With the May 20 , 1887 , sale of the Los Angeles and San Gabriel Valley Railroad to the California Central Railway , a subsidiary railroad of the Atchison , Topeka and Santa Fe Railway , the two lines were connected together at Mud Springs , completing the rail line from Chicago to Los Angeles through the San Gabriel Valley . The Santa Fe line served the San Gabriel Valley until 1994 , when the 1994 Northridge earthquake weakened the bridge in Arcadia
1994 Northridge earthquake
1994 Northridge earthquake
California Central Railway