Local pickPhoto by User:Chmehl on Wikimedia Commons
Cable Car Museum
The working powerhouse that pulls every cable car in San Francisco. Giant sheaves spin in the basement while antique cars from the 1870s sit on display upstairs. Free, open daily, and the only place on earth where you can watch a cable car system's beating heart.
You're standing inside the Washington-Mason powerhouse, the building that has pulled every cable car in San Francisco since the system was rebuilt after the 1906 earthquake. Look down through the gallery windows. Those six fourteen-foot sheaves are spinning right now, pulling steel cables through channels under the street at nine and a half miles an hour. Each of the four remaining cable lines has its own five-hundred-ten-horsepower electric motor. The cables run in a figure eight around the sheaves to keep them from slipping.
Upstairs, three antique cable cars sit on the floor. Car Number 8 is the real prize. It ran on the Clay Street Hill Railroad, the very first cable car line, which opened in August 1873. Andrew Hallidie, a wire-rope manufacturer who had built aerial tramways for gold mines, invented the grip after watching horses slip and die on San Francisco's wet cobblestone grades. The Clay Street line proved the idea worked, and within a decade the city had more than a hundred miles of cable track.





