The square stands immediately to the north of the Charles River,[3] which is crossed by the Watertown Bridge on Galen Street.

The Armenian Library and Museum of America is located in the square; Watertown Dam is 1,000 feet (300 m) to the west.

[6] The city plans to reconfigure the square to add public space and support future housing development.

Charles River Road and Riverside Street would be rerouted to the east, creating a standard four-way intersection between Main/North Beacon and Galen/Mount Auburn.

MBTA routes 59 and 71 would be extended to Watertown Yard, with the Columbus Delta park expanded onto the former busway area.