The ongoing San Bruno Grade Separation Project, which Caltrain began in Dec. 2010 and was initially expected to finish by summer 2012, will cause a slight disturbance over the coming days.

From Nov. 24 - 30, the stations at San Bruno, San Mateo and Angus Avenue will have night work from 8 p.m. until 6 a.m.

"There will be some construction noise but crews will work as quietly as possible," Caltrain said in an official statement. 

The work is not expected to cause any service delays. 

Additionally, between Nov. 25 and 29, Caltrain said that "crews will operate medium duty on-track machinery to remove and replace ties between the San Francisco and San Bruno stations," so plan your trips accordingly. 

The San Bruno Grade Separation Project is a $147 million upgrade elevating the tracks at the three stations listed above. 

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