Clay Street Hill Railroad
| Clay Street Hill Railroad | |
|---|---|
| Location | Clay Street, San Francisco |
| Built | August 1, 1873 |
| Demolished | February 15, 1942 |
| Official name | Eastern terminus of the Clay Street Hill Railroad |
| Designated | 1952 |
| Reference no. | 500 |
The Clay Street Hill Railroad was the first successful cable hauled street railway. It was located on Clay Street, a notably steep street in San Francisco in California, United States, and first operated in August 1873. The company itself was short lived, but the underlying technology in its propulsion system set a template for similar systems worldwide.