The West End electrified its Huntington Avenue line in 1893–94. Work was completed by mid-July 1894 except for a short stretch near the Riverway. On August 4, all Brookline service via Huntington Avenue was converted to electric operation. This included the Washington Street branch (extended to Park Street), the Cypress Street branch, and the Tremont Street tracks to Roxbury Crossing. The Washington Street branch was extended to Beacon Street at on September 1, allowing through service between Reservoir via Brookline Village. On August 15, 1896, an extension of the Beacon Street line opened on Chestnut Hill Avenue and Commonwealth Avenue to Lake Street. Reservoir service via Brookline Village was extended to Lake Street, where a connection was made with the Commonwealth Avenue Street Railway.