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Front Page » Top Stories » “Signature bridge” on I-395 design due soon

“Signature bridge” on I-395 design due soon

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Written by on October 25, 2016

“Signature bridge” on I-395 design due soon

Five design firms have earned the right to submit a final design proposal for what’s being called a “signature bridge” on I-395 in downtown Miami and one of them should get a contract by spring, according to state transportation officials.

The Florida Department of Transportation anticipates construction to begin in late 2017 and last five years. A state website devoted to the I-395 improvement project lists December 2017 as the construction start date.

A change from the original plan is the addition of three related components, which adds more than $200 million to the overall cost, bringing it to $800 million, according to Maria I. Perdomo of the state transportation department and project manager for the I-395 project.

The bulk of the project is to rebuild 1.4 miles of I-395 from the I-95/Midtown interchange to the west channel bridge of the MacArthur Causeway in Miami.

The freeway to be rebuilt is part of State Road 836, locally known as the Dolphin Expressway. The portion between I-95 and the causeway is designated as I-395 and takes traffic to and from Watson Island and Miami Beach.

Ms. Perdomo said the total project now consists of four separate components: the I-395 reconstruction; improvements to Miami-Dade Expressway Authority’s SR 83611; I-95 pavement reconstruction; and the westbound connector.

The project funding is divided into those components as well, she said.

The maximum construction funding for each component is $555 million to improve I-395 including the new bridge; $186 million to improve MDX SR 83611; $25 million to reconstruct I-95 pavement; and $35 million for the work on the westbound connector.

“The department added the MDX SR 83611, I-95 pavement reconstruction and the westbound connector components to the original I-395 reconstruction component, which increased the estimate from $600 million to $800 million,” Ms. Perdomo said.

The latest progress in the overall project came this summer when the transportation department sought proposals for the bridge, based on minimum requirements the department set for the bridge and the plaza space beneath it.

The minimum requirements for the bridge include a minimum suspended span length 500 feet and a minimum elevation above ground of 245 feet.

The minimum requirements for the open spaces underneath are a combination of sidewalks and plantings. An aesthetics manual that was part of the state’s request for proposals noted that drainage must be handled in a way to allow “development of the full space” under the bridge.

“The department is currently in the procurement process,” Ms. Perdomo said.

“The final design concepts for the signature bridge are due at the beginning of next year. At this time, five firms passed the pass/fail phase of the Aesthetic Signature Bridge Proposal. We are anticipating award of the project to the winning proposer by spring of next year,” she said.

The I-395 project involves rebuilding the I-395 corridor to increase capacity and improve safety by eliminating geometric and operational deficiencies.

New elevated ramps, one for both the east and west directions, will provide a direct link between I-95 and I-395. The project includes building a signature bridge over Biscayne Boulevard. In addition to the new bridge, the project will enhance streetscape design underneath the bridge.

Main goals include creating a visually appealing bridge, and building higher structures that will improve visual quality, allowing for multiple activities underneath the bridge.

Design goals include opening and brightening the environments along city streets that run under the expressway like Biscayne Boulevard, Northwest 13th and 14th streets, Northeast First and North Miami avenues and others.

The MDX 83611 project is to improve capacity, adding new westbound and eastbound facilities and widening the SR 836 mainline in both directions.

The new eastbound facility will be at Northwest 12th Avenue to directly connect to I-95 and I-395. The new westbound facility will be from I-95 south providing an exit to Northwest North River Drive and to SR 836.

FDOT has partnered with MDX to fund part of this new westbound connection.

The I-95 pavement reconstruction includes removing and replacing the mainline I-95 concrete pavement and a bridge traffic railing barrier retrofit.

10 Responses to “Signature bridge” on I-395 design due soon

  1. DC Copeland

    October 26, 2016 at 7:07 am

    No matter how you slice it, you’re still splitting downtown in half– which really was the main reason this cockamamie idea came up in the first place, to “open up” the view from the Arsht Center. Most ironically, the rendering above doesn’t show much of an improvement on what is already there. Yes, it’s higher and topped off with a “signature bride” (a generic signature popping up around the world) but it still can’t get past the… dark underpass (which again was one of the main reasons to futz with the Biscayne Blvd overpass). For nearly $1 billion dollars (the approximate amount to build the PortMiami tunnel) you gotta wonder why that original idea is no longer valid since it buries all that traffic, noise, and stink and eliminates scenic-blocking bridge superstructure.

    • JAS33131

      October 26, 2016 at 2:47 pm

      Totally agree. And for this price, how much more Metrorail could we have gotten? After all, Miami Today has deemed further heavy rail “too expensive” but says nothing about this truly idiotic waste of money.

  2. JAS33131

    October 26, 2016 at 2:50 pm

    This is a city where we can’t get $500k of buffered bike lanes down our major roads because they’re county- or state-owned but all these agencies *including the feds* had no problem coordinating to rebuild something that already exists and works just fine to improve views for a local opera house. I mean really. What a scandal this should be.

  3. Irwin Seltzer

    October 26, 2016 at 3:54 pm

    But no money for Baylink to provide an alternative non-car way to get to Miami Beach… right?

  4. Miguel

    October 27, 2016 at 1:34 am

    There was plenty ($) for the reconstruction of the 836/826 interchange (500 million+). Always funds for highway expansions, but… still waiting for baylink, Metro-rail to West miami and north to county line, some form of rail to ever growing ‘Midtown’ area and Wynnwood, etc.

  5. Marc

    October 27, 2016 at 7:58 am

    This would probably be just enough to get a heavy rail line to 5th and Alton but that’s about it. By the way this entirely FDOT money, not local, so you know they’d never use it for rail.

  6. Tomas Carmelo

    October 27, 2016 at 9:28 am

    Why couldn’t Bay Link be linked to this project that is already partially funded?

  7. Jose Pepe Cancio

    October 28, 2016 at 8:56 am

    Great news, the 836 /I 95 going North is a big traffic mess right now, also going east and this future project will improve traffic and safety Please let the FDOT do their job and after, the Baylink between Miami Dade County and the City of Miami Beach will go.
    Why some comments attacking the Miami Today, that is the only newspaper that bring real information about was going in MDC

  8. Miami city man

    October 30, 2016 at 10:03 pm

    Build ever more roadways; fill them with ever more cars; repeat infinitum.

  9. Hugo

    November 4, 2016 at 2:59 pm

    Our current infrastructure is breaking down (Metrorail and buses) and they are only thinking improving post card photos? clap, clap, clap smh

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