Subway construction on Ashland Place, north of Lafayette Avenue, January 30, 1911. The excavation underway was for the BMT Fourth Avenue line, which runs under Ashland Place between Fulton Street and the start of Fourth Avenue at Flatbush Avenue. The elevated line in the middle ground is the Fulton Street El.

In the opening decades of the 20th Century, the proliferation of new subway lines in Brooklyn changed the shape of Brooklyn's busiest intersections; new routes were excavated and transit hubs born, replacing the streetcars and elevated railways of years past. This collection includes a selection of photographs documenting subway construction in and around Times Plaza, Flatbush Avenue, and Ashland Place.