The line was extended to Temescal Creek in 1870 and to the University of California, Berkeley campus in 1873 for a total distance of 5.5 miles (8.9 km).

[2] Comstock Lode silver baron James Graham Fair purchased the line in 1885 and converted some segments to the 3 ft (914 mm) narrow gauge of his connecting South Pacific Coast Railroad.

[2] Pacific Improvement Company electrified the line in 1892,[1] with service beginning the following January simultaneously to the Lorin Branch down Alcatraz Avenue.

[3][4] The electrified line merged into the Key System predecessor Oakland Transit Company in 1901.

The body of one of the original horse cars survived until 1948 as a playhouse for the children of a family on Delaware Street in Berkeley,[1] and was subsequently donated to the California State Railroad Museum.