When construction shut down parts of the Bay Bridge over Presidents' Day Weekend, one Bay Area dream came true: BART ran around the clock between San Francisco and the East Bay. Oakland North goes underground to find out what happens when the trains don't stop -- and why it can't be like this all the time.

Produced by Rachel Waldholz
Camera by Julia Marshall, Amina Waheed, Byron Wilkes
Maintenance footage courtesy of BART
Produced at the UC Berkeley Graduate School of Journalism

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