The Posey Tube exiting Alameda will close Monday night and stay closed until early Tuesday morning for cleaning, Caltrans officials said.
The tube will close at 10 p.m. and remain closed until 4:30 a.m. Tuesday.
It will be closed again Tuesday and Wednesday at 10 p.m. and stay closed until 4:30 a.m. Wednesday and Thursday mornings.
The Webster Tube entering Alameda will be closed for cleaning from 10 p.m. to 4:30 a.m. the following day on Jan. 29, 30 and 31.
Anyone with questions about the closures can call Eroluis Oseguera with Caltrans at (510) 286-3947.