The I-395/SR 836/I-95 Design-Build Project, previously scheduled to start in December 2017, rebuilds the entire viaduct and ramp system between the Midtown Interchange and the Intracoastal Waterway bridge. Construction shifts the westbound shift slightly north onto a new footprint from a new signature span above U.S. 1 (Biscayne Boulevard). The 1,025 foot bridge over Biscayne Boulevard will feature six sweeping arches, and a significantly higher vertical clearance then its predecessor.
Additionally, the 1.4-mile long project expands I-395 to six overall lanes. Ramp changes include moving the eastbound off-ramps at NE 2nd Avenue to N Miami Avenue and the westbound entrance ramps at NE 1st Avenue west to N Miami Avenue. A Record of Decision on the I-395/SR 836/I-95 Project was published by July 2010.6
Miami-Dade Expressway Authority (MDX) construction along SR 836 improves two miles of the Dolphin Expressway west from the Midtown Interchange to NW 17th Avenue. Improvements add a second deck linking SR 836 with MacArthur Causeway (SR A1A) while bypassing ramps along Interstate 395. The existing roadways along SR 836 will be repurposed as collector distributor roadways for the exchange with I-95/395. The overall project reconstructing I-95, I-395 and SR 836 costs $818 million. The anticipated completion is Fall 2024.7
The Florida State Road Department proposed three urban Interstates in a letter dated August 8, 1958 to the American Association of State Highway Officials (AASHO). They were I-195 along the Bayshore Connector in Downtown Miami, I-395 along the freeway spur linking Miami with Miami Beach, and I-110 along the spur south into Pensacola. AASHO approved these on November 12, 1958.
The State Road Department made changes to the urban Interstate numerology the following year. Correspondence with AASHO on June 11, 1959 outlined dropping the Bayshore Connector as I-195 and renumbering 36th Street (Julia Tuttle) Causeway east to Miami Beach from I-395 to I-195. AASHO approved the change on July 1, 1959.
The Interstate 395 section of the Dolphin Expressway was built in two phases between 19672 and 1971. Phase one included the portion between the Midtown Interchange (I-95) and Miami Avenue, while phase two completed the connection to MacArthur Causeway (SR A1A).3 The entire freeway spur opened to traffic on the afternoon of March 26, 1971.4
A 1996 Florida Department of Transportation (FDOT) improvement plan outlined expanding Interstate 395 with additional lanes. Met with local opposition, the proposal never came to fruition. Other improvements considered for the freeway spur arose in the early 2000s, ranging from a below grade section of freeway to new elevated spans.5