The Leonard P. Zakim Bunker Hill Memorial Bridge is a cable-stayed bridge that carries eight lanes of the Interstate 93 and U.S. Route 1 concurrency, plus a two lane access ramp, across the Charles River in Boston, Massachusetts.
Finished in 2003, the bridge's unique styling quickly became an icon for Boston, often featured in the backdrop of national news channels to establish location, and included on tourist souvenirs. The bridge is commonly referred to as the "Zakim Bridge" and as the "Bunker Hill Bridge" by residents of nearby Charlestown. The full name is often used as well.
The bridge was built as part of the Big Dig, the largest highway construction project in the United States. The entrance to the Thomas P. "Tip" O'Neill Jr. Tunnel, another major component of the Big Dig, is at the bridge's southern end, while north of the bridge I-93 heads toward New Hampshire and US 1 splits from the Interstate and travels northeast toward Massachusetts' north shore, crossing the Mystic River via the Tobin Bridge. The bridge replaced the Charlestown High Bridge when it opened, and is the world's widest cable-stayed bridge.
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