The private Market Street Railway opened a branch - built in just six days - of its Mission Street line along Ocean Avenue to Victoria Street on December 4 , 1895 to serve the new Ingleside Racetrack . The line was extended to the Ingleside House ( where Ocean Avenue now meets Junipero Serra Boulevard ) shortly thereafter . The 1906 earthquake damaged many cable car and streetcar lines ; the URR resumed service on the Ocean Avenue ( 12 ) line on May 6 , 1906 . On November 25 , 1918 , the city and the struggling URR signed the " Parkside Agreements " , which allowed Muni streetcars to use URR trackage on Junipero Serra Boulevard , Ocean Avenue , and Taraval Street , in exchange for a cash payment and shared maintenance costs . The K Ingleside line was extended south on Junipero Serra Boulevard and east on Ocean to Ocean and Miramar on February 21 , 1919 . The city purchased the private company ( renamed Market Street Railway in 1921 ) in 1944 ; route 12 service was removed from Ocean Avenue on April 8 , 1945 , leaving just the K Ingleside
1906 earthquake
1906 San Francisco earthquake
Ocean and Fairfield / Ocean and Victoria stations