Internet picture (view from Bunker Hill Monument) "New" Dam and Locks (to left of bridge), near USS Constitution and downsteam of original facilities.Leonard P. Zakim Bunker Hill Memorial Bridge (2002) was built as part of "the Big Dig Project"; the largest and most expensive ($22 billion) highway construction project in the US to reroute the main highway through the heart of the city into 5.6 km tunnel.Its name commemorates both Boston civic leader and civil rights activist, who championed "building bridges between peoples", and the Battle of Bunker Hill.It is the widest "cable-stayed" ("harp" design) bridge in the world carrying 10 lanes of Interstate 93 over the Charles River (i.e. 2 outer lanes are cantilevered outside of the wires and 8 lanes run through the towers). It was a replacement for the Charlestown High Bridge; an older truss bridge constructed in the 1950s.The cables suggest a ship in full sail and also evoke the history of East Boston as a center of shipbuilding.

Illustration and creation by ms. Lisa C. Jackson