The Washington Street Elevated, including Dover station, opened as part of the Main Line Elevated on June 10, 1901.
It was originally built with a short center island platform, similar to Northampton station to the south.
Like most of the other Elevated stations, both were designed in a Beaux Arts style by Alexander Wadsworth Longfellow, Jr.. Mere months after opening, both stations had their platforms extended for four-car trains.
Eleven years later, Dover was rebuilt with two eight-car-long side platforms in a more utilitarian style, with the new station opening on December 9, 1912.
A temporary wooden station was used during construction.

The Main Line Elevated was renamed the Orange Line in 1965.
Dover station was closed on April 30, 1987, when the Washington Street Elevated was closed and the Orange Line was rerouted to the west along the Southwest Corridor.
Silver Line service on Washington Street began on July 20, 2002, replacing the route 49 bus.
Service levels doubled on October 15, 2009 with the introduction of the SL4 route.
The Washington Street Elevated, including Dover station, opened as part of the Main Line Elevated on June 10, 1901. It was originally built with a short center island platform, similar to Northampton station to the south. Like most of the other Elevated stations, both were designed in a Beaux Arts style by Alexander Wadsworth Longfellow, Jr.. Mere months after opening, both stations had their platforms extended for four-car trains. Eleven years later, Dover was rebuilt with two eight-car-long side platforms in a more utilitarian style, with the new station opening on December 9, 1912. A temporary wooden station was used during construction.
The Main Line Elevated was renamed the Orange Line in 1965. Dover station was closed on April 30, 1987, when the Washington Street Elevated was closed and the Orange Line was rerouted to the west along the Southwest Corridor. Silver Line service on Washington Street began on July 20, 2002, replacing the route 49 bus. Service levels doubled on October 15, 2009 with the introduction of the SL4 route.
Dover station (MBTA)