San Francisco cable car system

The San Francisco cable car system is the world's last manually operated cable car system and one of the most enduring symbols of San Francisco. The system is the world's last manually operated cable car system and an icon of the city of San Francisco. It forms part of the intermodal urban transport network operated by the San Francisco Municipal Railway (Muni), and of the 23 cable car lines established between 1873 and 1890, only three remain: two routes from downtown near Union Square to Fisherman's Wharf, and a third route along California Street. The cable cars are among the most significant tourist attractions in the city, along with Alcatraz Island, the Golden Gate Bridge, and Fisherman's Wharf, and are listed on the National Register of Historic Places as one of only two street railways named a National Historic Landmark, along with the St. Charles Streetcar Line in New Orleans.

Origins and Invention

Andrew Smith Hallidie tested the first cable car at 4 o'clock in the morning on August 2, 1873, on San Francisco's Clay Street. His idea for a steam engine-powered, cable-driven rail system was conceived in 1869, after witnessing horses being whipped while they struggled on the wet cobblestones to pull a horsecar up Jackson Street. Hallidie's father was an inventor who held a patent in Great Britain for "wire rope" cable. Hallidie immigrated to the United States in 1852 during the Gold Rush and began using cable in a system he had developed to haul ore from mines and in building suspension bridges.

At first his plan was met with considerable skepticism; one newspaper called the idea "Hallidie's Folly," and it seemed unthinkable that any force could drag a car up Clay Street. Undeterred, Hallidie entered into a partnership to form the Clay Street Hill Railroad, which began construction of a cable line on Clay Street in May of 1873. The contract to operate on city streets stated the line must be operational by August 1; it launched on August 2, and even though they were a day late, the cable car trials received great approval. Clay Street Hill Railroad began public service on September 1, 1873.

Not only could cable cars climb hills horses could not, on level ground cable cars were almost twice as fast as horse-drawn streetcars. Private transit companies in numerous cities soon embraced them. In exchange for higher installation costs, they saved the considerable cost of caring for horses, and the faster speed meant more passengers and fares. This new technology spread quickly around America, to two dozen cities including Chicago, New York, Washington D.C., Los Angeles, Seattle, and Oakland. Cable cars went international too, with installations in London, Paris, Melbourne, Sydney, and other cities.

Expansion and Peak of the Network

The Clay Street Hill Railroad was the sole San Francisco cable car company for four years. A former horsecar company, the Sutter Street Railroad, developed its own version of Hallidie's patented system and began cable service in 1877, followed by the California Street Cable Railroad (1878), Geary Street, Park & Ocean Railroad (1880), Presidio & Ferries Railroad (1882), Market Street Cable Railway (1883), Ferries & Cliff House Railway (1888), and Omnibus Railroad & Cable Company (1889).

In 1883, the Market Street Cable Railway opened its first line. This company was controlled by the Southern Pacific Railroad and would grow to become San Francisco's largest cable car operator. At its peak, it operated five lines, all of which converged on Market Street to a common terminus at the Ferry Building. During rush hours, cars left that terminus every 15 seconds.

All totaled, San Francisco companies had laid down 53 miles of track stretching from the Ferry Building to the Presidio, to Golden Gate Park, to the Castro, and to the Mission. Originally, the cable cars were powered by stationary steam engines. The steam engines consumed about 10 tons of coal a day and created heavy black smoke that had to be vented with a 185-foot tall smokestack. In 1901, the system was converted to oil, which lessened the amount of smoke and allowed the smokestack to be shortened to only 60 feet tall; this smaller smokestack still exists today and can be seen at Washington-Mason.

The network's dominance was, however, short-lived. In 1888, Frank Sprague inaugurated the first practical electric streetcar line in Richmond, Virginia. Taking advantage of rapid improvements in electric motors, streetcars could run twice as fast as cable cars and soon replaced them on flat routes, including in San Francisco. The 1906 San Francisco earthquake allowed the United Railroads of San Francisco to have its way with electrification. The damage caused by the 7.9-magnitude earthquake destroyed the powerhouses and car barns and the 117 cable cars stored within them. The city raced to rebuild, and URR was able to replace most of its cable lines with electric streetcar lines. By 1912, only eight cable car lines were left.

Preservation Battles

The decades following the 1906 earthquake saw continued pressure on the surviving cable car system. The remaining lines faced sustained pressure in the 1920s and 1930s from motor buses, which were able to climb steeper hills than the electric streetcar. Only five cable car lines survived by 1944: two municipal lines and three independently owned lines from Cal Cable. By 1941, when cable lines in Seattle and Tacoma closed, San Francisco had the only street-running cable cars in America.

In 1947, Mayor Roger Lapham proposed eliminating the system. This sparked a public outcry led by Friedel Klussmann and the Citizens' Committee to Save the Cable Cars. Their efforts culminated in the successful passage of Measure 10 in 1947, ensuring the preservation of the Powell Street cable car lines. In 1952, the city took control of San Francisco's other surviving cable car lines, owned by the bankrupt California Street Cable Railroad Company. Two years later, a second cable car war led to a consolidation of cable car service, cutting trackage in half. The combination of two former routes created the popular Powell–Hyde line in 1957. That same year, a cable line in Dunedin, New Zealand, closed, and San Francisco became unique in operating a street-running railway system powered by an endless underground cable.

In 1964, San Francisco's cable cars were named the first moving National Historic Landmark. In 1971, San Francisco voters mandated the continued operation of cable cars and minimum levels of service — only another vote of the people could change that.

The 1982–1984 Rebuild

By the late 1970s, the aging infrastructure of the cable car system had become a serious safety concern. Time was taking its toll: repairs were no longer enough to keep the underground pulleys, channels, sheaves, and bumper bars in top shape, while the electric motors and giant winding wheels in the cable car barn and powerhouse were worn out, and the building itself was prone to earthquake damage.

A subsequent engineering evaluation concluded that it needed comprehensive rebuilding at a cost of US$60 million (equivalent to $266 million in 2025). Mayor Dianne Feinstein, who took charge of the effort, helped win federal funding for the bulk of the rebuilding job. In 1982, the cable car system was closed for the rebuild, which involved the replacement of 69 city blocks' worth of tracks and cable channels, a rebuilding of the car barn and powerhouse within the original outer brick walls, new propulsion equipment, and the repair or rebuild of 37 cable cars. The Historic Trolley Festival was launched the following June as an expected-to-be-temporary substitute tourist attraction during the long closure. The system reopened on June 21, 1984, in time to benefit from the publicity that accompanied San Francisco's hosting of that year's Democratic National Convention.

The system received another rebuild between 2017 and 2019, when Muni rehabilitated the cable car system's gearboxes, which hadn't been updated since they began service in 1984.

How the System Works

The cable car system operates on a principle that has remained largely unchanged since 1873. The cable cars move by gripping an underground cable that is in constant motion, powered by an engine located in a central powerhouse. Each cable car has a mechanical grip which latches onto the cable, much like a huge pair of pliers. The gripman (or gripwoman) can "take" or "drop" the cable as needed to start or stop the car. The cables move at a constant 9.5 miles per hour.

Cable cars have three kinds of brakes: wheel brakes, track brakes, and an emergency brake. The system also uses a rare slot brake, ensuring a smooth and controlled descent down San Francisco's famous hills. Operating the grip requires significant physical strength: applicants must be able to pull and maneuver the 300-pound grip lever that controls the cable beneath the tracks. The intensive training program for new operators lasts six to eight weeks.

Today, there are two types of cable cars in regular service. Though they differ in appearance, their operation is almost identical. The California Street Cable Car Line uses twelve larger, maroon cable cars which have an open seating section at each end and a closed section in the middle. These cars can be operated from either end and turn around by means of a simple switch at the end of the line. The Powell–Mason and Powell–Hyde lines, by contrast, use smaller cars that require manual turntables at the end of each route. Constructed from oak, Alaskan spruce, brass, and steel, the cable cars are a testament to durable craftsmanship and timeless design.

Current Operations and Cultural Significance

Today, San Francisco's cable cars are one of two National Historic Streetcar Landmarks in operation — New Orleans' St. Charles streetcar line is the other — and both the continued operation and minimum level of service of the cable cars are locked into San Francisco's City Charter.

The cable car lines serve around seven million passengers per year, but the vast majority are tourists rather than commuters. As a result, the wait to board can often reach two hours or more. San Francisco's cable cars travel at a top speed of approximately 9.5 miles per hour. Currently, San Francisco operates 40 cable cars across its three lines: the Powell–Hyde line, the Powell–Mason line, and the California Street line.

The system was shut down in March 2020 to protect operators during the COVID-19 pandemic, as cable cars do not offer a compartment separating them from passengers. Limited service on all three lines resumed on August 2, 2021, and full revenue service began on September 4.

The free Cable Car Museum at Washington and Mason Streets is open Tuesdays through Sundays. It sits right where the two Powell lines meet, and two blocks north of the California line. The museum occupies the mezzanine level of Muni's historic Cable Car Barn & Powerhouse, where visitors can see the vintage cable winding machinery doing its job and watch the cables leave the barn underground to pull the cars. Antique cable cars, including one from Hallidie's original Clay Street Hill Railroad, are on display as well.

Each year, cable car operators compete in a bell-ringing contest, showcasing their skill and style to a cheering audience. The annual contest, held in Union Square, draws thousands of spectators and has become a beloved civic tradition in its own right.