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Mayor’s Message continued





                                                                    Meanwhile, there are the developments with Miami.
                                                                    A month or so ago, Chris Hodgkins, the head of the
                                                                    concessionaire operating the Miami Tunnel, reached out to
                                                                    my office inviting me to tour the facility in light of our ongoing
                                                                    discussions. I then asked county leaders if they wanted to
                                                                    join me.
                                                                    The trip was enlightening. The Miami tunnel was built through
                                                                    a public-private partnership between the Florida Department
                                                                    of Transportation and a consortium of two international firms –
                                                                    Meridiam and Bouygues.
                                                                    It was the first ever P3 for FDOT and required the consortium
                                                                    to design, finance, build, operate and maintain the port
                                                                    tunnel. The deal has now been used internationally as a model
                                                                    for P3 infrastructure projects.

                                                                    The project was completed $90 million under its $1 billion
                                                                    price tag and on time.
             The tunnel would be shallow at 55 feet deep, thus not   Hodgkins noted to the group that the Miami tunnel had to
             requiring substantial digging. Brightline has reviewed the   address resiliency concerns similar to the questions raised in
             proposed gradient in the proposed tunnel and said that it is   Fort Lauderdale. They built flood gates like those that BDO
             acceptable for commuter traffic.                       has proposed and have used them multiple times during
             The design keeps the tunnel entirely within the railroad’s   hurricane warnings.
             existing right-of-way except at the river itself, where it would   Some have questioned the viability of tunnel construction
             deviate slightly to avoid the pilings of the existing train bridge.   in South Florida given the geotechnical dynamics here.
             There would be the need to obtain the underground rights to   But Hodgkins said the Miami tunnel was built through a
             three small portions of property — two are owned by the city   limestone base similar to that in Fort Lauderdale and that they
             and the third is owned by a developer who is willing to work   compensated for its porous nature by inserting polymer into
             with us because of the substantial impact a bridge would have   gaps to shore it up.
             on his planned project.
                                                                    He also addressed the issue of construction vibrations,
             Some people have questioned the resiliency of a tunnel given the   agreeing with BDO that the tunneling technology avoids that.
             flooding and heavy rains experienced in the region. But BDO   He said it was important to his project to avoid vibration so as
             plans for that by installing major flood gates at each portal.  to both protect structures like the Children’s Museum and not

             Others question whether there would be vibration during   disturb the animals at Jungle Island.
             construction that could harm existing structures, but BDO    Let’s hope that this progress continues and that we all can
             notes that the tunneling technology they propose has been   agree on a tunnel. We need to protect our vibrant downtown
             used under highly developed locations such as Chinatown in   and our historic district and that we do not further divide
             San Francisco.                                         communities as the train tracks long have.
             BDO’s estimated price tag is $888 million, less than the $3   Here are some other recent developments in the city.
             billion that other consultants suggested. While more than the
             almost $600 million that the county estimates a bridge would   Vacation rentals. Unfortunately, the Florida Legislature passed
             cost, BDO says the difference likely could be made up through   a proposal that would further limit the ability of cities across
             new federal infrastructure grant funding.              the state from regulating short-term rentals.
             Also, BDO estimates that the operation and maintenance of   As we have seen, these rentals can tremendously disrupt
             the tunnel would cost $2.5 million a year. That’s one-tenth of   neighborhoods with noise, traffic and garbage as tenants
             what other consultants estimated. The Broward Metropolitan   move in and out daily and weekly. The city needs to be
             Planning Organization now acknowledges that the earlier   able to impose well-reasoned regulations to protect the
             estimate was very high because those consultants had more   neighborhoods that we so love.
             unknown factors to consider than BDO did.

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