The Powell-Mason, Powell-Hyde, and California cable car lines will be shut down today through Sunday for "repairs and upgrades" as part of the SFMTA Cable Car Improvement Project. SF Appeal notes: "Muni shuttle buses will operate along the cable car routes with all regular, accessible stops available for passengers." Please be advised.

Cable car Improvements include "replacing aging electronic and mechanical equipment under the cable car trackway along with street repavement along the California line."