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The Dolphin–Palmetto Interchange, also known as 826–836, is a complex four-level
Project website (FDOT)
{{DEFAULTSORT:Dolphin-Palmetto Interchange Road interchanges in the United States Roads in Miami-Dade County, Florida
The Dolphin–Palmetto Interchange, also known as 826–836, is a complex four-level stack interchange
A directional interchange, colloquially known as a stack interchange, is a type of grade-separated junction between two controlled-access highways that allows for free-flowing movement to and from all directions of traffic. These interchanges ...
in Miami-Dade County
Miami-Dade County is a county located in the southeastern part of the U.S. state of Florida. The county had a population of 2,701,767 as of the 2020 census, making it the most populous county in Florida and the seventh-most populous county in ...
, Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, a ...
. It primarily serves as a highway interchange between State Road 826 (SR 826, Palmetto Expressway) and SR 836 (Dolphin Expressway), but also has ramps to surface streets such as SR 969 (Milam Dairy Road) and Flagler Street
Flagler Street is a main east–west road in Miami. Flagler Street is the latitudinal baseline that divides all the streets on the Miami-Dade County grid plan as north or south streets (the east-west division is along Miami Avenue). Flagl ...
.
History
The reconstruction project was completed in phases from 2012 to 2015-2016, at a cost of about $560 million, with related construction beginning in 2009, replacing the old two-leveldiamond interchange
A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road.
Design
The freeway itself is grade-separated from the minor road, one crossing the other over a bridge. Approaching the ...
. The interchange was considered well beyond safe capacity, serving over 400,000 vehicles per day. The reconstruction was the final phase in a 12-step program to improve the highly trafficked Palmetto Expressway, though in 2014 a new project to add express lanes to the Palmetto Expressway was proposed, to begin construction in 2016. Much work also remains for the Dolphin Expressway. Work took place with phased detours, closures, and openings. All roads involved were kept open throughout construction. Much of the new interchange opened in October 2015, including the two highest flyovers, with completion at that point scheduled for March 2016. By summer 2016, the interchange was objectively complete. The official announcement came in early October, very near budget ($563 million) but a couple years over time. The project included moving a drainage canal and construction of 45 individual bridges, with the interchange serving 430,000 vehicles daily. The main four levels of the interchange are the Palmetto at ground level under the Dolphin Expressway, the Dolphin-to-Palmetto left-hand flyovers, then the Palmetto-to-Dolphin left-hand flyovers on top. As of 2016, it's the largest stack interchange in Miami (surpassing the Midtown Interchange
The Midtown Interchange, located in the Civic Center and Overtown neighborhoods of Miami, Florida, is the convergence of three major motorways: I-95, I-395 (which connects to the MacArthur Causeway to the east), and the Dolphin Expressway (SR 83 ...
).
See also
* Transportation in South Florida *Midtown Interchange
The Midtown Interchange, located in the Civic Center and Overtown neighborhoods of Miami, Florida, is the convergence of three major motorways: I-95, I-395 (which connects to the MacArthur Causeway to the east), and the Dolphin Expressway (SR 83 ...
*Golden Glades Interchange
The Golden Glades Interchange, located in Miami Gardens and North Miami Beach, Florida, United States, is the confluence of six major roads serving eastern and southern Florida. It is named after the original name of North 167th Street, Golden ...
*Rainbow Interchange
The Rainbow Interchange was a four–level stack interchange located in Fort Lauderdale, Florida near the Fort Lauderdale-Hollywood International Airport. The interchange connects two major highways in the area, I-95 (leading to Miami and West Pa ...
References
External links
Project website (FDOT)
{{DEFAULTSORT:Dolphin-Palmetto Interchange Road interchanges in the United States Roads in Miami-Dade County, Florida