MacArthur Causeway

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MacArthur Causeway
County Causeway
Watson Island.png
The entirety of the causeway, connecting Downtown and South Beach
Carries 6 lanes of
SR 836 / US 41 / SR A1A
Crosses Biscayne Bay
Locale Miami to Miami Beach
Official name General Douglas MacArthur Causeway
Maintained by FDOT
Design Causeway, beam
Material Slabs, girders, fill
Total length 3.5 miles (5.6 km)
Longest span 0.4 miles (0.64 km)
Clearance above 68 feet (21 m)
Designer Frederic R. Harris, Inc., American Bridge Company
Opened February 17, 1920; 99 years ago (1920-02-17)[1]

The General Douglas MacArthur Causeway is a six-lane causeway which connects Downtown, Miami, Florida and South Beach, Miami Beach via Biscayne Bay.

The highway is the singular roadway connecting the mainland and beaches to Watson Island and the bay neighborhoods of Palm Island, Hibiscus Island, and Star Island. The MacArthur Causeway carries State Road 836 and State Road A1A over the Biscayne Bay. Interstate 395 ends at Fountain Street, the entrance to Palm Island Park which has a traffic light as well as bus stops.


In the late 1910s, with the deteriorating wooden Collins Bridge (now, the Venetian Causeway) as the only direct land route between mainland Miami and the barrier islands of Miami Beach, construction on the roadway began in 1917. The roadway, dedicated as the County Causeway, was completed in 1920. Watson Island was reclaimed surrounding the western end of the roadway, completed in 1926.

Having undergone several lane and structural expansions following opening of the original two-lane road, the State Road Board and Dade County Commission voted to rename the causeway in honor of World War II General Douglas MacArthur in 1942.[2] The causeway was accessible from mainland Miami via Biscayne Boulevard and intersecting side streets through the 1990s, when replacement of the western- and easternmost spans and construction of direct highway access to I-395 began. The eastbound lanes of the bridges were completed in 1995, and westbound lanes finished in 1997.



  1. Lavender, Abraham (2002). Miami Beach in 1920. Mount Pleasant, SC: Arcadia Publishing. p. 160. ISBN 0-7385-2351-8.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "Causeway Our Thanks for Bataan". The Miami News. April 6, 1964. p. 1A. Retrieved October 20, 2010.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

External links

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