Andrew P. McArdle Memorial Bridge, Road bridge in East Boston, United States
The Andrew P. McArdle Memorial Bridge spans Chelsea Creek with a steel truss bascule design, connecting Meridian Street in East Boston to Pearl Street in Chelsea.
The bridge, which opened in 1954, replaced the former Meridian Street Swing Bridge from 1901 and received its name in honor of Andrew P. McArdle.
The bridge structure represents mid-20th century engineering methods with its split rolling bascule design that uses counterweighted spans rolling on semi-circular gears.
The structure stretches 1,075 feet in length and 44 feet in width, maintaining a clearance of 21 feet above water when closed and 157 feet when open.
The bridge carries approximately 23,600 vehicles daily across Chelsea Creek, with trucks making up 4 percent of the total traffic volume.
GPS coordinates: 42.38585,-71.03927
Latest update: November 28, 2025 14:29
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