The Charlestown Bridge, officially named the William Felton "Bill" Russell Bridge, is located in Boston and spans the Charles River. As the river's easternmost crossing, the bridge connects the neighborhoods of Charlestown and the North End. The bridge carries a portion of the Freedom Trail linking to the USS Constitution and Bunker Hill. To the north of the bridge, Route 99 begins and the street becomes New Rutherford Avenue.

The original structure was completed in 1900. Replacement of that bridge started in fall 2018 and is expected to be completed in early 2025. The new bridge was named in honor of Bill Russell, a notable figure in the history of the Boston Celtics and a recipient of the Presidential Medal of Freedom, in October 2024.