From SFBC:
The west sidewalk of the Golden Gate Bridge will be closed again for a few months, this time to create a better, smoother new pathway approach. From January 17th to approximately April 1st (weather depending), bicycle traffic will roll on the bridge's east sidewalk around the clock, sharing the narrow right-of-way with pedestrians -- please be extra alert and courteous as you make your way across. Read more about the project.