MacArthur Causeway, Highway bridge in Miami Beach, United States.
MacArthur Causeway is a highway bridge in Miami Beach, United States, linking downtown Miami to Miami Beach across Biscayne Bay. The structure carries six vehicle lanes and pedestrian walkways, spanning over three miles and crossing several artificial islands.
The crossing opened in 1920 as County Causeway, providing the first fixed connection between Miami and the barrier island. It received its current name in 1942 during World War II to honor General Douglas MacArthur.
The causeway serves as a central artery for the Miami Art Deco district, linking the cultural centers of downtown Miami and South Beach.
The roadway carries Interstate 395 and Florida State Road A1A, providing access to the Port of Miami and cruise terminals. Cyclists and pedestrians can use the separate paths along the span, which offer open views across the bay.
The artificial islands along the route were created from material dredged from the bay floor during construction. These islands now support parks and provide viewpoints along the crossing.
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