We went underneath San Francisco to bring you an update of the Central Subway Project, slated to be finished in 2019. 

The current construction will provide a much needed direct transit link between North and South San Francisco, connecting old SF (Chinatown, Financial District, and SOMA) to new SF (Bayshore and Mission Bay). 

The first tunnel excavating machine has just arrived and four new stations will eventually be constructed. A map of the project details the final route. Check out what it takes to get this dirty job done! For more details and information, click here. 

Map provided by the SFMTA