandemic, with daily passengers dropping from 460,000 to about 100,000. The Transbay Tube, a marvel of engineering since its inception in 1974, remains a critical asset for Bay Area transit. BART aims to educate the public on the tube's history and engineering through new multimedia resources.